git-commit.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Linus Torvalds
   4 # Copyright (c) 2006 Junio C Hamano
   5
   6 USAGE='[-a | --interactive] [-s] [-v] [--no-verify] [-m <message> | -F <logfile> | (-C|-c) <commit> | --amend] [-u] [-e] [--author <author>] [[-i | -o] <path>...]'
   7 SUBDIRECTORY_OK=Yes
   8 . git-sh-setup
   9 require_work_tree
  10
  11 git rev-parse --verify HEAD >/dev/null 2>&1 || initial_commit=t
  12
  13 case "$0" in
  14 *status)
  15         status_only=t
  16         ;;
  17 *commit)
  18         status_only=
  19         ;;
  20 esac
  21
  22 refuse_partial () {
  23         echo >&2 "$1"
  24         echo >&2 "You might have meant to say 'git commit -i paths...', perhaps?"
  25         exit 1
  26 }
  27
  28 THIS_INDEX="$GIT_DIR/index"
  29 NEXT_INDEX="$GIT_DIR/next-index$$"
  30 rm -f "$NEXT_INDEX"
  31 save_index () {
  32         cp -p "$THIS_INDEX" "$NEXT_INDEX"
  33 }
  34
  35 run_status () {
  36         # If TMP_INDEX is defined, that means we are doing
  37         # "--only" partial commit, and that index file is used
  38         # to build the tree for the commit.  Otherwise, if
  39         # NEXT_INDEX exists, that is the index file used to
  40         # make the commit.  Otherwise we are using as-is commit
  41         # so the regular index file is what we use to compare.
  42         if test '' != "$TMP_INDEX"
  43         then
  44                 GIT_INDEX_FILE="$TMP_INDEX"
  45                 export GIT_INDEX_FILE
  46         elif test -f "$NEXT_INDEX"
  47         then
  48                 GIT_INDEX_FILE="$NEXT_INDEX"
  49                 export GIT_INDEX_FILE
  50         fi
  51
  52         case "$status_only" in
  53         t) color= ;;
  54         *) color=--nocolor ;;
  55         esac
  56         git runstatus ${color} \
  57                 ${verbose:+--verbose} \
  58                 ${amend:+--amend} \
  59                 ${untracked_files:+--untracked}
  60 }
  61
  62 trap '
  63         test -z "$TMP_INDEX" || {
  64                 test -f "$TMP_INDEX" && rm -f "$TMP_INDEX"
  65         }
  66         rm -f "$NEXT_INDEX"
  67 ' 0
  68
  69 ################################################################
  70 # Command line argument parsing and sanity checking
  71
  72 all=
  73 also=
  74 interactive=
  75 only=
  76 logfile=
  77 use_commit=
  78 amend=
  79 edit_flag=
  80 no_edit=
  81 log_given=
  82 log_message=
  83 verify=t
  84 quiet=
  85 verbose=
  86 signoff=
  87 force_author=
  88 only_include_assumed=
  89 untracked_files=
  90 while case "$#" in 0) break;; esac
  91 do
  92         case "$1" in
  93         -F|--F|-f|--f|--fi|--fil|--file)
  94                 case "$#" in 1) usage ;; esac
  95                 shift
  96                 no_edit=t
  97                 log_given=t$log_given
  98                 logfile="$1"
  99                 shift
 100                 ;;
 101         -F*|-f*)
 102                 no_edit=t
 103                 log_given=t$log_given
 104                 logfile=`expr "z$1" : 'z-[Ff]\(.*\)'`
 105                 shift
 106                 ;;
 107         --F=*|--f=*|--fi=*|--fil=*|--file=*)
 108                 no_edit=t
 109                 log_given=t$log_given
 110                 logfile=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 111                 shift
 112                 ;;
 113         -a|--a|--al|--all)
 114                 all=t
 115                 shift
 116                 ;;
 117         --au=*|--aut=*|--auth=*|--autho=*|--author=*)
 118                 force_author=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 119                 shift
 120                 ;;
 121         --au|--aut|--auth|--autho|--author)
 122                 case "$#" in 1) usage ;; esac
 123                 shift
 124                 force_author="$1"
 125                 shift
 126                 ;;
 127         -e|--e|--ed|--edi|--edit)
 128                 edit_flag=t
 129                 shift
 130                 ;;
 131         -i|--i|--in|--inc|--incl|--inclu|--includ|--include)
 132                 also=t
 133                 shift
