commit 889c121f7eb8a21bb0828ae524922641c67d473d · notnite.com/core

+27 -2

appview/db/pulls.go

···

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       	return false

     

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       }

     

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       -
       func (s PullSubmission) AsNiceDiff(targetBranch string) types.NiceDiff {

     

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       +
       func (s PullSubmission) AsDiff(targetBranch string) ([]*gitdiff.File, error) {

     

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       	patch := s.Patch

     

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       -
       	diffs, _, err := gitdiff.Parse(strings.NewReader(patch))

     

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       	// if format-patch; then extract each patch

     

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       	var diffs []*gitdiff.File

     

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       	if patchutil.IsFormatPatch(patch) {

     

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       		patches, err := patchutil.ExtractPatches(patch)

     

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       		if err != nil {

     

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       			return nil, err

     

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       		}

     

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       		var ps [][]*gitdiff.File

     

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       		for _, p := range patches {

     

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       			ps = append(ps, p.Files)

     

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       		}

     

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       		diffs = patchutil.CombineDiff(ps...)

     

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       	} else {

     

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       		d, _, err := gitdiff.Parse(strings.NewReader(patch))

     

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       		if err != nil {

     

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       			return nil, err

     

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       		}

     

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       		diffs = d

     

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       	}

     

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       	return diffs, nil

     

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       }

     

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       +
       

     

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       func (s PullSubmission) AsNiceDiff(targetBranch string) types.NiceDiff {

     

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       	diffs, err := s.AsDiff(targetBranch)

     

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       	if err != nil {

     

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       		log.Println(err)

     

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       	}

+21 -5

appview/pages/pages.go

···

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       	"slices"

     

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       	"strings"

     

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       	"tangled.sh/tangled.sh/core/appview/auth"

     

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       	"tangled.sh/tangled.sh/core/appview/db"

     

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       	"tangled.sh/tangled.sh/core/appview/pages/markup"

     

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       	"tangled.sh/tangled.sh/core/appview/state/userutil"

     

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       	"tangled.sh/tangled.sh/core/patchutil"

     

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       	"tangled.sh/tangled.sh/core/types"

     

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       +
       

     

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       	"github.com/alecthomas/chroma/v2"

     

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       	chromahtml "github.com/alecthomas/chroma/v2/formatters/html"

     

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       	"github.com/alecthomas/chroma/v2/lexers"

     

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       	"github.com/alecthomas/chroma/v2/styles"

     

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       	"github.com/bluesky-social/indigo/atproto/syntax"

     

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       	"github.com/microcosm-cc/bluemonday"

     

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       	"tangled.sh/tangled.sh/core/appview/auth"

     

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       	"tangled.sh/tangled.sh/core/appview/db"

     

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       	"tangled.sh/tangled.sh/core/appview/pages/markup"

     

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       -
       	"tangled.sh/tangled.sh/core/appview/state/userutil"

     

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       	"tangled.sh/tangled.sh/core/types"

     

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       )

     

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       //go:embed templates/* static

     
···

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       // this name is a mouthful

     

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       func (p *Pages) RepoPullPatchPage(w io.Writer, params RepoPullPatchParams) error {

     

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       	return p.execute("repo/pulls/patch", w, params)

     

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       }

     

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       type RepoPullInterdiffParams struct {

     

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       	LoggedInUser *auth.User

     

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       	DidHandleMap map[string]string

     

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       	RepoInfo     RepoInfo

     

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       	Pull         *db.Pull

     

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       	Round        int

     

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       	Interdiff    *patchutil.InterdiffResult

     

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       }

     

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       // this name is a mouthful

     

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       func (p *Pages) RepoPullInterdiffPage(w io.Writer, params RepoPullInterdiffParams) error {

     

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       	return p.execute("repo/pulls/interdiff", w, params)

     

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       }

     

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       type PullPatchUploadParams struct {

+148

appview/pages/templates/repo/fragments/interdiff.html

···

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       {{ define "repo/fragments/interdiff" }}

     

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       {{ $repo := index . 0 }}

     

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       {{ $x := index . 1 }}

     

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       {{ $diff := $x.Files }}

     

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       +
       

     

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         <section class="mt-6 p-6 border border-gray-200 dark:border-gray-700 w-full mx-auto rounded bg-white dark:bg-gray-800 drop-shadow-sm">

     

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           <div class="diff-stat">

     

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             <div class="flex gap-2 items-center">

     

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               <strong class="text-sm uppercase dark:text-gray-200">files</strong>

     

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             </div>

     

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             <div class="overflow-x-auto">

     

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               <ul class="dark:text-gray-200">

     

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               {{ range $diff }}

     

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                 <li><a href="#file-{{ .Name }}" class="dark:hover:text-gray-300">{{ .Name }}</a></li>

     

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               {{ end }}

     

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               </ul>

     

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             </div>

     

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           </div>

     

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         </section>

     

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       +
       

     

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         {{ $last := sub (len $diff) 1 }}

     

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         {{ range $idx, $hunk := $diff }}

     

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         {{ with $hunk }}

     

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         <section class="mt-6 border border-gray-200 dark:border-gray-700 w-full mx-auto rounded bg-white dark:bg-gray-800 drop-shadow-sm">

     

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       +
           <div id="file-{{ .Name }}">

     

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             <div id="diff-file">

     

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               <details {{ if not (.Status.IsOnlyInOne) }}open{{end}}>

     

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                 <summary class="list-none cursor-pointer sticky top-0">

     

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       +
                   <div id="diff-file-header" class="rounded cursor-pointer bg-white dark:bg-gray-800 flex justify-between">

     

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                     <div id="left-side-items" class="p-2 flex gap-2 items-center overflow-x-auto">

     

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                       <div class="flex gap-1 items-center" style="direction: ltr;">

     

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                         {{ $markerstyle := "diff-type p-1 mr-1 font-mono text-sm rounded select-none" }}

     

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       +
                         {{ if .Status.IsOk }}

     

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                           <span class="bg-gray-100 text-gray-700 dark:bg-gray-700 dark:text-gray-300 {{ $markerstyle }}">CHANGED</span>

     

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       +
                         {{ else if .Status.IsUnchanged }}

     

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       +
                           <span class="bg-gray-100 text-gray-700 dark:bg-gray-700 dark:text-gray-300 {{ $markerstyle }}">UNCHANGED</span>

     

       37
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       +
                         {{ else if .Status.IsOnlyInOne }}

     

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       +
                           <span class="bg-red-100 text-red-700 dark:bg-red-800/50 dark:text-red-400 {{ $markerstyle }}">REVERTED</span>

     

       39
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       +
                         {{ else if .Status.IsOnlyInTwo }}

     

       40
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                           <span class="bg-green-100 text-green-700 dark:bg-green-800/50 dark:text-green-400 {{ $markerstyle }}">NEW</span>

     

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       +
                         {{ else if .Status.IsRebased }}

     

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                           <span class="bg-amber-100 text-amber-700 dark:bg-amber-800/50 dark:text-amber-400 {{ $markerstyle }}">REBASED</span>

     

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                         {{ else }}

     

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       +
                           <span class="bg-red-100 text-red-700 dark:bg-red-800/50 dark:text-red-400 {{ $markerstyle }}">ERROR</span>

     

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       +
                         {{ end }}

     

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       +
                       </div>

     

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       +
       

     

       48
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       +
                       <div class="flex gap-2 items-center overflow-x-auto" style="direction: rtl;">

     

       49
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       +
                         <a class="dark:text-white whitespace-nowrap overflow-x-auto" href="">

     

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                           {{ .Name }}

     

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       +
                         </a>

     

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       +
                       </div>

     

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       +
                     </div>

     

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       +
       

     

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                     {{ $iconstyle := "p-1 mx-1 hover:bg-gray-100 dark:hover:bg-gray-700 rounded" }}

     

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                     <div id="right-side-items" class="p-2 flex items-center">

     

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                       <a title="top of file" href="#file-{{ .Name }}" class="{{ $iconstyle }}">{{ i "arrow-up-to-line" "w-4 h-4" }}</a>

     

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                       {{ if gt $idx 0 }}

     

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                         {{ $prev := index $diff (sub $idx 1) }}

     

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                         <a title="previous file" href="#file-{{ $prev.Name }}" class="{{ $iconstyle }}">{{ i "arrow-up" "w-4 h-4" }}</a>

     

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                       {{ end }}

     

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       +
       

     

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                       {{ if lt $idx $last }}

     

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                         {{ $next := index $diff (add $idx 1) }}

     

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                         <a title="next file" href="#file-{{ $next.Name }}" class="{{ $iconstyle }}">{{ i "arrow-down" "w-4 h-4" }}</a>

     

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                       {{ end }}

     

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                     </div>

     

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       +
       

     

       69
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                   </div>

     

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                 </summary>

     

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       +
       

     

       72
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                 <div class="transition-all duration-700 ease-in-out">

     

       73
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                   {{ if .Status.IsUnchanged }}

     

       74
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       +
                     <p class="text-center text-gray-400 dark:text-gray-500 p-4">

     

       75
       75
       +
                     This file has not been changed.

