Andrew's git - gitweb.git/blob

   1#!/bin/sh
   2#
   3# This is included in commands that either have to be run from the toplevel
   4# of the repository, or with GIT_DIR environment variable properly.
   5# If the GIT_DIR does not look like the right correct git-repository,
   6# it dies.
   7
   8# Having this variable in your environment would break scripts because
   9# you would cause "cd" to be be taken to unexpected places.  If you
  10# like CDPATH, define it for your interactive shell sessions without
  11# exporting it.
  12unset CDPATH
  13
  14die() {
  15        echo >&2 "$@"
  16        exit 1
  17}
  18
  19usage() {
  20        die "Usage: $0 $USAGE"
  21}
  22
  23set_reflog_action() {
  24        if [ -z "${GIT_REFLOG_ACTION:+set}" ]
  25        then
  26                GIT_REFLOG_ACTION="$*"
  27                export GIT_REFLOG_ACTION
  28        fi
  29}
  30
  31git_editor() {
  32        GIT_EDITOR=${GIT_EDITOR:-$(git config core.editor || echo ${VISUAL:-${EDITOR}})}
  33        case "$GIT_EDITOR,$TERM" in
  34        ,dumb)
  35                echo >&2 "No editor specified in GIT_EDITOR, core.editor, VISUAL,"
  36                echo >&2 "or EDITOR. Tried to fall back to vi but terminal is dumb."
  37                echo >&2 "Please set one of these variables to an appropriate"
  38                echo >&2 "editor or run $0 with options that will not cause an"
  39                echo >&2 "editor to be invoked (e.g., -m or -F for git-commit)."
  40                exit 1
  41                ;;
  42        esac
  43        "${GIT_EDITOR:-vi}" "$1"
  44}
  45
  46is_bare_repository () {
  47        git rev-parse --is-bare-repository
  48}
  49
  50cd_to_toplevel () {
  51        cdup=$(git rev-parse --show-cdup)
  52        if test ! -z "$cdup"
  53        then
  54                cd "$cdup" || {
  55                        echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
  56                        exit 1
  57                }
  58        fi
  59}
  60
  61require_work_tree () {
  62        test $(git rev-parse --is-inside-work-tree) = true ||
  63        die "fatal: $0 cannot be used without a working tree."
  64}
  65
  66get_author_ident_from_commit () {
  67        pick_author_script='
  68        /^author /{
  69                s/'\''/'\''\\'\'\''/g
  70                h
  71                s/^author \([^<]*\) <[^>]*> .*$/\1/
  72                s/'\''/'\''\'\'\''/g
  73                s/.*/GIT_AUTHOR_NAME='\''&'\''/p
  74
  75                g
  76                s/^author [^<]* <\([^>]*\)> .*$/\1/
  77                s/'\''/'\''\'\'\''/g
  78                s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
  79
  80                g
  81                s/^author [^<]* <[^>]*> \(.*\)$/\1/
  82                s/'\''/'\''\'\'\''/g
  83                s/.*/GIT_AUTHOR_DATE='\''&'\''/p
  84
  85                q
  86        }
  87        '
  88        encoding=$(git config i18n.commitencoding || echo UTF-8)
  89        git show -s --pretty=raw --encoding="$encoding" "$1" |
  90        LANG=C LC_ALL=C sed -ne "$pick_author_script"
  91}
  92
  93if [ -z "$LONG_USAGE" ]
  94then
  95        LONG_USAGE="Usage: $0 $USAGE"
  96else
  97        LONG_USAGE="Usage: $0 $USAGE
  98
  99$LONG_USAGE"
 100fi
 101
 102case "$1" in
 103        -h|--h|--he|--hel|--help)
 104        echo "$LONG_USAGE"
 105        exit
 106esac
 107
 108# Make sure we are in a valid repository of a vintage we understand.
 109if [ -z "$SUBDIRECTORY_OK" ]
 110then
 111        : ${GIT_DIR=.git}
 112        GIT_DIR=$(GIT_DIR="$GIT_DIR" git rev-parse --git-dir) || {
 113                exit=$?
 114                echo >&2 "You need to run this command from the toplevel of the working tree."
 115                exit $exit
 116        }
 117else
 118        GIT_DIR=$(git rev-parse --git-dir) || exit
 119fi
 120: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}