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knotserver/git: refactor GitRepo.Branches to use `git for-each-ref` #311

merged

opened by

oppi.li 5 months ago targeting master from push-rqxyyurmpkps

Signed-off-by: oppiliappan me@oppi.li

options

unified split

Changed files

+112 -34

knotserver

git

branch.go

git.go

+112

knotserver/git/branch.go

···

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       package git

     

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       import (

     

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       	"fmt"

     

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       	"slices"

     

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       	"strconv"

     

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       	"strings"

     

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       	"time"

     

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       	"github.com/go-git/go-git/v5/plumbing"

     

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       	"github.com/go-git/go-git/v5/plumbing/object"

     

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

     

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       )

     

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       func (g *GitRepo) Branches() ([]types.Branch, error) {

     

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       	fields := []string{

     

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       		"refname:short",

     

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       		"objectname",

     

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       		"authorname",

     

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       		"authoremail",

     

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       		"authordate:unix",

     

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       		"committername",

     

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       		"committeremail",

     

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       		"committerdate:unix",

     

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       		"tree",

     

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       		"parent",

     

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       		"contents",

     

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       	}

     

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       	var outFormat strings.Builder

     

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       	outFormat.WriteString("--format=")

     

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       	for i, f := range fields {

     

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       		if i != 0 {

     

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       			outFormat.WriteString(fieldSeparator)

     

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       		}

     

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       		outFormat.WriteString(fmt.Sprintf("%%(%s)", f))

     

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       	}

     

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       	outFormat.WriteString("")

     

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       	outFormat.WriteString(recordSeparator)

     

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       	output, err := g.forEachRef(outFormat.String(), "refs/heads")

     

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       	if err != nil {

     

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       		return nil, fmt.Errorf("failed to get branches: %w", err)

     

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       	}

     

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       	records := strings.Split(strings.TrimSpace(string(output)), recordSeparator)

     

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       	if len(records) == 1 && records[0] == "" {

     

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       		return nil, nil

     

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       	}

     

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       	branches := make([]types.Branch, 0, len(records))

     

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       	// ignore errors here

     

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       	defaultBranch, _ := g.FindMainBranch()

     

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       	for _, line := range records {

     

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       		parts := strings.SplitN(strings.TrimSpace(line), fieldSeparator, len(fields))

     

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       		if len(parts) < 6 {

     

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       			continue

     

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       		}

     

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       		branchName := parts[0]

     

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       		commitHash := plumbing.NewHash(parts[1])

     

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       		authorName := parts[2]

     

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       		authorEmail := strings.TrimSuffix(strings.TrimPrefix(parts[3], "<"), ">")

     

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       		authorDate := parts[4]

     

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       		committerName := parts[5]

     

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       		committerEmail := strings.TrimSuffix(strings.TrimPrefix(parts[6], "<"), ">")

     

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       		committerDate := parts[7]

     

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       		treeHash := plumbing.NewHash(parts[8])

     

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       		parentHash := plumbing.NewHash(parts[9])

     

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       		message := parts[10]

     

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       		// parse creation time

     

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       		var authoredAt, committedAt time.Time

     

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       		if unix, err := strconv.ParseInt(authorDate, 10, 64); err == nil {

     

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       			authoredAt = time.Unix(unix, 0)

     

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       		}

     

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       		if unix, err := strconv.ParseInt(committerDate, 10, 64); err == nil {

     

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       			committedAt = time.Unix(unix, 0)

     

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       		}

     

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       		branch := types.Branch{

     

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       			IsDefault: branchName == defaultBranch,

     

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       			Reference: types.Reference{

     

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       				Name: branchName,

     

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       				Hash: commitHash.String(),

     

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       			},

     

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       			Commit: &object.Commit{

     

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       				Hash: commitHash,

     

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       				Author: object.Signature{

     

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       					Name:  authorName,

     

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       					Email: authorEmail,

     

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       					When:  authoredAt,

     

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       				},

     

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       				Committer: object.Signature{

     

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       					Name:  committerName,

     

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       					Email: committerEmail,

     

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       					When:  committedAt,

     

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       				},

     

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       				TreeHash:     treeHash,

     

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       				ParentHashes: []plumbing.Hash{parentHash},

     

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       				Message:      message,

     

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       			},

     

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       		}

     

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       		branches = append(branches, branch)

     

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       	}

     

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       	slices.Reverse(branches)

     

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       	return branches, nil

     

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       }

-34

knotserver/git/git.go

···

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       	"github.com/go-git/go-git/v5"

     

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       	"github.com/go-git/go-git/v5/plumbing"

     

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       	"github.com/go-git/go-git/v5/plumbing/object"

     

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

     

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       )

     

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       var (

     
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       	return io.ReadAll(reader)

     

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       }

     

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       func (g *GitRepo) Branches() ([]types.Branch, error) {

     

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       	bi, err := g.r.Branches()

     

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       	if err != nil {

     

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       		return nil, fmt.Errorf("branchs: %w", err)

     

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       	}

     

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       	branches := []types.Branch{}

     

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       	defaultBranch, err := g.FindMainBranch()

     

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       	_ = bi.ForEach(func(ref *plumbing.Reference) error {

     

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       		b := types.Branch{}

     

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       		b.Hash = ref.Hash().String()

     

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       		b.Name = ref.Name().Short()

     

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       		// resolve commit that this branch points to

     

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       		commit, _ := g.Commit(ref.Hash())

     

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       		if commit != nil {

     

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       			b.Commit = commit

     

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       		}

     

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       		if defaultBranch != "" && defaultBranch == b.Name {

     

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       			b.IsDefault = true

     

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       		}

     

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       		branches = append(branches, b)

     

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       		return nil

     

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       	})

     

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       	return branches, nil

     

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       }

     

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       func (g *GitRepo) Branch(name string) (*plumbing.Reference, error) {

     

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       	ref, err := g.r.Reference(plumbing.NewBranchReferenceName(name), false)

     

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       	if err != nil {