git-parse-remote.sh

   1 #!/bin/sh
   2
   3 # git-ls-remote could be called from outside a git managed repository;
   4 # this would fail in that case and would issue an error message.
   5 GIT_DIR=$(git rev-parse -q --git-dir) || :;
   6
   7 get_data_source () {
   8         case "$1" in
   9         */*)
  10                 echo ''
  11                 ;;
  12         .)
  13                 echo self
  14                 ;;
  15         *)
  16                 if test "$(git config --get "remote.$1.url")"
  17                 then
  18                         echo config
  19                 elif test -f "$GIT_DIR/remotes/$1"
  20                 then
  21                         echo remotes
  22                 elif test -f "$GIT_DIR/branches/$1"
  23                 then
  24                         echo branches
  25                 else
  26                         echo ''
  27                 fi ;;
  28         esac
  29 }
  30
  31 get_remote_url () {
  32         data_source=$(get_data_source "$1")
  33         case "$data_source" in
  34         '')
  35                 echo "$1"
  36                 ;;
  37         self)
  38                 echo "$1"
  39                 ;;
  40         config)
  41                 git config --get "remote.$1.url"
  42                 ;;
  43         remotes)
  44                 sed -ne '/^URL: */{
  45                         s///p
  46                         q
  47                 }' "$GIT_DIR/remotes/$1"
  48                 ;;
  49         branches)
  50                 sed -e 's/#.*//' "$GIT_DIR/branches/$1"
  51                 ;;
  52         *)
  53                 die "internal error: get-remote-url $1" ;;
  54         esac
  55 }
  56
  57 get_default_remote () {
  58         curr_branch=$(git symbolic-ref -q HEAD)
  59         curr_branch="${curr_branch#refs/heads/}"
  60         origin=$(git config --get "branch.$curr_branch.remote")
  61         echo ${origin:-origin}
  62 }
  63
  64 get_remote_merge_branch () {
  65         case "$#" in
  66         0|1)
  67             origin="$1"
  68             default=$(get_default_remote)
  69             test -z "$origin" && origin=$default
  70             curr_branch=$(git symbolic-ref -q HEAD) &&
  71             [ "$origin" = "$default" ] &&
  72             echo $(git for-each-ref --format='%(upstream)' $curr_branch)
  73             ;;
  74         *)
  75             repo=$1
  76             shift
  77             ref=$1
  78             # FIXME: It should return the tracking branch
  79             #        Currently only works with the default mapping
  80             case "$ref" in
  81             +*)
  82                 ref=$(expr "z$ref" : 'z+\(.*\)')
  83                 ;;
  84             esac
  85             expr "z$ref" : 'z.*:' >/dev/null || ref="${ref}:"
  86             remote=$(expr "z$ref" : 'z\([^:]*\):')
  87             case "$remote" in
  88             '' | HEAD ) remote=HEAD ;;
  89             heads/*) remote=${remote#heads/} ;;
  90             refs/heads/*) remote=${remote#refs/heads/} ;;
  91             refs/* | tags/* | remotes/* ) remote=
  92             esac
  93             [ -n "$remote" ] && case "$repo" in
  94                 .)
  95                     echo "refs/heads/$remote"
  96                     ;;
  97                 *)
  98                     echo "refs/remotes/$repo/$remote"
  99                     ;;
 100             esac
 101         esac
 102 }