git-commit.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Linus Torvalds
   4 # Copyright (c) 2006 Junio C Hamano
   5
   6 USAGE='[-a] [-s] [-v] [--no-verify] [-m <message> | -F <logfile> | (-C|-c) <commit>) [--amend] [-e] [--author <author>] [[-i | -o] <path>...]'
   7 SUBDIRECTORY_OK=Yes
   8 . git-sh-setup
   9
  10 git-rev-parse --verify HEAD >/dev/null 2>&1 || initial_commit=t
  11 branch=$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD)
  12
  13 case "$0" in
  14 *status)
  15         status_only=t
  16         unmerged_ok_if_status=--unmerged ;;
  17 *commit)
  18         status_only=
  19         unmerged_ok_if_status= ;;
  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 "$NEXT_INDEX"
  31 save_index () {
  32         cp "$THIS_INDEX" "$NEXT_INDEX"
  33 }
  34
  35 report () {
  36   header="#
  37 # $1:
  38 #   ($2)
  39 #
  40 "
  41   trailer=""
  42   while read status name newname
  43   do
  44     printf '%s' "$header"
  45     header=""
  46     trailer="#
  47 "
  48     case "$status" in
  49     M ) echo "# modified: $name";;
  50     D*) echo "# deleted:  $name";;
  51     T ) echo "# typechange: $name";;
  52     C*) echo "# copied: $name -> $newname";;
  53     R*) echo "# renamed: $name -> $newname";;
  54     A*) echo "# new file: $name";;
  55     U ) echo "# unmerged: $name";;
  56     esac
  57   done
  58   printf '%s' "$trailer"
  59   [ "$header" ]
  60 }
  61
  62 run_status () {
  63     (
  64         # We always show status for the whole tree.
  65         cd "$TOP"
  66
  67         IS_INITIAL="$initial_commit"
  68         REFERENCE=HEAD
  69         case "$amend" in
  70         t)
  71                 # If we are amending the initial commit, there
  72                 # is no HEAD^1.
  73                 if git-rev-parse --verify "HEAD^1" >/dev/null 2>&1
  74                 then
  75                         REFERENCE="HEAD^1"
  76                         IS_INITIAL=
  77                 else
  78                         IS_INITIAL=t
  79                 fi
  80                 ;;
  81         esac
  82
  83         # If TMP_INDEX is defined, that means we are doing
  84         # "--only" partial commit, and that index file is used
  85         # to build the tree for the commit.  Otherwise, if
  86         # NEXT_INDEX exists, that is the index file used to
  87         # make the commit.  Otherwise we are using as-is commit
  88         # so the regular index file is what we use to compare.
  89         if test '' != "$TMP_INDEX"
  90         then
  91             GIT_INDEX_FILE="$TMP_INDEX"
  92             export GIT_INDEX_FILE
  93         elif test -f "$NEXT_INDEX"
  94         then
  95             GIT_INDEX_FILE="$NEXT_INDEX"
  96             export GIT_INDEX_FILE
  97         fi
  98
  99         case "$branch" in
 100         refs/heads/master) ;;
 101         *)  echo "# On branch $branch" ;;
 102         esac
 103
 104         if test -z "$IS_INITIAL"
 105         then
 106             git-diff-index -M --cached --name-status \
 107                 --diff-filter=MDTCRA $REFERENCE |
 108             sed -e '
 109                     s/\\/\\\\/g
 110                     s/ /\\ /g
 111             ' |
 112             report "Updated but not checked in" "will commit"
 113             committable="$?"
 114         else
 115             echo '#
 116 # Initial commit
 117 #'
 118             git-ls-files |
 119             sed -e '
 120                     s/\\/\\\\/g
 121                     s/ /\\ /g
 122                     s/^/A /
 123             ' |
 124             report "Updated but not checked in" "will commit"
 125
 126             committable="$?"
