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="$*"
  27                export GIT_REFLOG_ACTION
  28        fi
  29}
  30
  31is_bare_repository () {
  32        git-config --bool --get core.bare ||
  33        case "$GIT_DIR" in
  34        .git | */.git) echo false ;;
  35        *) echo true ;;
  36        esac
  37}
  38
  39cd_to_toplevel () {
  40        cdup=$(git-rev-parse --show-cdup)
  41        if test ! -z "$cdup"
  42        then
  43                cd "$cdup" || {
  44                        echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
  45                        exit 1
  46                }
  47        fi
  48}
  49
  50require_work_tree () {
  51        test $(is_bare_repository) = false &&
  52        test $(git-rev-parse --is-inside-git-dir) = false ||
  53        die "fatal: $0 cannot be used without a working tree."
  54}
  55
  56get_author_ident_from_commit () {
  57        pick_author_script='
  58        /^author /{
  59                s/'\''/'\''\\'\'\''/g
  60                h
  61                s/^author \([^<]*\) <[^>]*> .*$/\1/
  62                s/'\''/'\''\'\'\''/g
  63                s/.*/GIT_AUTHOR_NAME='\''&'\''/p
  64
  65                g
  66                s/^author [^<]* <\([^>]*\)> .*$/\1/
  67                s/'\''/'\''\'\'\''/g
  68                s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
  69
  70                g
  71                s/^author [^<]* <[^>]*> \(.*\)$/\1/
  72                s/'\''/'\''\'\'\''/g
  73                s/.*/GIT_AUTHOR_DATE='\''&'\''/p
  74
  75                q
  76        }
  77        '
  78        encoding=$(git config i18n.commitencoding || echo UTF-8)
  79        git show -s --pretty=raw --encoding="$encoding" "$1" |
  80        LANG=C LC_ALL=C sed -ne "$pick_author_script"
  81}
  82
  83if [ -z "$LONG_USAGE" ]
  84then
  85        LONG_USAGE="Usage: $0 $USAGE"
  86else
  87        LONG_USAGE="Usage: $0 $USAGE
  88
  89$LONG_USAGE"
  90fi
  91
  92case "$1" in
  93        -h|--h|--he|--hel|--help)
  94        echo "$LONG_USAGE"
  95        exit
  96esac
  97
  98# Make sure we are in a valid repository of a vintage we understand.
  99if [ -z "$SUBDIRECTORY_OK" ]
 100then
 101        : ${GIT_DIR=.git}
 102        GIT_DIR=$(GIT_DIR="$GIT_DIR" git-rev-parse --git-dir) || {
 103                exit=$?
 104                echo >&2 "You need to run this command from the toplevel of the working tree."
 105                exit $exit
 106        }
 107else
 108        GIT_DIR=$(git-rev-parse --git-dir) || exit
 109fi
 110: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}