Thread-safe xmalloc and xrealloc needs a recursive mutex
[git/dscho.git] / git-parse-remote.sh
blob5f47b18141a0758c3d0dae2cfe764495c92139c5
1 #!/bin/sh
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) || :;
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/$1"
23                 then
24                         echo branches
25                 else
26                         echo ''
27                 fi ;;
28         esac
31 get_remote_url () {
32         data_source=$(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 $1" ;;
54         esac
57 get_default_remote () {
58         curr_branch=$(git symbolic-ref -q HEAD | sed -e 's|^refs/heads/||')
59         origin=$(git config --get "branch.$curr_branch.remote")
60         echo ${origin:-origin}
63 get_remote_merge_branch () {
64         case "$#" in
65         0|1)
66             origin="$1"
67             default=$(get_default_remote)
68             test -z "$origin" && origin=$default
69             curr_branch=$(git symbolic-ref -q HEAD)
70             [ "$origin" = "$default" ] &&
71             echo $(git for-each-ref --format='%(upstream)' $curr_branch)
72             ;;
73         *)
74             repo=$1
75             shift
76             ref=$1
77             # FIXME: It should return the tracking branch
78             #        Currently only works with the default mapping
79             case "$ref" in
80             +*)
81                 ref=$(expr "z$ref" : 'z+\(.*\)')
82                 ;;
83             esac
84             expr "z$ref" : 'z.*:' >/dev/null || ref="${ref}:"
85             remote=$(expr "z$ref" : 'z\([^:]*\):')
86             case "$remote" in
87             '' | HEAD ) remote=HEAD ;;
88             heads/*) remote=${remote#heads/} ;;
89             refs/heads/*) remote=${remote#refs/heads/} ;;
90             refs/* | tags/* | remotes/* ) remote=
91             esac
93             [ -n "$remote" ] && echo "refs/remotes/$repo/$remote"
94         esac