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="$*"
  27                export GIT_REFLOG_ACTION
  28        fi
  29}
  30
  31is_bare_repository () {
  32        git rev-parse --is-bare-repository
  33}
  34
  35cd_to_toplevel () {
  36        cdup=$(git rev-parse --show-cdup)
  37        if test ! -z "$cdup"
  38        then
  39                cd "$cdup" || {
  40                        echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
  41                        exit 1
  42                }
  43        fi
  44}
  45
  46require_work_tree () {
  47        test $(git rev-parse --is-inside-work-tree) = true &&
  48        test $(git rev-parse --is-inside-git-dir) = false ||
  49        die "fatal: $0 cannot be used without a working tree."
  50}
  51
  52get_author_ident_from_commit () {
  53        pick_author_script='
  54        /^author /{
  55                s/'\''/'\''\\'\'\''/g
  56                h
  57                s/^author \([^<]*\) <[^>]*> .*$/\1/
  58                s/'\''/'\''\'\'\''/g
  59                s/.*/GIT_AUTHOR_NAME='\''&'\''/p
  60
  61                g
  62                s/^author [^<]* <\([^>]*\)> .*$/\1/
  63                s/'\''/'\''\'\'\''/g
  64                s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
  65
  66                g
  67                s/^author [^<]* <[^>]*> \(.*\)$/\1/
  68                s/'\''/'\''\'\'\''/g
  69                s/.*/GIT_AUTHOR_DATE='\''&'\''/p
  70
  71                q
  72        }
  73        '
  74        encoding=$(git config i18n.commitencoding || echo UTF-8)
  75        git show -s --pretty=raw --encoding="$encoding" "$1" |
  76        LANG=C LC_ALL=C sed -ne "$pick_author_script"
  77}
  78
  79if [ -z "$LONG_USAGE" ]
  80then
  81        LONG_USAGE="Usage: $0 $USAGE"
  82else
  83        LONG_USAGE="Usage: $0 $USAGE
  84
  85$LONG_USAGE"
  86fi
  87
  88case "$1" in
  89        -h|--h|--he|--hel|--help)
  90        echo "$LONG_USAGE"
  91        exit
  92esac
  93
  94# Make sure we are in a valid repository of a vintage we understand.
  95if [ -z "$SUBDIRECTORY_OK" ]
  96then
  97        : ${GIT_DIR=.git}
  98        GIT_DIR=$(GIT_DIR="$GIT_DIR" git rev-parse --git-dir) || {
  99                exit=$?
 100                echo >&2 "You need to run this command from the toplevel of the working tree."
 101                exit $exit
 102        }
 103else
 104        GIT_DIR=$(git rev-parse --git-dir) || exit
 105fi
 106: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}