mirror of
https://github.com/git/git
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077b725f0b
We used to use "cat-file commit $commit" to extract the original
author information from existing commit, but an earlier commit
5ac2715 (Consistent message encoding while reusing log from an
existing commit) changed it to use "git show -s $commit". If
you have a file in your work tree that can be interpreted as a
valid object name (e.g. "HEAD"), this conversion will not work.
Disambiguate by marking the end of revision parameter on the
comand line with an explicit "--" to fix this.
This breakage is most visible with rebase when a file called
"HEAD" exists in the worktree.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
150 lines
3.2 KiB
Bash
Executable file
150 lines
3.2 KiB
Bash
Executable file
#!/bin/sh
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#
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# This is included in commands that either have to be run from the toplevel
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# of the repository, or with GIT_DIR environment variable properly.
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# If the GIT_DIR does not look like the right correct git-repository,
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# it dies.
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# Having this variable in your environment would break scripts because
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# you would cause "cd" to be taken to unexpected places. If you
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# like CDPATH, define it for your interactive shell sessions without
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# exporting it.
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unset CDPATH
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die() {
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echo >&2 "$@"
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exit 1
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}
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if test -n "$OPTIONS_SPEC"; then
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usage() {
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"$0" -h
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exit 1
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}
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parseopt_extra=
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[ -n "$OPTIONS_KEEPDASHDASH" ] &&
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parseopt_extra="--keep-dashdash"
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eval "$(
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echo "$OPTIONS_SPEC" |
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git rev-parse --parseopt $parseopt_extra -- "$@" ||
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echo exit $?
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)"
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else
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usage() {
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die "Usage: $0 $USAGE"
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}
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if [ -z "$LONG_USAGE" ]
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then
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LONG_USAGE="Usage: $0 $USAGE"
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else
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LONG_USAGE="Usage: $0 $USAGE
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$LONG_USAGE"
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fi
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case "$1" in
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-h|--h|--he|--hel|--help)
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echo "$LONG_USAGE"
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exit
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esac
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fi
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set_reflog_action() {
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if [ -z "${GIT_REFLOG_ACTION:+set}" ]
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then
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GIT_REFLOG_ACTION="$*"
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export GIT_REFLOG_ACTION
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fi
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}
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git_editor() {
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: "${GIT_EDITOR:=$(git config core.editor)}"
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: "${GIT_EDITOR:=${VISUAL:-${EDITOR}}}"
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case "$GIT_EDITOR,$TERM" in
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,dumb)
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echo >&2 "No editor specified in GIT_EDITOR, core.editor, VISUAL,"
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echo >&2 "or EDITOR. Tried to fall back to vi but terminal is dumb."
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echo >&2 "Please set one of these variables to an appropriate"
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echo >&2 "editor or run $0 with options that will not cause an"
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echo >&2 "editor to be invoked (e.g., -m or -F for git-commit)."
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exit 1
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;;
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esac
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eval "${GIT_EDITOR:=vi}" '"$@"'
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}
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is_bare_repository () {
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git rev-parse --is-bare-repository
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}
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cd_to_toplevel () {
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cdup=$(git rev-parse --show-cdup)
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if test ! -z "$cdup"
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then
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cd "$cdup" || {
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echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
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exit 1
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}
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fi
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}
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require_work_tree () {
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test $(git rev-parse --is-inside-work-tree) = true ||
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die "fatal: $0 cannot be used without a working tree."
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}
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get_author_ident_from_commit () {
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pick_author_script='
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/^author /{
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s/'\''/'\''\\'\'\''/g
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h
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s/^author \([^<]*\) <[^>]*> .*$/\1/
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s/'\''/'\''\'\'\''/g
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s/.*/GIT_AUTHOR_NAME='\''&'\''/p
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g
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s/^author [^<]* <\([^>]*\)> .*$/\1/
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s/'\''/'\''\'\'\''/g
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s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
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g
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s/^author [^<]* <[^>]*> \(.*\)$/\1/
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s/'\''/'\''\'\'\''/g
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s/.*/GIT_AUTHOR_DATE='\''&'\''/p
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q
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}
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'
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encoding=$(git config i18n.commitencoding || echo UTF-8)
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git show -s --pretty=raw --encoding="$encoding" "$1" -- |
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LANG=C LC_ALL=C sed -ne "$pick_author_script"
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}
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# Make sure we are in a valid repository of a vintage we understand,
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# if we require to be in a git repository.
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if test -z "$NONGIT_OK"
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then
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if [ -z "$SUBDIRECTORY_OK" ]
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then
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: ${GIT_DIR=.git}
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test -z "$(git rev-parse --show-cdup)" || {
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exit=$?
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echo >&2 "You need to run this command from the toplevel of the working tree."
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exit $exit
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}
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else
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GIT_DIR=$(git rev-parse --git-dir) || {
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exit=$?
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echo >&2 "Failed to find a valid git directory."
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exit $exit
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}
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fi
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test -n "$GIT_DIR" && GIT_DIR=$(cd "$GIT_DIR" && pwd) || {
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echo >&2 "Unable to determine absolute path of git directory"
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exit 1
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}
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: ${GIT_OBJECT_DIRECTORY="$GIT_DIR/objects"}
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fi
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