     

       76
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       +
                     </p>

     

       77
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                   {{ else if .Status.IsRebased }}

     

       78
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                     <p class="text-center text-gray-400 dark:text-gray-500 p-4">

     

       79
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                     This patch was likely rebased, as context lines do not match.

     

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                     </p>

     

       81
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                   {{ else if .Status.IsError }}

     

       82
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                     <p class="text-center text-gray-400 dark:text-gray-500 p-4">

     

       83
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       +
                     Failed to calculate interdiff for this file.

     

       84
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       +
                     </p>

     

       85
       85
       +
                   {{ else }}

     

       86
       86
       +
                   {{ $name := .Name }}

     

       87
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       +
                   <pre class="overflow-x-auto"><div class="overflow-x-auto"><div class="min-w-full inline-block">{{- range .TextFragments -}}<div class="bg-gray-100 dark:bg-gray-700 text-gray-500 dark:text-gray-400 select-none text-center">&middot;&middot;&middot;</div>

     

       88
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       +
                    {{- $oldStart := .OldPosition -}}

     

       89
       89
       +
                    {{- $newStart := .NewPosition -}}

     

       90
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       +
                    {{- $lineNrStyle := "min-w-[3.5rem] flex-shrink-0 select-none text-right bg-white dark:bg-gray-800 scroll-mt-10 target:border target:border-amber-500 target:rounded " -}}

     

       91
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       +
                    {{- $linkStyle := "text-gray-400 dark:text-gray-500 hover:underline" -}}

     

       92
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       +
                    {{- $lineNrSepStyle1 := "" -}}

     

       93
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       +
                    {{- $lineNrSepStyle2 := "pr-2" -}}

     

       94
       94
       +
                    {{- range .Lines -}}

     

       95
       95
       +
                      {{- if eq .Op.String "+" -}}

     

       96
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       +
                        <div class="bg-green-100 dark:bg-green-800/30 text-green-700 dark:text-green-400 flex min-w-full items-center">

     

       97
       97
       +
                          <div class="{{$lineNrStyle}} {{$lineNrSepStyle1}}"><span aria-hidden="true" class="invisible">{{$newStart}}</span></div>

     

       98
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       +
                          <div class="{{$lineNrStyle}} {{$lineNrSepStyle2}}" id="{{$name}}-N{{$newStart}}"><a class="{{$linkStyle}}" href="#{{$name}}-N{{$newStart}}">{{ $newStart }}</a></div>

     

       99
       99
       +
                          <div class="w-5 flex-shrink-0 select-none text-center">{{ .Op.String }}</div>

     

       100
       100
       +
                          <div class="px-2">{{ .Line }}</div>

     

       101
       101
       +
                        </div>

     

       102
       102
       +
                        {{- $newStart = add64 $newStart 1 -}}

     

       103
       103
       +
                      {{- end -}}

     

       104
       104
       +
                      {{- if eq .Op.String "-" -}}

     

       105
       105
       +
                        <div class="bg-red-100 dark:bg-red-800/30 text-red-700 dark:text-red-400 flex min-w-full items-center">

     

       106
       106
       +
                          <div class="{{$lineNrStyle}} {{$lineNrSepStyle1}}" id="{{$name}}-O{{$oldStart}}"><a class="{{$linkStyle}}" href="#{{$name}}-O{{$oldStart}}">{{ $oldStart }}</a></div>

     

       107
       107
       +
                          <div class="{{$lineNrStyle}} {{$lineNrSepStyle2}}"><span aria-hidden="true" class="invisible">{{$oldStart}}</span></div>

     

       108
       108
       +
                          <div class="w-5 flex-shrink-0 select-none text-center">{{ .Op.String }}</div>

     

       109
       109
       +
                          <div class="px-2">{{ .Line }}</div>

     

       110
       110
       +
                        </div>

     

       111
       111
       +
                        {{- $oldStart = add64 $oldStart 1 -}}

     

       112
       112
       +
                      {{- end -}}

     

       113
       113
       +
                      {{- if eq .Op.String " " -}}

     

       114
       114
       +
                        <div class="bg-white dark:bg-gray-800 text-gray-500 dark:text-gray-400 flex min-w-full items-center">

     

       115
       115
       +
                          <div class="{{$lineNrStyle}} {{$lineNrSepStyle1}}" id="{{$name}}-O{{$oldStart}}"><a class="{{$linkStyle}}" href="#{{$name}}-O{{$oldStart}}">{{ $oldStart }}</a></div>

     

       116
       116
       +
                          <div class="{{$lineNrStyle}} {{$lineNrSepStyle2}}" id="{{$name}}-N{{$newStart}}"><a class="{{$linkStyle}}" href="#{{$name}}-N{{$newStart}}">{{ $newStart }}</a></div>

     

       117
       117
       +
                          <div class="w-5 flex-shrink-0 select-none text-center">{{ .Op.String }}</div>

     

       118
       118
       +
                          <div class="px-2">{{ .Line }}</div>

     

       119
       119
       +
                        </div>

     

       120
       120
       +
                        {{- $newStart = add64 $newStart 1 -}}

     

       121
       121
       +
                        {{- $oldStart = add64 $oldStart 1 -}}

     

       122
       122
       +
                      {{- end -}}

     

       123
       123
       +
                    {{- end -}}

     

       124
       124
       +
                    {{- end -}}</div></div></pre>

     

       125
       125
       +
                   {{- end -}}

     

       126
       126
       +
                 </div>

     

       127
       127
       +
       

     

       128
       128
       +
               </details>

     

       129
       129
       +
       

     

       130
       130
       +
             </div>

     

       131
       131
       +
           </div>

     

       132
       132
       +
         </section>

     

       133
       133
       +
         {{ end }}

     

       134
       134
       +
         {{ end }}

     

       135
       135
       +
       {{ end }}

     

       136
       136
       +
       

     

       137
       137
       +
       {{ define "statPill" }}

     

       138
       138
       +
         <div class="flex items-center font-mono text-sm">

     

       139
       139
       +
           {{ if and .Insertions .Deletions }}

     

       140
       140
       +
             <span class="rounded-l p-1 select-none bg-green-100 text-green-700 dark:bg-green-800/50 dark:text-green-400">+{{ .Insertions }}</span>

     

       141
       141
       +
             <span class="rounded-r p-1 select-none bg-red-100 text-red-700 dark:bg-red-800/50 dark:text-red-400">-{{ .Deletions }}</span>

     

       142
       142
       +
           {{ else if .Insertions }}

     

       143
       143
       +
             <span class="rounded p-1 select-none bg-green-100 text-green-700 dark:bg-green-800/50 dark:text-green-400">+{{ .Insertions }}</span>

     

       144
       144
       +
           {{ else if .Deletions }}

     

       145
       145
       +
             <span class="rounded p-1 select-none bg-red-100 text-red-700 dark:bg-red-800/50 dark:text-red-400">-{{ .Deletions }}</span>

     

       146
       146
       +
           {{ end }}

     

       147
       147
       +
         </div>

     

       148
       148
       +
       {{ end }}

+25

appview/pages/templates/repo/pulls/interdiff.html

···

       1
       1
       +
       {{ define "title" }}

     

       2
       2
       +
          interdiff of round #{{ .Round }} and #{{ sub .Round 1 }}; pull #{{ .Pull.PullId }} &middot; {{ .RepoInfo.FullName }}

     

       3
       3
       +
       {{ end }}

     

       4
       4
       +
       

     

       5
       5
       +
       {{ define "content" }}

     

       6
       6
       +
         <section class="rounded drop-shadow-sm bg-white dark:bg-gray-800 py-4 px-6 dark:text-white">

     

       7
       7
       +
           <header class="pb-2">

     

       8
       8
       +
             <div class="flex gap-3 items-center mb-3">

     

       9
       9
       +
               <a href="/{{ .RepoInfo.FullName }}/pulls/{{ .Pull.PullId }}/" class="flex items-center gap-2 font-medium">

     

       10
       10
       +
                 {{ i "arrow-left" "w-5 h-5" }}

     

       11
       11
       +
                 back

     

       12
       12
       +
               </a>

     

       13
       13
       +
               <span class="select-none before:content-['\00B7']"></span>

     

       14
       14
       +
               interdiff of round #{{ .Round }} and #{{ sub .Round 1 }}

     

       15
       15
       +
             </div>

     

       16
       16
       +
             <div class="border-t border-gray-200 dark:border-gray-700 my-2"></div>

     

       17
       17
       +
             {{ template "repo/pulls/fragments/pullHeader" . }}

     

       18
       18
       +
           </header>

     

       19
       19
       +
         </section>

     

       20
       20
       +
       

     

       21
       21
       +
         <section>

     

       22
       22
       +
           {{ template "repo/fragments/interdiff" (list .RepoInfo.FullName .Interdiff) }}

     

       23
       23
       +
         </section>

     

       24
       24
       +
       {{ end }}

     

       25
       25
       +

+7 -2

appview/pages/templates/repo/pulls/pull.html

···

       51
       51
        
                     </span>

     

       52
       52
        
                   </div>

     

       53
       53
        
       

     

       54
       54
       -
                   {{ if $.Pull.IsPatchBased }}

     

       55
       55
       -
                   <!-- view patch -->

     

