Andrew's git - gitweb.git/blob

   1#!/bin/sh
   2
   3USAGE='[-d <branch>] | [[-f] <branch> [start-point]]'
   4LONG_USAGE='If no arguments, show available branches and mark current branch with a star.
   5If one argument, create a new branch <branchname> based off of current HEAD.
   6If two arguments, create a new branch <branchname> based off of <start-point>.'
   7
   8SUBDIRECTORY_OK='Yes'
   9. git-sh-setup
  10
  11headref=$(git-symbolic-ref HEAD | sed -e 's|^refs/heads/||')
  12
  13delete_branch () {
  14    option="$1"
  15    shift
  16    for branch_name
  17    do
  18        case ",$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 both.
  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 $branch_name."
  47    done
  48    exit 0
  49}
  50
  51force=
  52while case "$#,$1" in 0,*) break ;; *,-*) ;; *) break ;; esac
  53do
  54        case "$1" in
  55        -d | -D)
  56                delete_branch "$@"
  57                exit
  58                ;;
  59        -f)
  60                force="$1"
  61                ;;
  62        --)
  63                shift
  64                break
  65                ;;
  66        -*)
  67                usage
  68                ;;
  69        esac
  70        shift
  71done
  72
  73case "$#" in
  740)
  75        git-rev-parse --symbolic --all |
  76        sed -ne 's|^refs/heads/||p' |
  77        sort |
  78        while read ref
  79        do
  80                if test "$headref" = "$ref"
  81                then
  82                        pfx='*'
  83                else
  84                        pfx=' '
  85                fi
  86                echo "$pfx $ref"
  87        done
  88        exit 0 ;;
  891)
  90        head=HEAD ;;
  912)
  92        head="$2^0" ;;
  93esac
  94branchname="$1"
  95
  96rev=$(git-rev-parse --verify "$head") || exit
  97
  98git-check-ref-format "heads/$branchname" ||
  99        die "we do not like '$branchname' as a branch name."
 100
 101if [ -e "$GIT_DIR/refs/heads/$branchname" ]
 102then
 103        if test '' = "$force"
 104        then
 105                die "$branchname already exists."
 106        elif test "$branchname" = "$headref"
 107        then
 108                die "cannot force-update the current branch."
 109        fi
 110fi
 111git update-ref "refs/heads/$branchname" $rev