pyrox.dev
1#!/usr/bin/env bash
2
3# lists all available versions listed for a package in a site (http)
4
5pname="" # package name
6attr_path="" # package attribute path
7url="" # directory listing url
8file="" # file for writing debugging information
9
10while (( $# > 0 )); do
11 flag="$1"
12 shift 1
13 case "$flag" in
14 --pname=*)
15 pname="${flag#*=}"
16 ;;
17 --attr-path=*)
18 attr_path="${flag#*=}"
19 ;;
20 --url=*)
21 url="${flag#*=}"
22 ;;
23 --file=*)
24 file="${flag#*=}"
25 ;;
26 *)
27 echo "$0: unknown option ‘${flag}’"
28 exit 1
29 ;;
30 esac
31done
32
33if [[ -z "$pname" ]]; then
34 pname="$UPDATE_NIX_PNAME"
35fi
36
37if [[ -z "$attr_path" ]]; then
38 attr_path="$UPDATE_NIX_ATTR_PATH"
39fi
40
41# by default set url to the base dir of the first url in src.urls
42if [[ -z "$url" ]]; then
43 url="$(nix-instantiate $systemArg --eval -E \
44 "with import ./. {}; dirOf (dirOf (lib.head $attr_path.src.urls))" \
45 | tr -d '"')"
46fi
47
48# print a debugging message
49if [[ -n "$file" ]]; then
50 echo "# Listing versions for '$pname' at $url" >> $file
51fi
52
53# list all major-minor versions from url
54tags1=$(curl -sS "$url/")
55tags1=$(echo "$tags1" | sed -rne 's,^<a href="([0-9]+\.[0-9]+)/">.*,\1,p')
56
57# print available versions
58for tag in $tags1; do
59 tags2=$(curl -sS "$url/$tag/")
60 tags2=$(echo "$tags2" | sed -rne "s,^<a href=\"$pname-([0-9.]+)\\.[^0-9].*\">.*,\\1,p")
61 echo "$tags2"
62done