git-sh-setup.shon commit t0101: use a fixed timestamp when searching in the reflog (6c647af)
   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        : "${GIT_EDITOR:=$(git config core.editor)}"
 103        : "${GIT_EDITOR:=${VISUAL:-${EDITOR}}}"
 104        case "$GIT_EDITOR,$TERM" in
 105        ,dumb)
 106                echo >&2 "No editor specified in GIT_EDITOR, core.editor, VISUAL,"
 107                echo >&2 "or EDITOR. Tried to fall back to vi but terminal is dumb."
 108                echo >&2 "Please set one of these variables to an appropriate"
 109                echo >&2 "editor or run $0 with options that will not cause an"
 110                echo >&2 "editor to be invoked (e.g., -m or -F for git-commit)."
 111                exit 1
 112                ;;
 113        esac
 114        eval "${GIT_EDITOR:=vi}" '"$@"'
 115}
 116
 117sane_grep () {
 118        GREP_OPTIONS= LC_ALL=C grep "$@"
 119}
 120
 121sane_egrep () {
 122        GREP_OPTIONS= LC_ALL=C egrep "$@"
 123}
 124
 125is_bare_repository () {
 126        git rev-parse --is-bare-repository
 127}
 128
 129cd_to_toplevel () {
 130        cdup=$(git rev-parse --show-cdup)
 131        if test ! -z "$cdup"
 132        then
 133                # The "-P" option says to follow "physical" directory
 134                # structure instead of following symbolic links.  When cdup is
 135                # "../", this means following the ".." entry in the current
 136                # directory instead textually removing a symlink path element
 137                # from the PWD shell variable.  The "-P" behavior is more
 138                # consistent with the C-style chdir used by most of Git.
 139                cd -P "$cdup" || {
 140                        echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
 141                        exit 1
 142                }
 143        fi
 144}
 145
 146require_work_tree () {
 147        test $(git rev-parse --is-inside-work-tree) = true ||
 148        die "fatal: $0 cannot be used without a working tree."
 149}
 150
 151get_author_ident_from_commit () {
 152        pick_author_script='
 153        /^author /{
 154                s/'\''/'\''\\'\'\''/g
 155                h
 156                s/^author \([^<]*\) <[^>]*> .*$/\1/
 157                s/'\''/'\''\'\'\''/g
 158                s/.*/GIT_AUTHOR_NAME='\''&'\''/p
 159
 160                g
 161                s/^author [^<]* <\([^>]*\)> .*$/\1/
 162                s/'\''/'\''\'\'\''/g
 163                s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
 164
 165                g
 166                s/^author [^<]* <[^>]*> \(.*\)$/\1/
 167                s/'\''/'\''\'\'\''/g
 168                s/.*/GIT_AUTHOR_DATE='\''&'\''/p
 169
 170                q
 171        }
 172        '
 173        encoding=$(git config i18n.commitencoding || echo UTF-8)
 174        git show -s --pretty=raw --encoding="$encoding" "$1" -- |
 175        LANG=C LC_ALL=C sed -ne "$pick_author_script"
 176}
 177
 178# Make sure we are in a valid repository of a vintage we understand,
 179# if we require to be in a git repository.
 180if test -z "$NONGIT_OK"
 181then
 182        GIT_DIR=$(git rev-parse --git-dir) || exit
 183        if [ -z "$SUBDIRECTORY_OK" ]
 184        then
 185                test -z "$(git rev-parse --show-cdup)" || {
 186                        exit=$?
 187                        echo >&2 "You need to run this command from the toplevel of the working tree."
 188                        exit $exit
 189                }
 190        fi
 191        test -n "$GIT_DIR" && GIT_DIR=$(cd "$GIT_DIR" && pwd) || {
 192                echo >&2 "Unable to determine absolute path of git directory"
 193                exit 1
 194        }
 195        : ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
 196fi
 197
 198# Fix some commands on Windows
 199case $(uname -s) in
 200*MINGW*)
 201        # Windows has its own (incompatible) sort and find
 202        sort () {
 203                /usr/bin/sort "$@"
 204        }
 205        find () {
 206                /usr/bin/find "$@"
 207        }
 208        ;;
 209esac