       56
       54
        
                   <a class="btn flex items-center gap-2 no-underline hover:no-underline p-2"

     

       57
       55
        
                      hx-boost="true"

     

       58
       56
        
                      href="/{{ $.RepoInfo.FullName }}/pulls/{{ $.Pull.PullId }}/round/{{.RoundNumber}}">

     

       59
       57
        
                     {{ i "file-diff" "w-4 h-4" }} <span class="hidden md:inline">view patch</span>

     

       60
       58
        
                   </a>

     

       59
       59
       +
                   {{ if not (eq .RoundNumber 0) }}

     

       60
       60
       +
                   <a class="btn flex items-center gap-2 no-underline hover:no-underline p-2"

     

       61
       61
       +
                      hx-boost="true"

     

       62
       62
       +
                      href="/{{ $.RepoInfo.FullName }}/pulls/{{ $.Pull.PullId }}/round/{{.RoundNumber}}/interdiff">

     

       63
       63
       +
                     {{ i "file-diff" "w-4 h-4" }} <span class="hidden md:inline">interdiff</span>

     

       64
       64
       +
                   </a>

     

       65
       65
       +
                   <span id="interdiff-error-{{.RoundNumber}}"></span>

     

       61
       66
        
                   {{ end }}

     

       62
       67
        
                 </div>

     

       63
       68
        
               </summary>

+69 -1

appview/state/pull.go

···

       12
       12
        
       	"strconv"

     

       13
       13
        
       	"time"

     

       14
       14
        
       

     

       15
       15
       -
       	"github.com/go-chi/chi/v5"

     

       16
       15
        
       	"tangled.sh/tangled.sh/core/api/tangled"

     

       17
       16
        
       	"tangled.sh/tangled.sh/core/appview/auth"

     

       18
       17
        
       	"tangled.sh/tangled.sh/core/appview/db"

     
···

       23
       22
        
       	comatproto "github.com/bluesky-social/indigo/api/atproto"

     

       24
       23
        
       	"github.com/bluesky-social/indigo/atproto/syntax"

     

       25
       24
        
       	lexutil "github.com/bluesky-social/indigo/lex/util"

     

       25
       25
       +
       	"github.com/go-chi/chi/v5"

     

       26
       26
        
       )

     

       27
       27
        
       

     

       28
       28
        
       // htmx fragment

     
···

       305
       305
        
       		Diff:         pull.Submissions[roundIdInt].AsNiceDiff(pull.TargetBranch),

     

       306
       306
        
       	})

     

       307
       307
        
       

     

       308
       308
       +
       }

     

       309
       309
       +
       

     

       310
       310
       +
       func (s *State) RepoPullInterdiff(w http.ResponseWriter, r *http.Request) {

     

       311
       311
       +
       	user := s.auth.GetUser(r)

     

       312
       312
       +
       

     

       313
       313
       +
       	f, err := fullyResolvedRepo(r)

     

       314
       314
       +
       	if err != nil {

     

       315
       315
       +
       		log.Println("failed to get repo and knot", err)

     

       316
       316
       +
       		return

     

       317
       317
       +
       	}

     

       318
       318
       +
       

     

       319
       319
       +
       	pull, ok := r.Context().Value("pull").(*db.Pull)

     

       320
       320
       +
       	if !ok {

     

       321
       321
       +
       		log.Println("failed to get pull")

     

       322
       322
       +
       		s.pages.Notice(w, "pull-error", "Failed to get pull.")

     

       323
       323
       +
       		return

     

       324
       324
       +
       	}

     

       325
       325
       +
       

     

       326
       326
       +
       	roundId := chi.URLParam(r, "round")

     

       327
       327
       +
       	roundIdInt, err := strconv.Atoi(roundId)

     

       328
       328
       +
       	if err != nil || roundIdInt >= len(pull.Submissions) {

     

       329
       329
       +
       		http.Error(w, "bad round id", http.StatusBadRequest)

     

       330
       330
       +
       		log.Println("failed to parse round id", err)

     

       331
       331
       +
       		return

     

       332
       332
       +
       	}

     

       333
       333
       +
       

     

       334
       334
       +
       	if roundIdInt == 0 {

     

       335
       335
       +
       		http.Error(w, "bad round id", http.StatusBadRequest)

     

       336
       336
       +
       		log.Println("cannot interdiff initial submission")

     

       337
       337
       +
       		return

     

       338
       338
       +
       	}

     

       339
       339
       +
       

     

       340
       340
       +
       	identsToResolve := []string{pull.OwnerDid}

     

       341
       341
       +
       	resolvedIds := s.resolver.ResolveIdents(r.Context(), identsToResolve)

     

       342
       342
       +
       	didHandleMap := make(map[string]string)

     

       343
       343
       +
       	for _, identity := range resolvedIds {

     

       344
       344
       +
       		if !identity.Handle.IsInvalidHandle() {

     

       345
       345
       +
       			didHandleMap[identity.DID.String()] = fmt.Sprintf("@%s", identity.Handle.String())

     

       346
       346
       +
       		} else {

     

       347
       347
       +
       			didHandleMap[identity.DID.String()] = identity.DID.String()

     

       348
       348
       +
       		}

     

       349
       349
       +
       	}

     

       350
       350
       +
       

     

       351
       351
       +
       	currentPatch, err := pull.Submissions[roundIdInt].AsDiff(pull.TargetBranch)

     

       352
       352
       +
       	if err != nil {

     

       353
       353
       +
       		log.Println("failed to interdiff; current patch malformed")

     

       354
       354
       +
       		s.pages.Notice(w, fmt.Sprintf("interdiff-error-%d", roundIdInt), "Failed to calculate interdiff; current patch is invalid.")

     

       355
       355
       +
       		return

     

       356
       356
       +
       	}

     

       357
       357
       +
       

     

       358
       358
       +
       	previousPatch, err := pull.Submissions[roundIdInt-1].AsDiff(pull.TargetBranch)

     

       359
       359
       +
       	if err != nil {

     

       360
       360
       +
       		log.Println("failed to interdiff; previous patch malformed")

     

       361
       361
       +
       		s.pages.Notice(w, fmt.Sprintf("interdiff-error-%d", roundIdInt), "Failed to calculate interdiff; previous patch is invalid.")

     

       362
       362
       +
       		return

     

       363
       363
       +
       	}

     

       364
       364
       +
       

     

       365
       365
       +
       	interdiff := patchutil.Interdiff(previousPatch, currentPatch)

     

       366
       366
       +
       

     

       367
       367
       +
       	s.pages.RepoPullInterdiffPage(w, pages.RepoPullInterdiffParams{

     

       368
       368
       +
       		LoggedInUser: s.auth.GetUser(r),

     

       369
       369
       +
       		RepoInfo:     f.RepoInfo(s, user),

     

       370
       370
       +
       		Pull:         pull,

     

       371
       371
       +
       		Round:        roundIdInt,

     

       372
       372
       +
       		DidHandleMap: didHandleMap,

     

       373
       373
       +
       		Interdiff:    interdiff,

     

       374
       374
       +
       	})

     

       375
       375
       +
       	return

     

       308
       376
        
       }

     

       309
       377
        
       

     

       310
       378
        
       func (s *State) RepoPullPatchRaw(w http.ResponseWriter, r *http.Request) {

appview/state/router.go

···

       109
       109
        
       

     

       110
       110
        
       					r.Route("/round/{round}", func(r chi.Router) {

     

       111
       111
        
       						r.Get("/", s.RepoPullPatch)

     

       112
       112
       +
       						r.Get("/interdiff", s.RepoPullInterdiff)

     

       112
       113
        
       						r.Get("/actions", s.PullActions)

     

       113
       114
        
       						r.With(AuthMiddleware(s)).Route("/comment", func(r chi.Router) {

     

       114
       115
        
       							r.Get("/", s.PullComment)

+38

cmd/combinediff/main.go

···

       1
       1
       +
       package main

     

       2
       2
       +
       

     

       3
       3
       +
       import (

     

       4
       4
       +
       	"fmt"

     

       5
       5
       +
       	"os"

     

       6
       6
       +
       

     

       7
       7
       +
       	"github.com/bluekeyes/go-gitdiff/gitdiff"

     

       8
       8
       +
       	"tangled.sh/tangled.sh/core/patchutil"

     

       9
       9
       +
       )

     

       10
       10
       +
       

     

       11
       11
       +
       func main() {

     

       12
       12
       +
       	if len(os.Args) != 3 {

     

       13
       13
       +
       		fmt.Println("Usage: combinediff <patch1> <patch2>")

     

       14
       14
       +
       		os.Exit(1)

     

       15
       15
       +
       	}

     

       16
       16
       +
       

     

       17
       17
       +
       	patch1, err := os.Open(os.Args[1])

     

       18
       18
       +
       	if err != nil {

     

       19
       19
       +
       		fmt.Println(err)

     

       20
       20
       +
       	}

     

       21
       21
       +
       	patch2, err := os.Open(os.Args[2])

     

       22
       22
       +
       	if err != nil {

     

       23
       23
       +
       		fmt.Println(err)

     

       24
       24
       +
       	}

     

       25
       25
       +
       

     

