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git-commit-vandalism/git-commit.sh
Steven Grimm d1cc130a5e Teach git-commit about commit message templates. 
These are useful in organizations that enforce particular formats
for commit messages, e.g., to specify bug IDs or test plans.
Use of the template is not enforced; it is simply used as the
initial content when the editor is invoked.

Signed-off-by: Steven Grimm <koreth@midwinter.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-24 20:46:54 -07:00

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#!/bin/sh
#
# Copyright (c) 2005 Linus Torvalds
# Copyright (c) 2006 Junio C Hamano
USAGE='[-a | --interactive] [-s] [-v] [--no-verify] [-m <message> | -F <logfile> | (-C|-c) <commit> | --amend] [-u] [-e] [--author <author>] [--template <file>] [[-i | -o] <path>...]'
SUBDIRECTORY_OK=Yes
. git-sh-setup
require_work_tree
git rev-parse --verify HEAD >/dev/null 2>&1 || initial_commit=t
case "$0" in
*status)
status_only=t
;;
*commit)
status_only=
;;
esac
refuse_partial () {
echo >&2 "$1"
echo >&2 "You might have meant to say 'git commit -i paths...', perhaps?"
exit 1
}
THIS_INDEX="$GIT_DIR/index"
NEXT_INDEX="$GIT_DIR/next-index$$"
rm -f "$NEXT_INDEX"
save_index () {
cp -p "$THIS_INDEX" "$NEXT_INDEX"
}
run_status () {
# If TMP_INDEX is defined, that means we are doing
# "--only" partial commit, and that index file is used
# to build the tree for the commit. Otherwise, if
# NEXT_INDEX exists, that is the index file used to
# make the commit. Otherwise we are using as-is commit
# so the regular index file is what we use to compare.
if test '' != "$TMP_INDEX"
then
GIT_INDEX_FILE="$TMP_INDEX"
export GIT_INDEX_FILE
elif test -f "$NEXT_INDEX"
then
GIT_INDEX_FILE="$NEXT_INDEX"
export GIT_INDEX_FILE
fi
case "$status_only" in
t) color= ;;
*) color=--nocolor ;;
esac
git runstatus ${color} \
${verbose:+--verbose} \
${amend:+--amend} \
${untracked_files:+--untracked}
}
trap '
test -z "$TMP_INDEX" || {
test -f "$TMP_INDEX" && rm -f "$TMP_INDEX"
}
rm -f "$NEXT_INDEX"
' 0
################################################################
# Command line argument parsing and sanity checking
all=
also=
interactive=
only=
logfile=
use_commit=
amend=
edit_flag=
no_edit=
log_given=
log_message=
verify=t
quiet=
verbose=
signoff=
force_author=
only_include_assumed=
untracked_files=
templatefile="`git config commit.template`"
while case "$#" in 0) break;; esac
do
case "$1" in
-F|--F|-f|--f|--fi|--fil|--file)
case "$#" in 1) usage ;; esac
shift
no_edit=t
log_given=t$log_given
logfile="$1"
shift
;;
-F*|-f*)
no_edit=t
log_given=t$log_given
logfile=`expr "z$1" : 'z-[Ff]\(.*\)'`
shift
;;
--F=*|--f=*|--fi=*|--fil=*|--file=*)
no_edit=t
log_given=t$log_given
logfile=`expr "z$1" : 'z-[^=]*=\(.*\)'`
shift
;;
-a|--a|--al|--all)
all=t
shift
;;
--au=*|--aut=*|--auth=*|--autho=*|--author=*)
force_author=`expr "z$1" : 'z-[^=]*=\(.*\)'`
shift
;;
--au|--aut|--auth|--autho|--author)
case "$#" in 1) usage ;; esac
shift
force_author="$1"
shift
;;
-e|--e|--ed|--edi|--edit)
edit_flag=t
shift
;;
-i|--i|--in|--inc|--incl|--inclu|--includ|--include)
also=t
shift
;;
--int|--inte|--inter|--intera|--interac|--interact|--interacti|\
--interactiv|--interactive)
interactive=t
shift
;;
-o|--o|--on|--onl|--only)
only=t
shift
;;
-m|--m|--me|--mes|--mess|--messa|--messag|--message)
case "$#" in 1) usage ;; esac
shift
log_given=m$log_given
if test "$log_message" = ''
then
log_message="$1"
else
log_message="$log_message
$1"
fi
no_edit=t
shift
;;
-m*)
log_given=m$log_given
if test "$log_message" = ''
then