 134                 ;;
 135         --int|--inte|--inter|--intera|--interac|--interact|--interacti|\
 136         --interactiv|--interactive)
 137                 interactive=t
 138                 shift
 139                 ;;
 140         -o|--o|--on|--onl|--only)
 141                 only=t
 142                 shift
 143                 ;;
 144         -m|--m|--me|--mes|--mess|--messa|--messag|--message)
 145                 case "$#" in 1) usage ;; esac
 146                 shift
 147                 log_given=m$log_given
 148                 if test "$log_message" = ''
 149                 then
 150                     log_message="$1"
 151                 else
 152                     log_message="$log_message
 153
 154 $1"
 155                 fi
 156                 no_edit=t
 157                 shift
 158                 ;;
 159         -m*)
 160                 log_given=m$log_given
 161                 if test "$log_message" = ''
 162                 then
 163                     log_message=`expr "z$1" : 'z-m\(.*\)'`
 164                 else
 165                     log_message="$log_message
 166
 167 `expr "z$1" : 'z-m\(.*\)'`"
 168                 fi
 169                 no_edit=t
 170                 shift
 171                 ;;
 172         --m=*|--me=*|--mes=*|--mess=*|--messa=*|--messag=*|--message=*)
 173                 log_given=m$log_given
 174                 if test "$log_message" = ''
 175                 then
 176                     log_message=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 177                 else
 178                     log_message="$log_message
 179
 180 `expr "z$1" : 'zq-[^=]*=\(.*\)'`"
 181                 fi
 182                 no_edit=t
 183                 shift
 184                 ;;
 185         -n|--n|--no|--no-|--no-v|--no-ve|--no-ver|--no-veri|--no-verif|\
 186         --no-verify)
 187                 verify=
 188                 shift
 189                 ;;
 190         --a|--am|--ame|--amen|--amend)
 191                 amend=t
 192                 log_given=t$log_given
 193                 use_commit=HEAD
 194                 shift
 195                 ;;
 196         -c)
 197                 case "$#" in 1) usage ;; esac
 198                 shift
 199                 log_given=t$log_given
 200                 use_commit="$1"
 201                 no_edit=
 202                 shift
 203                 ;;
 204         --ree=*|--reed=*|--reedi=*|--reedit=*|--reedit-=*|--reedit-m=*|\
 205         --reedit-me=*|--reedit-mes=*|--reedit-mess=*|--reedit-messa=*|\
 206         --reedit-messag=*|--reedit-message=*)
 207                 log_given=t$log_given
 208                 use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 209                 no_edit=
 210                 shift
 211                 ;;
 212         --ree|--reed|--reedi|--reedit|--reedit-|--reedit-m|--reedit-me|\
 213         --reedit-mes|--reedit-mess|--reedit-messa|--reedit-messag|\
 214         --reedit-message)
 215                 case "$#" in 1) usage ;; esac
 216                 shift
 217                 log_given=t$log_given
 218                 use_commit="$1"
 219                 no_edit=
 220                 shift
 221                 ;;
 222         -C)
 223                 case "$#" in 1) usage ;; esac
 224                 shift
 225                 log_given=t$log_given
 226                 use_commit="$1"
 227                 no_edit=t
 228                 shift
 229                 ;;
 230         --reu=*|--reus=*|--reuse=*|--reuse-=*|--reuse-m=*|--reuse-me=*|\
 231         --reuse-mes=*|--reuse-mess=*|--reuse-messa=*|--reuse-messag=*|\
 232         --reuse-message=*)
 233                 log_given=t$log_given
 234                 use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 235                 no_edit=t
 236                 shift
 237                 ;;
 238         --reu|--reus|--reuse|--reuse-|--reuse-m|--reuse-me|--reuse-mes|\
 239         --reuse-mess|--reuse-messa|--reuse-messag|--reuse-message)
 240                 case "$#" in 1) usage ;; esac
 241                 shift