       26
       26
       +
       	files1, _, err := gitdiff.Parse(patch1)

     

       27
       27
       +
       	if err != nil {

     

       28
       28
       +
       		fmt.Println(err)

     

       29
       29
       +
       	}

     

       30
       30
       +
       

     

       31
       31
       +
       	files2, _, err := gitdiff.Parse(patch2)

     

       32
       32
       +
       	if err != nil {

     

       33
       33
       +
       		fmt.Println(err)

     

       34
       34
       +
       	}

     

       35
       35
       +
       

     

       36
       36
       +
       	combined := patchutil.CombineDiff(files1, files2)

     

       37
       37
       +
       	fmt.Println(combined)

     

       38
       38
       +
       }

+38

cmd/interdiff/main.go

···

       1
       1
       +
       package main

     

       2
       2
       +
       

     

       3
       3
       +
       import (

     

       4
       4
       +
       	"fmt"

     

       5
       5
       +
       	"os"

     

       6
       6
       +
       

     

       7
       7
       +
       	"github.com/bluekeyes/go-gitdiff/gitdiff"

     

       8
       8
       +
       	"tangled.sh/tangled.sh/core/patchutil"

     

       9
       9
       +
       )

     

       10
       10
       +
       

     

       11
       11
       +
       func main() {

     

       12
       12
       +
       	if len(os.Args) != 3 {

     

       13
       13
       +
       		fmt.Println("Usage: interdiff <patch1> <patch2>")

     

       14
       14
       +
       		os.Exit(1)

     

       15
       15
       +
       	}

     

       16
       16
       +
       

     

       17
       17
       +
       	patch1, err := os.Open(os.Args[1])

     

       18
       18
       +
       	if err != nil {

     

       19
       19
       +
       		fmt.Println(err)

     

       20
       20
       +
       	}

     

       21
       21
       +
       	patch2, err := os.Open(os.Args[2])

     

       22
       22
       +
       	if err != nil {

     

       23
       23
       +
       		fmt.Println(err)

     

       24
       24
       +
       	}

     

       25
       25
       +
       

     

       26
       26
       +
       	files1, _, err := gitdiff.Parse(patch1)

     

       27
       27
       +
       	if err != nil {

     

       28
       28
       +
       		fmt.Println(err)

     

       29
       29
       +
       	}

     

       30
       30
       +
       

     

       31
       31
       +
       	files2, _, err := gitdiff.Parse(patch2)

     

       32
       32
       +
       	if err != nil {

     

       33
       33
       +
       		fmt.Println(err)

     

       34
       34
       +
       	}

     

       35
       35
       +
       

     

       36
       36
       +
       	interDiffResult := patchutil.Interdiff(files1, files2)

     

       37
       37
       +
       	fmt.Println(interDiffResult)

     

       38
       38
       +
       }

+3 -3

go.mod

···

       106
       106
        
       	go.uber.org/atomic v1.11.0 // indirect

     

       107
       107
        
       	go.uber.org/multierr v1.11.0 // indirect

     

       108
       108
        
       	go.uber.org/zap v1.26.0 // indirect

     

       109
       109
       -
       	golang.org/x/crypto v0.36.0 // indirect

     

       110
       110
       -
       	golang.org/x/net v0.37.0 // indirect

     

       111
       111
       -
       	golang.org/x/sys v0.31.0 // indirect

     

       109
       109
       +
       	golang.org/x/crypto v0.37.0 // indirect

     

       110
       110
       +
       	golang.org/x/net v0.39.0 // indirect

     

       111
       111
       +
       	golang.org/x/sys v0.32.0 // indirect

     

       112
       112
        
       	golang.org/x/time v0.5.0 // indirect

     

       113
       113
        
       	google.golang.org/protobuf v1.34.2 // indirect

     

       114
       114
        
       	gopkg.in/warnings.v0 v0.1.2 // indirect

+10 -10

go.sum

···

       303
       303
        
       golang.org/x/crypto v0.0.0-20220826181053-bd7e27e6170d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=

     

       304
       304
        
       golang.org/x/crypto v0.1.0/go.mod h1:RecgLatLF4+eUMCP1PoPZQb+cVrJcOPbHkTkbkB9sbw=

     

       305
       305
        
       golang.org/x/crypto v0.6.0/go.mod h1:OFC/31mSvZgRz0V1QTNCzfAI1aIRzbiufJtkMIlEp58=

     

       306
       306
       -
       golang.org/x/crypto v0.36.0 h1:AnAEvhDddvBdpY+uR+MyHmuZzzNqXSe/GvuDeob5L34=

     

       307
       307
       -
       golang.org/x/crypto v0.36.0/go.mod h1:Y4J0ReaxCR1IMaabaSMugxJES1EpwhBHhv2bDHklZvc=

     

       306
       306
       +
       golang.org/x/crypto v0.37.0 h1:kJNSjF/Xp7kU0iB2Z+9viTPMW4EqqsrywMXLJOOsXSE=

     

       307
       307
       +
       golang.org/x/crypto v0.37.0/go.mod h1:vg+k43peMZ0pUMhYmVAWysMK35e6ioLh3wB8ZCAfbVc=

     

       308
       308
        
       golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 h1:2dVuKD2vS7b0QIHQbpyTISPd0LeHDbnYEryqj5Q1ug8=

     

       309
       309
        
       golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56/go.mod h1:M4RDyNAINzryxdtnbRXRL/OHtkFuWGRjvuhBJpk2IlY=

     

       310
       310
        
       golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=

     
···

       327
       327
        
       golang.org/x/net v0.1.0/go.mod h1:Cx3nUiGt4eDBEyega/BKRp+/AlGL8hYe7U9odMt2Cco=

     

       328
       328
        
       golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=

     

       329
       329
        
       golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=

     

       330
       330
       -
       golang.org/x/net v0.37.0 h1:1zLorHbz+LYj7MQlSf1+2tPIIgibq2eL5xkrGk6f+2c=

     

       331
       331
       -
       golang.org/x/net v0.37.0/go.mod h1:ivrbrMbzFq5J41QOQh0siUuly180yBYtLp+CKbEaFx8=

     

       330
       330
       +
       golang.org/x/net v0.39.0 h1:ZCu7HMWDxpXpaiKdhzIfaltL9Lp31x/3fCP11bc6/fY=

     

       331
       331
       +
       golang.org/x/net v0.39.0/go.mod h1:X7NRbYVEA+ewNkCNyJ513WmMdQ3BineSwVtN2zD/d+E=

     

       332
       332
        
       golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=

     

       333
       333
        
       golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=

     

       334
       334
        
       golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=

     
···

       357
       357
        
       golang.org/x/sys v0.3.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

     

       358
       358
        
       golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

     

       359
       359
        
       golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

     

       360
       360
       -
       golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=

     

       361
       361
       -
       golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=

     

       360
       360
       +
       golang.org/x/sys v0.32.0 h1:s77OFDvIQeibCmezSnk/q6iAfkdiQaJi4VzroCFrN20=

     

       361
       361
       +
       golang.org/x/sys v0.32.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=

     

       362
       362
        
       golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=

     

       363
       363
        
       golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=

     

       364
       364
        
       golang.org/x/term v0.0.0-20220722155259-a9ba230a4035/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=

     

       365
       365
        
       golang.org/x/term v0.1.0/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=

     

       366
       366
        
       golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=

     

       367
       367
       -
       golang.org/x/term v0.30.0 h1:PQ39fJZ+mfadBm0y5WlL4vlM7Sx1Hgf13sMIY2+QS9Y=

     

       368
       368
       -
       golang.org/x/term v0.30.0/go.mod h1:NYYFdzHoI5wRh/h5tDMdMqCqPJZEuNqVR5xJLd/n67g=

     

       367
       367
       +
       golang.org/x/term v0.31.0 h1:erwDkOK1Msy6offm1mOgvspSkslFnIGsFnxOKoufg3o=

     

       368
       368
       +
       golang.org/x/term v0.31.0/go.mod h1:R4BeIy7D95HzImkxGkTW1UQTtP54tio2RyHz7PwK0aw=

     

       369
       369
        
       golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

     

       370
       370
        
       golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=

     

       371
       371
        
       golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=

     

       372
       372
        
       golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=

     

       373
       373
        
       golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=

     

       374
       374
        
       golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=

     

       375
       375
       -
       golang.org/x/text v0.23.0 h1:D71I7dUrlY+VX0gQShAThNGHFxZ13dGLBHQLVl1mJlY=

     

       376
       376
       -
       golang.org/x/text v0.23.0/go.mod h1:/BLNzu4aZCJ1+kcD0DNRotWKage4q2rGVAg4o22unh4=

     

       375
       375
       +
       golang.org/x/text v0.24.0 h1:dd5Bzh4yt5KYA8f9CJHCP4FB4D51c2c6JvN37xJJkJ0=

     

       376
       376
       +
       golang.org/x/text v0.24.0/go.mod h1:L8rBsPeo2pSS+xqN0d5u2ikmjtmoJbDBT1b7nHvFCdU=

     