log_message=`expr "z$1" : 'z-m\(.*\)'`
else
log_message="$log_message
`expr "z$1" : 'z-m\(.*\)'`"
fi
no_edit=t
shift
;;
--m=*|--me=*|--mes=*|--mess=*|--messa=*|--messag=*|--message=*)
log_given=m$log_given
if test "$log_message" = ''
then
log_message=`expr "z$1" : 'z-[^=]*=\(.*\)'`
else
log_message="$log_message
`expr "z$1" : 'zq-[^=]*=\(.*\)'`"
fi
no_edit=t
shift
;;
-n|--n|--no|--no-|--no-v|--no-ve|--no-ver|--no-veri|--no-verif|\
--no-verify)
verify=
shift
;;
--a|--am|--ame|--amen|--amend)
amend=t
log_given=t$log_given
use_commit=HEAD
shift
;;
-c)
case "$#" in 1) usage ;; esac
shift
log_given=t$log_given
use_commit="$1"
no_edit=
shift
;;
--ree=*|--reed=*|--reedi=*|--reedit=*|--reedit-=*|--reedit-m=*|\
--reedit-me=*|--reedit-mes=*|--reedit-mess=*|--reedit-messa=*|\
--reedit-messag=*|--reedit-message=*)
log_given=t$log_given
use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
no_edit=
shift
;;
--ree|--reed|--reedi|--reedit|--reedit-|--reedit-m|--reedit-me|\
--reedit-mes|--reedit-mess|--reedit-messa|--reedit-messag|\
--reedit-message)
case "$#" in 1) usage ;; esac
shift
log_given=t$log_given
use_commit="$1"
no_edit=
shift
;;
-C)
case "$#" in 1) usage ;; esac
shift
log_given=t$log_given
use_commit="$1"
no_edit=t
shift
;;
--reu=*|--reus=*|--reuse=*|--reuse-=*|--reuse-m=*|--reuse-me=*|\
--reuse-mes=*|--reuse-mess=*|--reuse-messa=*|--reuse-messag=*|\
--reuse-message=*)
log_given=t$log_given
use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
no_edit=t
shift
;;
--reu|--reus|--reuse|--reuse-|--reuse-m|--reuse-me|--reuse-mes|\
--reuse-mess|--reuse-messa|--reuse-messag|--reuse-message)
case "$#" in 1) usage ;; esac
shift
log_given=t$log_given
use_commit="$1"
no_edit=t
shift
;;
-s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
signoff=t
shift
;;
-t|--t|--te|--tem|--temp|--templ|--templa|--templat|--template)
case "$#" in 1) usage ;; esac
shift
templatefile="$1"
no_edit=
shift
;;
-q|--q|--qu|--qui|--quie|--quiet)
quiet=t
shift
;;
-v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
verbose=t
shift
;;
-u|--u|--un|--unt|--untr|--untra|--untrac|--untrack|--untracke|\
--untracked|--untracked-|--untracked-f|--untracked-fi|--untracked-fil|\
--untracked-file|--untracked-files)
untracked_files=t
shift
;;
--)
shift
break
;;
-*)
usage
;;
*)
break
;;
esac
done
case "$edit_flag" in t) no_edit= ;; esac
################################################################
# Sanity check options
case "$amend,$initial_commit" in
t,t)
die "You do not have anything to amend." ;;
t,)
if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
die "You are in the middle of a merge -- cannot amend."
fi ;;
esac
case "$log_given" in
tt*)
die "Only one of -c/-C/-F/--amend can be used." ;;
*tm*|*mt*)
die "Option -m cannot be combined with -c/-C/-F/--amend." ;;
esac
case "$#,$also,$only,$amend" in
*,t,t,*)
die "Only one of --include/--only can be used." ;;
0,t,,* | 0,,t,)
die "No paths with --include/--only does not make sense." ;;
0,,t,t)
only_include_assumed="# Clever... amending the last one with dirty index." ;;
0,,,*)
;;
*,,,*)
only_include_assumed="# Explicit paths specified without -i nor -o; assuming --only paths..."
also=
;;
esac
unset only
case "$all,$interactive,$also,$#" in
*t,*t,*)
die "Cannot use -a, --interactive or -i at the same time." ;;
t,,[1-9]*)
die "Paths with -a does not make sense." ;;
,t,[1-9]*)
die "Paths with --interactive does not make sense." ;;
,,t,0)
die "No paths with -i does not make sense." ;;
esac
if test ! -z "$templatefile" -a -z "$log_given"
then
if test ! -f "$templatefile"
then
die "Commit template file does not exist."
