git-parse-remote-script

   1 #!/bin/sh
   2
   3 . git-sh-setup-script || die "Not a git archive"
   4
   5 get_data_source () {
   6         case "$1" in
   7         */*)
   8                 # Not so fast.  This could be the partial URL shorthand...
   9                 token=$(expr "$1" : '\([^/]*\)/')
  10                 remainder=$(expr "$1" : '[^/]*/\(.*\)')
  11                 if test -f "$GIT_DIR/branches/$token"
  12                 then
  13                         echo branches-partial
  14                 else
  15                         echo ''
  16                 fi
  17                 ;;
  18         *)
  19                 if 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 "$1" ;;
  36         remotes)
  37                 sed -ne '/^URL: */{
  38                         s///p
  39                         q
  40                 }' "$GIT_DIR/remotes/$1" ;;
  41         branches)
  42                 sed -e 's/#.*//' "$GIT_DIR/branches/$1" ;;
  43         branches-partial)
  44                 token=$(expr "$1" : '\([^/]*\)/')
  45                 remainder=$(expr "$1" : '[^/]*/\(.*\)')
  46                 url=$(sed -e 's/#.*//' "$GIT_DIR/branches/$token")
  47                 echo "$url/$remainder"
  48                 ;;
  49         *)
  50                 die "internal error: get-remote-url $1" ;;
  51         esac
  52 }
  53
  54 get_remote_default_refs_for_push () {
  55         data_source=$(get_data_source "$1")
  56         case "$data_source" in
  57         '' | branches | branches-partial)
  58                 ;; # no default push mapping, just send matching refs.
  59         remotes)
  60                 sed -ne '/^Push: */{
  61                         s///p
  62                 }' "$GIT_DIR/remotes/$1" ;;
  63         *)
  64                 die "internal error: get-remote-default-ref-for-push $1" ;;
  65         esac
  66 }
  67
  68 # Subroutine to canonicalize remote:local notation
  69 canon_refs_list_for_fetch () {
  70         for ref
  71         do
  72                 force=
  73                 case "$ref" in
  74                 +*)
  75                         ref=$(expr "$ref" : '\+\(.*\)')
  76                         force=+
  77                         ;;
  78                 esac
  79                 expr "$ref" : '.*:' >/dev/null || ref="${ref}:"
  80                 remote=$(expr "$ref" : '\([^:]*\):')
  81                 local=$(expr "$ref" : '[^:]*:\(.*\)')
  82                 case "$remote" in
  83                 '') remote=HEAD ;;
  84                 *) remote="refs/heads/$remote" ;;
  85                 esac
  86                 case "$local" in
  87                 '') local= ;;
  88                 *) local="refs/heads/$local" ;;
  89                 esac
  90                 echo "${force}${remote}:${local}"
  91         done
  92 }
  93
  94 # Returns list of src: (no store), or src:dst (store)
  95 get_remote_default_refs_for_fetch () {
  96         data_source=$(get_data_source "$1")
  97         case "$data_source" in
  98         '' | branches-partial)
  99                 echo "HEAD:" ;;
 100         branches)
 101                 remote_branch=$(sed -ne '/#/s/.*#//p' "$GIT_DIR/branches/$1")
 102                 case "$remote_branch" in '') remote_branch=master ;; esac
 103                 echo "refs/heads/${remote_branch}:refs/heads/$1"
 104                 ;;
 105         remotes)
 106                 canon_refs_list_for_fetch $(sed -ne '/^Pull: */{
 107                                                 s///p
 108                                         }' "$GIT_DIR/remotes/$1")
 109                 ;;
 110         *)
 111                 die "internal error: get-remote-default-ref-for-push $1" ;;
 112         esac
 113 }
 114
 115 get_remote_refs_for_push () {
 116         case "$#" in
 117         0) die "internal error: get-remote-refs-for-push." ;;
 118         1) get_remote_default_refs_for_push "$@" ;;
 119         *) shift; echo "$@" ;;
 120         esac
 121 }
 122
 123 get_remote_refs_for_fetch () {
 124         case "$#" in
 125         0)
 126             die "internal error: get-remote-refs-for-fetch." ;;
 127         1)
 128             get_remote_default_refs_for_fetch "$@" ;;
 129         *)
 130             shift
 131             tag_just_seen=
 132             for ref
 133             do
 134                 if test "$tag_just_seen"
 135                 then
 136                     echo "refs/tags/${ref}:refs/tags/${ref}"
 137                     tag_just_seen=
 138                     continue
 139                 else
 140                     case "$ref" in
 141                     tag)
 142                         tag_just_seen=yes
 143                         continue
 144                         ;;
 145                     esac
 146                 fi
 147                 canon_refs_list_for_fetch "$ref"
 148             done
 149             ;;
 150         esac
 151 }