 242                 log_given=t$log_given
 243                 use_commit="$1"
 244                 no_edit=t
 245                 shift
 246                 ;;
 247         -s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
 248                 signoff=t
 249                 shift
 250                 ;;
 251         -q|--q|--qu|--qui|--quie|--quiet)
 252                 quiet=t
 253                 shift
 254                 ;;
 255         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 256                 verbose=t
 257                 shift
 258                 ;;
 259         -u|--u|--un|--unt|--untr|--untra|--untrac|--untrack|--untracke|\
 260         --untracked|--untracked-|--untracked-f|--untracked-fi|--untracked-fil|\
 261         --untracked-file|--untracked-files)
 262                 untracked_files=t
 263                 shift
 264                 ;;
 265         --)
 266                 shift
 267                 break
 268                 ;;
 269         -*)
 270                 usage
 271                 ;;
 272         *)
 273                 break
 274                 ;;
 275         esac
 276 done
 277 case "$edit_flag" in t) no_edit= ;; esac
 278
 279 ################################################################
 280 # Sanity check options
 281
 282 case "$amend,$initial_commit" in
 283 t,t)
 284         die "You do not have anything to amend." ;;
 285 t,)
 286         if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
 287                 die "You are in the middle of a merge -- cannot amend."
 288         fi ;;
 289 esac
 290
 291 case "$log_given" in
 292 tt*)
 293         die "Only one of -c/-C/-F/--amend can be used." ;;
 294 *tm*|*mt*)
 295         die "Option -m cannot be combined with -c/-C/-F/--amend." ;;
 296 esac
 297
 298 case "$#,$also,$only,$amend" in
 299 *,t,t,*)
 300         die "Only one of --include/--only can be used." ;;
 301 0,t,,* | 0,,t,)
 302         die "No paths with --include/--only does not make sense." ;;
 303 0,,t,t)
 304         only_include_assumed="# Clever... amending the last one with dirty index." ;;
 305 0,,,*)
 306         ;;
 307 *,,,*)
 308         only_include_assumed="# Explicit paths specified without -i nor -o; assuming --only paths..."
 309         also=
 310         ;;
 311 esac
 312 unset only
 313 case "$all,$interactive,$also,$#" in
 314 *t,*t,*)
 315         die "Cannot use -a, --interactive or -i at the same time." ;;
 316 t,,[1-9]*)
 317         die "Paths with -a does not make sense." ;;
 318 ,t,[1-9]*)
 319         die "Paths with --interactive does not make sense." ;;
 320 ,,t,0)
 321         die "No paths with -i does not make sense." ;;
 322 esac
 323
 324 ################################################################
 325 # Prepare index to have a tree to be committed
 326
 327 case "$all,$also" in
 328 t,)
 329         if test ! -f "$THIS_INDEX"
 330         then
 331                 die 'nothing to commit (use "git add file1 file2" to include for commit)'
 332         fi
 333         save_index &&
 334         (
 335                 cd_to_toplevel &&
 336                 GIT_INDEX_FILE="$NEXT_INDEX" &&
 337                 export GIT_INDEX_FILE &&
 338                 git diff-files --name-only -z |
 339                 git update-index --remove -z --stdin
 340         ) || exit
 341         ;;
 342 ,t)
 343         save_index &&
 344         git ls-files --error-unmatch -- "$@" >/dev/null || exit
 345
 346         git diff-files --name-only -z -- "$@"  |
 347         (
 348                 cd_to_toplevel &&
 349                 GIT_INDEX_FILE="$NEXT_INDEX" &&
 350                 export GIT_INDEX_FILE &&
 351                 git update-index --remove -z --stdin
 352         ) || exit
 353         ;;
 354 ,)
 355         if test "$interactive" = t; then
 356                 git add --interactive || exit
 357         fi
 358         case "$#" in
 359         0)
 360                 ;; # commit as-is
 361         *)
 362                 if test -f "$GIT_DIR/MERGE_HEAD"
 363                 then
 364                         refuse_partial "Cannot do a partial commit during a merge."