 127         fi
 128
 129         git-diff-files  --name-status |
 130         sed -e '
 131                 s/\\/\\\\/g
 132                 s/ /\\ /g
 133         ' |
 134         report "Changed but not updated" \
 135             "use git-update-index to mark for commit"
 136
 137         if test -f "$GIT_DIR/info/exclude"
 138         then
 139             git-ls-files -z --others --directory \
 140                 --exclude-from="$GIT_DIR/info/exclude" \
 141                 --exclude-per-directory=.gitignore
 142         else
 143             git-ls-files -z --others --directory \
 144                 --exclude-per-directory=.gitignore
 145         fi |
 146         perl -e '$/ = "\0";
 147             my $shown = 0;
 148             while (<>) {
 149                 chomp;
 150                 s|\\|\\\\|g;
 151                 s|\t|\\t|g;
 152                 s|\n|\\n|g;
 153                 s/^/#   /;
 154                 if (!$shown) {
 155                     print "#\n# Untracked files:\n";
 156                     print "#   (use \"git add\" to add to commit)\n";
 157                     print "#\n";
 158                     $shown = 1;
 159                 }
 160                 print "$_\n";
 161             }
 162         '
 163
 164         if test -n "$verbose" -a -z "$IS_INITIAL"
 165         then
 166             git-diff-index --cached -M -p --diff-filter=MDTCRA $REFERENCE
 167         fi
 168         case "$committable" in
 169         0)
 170             echo "nothing to commit"
 171             exit 1
 172         esac
 173         exit 0
 174     )
 175 }
 176
 177 trap '
 178         test -z "$TMP_INDEX" || {
 179                 test -f "$TMP_INDEX" && rm -f "$TMP_INDEX"
 180         }
 181         rm -f "$NEXT_INDEX"
 182 ' 0
 183
 184 ################################################################
 185 # Command line argument parsing and sanity checking
 186
 187 all=
 188 also=
 189 only=
 190 logfile=
 191 use_commit=
 192 amend=
 193 no_edit=
 194 log_given=
 195 log_message=
 196 verify=t
 197 verbose=
 198 signoff=
 199 force_author=
 200 only_include_assumed=
 201 while case "$#" in 0) break;; esac
 202 do
 203   case "$1" in
 204   -F|--F|-f|--f|--fi|--fil|--file)
 205       case "$#" in 1) usage ;; esac
 206       shift
 207       no_edit=t
 208       log_given=t$log_given
 209       logfile="$1"
 210       shift
 211       ;;
 212   -F*|-f*)
 213       no_edit=t
 214       log_given=t$log_given
 215       logfile=`expr "$1" : '-[Ff]\(.*\)'`
 216       shift
 217       ;;
 218   --F=*|--f=*|--fi=*|--fil=*|--file=*)
 219       no_edit=t
 220       log_given=t$log_given
 221       logfile=`expr "$1" : '-[^=]*=\(.*\)'`
 222       shift
 223       ;;
 224   -a|--a|--al|--all)
 225       all=t
 226       shift
 227       ;;
 228   --au=*|--aut=*|--auth=*|--autho=*|--author=*)
 229       force_author=`expr "$1" : '-[^=]*=\(.*\)'`
 230       shift
 231       ;;
 232   --au|--aut|--auth|--autho|--author)
 233       case "$#" in 1) usage ;; esac
 234       shift
 235       force_author="$1"
 236       shift
 237       ;;
 238   -e|--e|--ed|--edi|--edit)
 239       no_edit=
 240       shift
 241       ;;
 242   -i|--i|--in|--inc|--incl|--inclu|--includ|--include)
 243       also=t
 244       shift
 245       ;;
 246   -o|--o|--on|--onl|--only)
 247       only=t
 248       shift
 249       ;;
 250   -m|--m|--me|--mes|--mess|--messa|--messag|--message)
 251       case "$#" in 1) usage ;; esac
 252       shift
 253       log_given=t$log_given
 254       log_message="$1"
 255       no_edit=t
 256       shift
 257       ;;
 258   -m*)
 259       log_given=t$log_given
 260       log_message=`expr "$1" : '-m\(.*\)'`
 261       no_edit=t
 262       shift
 263       ;;
 264   --m=*|--me=*|--mes=*|--mess=*|--messa=*|--messag=*|--message=*)
 265       log_given=t$log_given
 266       log_message=`expr "$1" : '-[^=]*=\(.*\)'`
 267       no_edit=t
 268       shift
 269       ;;
 270   -n|--n|--no|--no-|--no-v|--no-ve|--no-ver|--no-veri|--no-verif|--no-verify)
 271       verify=
 272       shift
 273       ;;
