Merge branch 'jc/linkgit-fix' into maint
[git] / git-parse-remote.sh
1 # This is a shell library to calculate the remote repository and
2 # upstream branch that should be pulled by "git pull" from the current
3 # branch.
4
5 # git-ls-remote could be called from outside a git managed repository;
6 # this would fail in that case and would issue an error message.
7 GIT_DIR=$(git rev-parse -q --git-dir) || :;
8
9 get_default_remote () {
10         curr_branch=$(git symbolic-ref -q HEAD)
11         curr_branch="${curr_branch#refs/heads/}"
12         origin=$(git config --get "branch.$curr_branch.remote")
13         echo ${origin:-origin}
14 }
15
16 get_remote_merge_branch () {
17         case "$#" in
18         0|1)
19             origin="$1"
20             default=$(get_default_remote)
21             test -z "$origin" && origin=$default
22             curr_branch=$(git symbolic-ref -q HEAD) &&
23             [ "$origin" = "$default" ] &&
24             echo $(git for-each-ref --format='%(upstream)' $curr_branch)
25             ;;
26         *)
27             repo=$1
28             shift
29             ref=$1
30             # FIXME: It should return the tracking branch
31             #        Currently only works with the default mapping
32             case "$ref" in
33             +*)
34                 ref=$(expr "z$ref" : 'z+\(.*\)')
35                 ;;
36             esac
37             expr "z$ref" : 'z.*:' >/dev/null || ref="${ref}:"
38             remote=$(expr "z$ref" : 'z\([^:]*\):')
39             case "$remote" in
40             '' | HEAD ) remote=HEAD ;;
41             heads/*) remote=${remote#heads/} ;;
42             refs/heads/*) remote=${remote#refs/heads/} ;;
43             refs/* | tags/* | remotes/* ) remote=
44             esac
45             [ -n "$remote" ] && case "$repo" in
46                 .)
47                     echo "refs/heads/$remote"
48                     ;;
49                 *)
50                     echo "refs/remotes/$repo/$remote"
51                     ;;
52             esac
53         esac
54 }
55
56 error_on_missing_default_upstream () {
57         cmd="$1"
58         op_type="$2"
59         op_prep="$3" # FIXME: op_prep is no longer used
60         example="$4"
61         branch_name=$(git symbolic-ref -q HEAD)
62         display_branch_name="${branch_name#refs/heads/}"
63         # If there's only one remote, use that in the suggestion
64         remote="$(gettext "<remote>")"
65         branch="$(gettext "<branch>")"
66         if test $(git remote | wc -l) = 1
67         then
68                 remote=$(git remote)
69         fi
70
71         if test -z "$branch_name"
72         then
73                 gettextln "You are not currently on a branch."
74         else
75                 gettextln "There is no tracking information for the current branch."
76         fi
77         case "$op_type" in
78         rebase)
79                 gettextln "Please specify which branch you want to rebase against."
80                 ;;
81         merge)
82                 gettextln "Please specify which branch you want to merge with."
83                 ;;
84         *)
85                 echo >&2 "BUG: unknown operation type: $op_type"
86                 exit 1
87                 ;;
88         esac
89         eval_gettextln "See git-\${cmd}(1) for details."
90         echo
91         echo "    $example"
92         echo
93         if test -n "$branch_name"
94         then
95                 gettextln "If you wish to set tracking information for this branch you can do so with:"
96                 echo
97                 echo "    git branch --set-upstream-to=$remote/$branch $display_branch_name"
98                 echo
99         fi
100         exit 1
101 }