 365                 fi
 366                 TMP_INDEX="$GIT_DIR/tmp-index$$"
 367                 commit_only=`git ls-files --error-unmatch -- "$@"` || exit
 368
 369                 # Build a temporary index and update the real index
 370                 # the same way.
 371                 if test -z "$initial_commit"
 372                 then
 373                         GIT_INDEX_FILE="$THIS_INDEX" \
 374                         git read-tree --index-output="$TMP_INDEX" -i -m HEAD
 375                 else
 376                         rm -f "$TMP_INDEX"
 377                 fi || exit
 378
 379                 printf '%s\n' "$commit_only" |
 380                 GIT_INDEX_FILE="$TMP_INDEX" \
 381                 git update-index --add --remove --stdin &&
 382
 383                 save_index &&
 384                 printf '%s\n' "$commit_only" |
 385                 (
 386                         GIT_INDEX_FILE="$NEXT_INDEX"
 387                         export GIT_INDEX_FILE
 388                         git update-index --remove --stdin
 389                 ) || exit
 390                 ;;
 391         esac
 392         ;;
 393 esac
 394
 395 ################################################################
 396 # If we do as-is commit, the index file will be THIS_INDEX,
 397 # otherwise NEXT_INDEX after we make this commit.  We leave
 398 # the index as is if we abort.
 399
 400 if test -f "$NEXT_INDEX"
 401 then
 402         USE_INDEX="$NEXT_INDEX"
 403 else
 404         USE_INDEX="$THIS_INDEX"
 405 fi
 406
 407 case "$status_only" in
 408 t)
 409         # This will silently fail in a read-only repository, which is
 410         # what we want.
 411         GIT_INDEX_FILE="$USE_INDEX" git update-index -q --unmerged --refresh
 412         run_status
 413         exit $?
 414         ;;
 415 '')
 416         GIT_INDEX_FILE="$USE_INDEX" git update-index -q --refresh || exit
 417         ;;
 418 esac
 419
 420 ################################################################
 421 # Grab commit message, write out tree and make commit.
