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="$1"
  17    shift
  18    headref=$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD |
  19               sed -e 's|^refs/heads/||')
  20    for branch_name
  21    do
  22        case ",$headref," in
  23        ",$branch_name,")
  24            die "Cannot delete the branch you are on." ;;
  25        ,,)
  26            die "What branch are you on anyway?" ;;
  27        esac
  28        branch=$(cat "$GIT_DIR/refs/heads/$branch_name") &&
  29            branch=$(git-rev-parse --verify "$branch^0") ||
  30                die "Seriously, what branch are you talking about?"
  31        case "$option" in
  32        -D)
  33            ;;
  34        *)
  35            mbs=$(git-merge-base -a "$branch" HEAD | tr '\012' ' ')
  36            case " $mbs " in
  37            *' '$branch' '*)
  38                # the merge base of branch and HEAD contains branch --
  39                # which means that the HEAD contains everything in the HEAD.
  40                ;;
  41            *)
  42                echo >&2 "The branch '$branch_name' is not a strict subset of your current HEAD.
  43    If you are sure you want to delete it, run 'git branch -D $branch_name'."
  44                exit 1
  45                ;;
  46            esac
  47            ;;
  48        esac
  49        rm -f "$GIT_DIR/refs/heads/$branch_name"
  50        echo "Deleted branch $branch_name."
  51    done
  52    exit 0
  53}
  54
  55while case "$#,$1" in 0,*) break ;; *,-*) ;; *) break ;; esac
  56do
  57        case "$1" in
  58        -d | -D)
  59                delete_branch "$@"
  60                exit
  61                ;;
  62        --)
  63                shift
  64                break
  65                ;;
  66        -*)
  67                usage
  68                ;;
  69        esac
  70        shift
  71done
  72
  73case "$#" in
  740)
  75        headref=$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD |
  76                  sed -e 's|^refs/heads/||')
  77        git-rev-parse --symbolic --all |
  78        sed -ne 's|^refs/heads/||p' |
  79        sort |
  80        while read ref
  81        do
  82                if test "$headref" = "$ref"
  83                then
  84                        pfx='*'
  85                else
  86                        pfx=' '
  87                fi
  88                echo "$pfx $ref"
  89        done
  90        exit 0 ;;
  911)
  92        head=HEAD ;;
  932)
  94        head="$2^0" ;;
  95esac
  96branchname="$1"
  97
  98rev=$(git-rev-parse --verify "$head") || exit
  99
 100[ -e "$GIT_DIR/refs/heads/$branchname" ] &&
 101        die "$branchname already exists."
 102git-check-ref-format "heads/$branchname" ||
 103        die "we do not like '$branchname' as a branch name."
 104
 105git update-ref "refs/heads/$branchname" $rev
 106