       377
       377
        
       golang.org/x/time v0.5.0 h1:o7cqy6amK/52YcAKIPlM3a+Fpj35zvRj2TP+e1xFSfk=

     

       378
       378
        
       golang.org/x/time v0.5.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=

     

       379
       379
        
       golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

+168

patchutil/combinediff.go

···

       1
       1
       +
       package patchutil

     

       2
       2
       +
       

     

       3
       3
       +
       import (

     

       4
       4
       +
       	"fmt"

     

       5
       5
       +
       	"strings"

     

       6
       6
       +
       

     

       7
       7
       +
       	"github.com/bluekeyes/go-gitdiff/gitdiff"

     

       8
       8
       +
       )

     

       9
       9
       +
       

     

       10
       10
       +
       // original1 -> patch1 -> rev1

     

       11
       11
       +
       // original2 -> patch2 -> rev2

     

       12
       12
       +
       //

     

       13
       13
       +
       // original2 must be equal to rev1, so we can merge them to get maximal context

     

       14
       14
       +
       //

     

       15
       15
       +
       // finally,

     

       16
       16
       +
       // rev2' <- apply(patch2, merged)

     

       17
       17
       +
       // combineddiff <- diff(rev2', original1)

     

       18
       18
       +
       func combineFiles(file1, file2 *gitdiff.File) (*gitdiff.File, error) {

     

       19
       19
       +
       	fileName := bestName(file1)

     

       20
       20
       +
       

     

       21
       21
       +
       	o1 := CreatePreImage(file1)

     

       22
       22
       +
       	r1 := CreatePostImage(file1)

     

       23
       23
       +
       	o2 := CreatePreImage(file2)

     

       24
       24
       +
       

     

       25
       25
       +
       	merged, err := r1.Merge(&o2)

     

       26
       26
       +
       	if err != nil {

     

       27
       27
       +
       		return nil, err

     

       28
       28
       +
       	}

     

       29
       29
       +
       

     

       30
       30
       +
       	r2Prime, err := merged.Apply(file2)

     

       31
       31
       +
       	if err != nil {

     

       32
       32
       +
       		return nil, err

     

       33
       33
       +
       	}

     

       34
       34
       +
       

     

       35
       35
       +
       	// produce combined diff

     

       36
       36
       +
       	diff, err := Unified(o1.String(), fileName, r2Prime, fileName)

     

       37
       37
       +
       	if err != nil {

     

       38
       38
       +
       		return nil, err

     

       39
       39
       +
       	}

     

       40
       40
       +
       

     

       41
       41
       +
       	parsed, _, err := gitdiff.Parse(strings.NewReader(diff))

     

       42
       42
       +
       

     

       43
       43
       +
       	if len(parsed) != 1 {

     

       44
       44
       +
       		// no diff? the second commit reverted the changes from the first

     

       45
       45
       +
       		return nil, nil

     

       46
       46
       +
       	}

     

       47
       47
       +
       

     

       48
       48
       +
       	return parsed[0], nil

     

       49
       49
       +
       }

     

       50
       50
       +
       

     

       51
       51
       +
       // use empty lines for lines we are unaware of

     

       52
       52
       +
       //

     

       53
       53
       +
       // this raises an error only if the two patches were invalid or non-contiguous

     

       54
       54
       +
       func mergeLines(old, new string) (string, error) {

     

       55
       55
       +
       	var i, j int

     

       56
       56
       +
       

     

       57
       57
       +
       	// TODO: use strings.Lines

     

       58
       58
       +
       	linesOld := strings.Split(old, "\n")

     

       59
       59
       +
       	linesNew := strings.Split(new, "\n")

     

       60
       60
       +
       

     

       61
       61
       +
       	result := []string{}

     

       62
       62
       +
       

     

       63
       63
       +
       	for i < len(linesOld) || j < len(linesNew) {

     

       64
       64
       +
       		if i >= len(linesOld) {

     

       65
       65
       +
       			// rest of the file is populated from `new`

     

       66
       66
       +
       			result = append(result, linesNew[j])

     

       67
       67
       +
       			j++

     

       68
       68
       +
       			continue

     

       69
       69
       +
       		}

     

       70
       70
       +
       

     

       71
       71
       +
       		if j >= len(linesNew) {

     

       72
       72
       +
       			// rest of the file is populated from `old`

     

       73
       73
       +
       			result = append(result, linesOld[i])

     

       74
       74
       +
       			i++

     

       75
       75
       +
       			continue

     

       76
       76
       +
       		}

     

       77
       77
       +
       

     

       78
       78
       +
       		oldLine := linesOld[i]

     

       79
       79
       +
       		newLine := linesNew[j]

     

       80
       80
       +
       

     

       81
       81
       +
       		if oldLine != newLine && (oldLine != "" && newLine != "") {

     

       82
       82
       +
       			// context mismatch

     

       83
       83
       +
       			return "", fmt.Errorf("failed to merge files, found context mismatch at %d; oldLine: `%s`, newline: `%s`", i+1, oldLine, newLine)

     

       84
       84
       +
       		}

     

       85
       85
       +
       

     

       86
       86
       +
       		if oldLine == newLine {

     

       87
       87
       +
       			result = append(result, oldLine)

     

       88
       88
       +
       		} else if oldLine == "" {

     

       89
       89
       +
       			result = append(result, newLine)

     

       90
       90
       +
       		} else if newLine == "" {

     

       91
       91
       +
       			result = append(result, oldLine)

     

       92
       92
       +
       		}

     

       93
       93
       +
       		i++

     

       94
       94
       +
       		j++

     

       95
       95
       +
       	}

     

       96
       96
       +
       

     

       97
       97
       +
       	return strings.Join(result, "\n"), nil

     

       98
       98
       +
       }

     

       99
       99
       +
       

     

       100
       100
       +
       func combineTwo(patch1, patch2 []*gitdiff.File) []*gitdiff.File {

     

       101
       101
       +
       	fileToIdx1 := make(map[string]int)

     

       102
       102
       +
       	fileToIdx2 := make(map[string]int)

     

       103
       103
       +
       	visited := make(map[string]struct{})

     

       104
       104
       +
       	var result []*gitdiff.File

     

       105
       105
       +
       

     

       106
       106
       +
       	for idx, f := range patch1 {

     

       107
       107
       +
       		fileToIdx1[bestName(f)] = idx

     

       108
       108
       +
       	}

     

       109
       109
       +
       

     

       110
       110
       +
       	for idx, f := range patch2 {

     

       111
       111
       +
       		fileToIdx2[bestName(f)] = idx

     

       112
       112
       +
       	}

     

       113
       113
       +
       

     

       114
       114
       +
       	for _, f1 := range patch1 {

     

       115
       115
       +
       		fileName := bestName(f1)

     

       116
       116
       +
       		if idx, ok := fileToIdx2[fileName]; ok {

     

       117
       117
       +
       			f2 := patch2[idx]

     

       118
       118
       +
       

     

       119
       119
       +
       			// we have f1 and f2, combine them

     

       120
       120
       +
       			combined, err := combineFiles(f1, f2)

     

       121
       121
       +
       			if err != nil {

     

       122
       122
       +
       				fmt.Println(err)

     

       123
       123
       +
       			}

     

       124
       124
       +
       

     

       125
       125
       +
       			result = append(result, combined)

     

       126
       126
       +
       		} else {

     

       127
       127
       +
       			// only in patch1; add as-is

     

       128
       128
       +
       			result = append(result, f1)

     

       129
       129
       +
       		}

     

       130
       130
       +
       

     

       131
       131
       +
       		visited[fileName] = struct{}{}

     

       132
       132
       +
       	}

     

       133
       133
       +
       

     

       134
       134
       +
       	// for all files in patch2 that remain unvisited; we can just add them into the output

     

       135
       135
       +
       	for _, f2 := range patch2 {

     

       136
       136
       +
       		fileName := bestName(f2)

     

       137
       137
       +
       		if _, ok := visited[fileName]; ok {

     

       138
       138
       +
       			continue

     

       139
       139
       +
       		}

     

       140
       140
       +
       

     

       141
       141
       +
       		result = append(result, f2)

     

       142
       142
       +
       	}

     

       143
       143
       +
       

     

       144
       144
       +
       	return result

     

       145
       145
       +
       }

     

       146
       146
       +
       

     

       147
       147
       +
       // pairwise combination from first to last patch

     

       148
       148
       +
       func CombineDiff(patches ...[]*gitdiff.File) []*gitdiff.File {

     

       149
       149
       +
       	if len(patches) == 0 {

     

       150
       150
       +
       		return nil

     

       151
       151
       +
       	}

     

       152
       152
       +
       

     

       153
       153
       +
       	if len(patches) == 1 {

     

       154
       154
       +
       		return patches[0]

     

       155
       155
       +
       	}

     

       156
       156
       +
       

     

       157
       157
       +
       	combined := combineTwo(patches[0], patches[1])

     

       158
       158
       +
       

     

       159
       159
       +
       	newPatches := [][]*gitdiff.File{}

     

       160
       160
       +
       	newPatches = append(newPatches, combined)

     

       161
       161
       +
       	for i, p := range patches {

     

       162
       162
       +
       		if i >= 2 {

     

       163
       163
       +
       			newPatches = append(newPatches, p)

     

       164
       164
       +
       		}

     

       165
       165
       +
       	}

     

       166
       166
       +
       

     

       167
       167
       +
       	return CombineDiff(newPatches...)

