summaryrefslogtreecommitdiff
path: root/git-commit.sh
blob: 485339754ca3567c86b824af656700654c68e173 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
#!/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
OPTIONS_SPEC=
. 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
}

TMP_INDEX=
THIS_INDEX="${GIT_INDEX_FILE:-$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

	if test "$status_only" = "t" -o "$use_status_color" = "t"; then
		color=
	else
		color=--nocolor
	fi
	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 test $# != 0
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="$1"
		;;
	-F*|-f*)
		no_edit=t
		log_given=t$log_given
		logfile="${1#-[Ff]}"
		;;
	--F=*|--f=*|--fi=*|--fil=*|--file=*)
		no_edit=t
		log_given=t$log_given
		logfile="${1#*=}"
		;;
	-a|--a|--al|--all)
		all=t
		;;
	--au=*|--aut=*|--auth=*|--autho=*|--author=*)
		force_author="${1#*=}"
		;;
	--au|--aut|--auth|--autho|--author)
		case "$#" in 1) usage ;; esac
		shift
		force_author="$1"
		;;
	-e|--e|--ed|--edi|--edit)
		edit_flag=t
		;;
	-i|--i|--in|--inc|--incl|--inclu|--includ|--include)
		also=t
		;;
	--int|--inte|--inter|--intera|--interac|--interact|--interacti|\
	--interactiv|--interactive)
		interactive=t
		;;
	-o|--o|--on|--onl|--only)
		only=t
		;;
	-m|--m|--me|--mes|--mess|--messa|--messag|--message)
		case "$#" in 1) usage ;; esac
		shift
		log_given=m$log_given
		log_message="${log_message:+${log_message}

}$1"
		no_edit=t
		;;
	-m*)
		log_given=m$log_given
		log_message="${log_message:+${log_message}

}${1#-m}"
		no_edit=t
		;;
	--m=*|--me=*|--mes=*|--mess=*|--messa=*|--messag=*|--message=*)
		log_given=m$log_given
		log_message="${log_message:+${log_message}

}${1#*=}"
		no_edit=t
		;;
	-n|--n|--no|--no-|--no-v|--no-ve|--no-ver|--no-veri|--no-verif|\
	--no-verify)
		verify=
		;;
	--a|--am|--ame|--amen|--amend)
		amend=t
		use_commit=HEAD
		;;
	-c)
		case "$#" in 1) usage ;; esac
		shift
		log_given=t$log_given
		use_commit="$1"
		no_edit=
		;;
	--ree=*|--reed=*|--reedi=*|--reedit=*|--reedit-=*|--reedit-m=*|\
	--reedit-me=*|--reedit-mes=*|--reedit-mess=*|--reedit-messa=*|\
	--reedit-messag=*|--reedit-message=*)
		log_given=t$log_given
		use_commit="${1#*=}"
		no_edit=
		;;
	--ree|--reed|--reedi|--reedit|--reedit-|--reedit-m|--reedit-me|\
	--reedit-mes|--reedit-mess|--reedit-messa|--reedit-messag|\
	--reedit-message)
		case "$#" in 1) usage ;; esac
		shift
		log_given=t$log_given
		use_commit="$1"
		no_edit=
		;;
	-C)
		case "$#" in 1) usage ;; esac
		shift
		log_given=t$log_given
		use_commit="$1"
		no_edit=t
		;;
	--reu=*|--reus=*|--reuse=*|--reuse-=*|--reuse-m=*|--reuse-me=*|\
	--reuse-mes=*|--reuse-mess=*|--reuse-messa=*|--reuse-messag=*|\
	--reuse-message=*)
		log_given=t$log_given
		use_commit="${1#*=}"
		no_edit=t
		;;
	--reu|--reus|--reuse|--reuse-|--reuse-m|--reuse-me|--reuse-mes|\
	--reuse-mess|--reuse-messa|--reuse-messag|--reuse-message)
		case "$#" in 1) usage ;; esac
		shift
		log_given=t$log_given
		use_commit="$1"
		no_edit=t
		;;
	-s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
		signoff=t
		;;
	-t|--t|--te|--tem|--temp|--templ|--templa|--templat|--template)
		case "$#" in 1) usage ;; esac
		shift
		templatefile="$1"
		no_edit=
		;;
	-q|--q|--qu|--qui|--quie|--quiet)
		quiet=t
		;;
	-v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
		verbose=t
		;;
	-u|--u|--un|--unt|--untr|--untra|--untrac|--untrack|--untracke|\
	--untracked|--untracked-|--untracked-f|--untracked-fi|--untracked-fil|\
	--untracked-file|--untracked-files)
		untracked_files=t
		;;
	--)
		shift
		break
		;;
	-*)
		usage
		;;
	*)
		break
		;;
	esac
	shift
done
case "$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 can be used." ;;
*tm*|*mt*)
	die "Option -m cannot be combined with -c/-C/-F." ;;
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$$"
		W=
		test -z "$initial_commit" && W=--with-tree=HEAD
		commit_only=`git ls-files --error-unmatch $W -- "$@"` || 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 --add --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
    GIT_INDEX_FILE="${TMP_INDEX:-${USE_INDEX}}" "$GIT_DIR"/hooks/pre-commit \
    || 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" ]
then
	rm -f "$GIT_DIR/COMMIT_EDITMSG" "$GIT_DIR/SQUASH_MSG"
	use_status_color=t
	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 "$ret" = 0
then
	git gc --auto
	if test -x "$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"