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 taken to unexpected places.  If you
  10# like CDPATH, define it for your interactive shell sessions without
  11# exporting it.
  12unset CDPATH
  13
  14git_broken_path_fix () {
  15        case ":$PATH:" in
  16        *:$1:*) : ok ;;
  17        *)
  18                PATH=$(
  19                        SANE_TOOL_PATH="$1"
  20                        IFS=: path= sep=
  21                        set x $PATH
  22                        shift
  23                        for elem
  24                        do
  25                                case "$SANE_TOOL_PATH:$elem" in
  26                                (?*:/bin | ?*:/usr/bin)
  27                                        path="$path$sep$SANE_TOOL_PATH"
  28                                        sep=:
  29                                        SANE_TOOL_PATH=
  30                                esac
  31                                path="$path$sep$elem"
  32                                sep=:
  33                        done
  34                        echo "$path"
  35                )
  36                ;;
  37        esac
  38}
  39
  40# @@BROKEN_PATH_FIX@@
  41
  42die() {
  43        echo >&2 "$@"
  44        exit 1
  45}
  46
  47GIT_QUIET=
  48
  49say () {
  50        if test -z "$GIT_QUIET"
  51        then
  52                printf '%s\n' "$*"
  53        fi
  54}
  55
  56if test -n "$OPTIONS_SPEC"; then
  57        usage() {
  58                "$0" -h
  59                exit 1
  60        }
  61
  62        parseopt_extra=
  63        [ -n "$OPTIONS_KEEPDASHDASH" ] &&
  64                parseopt_extra="--keep-dashdash"
  65
  66        eval "$(
  67                echo "$OPTIONS_SPEC" |
  68                        git rev-parse --parseopt $parseopt_extra -- "$@" ||
  69                echo exit $?
  70        )"
  71else
  72        dashless=$(basename "$0" | sed -e 's/-/ /')
  73        usage() {
  74                die "Usage: $dashless $USAGE"
  75        }
  76
  77        if [ -z "$LONG_USAGE" ]
  78        then
  79                LONG_USAGE="Usage: $dashless $USAGE"
  80        else
  81                LONG_USAGE="Usage: $dashless $USAGE
  82
  83$LONG_USAGE"
  84        fi
  85
  86        case "$1" in
  87                -h|--h|--he|--hel|--help)
  88                echo "$LONG_USAGE"
  89                exit
  90        esac
  91fi
  92
  93set_reflog_action() {
  94        if [ -z "${GIT_REFLOG_ACTION:+set}" ]
  95        then
  96                GIT_REFLOG_ACTION="$*"
  97                export GIT_REFLOG_ACTION
  98        fi
  99}
 100
 101git_editor() {
 102        if test -z "${GIT_EDITOR:+set}"
 103        then
 104                GIT_EDITOR="$(git var GIT_EDITOR)" || return $?
 105        fi
 106
 107        eval "$GIT_EDITOR" '"$@"'
 108}
 109
 110sane_grep () {
 111        GREP_OPTIONS= LC_ALL=C grep "$@"
 112}
 113
 114sane_egrep () {
 115        GREP_OPTIONS= LC_ALL=C egrep "$@"
 116}
 117
 118is_bare_repository () {
 119        git rev-parse --is-bare-repository
 120}
 121
 122cd_to_toplevel () {
 123        cdup=$(git rev-parse --show-toplevel) &&
 124        cd "$cdup" || {
 125                echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
 126                exit 1
 127        }
 128}
 129
 130require_work_tree () {
 131        test $(git rev-parse --is-inside-work-tree) = true ||
 132        die "fatal: $0 cannot be used without a working tree."
 133}
 134
 135get_author_ident_from_commit () {
 136        pick_author_script='
 137        /^author /{
 138                s/'\''/'\''\\'\'\''/g
 139                h
 140                s/^author \([^<]*\) <[^>]*> .*$/\1/
 141                s/'\''/'\''\'\'\''/g
 142                s/.*/GIT_AUTHOR_NAME='\''&'\''/p
 143
 144                g
 145                s/^author [^<]* <\([^>]*\)> .*$/\1/
 146                s/'\''/'\''\'\'\''/g
 147                s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
 148
 149                g
 150                s/^author [^<]* <[^>]*> \(.*\)$/\1/
 151                s/'\''/'\''\'\'\''/g
 152                s/.*/GIT_AUTHOR_DATE='\''&'\''/p
 153
 154                q
 155        }
 156        '
 157        encoding=$(git config i18n.commitencoding || echo UTF-8)
 158        git show -s --pretty=raw --encoding="$encoding" "$1" -- |
 159        LANG=C LC_ALL=C sed -ne "$pick_author_script"
 160}
 161
 162# Make sure we are in a valid repository of a vintage we understand,
 163# if we require to be in a git repository.
 164if test -z "$NONGIT_OK"
 165then
 166        GIT_DIR=$(git rev-parse --git-dir) || exit
 167        if [ -z "$SUBDIRECTORY_OK" ]
 168        then
 169                test -z "$(git rev-parse --show-cdup)" || {
 170                        exit=$?
 171                        echo >&2 "You need to run this command from the toplevel of the working tree."
 172                        exit $exit
 173                }
 174        fi
 175        test -n "$GIT_DIR" && GIT_DIR=$(cd "$GIT_DIR" && pwd) || {
 176                echo >&2 "Unable to determine absolute path of git directory"
 177                exit 1
 178        }
 179        : ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
 180fi
 181
 182# Fix some commands on Windows
 183case $(uname -s) in
 184*MINGW*)
 185        # Windows has its own (incompatible) sort and find
 186        sort () {
 187                /usr/bin/sort "$@"
 188        }
 189        find () {
 190                /usr/bin/find "$@"
 191        }
 192        ;;
 193esac