     

       168
       168
       +
       }

+178

patchutil/image.go

···

       1
       1
       +
       package patchutil

     

       2
       2
       +
       

     

       3
       3
       +
       import (

     

       4
       4
       +
       	"bytes"

     

       5
       5
       +
       	"fmt"

     

       6
       6
       +
       	"strings"

     

       7
       7
       +
       

     

       8
       8
       +
       	"github.com/bluekeyes/go-gitdiff/gitdiff"

     

       9
       9
       +
       )

     

       10
       10
       +
       

     

       11
       11
       +
       type Line struct {

     

       12
       12
       +
       	LineNumber int64

     

       13
       13
       +
       	Content    string

     

       14
       14
       +
       	IsUnknown  bool

     

       15
       15
       +
       }

     

       16
       16
       +
       

     

       17
       17
       +
       func NewLineAt(lineNumber int64, content string) Line {

     

       18
       18
       +
       	return Line{

     

       19
       19
       +
       		LineNumber: lineNumber,

     

       20
       20
       +
       		Content:    content,

     

       21
       21
       +
       		IsUnknown:  false,

     

       22
       22
       +
       	}

     

       23
       23
       +
       }

     

       24
       24
       +
       

     

       25
       25
       +
       type Image struct {

     

       26
       26
       +
       	File string

     

       27
       27
       +
       	Data []*Line

     

       28
       28
       +
       }

     

       29
       29
       +
       

     

       30
       30
       +
       func (r *Image) String() string {

     

       31
       31
       +
       	var i, j int64

     

       32
       32
       +
       	var b strings.Builder

     

       33
       33
       +
       	for {

     

       34
       34
       +
       		i += 1

     

       35
       35
       +
       

     

       36
       36
       +
       		if int(j) >= (len(r.Data)) {

     

       37
       37
       +
       			break

     

       38
       38
       +
       		}

     

       39
       39
       +
       

     

       40
       40
       +
       		if r.Data[j].LineNumber == i {

     

       41
       41
       +
       			// b.WriteString(fmt.Sprintf("%d:", r.Data[j].LineNumber))

     

       42
       42
       +
       			b.WriteString(r.Data[j].Content)

     

       43
       43
       +
       			j += 1

     

       44
       44
       +
       		} else {

     

       45
       45
       +
       			//b.WriteString(fmt.Sprintf("%d:\n", i))

     

       46
       46
       +
       			b.WriteString("\n")

     

       47
       47
       +
       		}

     

       48
       48
       +
       	}

     

       49
       49
       +
       

     

       50
       50
       +
       	return b.String()

     

       51
       51
       +
       }

     

       52
       52
       +
       

     

       53
       53
       +
       func (r *Image) AddLine(line *Line) {

     

       54
       54
       +
       	r.Data = append(r.Data, line)

     

       55
       55
       +
       }

     

       56
       56
       +
       

     

       57
       57
       +
       // rebuild the original file from a patch

     

       58
       58
       +
       func CreatePreImage(file *gitdiff.File) Image {

     

       59
       59
       +
       	rf := Image{

     

       60
       60
       +
       		File: bestName(file),

     

       61
       61
       +
       	}

     

       62
       62
       +
       

     

       63
       63
       +
       	for _, fragment := range file.TextFragments {

     

       64
       64
       +
       		position := fragment.OldPosition

     

       65
       65
       +
       		for _, line := range fragment.Lines {

     

       66
       66
       +
       			switch line.Op {

     

       67
       67
       +
       			case gitdiff.OpContext:

     

       68
       68
       +
       				rl := NewLineAt(position, line.Line)

     

       69
       69
       +
       				rf.Data = append(rf.Data, &rl)

     

       70
       70
       +
       				position += 1

     

       71
       71
       +
       			case gitdiff.OpDelete:

     

       72
       72
       +
       				rl := NewLineAt(position, line.Line)

     

       73
       73
       +
       				rf.Data = append(rf.Data, &rl)

     

       74
       74
       +
       				position += 1

     

       75
       75
       +
       			case gitdiff.OpAdd:

     

       76
       76
       +
       				// do nothing here

     

       77
       77
       +
       			}

     

       78
       78
       +
       		}

     

       79
       79
       +
       	}

     

       80
       80
       +
       

     

       81
       81
       +
       	return rf

     

       82
       82
       +
       }

     

       83
       83
       +
       

     

       84
       84
       +
       // rebuild the revised file from a patch

     

       85
       85
       +
       func CreatePostImage(file *gitdiff.File) Image {

     

       86
       86
       +
       	rf := Image{

     

       87
       87
       +
       		File: bestName(file),

     

       88
       88
       +
       	}

     

       89
       89
       +
       

     

       90
       90
       +
       	for _, fragment := range file.TextFragments {

     

       91
       91
       +
       		position := fragment.NewPosition

     

       92
       92
       +
       		for _, line := range fragment.Lines {

     

       93
       93
       +
       			switch line.Op {

     

       94
       94
       +
       			case gitdiff.OpContext:

     

       95
       95
       +
       				rl := NewLineAt(position, line.Line)

     

       96
       96
       +
       				rf.Data = append(rf.Data, &rl)

     

       97
       97
       +
       				position += 1

     

       98
       98
       +
       			case gitdiff.OpAdd:

     

       99
       99
       +
       				rl := NewLineAt(position, line.Line)

     

       100
       100
       +
       				rf.Data = append(rf.Data, &rl)

     

       101
       101
       +
       				position += 1

     

       102
       102
       +
       			case gitdiff.OpDelete:

     

       103
       103
       +
       				// do nothing here

     

       104
       104
       +
       			}

     

       105
       105
       +
       		}

     

       106
       106
       +
       	}

     

       107
       107
       +
       

     

       108
       108
       +
       	return rf

     

       109
       109
       +
       }

     

       110
       110
       +
       

     

       111
       111
       +
       type MergeError struct {

     

       112
       112
       +
       	msg             string

     

       113
       113
       +
       	mismatchingLine int64

     

       114
       114
       +
       }

     

       115
       115
       +
       

     

       116
       116
       +
       func (m MergeError) Error() string {

     

       117
       117
       +
       	return fmt.Sprintf("%s: %v", m.msg, m.mismatchingLine)

     

       118
       118
       +
       }

     

       119
       119
       +
       

     

       120
       120
       +
       // best effort merging of two reconstructed files

     

       121
       121
       +
       func (this *Image) Merge(other *Image) (*Image, error) {

     

       122
       122
       +
       	mergedFile := Image{}

     

       123
       123
       +
       

     

       124
       124
       +
       	var i, j int64

     

       125
       125
       +
       

     

       126
       126
       +
       	for int(i) < len(this.Data) || int(j) < len(other.Data) {

     

       127
       127
       +
       		if int(i) >= len(this.Data) {

     

       128
       128
       +
       			// first file is done; the rest of the lines from file 2 can go in

     

       129
       129
       +
       			mergedFile.AddLine(other.Data[j])

     

       130
       130
       +
       			j++

     

       131
       131
       +
       			continue

     

       132
       132
       +
       		}

     

       133
       133
       +
       

     

       134
       134
       +
       		if int(j) >= len(other.Data) {

     

       135
       135
       +
       			// first file is done; the rest of the lines from file 2 can go in

     

       136
       136
       +
       			mergedFile.AddLine(this.Data[i])

     

       137
       137
       +
       			i++

     

       138
       138
       +
       			continue

     

       139
       139
       +
       		}

     

       140
       140
       +
       

     

       141
       141
       +
       		line1 := this.Data[i]

     

       142
       142
       +
       		line2 := other.Data[j]

     

       143
       143
       +
       

     

       144
       144
       +
       		if line1.LineNumber == line2.LineNumber {

     

       145
       145
       +
       			if line1.Content != line2.Content {

     

       146
       146
       +
       				return nil, MergeError{

     

       147
       147
       +
       					msg:             "mismatching lines, this patch might have undergone rebase",

     

       148
       148
       +
       					mismatchingLine: line1.LineNumber,

     

       149
       149
       +
       				}

     

       150
       150
       +
       			} else {

     

       151
       151
       +
       				mergedFile.AddLine(line1)

     

       152
       152
       +
       			}

     

       153
       153
       +
       			i++

     

       154
       154
       +
       			j++

     

       155
       155
       +
       		} else if line1.LineNumber < line2.LineNumber {

     

       156
       156
       +
       			mergedFile.AddLine(line1)

     

       157
       157
       +
       			i++

     

       158
       158
       +
       		} else {

     

       159
       159
       +
       			mergedFile.AddLine(line2)

     

       160
       160
       +
       			j++

     

       161
       161
       +
       		}

     

       162
       162
       +
       	}

     

       163
       163
       +
       

     

       164
       164
       +
       	return &mergedFile, nil

     

       165
       165
       +
       }

     

       166
       166
       +
       

     

       167
       167
       +
       func (r *Image) Apply(patch *gitdiff.File) (string, error) {