 422
 423 if test t = "$verify" && test -x "$GIT_DIR"/hooks/pre-commit
 424 then
 425         if test "$TMP_INDEX"
 426         then
 427                 GIT_INDEX_FILE="$TMP_INDEX" "$GIT_DIR"/hooks/pre-commit
 428         else
 429                 GIT_INDEX_FILE="$USE_INDEX" "$GIT_DIR"/hooks/pre-commit
 430         fi || exit
 431 fi
 432
 433 if test "$log_message" != ''
 434 then
 435         printf '%s\n' "$log_message"
 436 elif test "$logfile" != ""
 437 then
 438         if test "$logfile" = -
 439         then
 440                 test -t 0 &&
 441                 echo >&2 "(reading log message from standard input)"
 442                 cat
 443         else
 444                 cat <"$logfile"
 445         fi
 446 elif test "$use_commit" != ""
 447 then
 448         encoding=$(git config i18n.commitencoding || echo UTF-8)
 449         git show -s --pretty=raw --encoding="$encoding" "$use_commit" |
 450         sed -e '1,/^$/d' -e 's/^    //'
 451 elif test -f "$GIT_DIR/MERGE_MSG"
 452 then
 453         cat "$GIT_DIR/MERGE_MSG"
 454 elif test -f "$GIT_DIR/SQUASH_MSG"
 455 then
 456         cat "$GIT_DIR/SQUASH_MSG"
 457 fi | git stripspace >"$GIT_DIR"/COMMIT_EDITMSG
 458
 459 case "$signoff" in
 460 t)
 461         need_blank_before_signoff=
 462         tail -n 1 "$GIT_DIR"/COMMIT_EDITMSG |
 463         grep 'Signed-off-by:' >/dev/null || need_blank_before_signoff=yes
 464         {
 465                 test -z "$need_blank_before_signoff" || echo
 466                 git-var GIT_COMMITTER_IDENT | sed -e '
 467                         s/>.*/>/
 468                         s/^/Signed-off-by: /
 469                 '
 470         } >>"$GIT_DIR"/COMMIT_EDITMSG
 471         ;;
 472 esac
 473
 474 if test -f "$GIT_DIR/MERGE_HEAD" && test -z "$no_edit"; then
 475         echo "#"
 476         echo "# It looks like you may be committing a MERGE."
 477         echo "# If this is not correct, please remove the file"
 478         printf '%s\n' "#        $GIT_DIR/MERGE_HEAD"
 479         echo "# and try again"
 480         echo "#"
 481 fi >>"$GIT_DIR"/COMMIT_EDITMSG
 482
 483 # Author
 484 if test '' != "$use_commit"
 485 then
 486         eval "$(get_author_ident_from_commit "$use_commit")"
 487         export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
 488 fi
 489 if test '' != "$force_author"
 490 then
 491         GIT_AUTHOR_NAME=`expr "z$force_author" : 'z\(.*[^ ]\) *<.*'` &&
 492         GIT_AUTHOR_EMAIL=`expr "z$force_author" : '.*\(<.*\)'` &&
 493         test '' != "$GIT_AUTHOR_NAME" &&
 494         test '' != "$GIT_AUTHOR_EMAIL" ||
 495         die "malformed --author parameter"
 496         export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
 497 fi
 498
 499 PARENTS="-p HEAD"
 500 if test -z "$initial_commit"
 501 then
 502         rloga='commit'
 503         if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
 504                 rloga='commit (merge)'
 505                 PARENTS="-p HEAD "`sed -e 's/^/-p /' "$GIT_DIR/MERGE_HEAD"`
 506         elif test -n "$amend"; then
 507                 rloga='commit (amend)'
 508                 PARENTS=$(git cat-file commit HEAD |
 509                         sed -n -e '/^$/q' -e 's/^parent /-p /p')
 510         fi
 511         current="$(git rev-parse --verify HEAD)"
 512 else
 513         if [ -z "$(git ls-files)" ]; then
 514                 echo >&2 'nothing to commit (use "git add file1 file2" to include for commit)'
 515                 exit 1
 516         fi
 517         PARENTS=""
 518         rloga='commit (initial)'
 519         current=''
 520 fi
 521 set_reflog_action "$rloga"
 522
 523 if test -z "$no_edit"
 524 then
 525         {
 526                 echo ""
 527                 echo "# Please enter the commit message for your changes."
 528                 echo "# (Comment lines starting with '#' will not be included)"
 529                 test -z "$only_include_assumed" || echo "$only_include_assumed"
 530                 run_status
 531         } >>"$GIT_DIR"/COMMIT_EDITMSG
 532 else
 533         # we need to check if there is anything to commit
 534         run_status >/dev/null
 535 fi
 536 if [ "$?" != "0" -a ! -f "$GIT_DIR/MERGE_HEAD" -a -z "$amend" ]
 537 then
 538         rm -f "$GIT_DIR/COMMIT_EDITMSG" "$GIT_DIR/SQUASH_MSG"
 539         run_status
 540         exit 1
 541 fi
 542
 543 case "$no_edit" in
 544 '')
 545         case "${VISUAL:-$EDITOR},$TERM" in
 546         ,dumb)
 547                 echo >&2 "Terminal is dumb but no VISUAL nor EDITOR defined."
