Andrew's git - gitweb.git/blob

   1#!/bin/sh
   2
   3. git-sh-setup || die "Not a git archive"
   4
   5usage () {
   6    echo >&2 "usage: $(basename $0)"' [-d <branch>] | [<branch> [start-point]]
   7
   8If no arguments, show available branches and mark current branch with a star.
   9If one argument, create a new branch <branchname> based off of current HEAD.
  10If two arguments, create a new branch <branchname> based off of <start-point>.
  11'
  12    exit 1
  13}
  14
  15delete_branch () {
  16    option="$1" branch_name="$2"
  17    headref=$(readlink "$GIT_DIR/HEAD" | sed -e 's|^refs/heads/||')
  18    case ",$headref," in
  19    ",$branch_name,")
  20        die "Cannot delete the branch you are on." ;;
  21    ,,)
  22        die "What branch are you on anyway?" ;;
  23    esac
  24    branch=$(cat "$GIT_DIR/refs/heads/$branch_name") &&
  25        branch=$(git-rev-parse --verify "$branch^0") ||
  26            die "Seriously, what branch are you talking about?"
  27    case "$option" in
  28    -D)
  29        ;;
  30    *)
  31        mbs=$(git-merge-base -a "$branch" HEAD | tr '\012' ' ')
  32        case " $mbs " in
  33        *' '$branch' '*)
  34            # the merge base of branch and HEAD contains branch --
  35            # which means that the HEAD contains everything in the HEAD.
  36            ;;
  37        *)
  38            echo >&2 "The branch '$branch_name' is not a strict subset of your current HEAD.
  39If you are sure you want to delete it, run 'git branch -D $branch_name'."
  40            exit 1
  41            ;;
  42        esac
  43        ;;
  44    esac
  45    rm -f "$GIT_DIR/refs/heads/$branch_name"
  46    echo "Deleted branch $branch_name."
  47    exit 0
  48}
  49
  50while case "$#,$1" in 0,*) break ;; *,-*) ;; *) break ;; esac
  51do
  52        case "$1" in
  53        -d | -D)
  54                delete_branch "$1" "$2"
  55                exit
  56                ;;
  57        --)
  58                shift
  59                break
  60                ;;
  61        -*)
  62                usage
  63                ;;
  64        esac
  65        shift
  66done
  67
  68case "$#" in
  690)
  70        headref=$(readlink "$GIT_DIR/HEAD" | sed -e 's|^refs/heads/||')
  71        git-rev-parse --symbolic --all |
  72        sed -ne 's|^refs/heads/||p' |
  73        sort |
  74        while read ref
  75        do
  76                if test "$headref" = "$ref"
  77                then
  78                        pfx='*'
  79                else
  80                        pfx=' '
  81                fi
  82                echo "$pfx $ref"
  83        done
  84        exit 0 ;;
  851)
  86        head=HEAD ;;
  872)
  88        head="$2^0" ;;
  89esac
  90branchname="$1"
  91
  92rev=$(git-rev-parse --verify "$head") || exit
  93
  94[ -e "$GIT_DIR/refs/heads/$branchname" ] && die "$branchname already exists"
  95
  96echo $rev > "$GIT_DIR/refs/heads/$branchname"