     

       168
       168
       +
       	original := r.String()

     

       169
       169
       +
       	var buffer bytes.Buffer

     

       170
       170
       +
       	reader := strings.NewReader(original)

     

       171
       171
       +
       

     

       172
       172
       +
       	err := gitdiff.Apply(&buffer, reader, patch)

     

       173
       173
       +
       	if err != nil {

     

       174
       174
       +
       		return "", err

     

       175
       175
       +
       	}

     

       176
       176
       +
       

     

       177
       177
       +
       	return buffer.String(), nil

     

       178
       178
       +
       }

+236

patchutil/interdiff.go

···

       1
       1
       +
       package patchutil

     

       2
       2
       +
       

     

       3
       3
       +
       import (

     

       4
       4
       +
       	"fmt"

     

       5
       5
       +
       	"strings"

     

       6
       6
       +
       

     

       7
       7
       +
       	"github.com/bluekeyes/go-gitdiff/gitdiff"

     

       8
       8
       +
       )

     

       9
       9
       +
       

     

       10
       10
       +
       type InterdiffResult struct {

     

       11
       11
       +
       	Files []*InterdiffFile

     

       12
       12
       +
       }

     

       13
       13
       +
       

     

       14
       14
       +
       func (i *InterdiffResult) String() string {

     

       15
       15
       +
       	var b strings.Builder

     

       16
       16
       +
       	for _, f := range i.Files {

     

       17
       17
       +
       		b.WriteString(f.String())

     

       18
       18
       +
       		b.WriteString("\n")

     

       19
       19
       +
       	}

     

       20
       20
       +
       

     

       21
       21
       +
       	return b.String()

     

       22
       22
       +
       }

     

       23
       23
       +
       

     

       24
       24
       +
       type InterdiffFile struct {

     

       25
       25
       +
       	*gitdiff.File

     

       26
       26
       +
       	Name   string

     

       27
       27
       +
       	Status InterdiffFileStatus

     

       28
       28
       +
       }

     

       29
       29
       +
       

     

       30
       30
       +
       func (s *InterdiffFile) String() string {

     

       31
       31
       +
       	var b strings.Builder

     

       32
       32
       +
       	b.WriteString(s.Status.String())

     

       33
       33
       +
       	b.WriteString(" ")

     

       34
       34
       +
       

     

       35
       35
       +
       	if s.File != nil {

     

       36
       36
       +
       		b.WriteString(bestName(s.File))

     

       37
       37
       +
       		b.WriteString("\n")

     

       38
       38
       +
       		b.WriteString(s.File.String())

     

       39
       39
       +
       	}

     

       40
       40
       +
       

     

       41
       41
       +
       	return b.String()

     

       42
       42
       +
       }

     

       43
       43
       +
       

     

       44
       44
       +
       type InterdiffFileStatus struct {

     

       45
       45
       +
       	StatusKind StatusKind

     

       46
       46
       +
       	Error      error

     

       47
       47
       +
       }

     

       48
       48
       +
       

     

       49
       49
       +
       func (s *InterdiffFileStatus) String() string {

     

       50
       50
       +
       	kind := s.StatusKind.String()

     

       51
       51
       +
       	if s.Error != nil {

     

       52
       52
       +
       		return fmt.Sprintf("%s [%s]", kind, s.Error.Error())

     

       53
       53
       +
       	} else {

     

       54
       54
       +
       		return kind

     

       55
       55
       +
       	}

     

       56
       56
       +
       }

     

       57
       57
       +
       

     

       58
       58
       +
       func (s *InterdiffFileStatus) IsOk() bool {

     

       59
       59
       +
       	return s.StatusKind == StatusOk

     

       60
       60
       +
       }

     

       61
       61
       +
       

     

       62
       62
       +
       func (s *InterdiffFileStatus) IsUnchanged() bool {

     

       63
       63
       +
       	return s.StatusKind == StatusUnchanged

     

       64
       64
       +
       }

     

       65
       65
       +
       

     

       66
       66
       +
       func (s *InterdiffFileStatus) IsOnlyInOne() bool {

     

       67
       67
       +
       	return s.StatusKind == StatusOnlyInOne

     

       68
       68
       +
       }

     

       69
       69
       +
       

     

       70
       70
       +
       func (s *InterdiffFileStatus) IsOnlyInTwo() bool {

     

       71
       71
       +
       	return s.StatusKind == StatusOnlyInTwo

     

       72
       72
       +
       }

     

       73
       73
       +
       

     

       74
       74
       +
       func (s *InterdiffFileStatus) IsRebased() bool {

     

       75
       75
       +
       	return s.StatusKind == StatusRebased

     

       76
       76
       +
       }

     

       77
       77
       +
       

     

       78
       78
       +
       func (s *InterdiffFileStatus) IsError() bool {

     

       79
       79
       +
       	return s.StatusKind == StatusError

     

       80
       80
       +
       }

     

       81
       81
       +
       

     

       82
       82
       +
       type StatusKind int

     

       83
       83
       +
       

     

       84
       84
       +
       func (k StatusKind) String() string {

     

       85
       85
       +
       	switch k {

     

       86
       86
       +
       	case StatusOnlyInOne:

     

       87
       87
       +
       		return "only in one"

     

       88
       88
       +
       	case StatusOnlyInTwo:

     

       89
       89
       +
       		return "only in two"

     

       90
       90
       +
       	case StatusUnchanged:

     

       91
       91
       +
       		return "unchanged"

     

       92
       92
       +
       	case StatusRebased:

     

       93
       93
       +
       		return "rebased"

     

       94
       94
       +
       	case StatusError:

     

       95
       95
       +
       		return "error"

     

       96
       96
       +
       	default:

     

       97
       97
       +
       		return "changed"

     

       98
       98
       +
       	}

     

       99
       99
       +
       }

     

       100
       100
       +
       

     

       101
       101
       +
       const (

     

       102
       102
       +
       	StatusOk StatusKind = iota

     

       103
       103
       +
       	StatusOnlyInOne

     

       104
       104
       +
       	StatusOnlyInTwo

     

       105
       105
       +
       	StatusUnchanged

     

       106
       106
       +
       	StatusRebased

     

       107
       107
       +
       	StatusError

     

       108
       108
       +
       )

     

       109
       109
       +
       

     

       110
       110
       +
       func interdiffFiles(f1, f2 *gitdiff.File) *InterdiffFile {

     

       111
       111
       +
       	re1 := CreatePreImage(f1)

     

       112
       112
       +
       	re2 := CreatePreImage(f2)

     

       113
       113
       +
       

     

       114
       114
       +
       	interdiffFile := InterdiffFile{

     

       115
       115
       +
       		Name: bestName(f1),

     

       116
       116
       +
       	}

     

       117
       117
       +
       

     

       118
       118
       +
       	merged, err := re1.Merge(&re2)

     

       119
       119
       +
       	if err != nil {

     

       120
       120
       +
       		interdiffFile.Status = InterdiffFileStatus{

     

       121
       121
       +
       			StatusKind: StatusRebased,

     

       122
       122
       +
       			Error:      err,

     

       123
       123
       +
       		}

     

       124
       124
       +
       		return &interdiffFile

     

       125
       125
       +
       	}

     

       126
       126
       +
       

     

       127
       127
       +
       	rev1, err := merged.Apply(f1)

     

       128
       128
       +
       	if err != nil {

     

       129
       129
       +
       		interdiffFile.Status = InterdiffFileStatus{

     

       130
       130
       +
       			StatusKind: StatusError,

     

       131
       131
       +
       			Error:      err,

     

       132
       132
       +
       		}

     

       133
       133
       +
       		return &interdiffFile

     

       134
       134
       +
       	}

     

       135
       135
       +
       

     

       136
       136
       +
       	rev2, err := merged.Apply(f2)

     

       137
       137
       +
       	if err != nil {

     

       138
       138
       +
       		interdiffFile.Status = InterdiffFileStatus{

     

       139
       139
       +
       			StatusKind: StatusError,

     

       140
       140
       +
       			Error:      err,

     

       141
       141
       +
       		}

     

       142
       142
       +
       		return &interdiffFile

     

       143
       143
       +
       	}

     

       144
       144
       +
       

     

       145
       145
       +
       	diff, err := Unified(rev1, bestName(f1), rev2, bestName(f2))

     

       146
       146
       +
       	if err != nil {

     

       147
       147
       +
       		interdiffFile.Status = InterdiffFileStatus{

     

       148
       148
       +
       			StatusKind: StatusError,

     

       149
       149
       +
       			Error:      err,

     

       150
       150
       +
       		}

     

       151
       151
       +
       		return &interdiffFile

     

       152
       152
       +
       	}

     

       153
       153
       +
       

     

       154
       154
       +
       	parsed, _, err := gitdiff.Parse(strings.NewReader(diff))

     

       155
       155
       +
       	if err != nil {

     

       156
       156
       +
       		interdiffFile.Status = InterdiffFileStatus{

     

       157
       157
       +
       			StatusKind: StatusError,

     

       158
       158
       +
       			Error:      err,

     

       159
       159
       +
       		}

     

       160
       160
       +
       		return &interdiffFile

     

       161
       161
       +
       	}

     

       162
       162
       +
       

     

       163
       163
       +
       	if len(parsed) != 1 {

     

       164
       164
       +
       		// files are identical?

