Andrew's git / gitweb.git /
55fe8d56c9d5107df0843378ef137d64a48b2980
   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.
   7GIT_DIR=$(git rev-parse -q --git-dir) || :;
   8
   9get_default_remote () {
  10        curr_branch=$(git symbolic-ref -q HEAD)
  11        curr_branch="${curr_branch#refs/heads/}"
  12        origin=$(git config --get "branch.$curr_branch.remote")
  13        echo ${origin:-origin}
  14}
  15
  16get_remote_merge_branch () {
  17        case "$#" 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
  56error_on_missing_default_upstream () {
  57        cmd="$1"
  58        op_type="$2"
  59        op_prep="$3"
  60        example="$4"
  61        branch_name=$(git symbolic-ref -q HEAD)
  62        # If there's only one remote, use that in the suggestion
  63        remote="<remote>"
  64        if test $(git remote | wc -l) = 1
  65        then
  66                remote=$(git remote)
  67        fi
  68
  69        if test -z "$branch_name"
  70        then
  71                echo "You are not currently on a branch. Please specify which
  72branch you want to $op_type $op_prep. See git-${cmd}(1) for details.
  73
  74    $example
  75"
  76        else
  77                echo "There is no tracking information for the current branch.
  78Please specify which branch you want to $op_type $op_prep.
  79See git-${cmd}(1) for details
  80
  81    $example
  82
  83If you wish to set tracking information for this branch you can do so with:
  84
  85    git branch --set-upstream-to=$remote/<branch> ${branch_name#refs/heads/}
  86"
  87        fi
  88        exit 1
  89}