 548                 echo >&2 "Please supply the commit log message using either"
 549                 echo >&2 "-m or -F option.  A boilerplate log message has"
 550                 echo >&2 "been prepared in $GIT_DIR/COMMIT_EDITMSG"
 551                 exit 1
 552                 ;;
 553         esac
 554         git-var GIT_AUTHOR_IDENT > /dev/null  || die
 555         git-var GIT_COMMITTER_IDENT > /dev/null  || die
 556         ${VISUAL:-${EDITOR:-vi}} "$GIT_DIR/COMMIT_EDITMSG"
 557         ;;
 558 esac
 559
 560 case "$verify" in
 561 t)
 562         if test -x "$GIT_DIR"/hooks/commit-msg
 563         then
 564                 "$GIT_DIR"/hooks/commit-msg "$GIT_DIR"/COMMIT_EDITMSG || exit
 565         fi
 566 esac
 567
 568 if test -z "$no_edit"
 569 then
 570     sed -e '
 571         /^diff --git a\/.*/{
 572             s///
 573             q
 574         }
 575         /^#/d
 576     ' "$GIT_DIR"/COMMIT_EDITMSG
 577 else
 578     cat "$GIT_DIR"/COMMIT_EDITMSG
 579 fi |
 580 git stripspace >"$GIT_DIR"/COMMIT_MSG
 581
 582 if cnt=`grep -v -i '^Signed-off-by' "$GIT_DIR"/COMMIT_MSG |
 583         git stripspace |
 584         wc -l` &&
 585    test 0 -lt $cnt
 586 then
 587         if test -z "$TMP_INDEX"
 588         then
 589                 tree=$(GIT_INDEX_FILE="$USE_INDEX" git write-tree)
 590         else
 591                 tree=$(GIT_INDEX_FILE="$TMP_INDEX" git write-tree) &&
 592                 rm -f "$TMP_INDEX"
 593         fi &&
 594         commit=$(cat "$GIT_DIR"/COMMIT_MSG | git commit-tree $tree $PARENTS) &&
 595         rlogm=$(sed -e 1q "$GIT_DIR"/COMMIT_MSG) &&
 596         git update-ref -m "$GIT_REFLOG_ACTION: $rlogm" HEAD $commit "$current" &&
 597         rm -f -- "$GIT_DIR/MERGE_HEAD" "$GIT_DIR/MERGE_MSG" &&
 598         if test -f "$NEXT_INDEX"
 599         then
 600                 mv "$NEXT_INDEX" "$THIS_INDEX"
 601         else
 602                 : ;# happy
 603         fi
 604 else
 605         echo >&2 "* no commit message?  aborting commit."
 606         false
 607 fi
 608 ret="$?"
 609 rm -f "$GIT_DIR/COMMIT_MSG" "$GIT_DIR/COMMIT_EDITMSG" "$GIT_DIR/SQUASH_MSG"
 610
 611 cd_to_toplevel
 612
 613 if test -d "$GIT_DIR/rr-cache"
 614 then
 615         git rerere
 616 fi
 617
 618 if test "$ret" = 0
 619 then
 620         if test -x "$GIT_DIR"/hooks/post-commit
 621         then
 622                 "$GIT_DIR"/hooks/post-commit
 623         fi
 624         if test -z "$quiet"
 625         then
 626                 commit=`git diff-tree --always --shortstat --pretty="format:%h: %s"\
 627                        --summary --root HEAD --`
 628                 echo "Created${initial_commit:+ initial} commit $commit"
 629         fi
 630 fi
 631
 632 exit "$ret"