fi
fi
################################################################
# Prepare index to have a tree to be committed
case "$all,$also" in
t,)
if test ! -f "$THIS_INDEX"
then
die 'nothing to commit (use "git add file1 file2" to include for commit)'
fi
save_index &&
(
cd_to_toplevel &&
GIT_INDEX_FILE="$NEXT_INDEX" &&
export GIT_INDEX_FILE &&
git diff-files --name-only -z |
git update-index --remove -z --stdin
) || exit
;;
,t)
save_index &&
git ls-files --error-unmatch -- "$@" >/dev/null || exit
git diff-files --name-only -z -- "$@" |
(
cd_to_toplevel &&
GIT_INDEX_FILE="$NEXT_INDEX" &&
export GIT_INDEX_FILE &&
git update-index --remove -z --stdin
) || exit
;;
,)
if test "$interactive" = t; then
git add --interactive || exit
fi
case "$#" in
0)
;; # commit as-is
*)
if test -f "$GIT_DIR/MERGE_HEAD"
then
refuse_partial "Cannot do a partial commit during a merge."
fi
TMP_INDEX="$GIT_DIR/tmp-index$$"
commit_only=`git ls-files --error-unmatch -- "$@"` || exit
# Build a temporary index and update the real index
# the same way.
if test -z "$initial_commit"
then
GIT_INDEX_FILE="$THIS_INDEX" \
git read-tree --index-output="$TMP_INDEX" -i -m HEAD
else
rm -f "$TMP_INDEX"
fi || exit
printf '%s\n' "$commit_only" |
GIT_INDEX_FILE="$TMP_INDEX" \
git update-index --add --remove --stdin &&
save_index &&
printf '%s\n' "$commit_only" |
(
GIT_INDEX_FILE="$NEXT_INDEX"
export GIT_INDEX_FILE
git update-index --remove --stdin
) || exit
;;
esac
;;
esac
################################################################
# If we do as-is commit, the index file will be THIS_INDEX,
# otherwise NEXT_INDEX after we make this commit. We leave
# the index as is if we abort.
if test -f "$NEXT_INDEX"
then
USE_INDEX="$NEXT_INDEX"
else
USE_INDEX="$THIS_INDEX"
fi
case "$status_only" in
t)
# This will silently fail in a read-only repository, which is
# what we want.
GIT_INDEX_FILE="$USE_INDEX" git update-index -q --unmerged --refresh
run_status
exit $?
;;
'')
GIT_INDEX_FILE="$USE_INDEX" git update-index -q --refresh || exit
;;
esac
################################################################
# Grab commit message, write out tree and make commit.
if test t = "$verify" && test -x "$GIT_DIR"/hooks/pre-commit
then
if test "$TMP_INDEX"
then
GIT_INDEX_FILE="$TMP_INDEX" "$GIT_DIR"/hooks/pre-commit
else
GIT_INDEX_FILE="$USE_INDEX" "$GIT_DIR"/hooks/pre-commit
fi || exit
fi
if test "$log_message" != ''
then
printf '%s\n' "$log_message"
elif test "$logfile" != ""
then
if test "$logfile" = -
then
test -t 0 &&
echo >&2 "(reading log message from standard input)"
cat
else
cat <"$logfile"
fi
elif test "$use_commit" != ""
then
encoding=$(git config i18n.commitencoding || echo UTF-8)
git show -s --pretty=raw --encoding="$encoding" "$use_commit" |
sed -e '1,/^$/d' -e 's/^ //'
elif test -f "$GIT_DIR/MERGE_MSG"
then
cat "$GIT_DIR/MERGE_MSG"
elif test -f "$GIT_DIR/SQUASH_MSG"
then
cat "$GIT_DIR/SQUASH_MSG"
elif test "$templatefile" != ""
then
cat "$templatefile"
fi | git stripspace >"$GIT_DIR"/COMMIT_EDITMSG
case "$signoff" in
t)
sign=$(git-var GIT_COMMITTER_IDENT | sed -e '
s/>.*/>/
s/^/Signed-off-by: /
')
blank_before_signoff=
tail -n 1 "$GIT_DIR"/COMMIT_EDITMSG |
grep 'Signed-off-by:' >/dev/null || blank_before_signoff='
'
tail -n 1 "$GIT_DIR"/COMMIT_EDITMSG |
grep "$sign"$ >/dev/null ||
printf '%s%s\n' "$blank_before_signoff" "$sign" \
>>"$GIT_DIR"/COMMIT_EDITMSG
;;
esac
if test -f "$GIT_DIR/MERGE_HEAD" && test -z "$no_edit"; then
echo "#"
echo "# It looks like you may be committing a MERGE."