     

       165
       165
       +
       		interdiffFile.Status = InterdiffFileStatus{

     

       166
       166
       +
       			StatusKind: StatusUnchanged,

     

       167
       167
       +
       		}

     

       168
       168
       +
       		return &interdiffFile

     

       169
       169
       +
       	}

     

       170
       170
       +
       

     

       171
       171
       +
       	if interdiffFile.Status.StatusKind == StatusOk {

     

       172
       172
       +
       		interdiffFile.File = parsed[0]

     

       173
       173
       +
       	}

     

       174
       174
       +
       

     

       175
       175
       +
       	return &interdiffFile

     

       176
       176
       +
       }

     

       177
       177
       +
       

     

       178
       178
       +
       func Interdiff(patch1, patch2 []*gitdiff.File) *InterdiffResult {

     

       179
       179
       +
       	fileToIdx1 := make(map[string]int)

     

       180
       180
       +
       	fileToIdx2 := make(map[string]int)

     

       181
       181
       +
       	visited := make(map[string]struct{})

     

       182
       182
       +
       	var result InterdiffResult

     

       183
       183
       +
       

     

       184
       184
       +
       	for idx, f := range patch1 {

     

       185
       185
       +
       		fileToIdx1[bestName(f)] = idx

     

       186
       186
       +
       	}

     

       187
       187
       +
       

     

       188
       188
       +
       	for idx, f := range patch2 {

     

       189
       189
       +
       		fileToIdx2[bestName(f)] = idx

     

       190
       190
       +
       	}

     

       191
       191
       +
       

     

       192
       192
       +
       	for _, f1 := range patch1 {

     

       193
       193
       +
       		var interdiffFile *InterdiffFile

     

       194
       194
       +
       

     

       195
       195
       +
       		fileName := bestName(f1)

     

       196
       196
       +
       		if idx, ok := fileToIdx2[fileName]; ok {

     

       197
       197
       +
       			f2 := patch2[idx]

     

       198
       198
       +
       

     

       199
       199
       +
       			// we have f1 and f2, calculate interdiff

     

       200
       200
       +
       			interdiffFile = interdiffFiles(f1, f2)

     

       201
       201
       +
       		} else {

     

       202
       202
       +
       			// only in patch 1, this change would have to be "inverted" to dissapear

     

       203
       203
       +
       			// from patch 2, so we reverseDiff(f1)

     

       204
       204
       +
       			reverseDiff(f1)

     

       205
       205
       +
       

     

       206
       206
       +
       			interdiffFile = &InterdiffFile{

     

       207
       207
       +
       				File: f1,

     

       208
       208
       +
       				Name: fileName,

     

       209
       209
       +
       				Status: InterdiffFileStatus{

     

       210
       210
       +
       					StatusKind: StatusOnlyInOne,

     

       211
       211
       +
       				},

     

       212
       212
       +
       			}

     

       213
       213
       +
       		}

     

       214
       214
       +
       

     

       215
       215
       +
       		result.Files = append(result.Files, interdiffFile)

     

       216
       216
       +
       		visited[fileName] = struct{}{}

     

       217
       217
       +
       	}

     

       218
       218
       +
       

     

       219
       219
       +
       	// for all files in patch2 that remain unvisited; we can just add them into the output

     

       220
       220
       +
       	for _, f2 := range patch2 {

     

       221
       221
       +
       		fileName := bestName(f2)

     

       222
       222
       +
       		if _, ok := visited[fileName]; ok {

     

       223
       223
       +
       			continue

     

       224
       224
       +
       		}

     

       225
       225
       +
       

     

       226
       226
       +
       		result.Files = append(result.Files, &InterdiffFile{

     

       227
       227
       +
       			File: f2,

     

       228
       228
       +
       			Name: fileName,

     

       229
       229
       +
       			Status: InterdiffFileStatus{

     

       230
       230
       +
       				StatusKind: StatusOnlyInTwo,

     

       231
       231
       +
       			},

     

       232
       232
       +
       		})

     

       233
       233
       +
       	}

     

       234
       234
       +
       

     

       235
       235
       +
       	return &result

     

       236
       236
       +
       }

+69

patchutil/patchutil.go

···

       2
       2
        
       

     

       3
       3
        
       import (

     

       4
       4
        
       	"fmt"

     

       5
       5
       +
       	"os"

     

       6
       6
       +
       	"os/exec"

     

       5
       7
        
       	"regexp"

     

       6
       8
        
       	"strings"

     

       7
       9
        
       

     
···

       125
       127
        
       	}

     

       126
       128
        
       	return patches

     

       127
       129
        
       }

     

       130
       130
       +
       

     

       131
       131
       +
       func bestName(file *gitdiff.File) string {

     

       132
       132
       +
       	if file.IsDelete {

     

       133
       133
       +
       		return file.OldName

     

       134
       134
       +
       	} else {

     

       135
       135
       +
       		return file.NewName

     

       136
       136
       +
       	}

     

       137
       137
       +
       }

     

       138
       138
       +
       

     

       139
       139
       +
       // in-place reverse of a diff

     

       140
       140
       +
       func reverseDiff(file *gitdiff.File) {

     

       141
       141
       +
       	file.OldName, file.NewName = file.NewName, file.OldName

     

       142
       142
       +
       	file.OldMode, file.NewMode = file.NewMode, file.OldMode

     

       143
       143
       +
       	file.BinaryFragment, file.ReverseBinaryFragment = file.ReverseBinaryFragment, file.BinaryFragment

     

       144
       144
       +
       

     

       145
       145
       +
       	for _, fragment := range file.TextFragments {

     

       146
       146
       +
       		// swap postions

     

       147
       147
       +
       		fragment.OldPosition, fragment.NewPosition = fragment.NewPosition, fragment.OldPosition

     

       148
       148
       +
       		fragment.OldLines, fragment.NewLines = fragment.NewLines, fragment.OldLines

     

       149
       149
       +
       		fragment.LinesAdded, fragment.LinesDeleted = fragment.LinesDeleted, fragment.LinesAdded

     

       150
       150
       +
       

     

       151
       151
       +
       		for i := range fragment.Lines {

     

       152
       152
       +
       			switch fragment.Lines[i].Op {

     

       153
       153
       +
       			case gitdiff.OpAdd:

     

       154
       154
       +
       				fragment.Lines[i].Op = gitdiff.OpDelete

     

       155
       155
       +
       			case gitdiff.OpDelete:

     

       156
       156
       +
       				fragment.Lines[i].Op = gitdiff.OpAdd

     

       157
       157
       +
       			default:

     

       158
       158
       +
       				// do nothing

     

       159
       159
       +
       			}

     

       160
       160
       +
       		}

     

       161
       161
       +
       	}

     

       162
       162
       +
       }

     

       163
       163
       +
       

     

       164
       164
       +
       func Unified(oldText, oldFile, newText, newFile string) (string, error) {

     

       165
       165
       +
       	oldTemp, err := os.CreateTemp("", "old_*")

     

       166
       166
       +
       	if err != nil {

     

       167
       167
       +
       		return "", fmt.Errorf("failed to create temp file for oldText: %w", err)

     

       168
       168
       +
       	}

     

       169
       169
       +
       	defer os.Remove(oldTemp.Name())

     

       170
       170
       +
       	if _, err := oldTemp.WriteString(oldText); err != nil {

     

       171
       171
       +
       		return "", fmt.Errorf("failed to write to old temp file: %w", err)

     

       172
       172
       +
       	}

     

       173
       173
       +
       	oldTemp.Close()

     

       174
       174
       +
       

     

       175
       175
       +
       	newTemp, err := os.CreateTemp("", "new_*")

     

       176
       176
       +
       	if err != nil {

     

       177
       177
       +
       		return "", fmt.Errorf("failed to create temp file for newText: %w", err)

     

       178
       178
       +
       	}

     

       179
       179
       +
       	defer os.Remove(newTemp.Name())

     

       180
       180
       +
       	if _, err := newTemp.WriteString(newText); err != nil {

     

       181
       181
       +
       		return "", fmt.Errorf("failed to write to new temp file: %w", err)

     

       182
       182
       +
       	}

     

       183
       183
       +
       	newTemp.Close()

     

       184
       184
       +
       

     

       185
       185
       +
       	cmd := exec.Command("diff", "-U", "9999", "--label", oldFile, "--label", newFile, oldTemp.Name(), newTemp.Name())

     

       186
       186
       +
       	output, err := cmd.CombinedOutput()

     

       187
       187
       +
       

     

       188
       188
       +
       	if exitErr, ok := err.(*exec.ExitError); ok && exitErr.ExitCode() == 1 {

     

       189
       189
       +
       		return string(output), nil

     

       190
       190
       +
       	}

     

       191
       191
       +
       	if err != nil {

     

       192
       192
       +
       		return "", fmt.Errorf("diff command failed: %w", err)

     

       193
       193
       +
       	}

     

       194
       194
       +
       

     

       195
       195
       +
       	return string(output), nil

     

       196
       196
       +
       }