fetch_version

   1 #!/bin/bash
   2
   3 usage() {
   4   echo "$0 file.json"
   5   echo "$0 [-n|--name name] [-b|--branch branch_or_rev] [-f|--file out_file] [-h|--help] (-u|--url) url"
   6   exit
   7 }
   8
   9 branch="master"
  10 while [[ $# -gt 0 ]]; do
  11   a="$1"
  12   shift
  13   case "$a" in
  14     *.json)
  15       file=$a
  16       content=$(cat $a)
  17       name="$(echo "$content" | jq -r ".meta.name")"
  18       url="$(echo "$content" | jq -r ".meta.url")"
  19       branch="$(echo "$content" | jq -r ".meta.branch")"
  20       ;;
  21     -n|--name)
  22       name=$1
  23       shift
  24       ;;
  25     -u|--url)
  26       url=$1
  27       shift
  28       ;;
  29     -b|--branch)
  30       branch=$1
  31       shift
  32       ;;
  33     -f|--file)
  34       file=$1
  35       shift
  36       ;;
  37     -h|--help)
  38       usage
  39       ;;
  40   esac
  41 done
  42 if [ -z "$url" ]; then
  43   usage
  44 fi
  45 if [ -z "$name" ]; then
  46   name=$(echo "$url" | cut -d"/" -f5)
  47 fi
  48 if [ -z "$file" ]; then
  49   file=$name.json
  50 fi
  51
  52 # function fetch_ledger () {
  53 #   pushd $HOME/projets/ledger >/dev/null 2>/dev/null
  54 #   git fetch origin
  55 #   tag="$(git describe origin/next | sed -e "s/^v//")"
  56 #   rev="$(git show-ref -s refs/remotes/origin/next)"
  57 #   sha="$(nix-prefetch-url --unpack file://<(git archive --format=tar.gz HEAD) 2>/dev/null)"
  58 #   popd >/dev/null 2>/dev/null
  59 # }
  60
  61 # awk_describe='BEGIN {
  62 #   FS = "[ /^]+"
  63 #   while ("git ls-remote " ARGV[1] "| sort -Vk2" | getline) {
  64 #     if (!sha)
  65 #       sha = substr($0, 1, 7)
  66 #     tag = $3
  67 #   }
  68 #   while ("curl -s " ARGV[1] "/releases/tag/" tag | getline)
  69 #     if ($3 ~ "commits")
  70 #       com = $2
  71 #   printf com ? "%s-%s-g%s\n" : "%s\n", tag, com, sha
  72 # }'
  73
  74 function get_ref () {
  75   case "$1" in
  76     refs/*)
  77       echo "$1"
  78       ;;
  79     *)
  80       echo "refs/heads/$1"
  81       ;;
  82   esac
  83 }
  84
  85 function get_name () {
  86   branch="$1"
  87   rev="$2"
  88   minirev=${rev:0:7}
  89
  90   case "$branch" in
  91     refs/tags/*)
  92       b="${branch#refs/tags/}"
  93       echo "${b//\//-}"
  94       ;;
  95     refs/heads/*)
  96       b=${branch#refs/heads/}
  97       echo "$minirev-${b//\//-}"
  98       ;;
  99     refs/*)
 100       b=${branch#refs/}
 101       echo "$minirev-${b//\//-}"
 102       ;;
 103     *)
 104       echo "$minirev-${branch//\//-}"
 105       ;;
 106   esac
 107 }
 108
 109 function fetch_github () {
 110   rev="$(git ls-remote --refs $url $(get_ref $branch) | head -n1 | cut -f1)"
 111   sha="$(nix-prefetch-url --unpack $url/archive/$rev.tar.gz)"
 112   # Différent du git-describe et github-spécifique
 113   #tag=$(echo "$awk_describe" | awk -f - $url | sed -e "s/^v//")
 114   tag=$(get_name $branch $rev)
 115 }
 116
 117 function fetch_other () {
 118   rev="$(git ls-remote --refs $url $(get_ref $branch) | head -n1 | cut -f1)"
 119   sha="$(nix-prefetch-git --url $url --rev $(get_ref $branch) | jq -r '.sha256')"
 120   tag=$(get_name $branch $rev)
 121 }
 122
 123 case "$url" in
 124   https://*github.com/*)
 125     fetch_github 2>/dev/null
 126     owner=$(echo "$url" | cut -d"/" -f4)
 127     repo=$(echo "$url" | cut -d"/" -f5)
 128
 129     F='{
 130       "tag": $tag,
 131       "meta": {
 132         "name": $name,
 133         "url": $url,
 134         "branch": $branch
 135       },
 136       "github": {
 137         "owner": $owner,
 138         "repo": $repo,
 139         "rev": $rev,
 140         "sha256": $sha,
 141         "fetchSubmodules": true
 142       }
 143     }'
 144     ;;
 145   *)
 146     fetch_other 2>/dev/null
 147     F='{
 148       "tag": $tag,
 149       "meta": {
 150         "name": $name,
 151         "url": $url,
 152         "branch": $branch
 153       },
 154       "git": {
 155         "url": $url,
 156         "rev": $rev,
 157         "sha256": $sha,
 158         "fetchSubmodules": true
 159       }
 160     }'
 161     ;;
 162 esac
 163
 164 jq -n \
 165   --arg name "$name" \
 166   --arg owner "$owner" \
 167   --arg repo "$repo" \
 168   --arg tag "$tag" \
 169   --arg rev "$rev" \
 170   --arg url "$url" \
 171   --arg branch "$branch" \
 172   --arg sha "$sha" \
 173   "$F" > $file