echo "# If this is not correct, please remove the file"
printf '%s\n' "# $GIT_DIR/MERGE_HEAD"
echo "# and try again"
echo "#"
fi >>"$GIT_DIR"/COMMIT_EDITMSG
# Author
if test '' != "$use_commit"
then
eval "$(get_author_ident_from_commit "$use_commit")"
export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
fi
if test '' != "$force_author"
then
GIT_AUTHOR_NAME=`expr "z$force_author" : 'z\(.*[^ ]\) *<.*'` &&
GIT_AUTHOR_EMAIL=`expr "z$force_author" : '.*\(<.*\)'` &&
test '' != "$GIT_AUTHOR_NAME" &&
test '' != "$GIT_AUTHOR_EMAIL" ||
die "malformed --author parameter"
export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
fi
PARENTS="-p HEAD"
if test -z "$initial_commit"
then
rloga='commit'
if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
rloga='commit (merge)'
PARENTS="-p HEAD "`sed -e 's/^/-p /' "$GIT_DIR/MERGE_HEAD"`
elif test -n "$amend"; then
rloga='commit (amend)'
PARENTS=$(git cat-file commit HEAD |
sed -n -e '/^$/q' -e 's/^parent /-p /p')
fi
current="$(git rev-parse --verify HEAD)"
else
if [ -z "$(git ls-files)" ]; then
echo >&2 'nothing to commit (use "git add file1 file2" to include for commit)'
exit 1
fi
PARENTS=""
rloga='commit (initial)'
current=''
fi
set_reflog_action "$rloga"
if test -z "$no_edit"
then
{
echo ""
echo "# Please enter the commit message for your changes."
echo "# (Comment lines starting with '#' will not be included)"
test -z "$only_include_assumed" || echo "$only_include_assumed"
run_status
} >>"$GIT_DIR"/COMMIT_EDITMSG
else
# we need to check if there is anything to commit
run_status >/dev/null
fi
if [ "$?" != "0" -a ! -f "$GIT_DIR/MERGE_HEAD" -a -z "$amend" ]
then
rm -f "$GIT_DIR/COMMIT_EDITMSG" "$GIT_DIR/SQUASH_MSG"
run_status
exit 1
fi
case "$no_edit" in
'')
git-var GIT_AUTHOR_IDENT > /dev/null || die
git-var GIT_COMMITTER_IDENT > /dev/null || die
git_editor "$GIT_DIR/COMMIT_EDITMSG"
;;
esac
case "$verify" in
t)
if test -x "$GIT_DIR"/hooks/commit-msg
then
"$GIT_DIR"/hooks/commit-msg "$GIT_DIR"/COMMIT_EDITMSG || exit
fi
esac
if test -z "$no_edit"
then
sed -e '
/^diff --git a\/.*/{
s///
q
}
/^#/d
' "$GIT_DIR"/COMMIT_EDITMSG
else
cat "$GIT_DIR"/COMMIT_EDITMSG
fi |
git stripspace >"$GIT_DIR"/COMMIT_MSG
# Test whether the commit message has any content we didn't supply.
have_commitmsg=
grep -v -i '^Signed-off-by' "$GIT_DIR"/COMMIT_MSG |
git stripspace > "$GIT_DIR"/COMMIT_BAREMSG
# Is the commit message totally empty?
if test -s "$GIT_DIR"/COMMIT_BAREMSG
then
if test "$templatefile" != ""
then
# Test whether this is just the unaltered template.
if cnt=`sed -e '/^#/d' < "$templatefile" |
git stripspace |
diff "$GIT_DIR"/COMMIT_BAREMSG - |
wc -l` &&
test 0 -lt $cnt
then
have_commitmsg=t
fi
else
# No template, so the content in the commit message must
# have come from the user.
have_commitmsg=t
fi
fi
rm -f "$GIT_DIR"/COMMIT_BAREMSG
if test "$have_commitmsg" = "t"
then
if test -z "$TMP_INDEX"
then
tree=$(GIT_INDEX_FILE="$USE_INDEX" git write-tree)
else
tree=$(GIT_INDEX_FILE="$TMP_INDEX" git write-tree) &&
rm -f "$TMP_INDEX"
fi &&
commit=$(git commit-tree $tree $PARENTS <"$GIT_DIR/COMMIT_MSG") &&
rlogm=$(sed -e 1q "$GIT_DIR"/COMMIT_MSG) &&
git update-ref -m "$GIT_REFLOG_ACTION: $rlogm" HEAD $commit "$current" &&
rm -f -- "$GIT_DIR/MERGE_HEAD" "$GIT_DIR/MERGE_MSG" &&
if test -f "$NEXT_INDEX"
then
mv "$NEXT_INDEX" "$THIS_INDEX"
else
: ;# happy
fi
else
echo >&2 "* no commit message? aborting commit."
false
fi
ret="$?"
rm -f "$GIT_DIR/COMMIT_MSG" "$GIT_DIR/COMMIT_EDITMSG" "$GIT_DIR/SQUASH_MSG"
cd_to_toplevel
git rerere
if test "$ret" = 0
then
if test -x "$GIT_DIR"/hooks/post-commit
then
"$GIT_DIR"/hooks/post-commit
fi
if test -z "$quiet"
then
commit=`git diff-tree --always --shortstat --pretty="format:%h: %s"\
--summary --root HEAD --`
echo "Created${initial_commit:+ initial} commit $commit"
fi
fi
exit "$ret"
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