 274   --a|--am|--ame|--amen|--amend)
 275       amend=t
 276       log_given=t$log_given
 277       use_commit=HEAD
 278       shift
 279       ;;
 280   -c)
 281       case "$#" in 1) usage ;; esac
 282       shift
 283       log_given=t$log_given
 284       use_commit="$1"
 285       no_edit=
 286       shift
 287       ;;
 288   --ree=*|--reed=*|--reedi=*|--reedit=*|--reedit-=*|--reedit-m=*|\
 289   --reedit-me=*|--reedit-mes=*|--reedit-mess=*|--reedit-messa=*|\
 290   --reedit-messag=*|--reedit-message=*)
 291       log_given=t$log_given
 292       use_commit=`expr "$1" : '-[^=]*=\(.*\)'`
 293       no_edit=
 294       shift
 295       ;;
 296   --ree|--reed|--reedi|--reedit|--reedit-|--reedit-m|--reedit-me|\
 297   --reedit-mes|--reedit-mess|--reedit-messa|--reedit-messag|--reedit-message)
 298       case "$#" in 1) usage ;; esac
 299       shift
 300       log_given=t$log_given
 301       use_commit="$1"
 302       no_edit=
 303       shift
 304       ;;
 305   -C)
 306       case "$#" in 1) usage ;; esac
 307       shift
 308       log_given=t$log_given
 309       use_commit="$1"
 310       no_edit=t
 311       shift
 312       ;;
 313   --reu=*|--reus=*|--reuse=*|--reuse-=*|--reuse-m=*|--reuse-me=*|\
 314   --reuse-mes=*|--reuse-mess=*|--reuse-messa=*|--reuse-messag=*|\
 315   --reuse-message=*)
 316       log_given=t$log_given
 317       use_commit=`expr "$1" : '-[^=]*=\(.*\)'`
 318       no_edit=t
 319       shift
 320       ;;
 321   --reu|--reus|--reuse|--reuse-|--reuse-m|--reuse-me|--reuse-mes|\
 322   --reuse-mess|--reuse-messa|--reuse-messag|--reuse-message)
 323       case "$#" in 1) usage ;; esac
 324       shift
 325       log_given=t$log_given
 326       use_commit="$1"
 327       no_edit=t
 328       shift
 329       ;;
 330   -s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
 331       signoff=t
 332       shift
 333       ;;
 334   -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 335       verbose=t
 336       shift
 337       ;;
 338   --)
 339       shift
 340       break
 341       ;;
 342   -*)
 343       usage
 344       ;;
 345   *)
 346       break
 347       ;;
 348   esac
 349 done
 350
 351 ################################################################
 352 # Sanity check options
 353
 354 case "$amend,$initial_commit" in
 355 t,t)
 356   die "You do not have anything to amend." ;;
 357 t,)
 358   if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
 359     die "You are in the middle of a merge -- cannot amend."
 360   fi ;;
 361 esac
 362
 363 case "$log_given" in
 364 tt*)
 365   die "Only one of -c/-C/-F/-m can be used." ;;
 366 esac
 367
 368 case "$#,$also$only" in
 369 *,tt)
 370   die "Only one of --include/--only can be used." ;;
 371 0,t)
 372   die "No paths with --include/--only does not make sense." ;;
 373 0,)
 374   ;;
 375 *,)
 376   only_include_assumed="# Explicit paths specified without -i nor -o; assuming --only paths..."
 377   also=
 378   ;;
 379 esac
 380 unset only
 381 case "$all,$also,$#" in
 382 t,t,*)
 383         die "Cannot use -a and -i at the same time." ;;
 384 t,,[1-9]*)
 385         die "Paths with -a does not make sense." ;;
 386 ,t,0)
 387         die "No paths with -i does not make sense." ;;
 388 esac
 389
 390 ################################################################
 391 # Prepare index to have a tree to be committed
 392
 393 TOP=`git-rev-parse --show-cdup`
 394 if test -z "$TOP"
 395 then
 396         TOP=./
 397 fi
 398
 399 case "$all,$also" in
 400 t,)
 401         save_index &&
 402         (
 403                 cd "$TOP"
 404                 GIT_INDEX_FILE="$NEXT_INDEX"
 405                 export GIT_INDEX_FILE
 406                 git-diff-files --name-only -z |
 407                 git-update-index --remove -z --stdin
 408         )
 409         ;;
 410 ,t)
 411         save_index &&
 412         git-ls-files --error-unmatch -- "$@" >/dev/null || exit
 413
 414         git-diff-files --name-only -z -- "$@"  |
 415         (
 416                 cd "$TOP"
 417                 GIT_INDEX_FILE="$NEXT_INDEX"
 418                 export GIT_INDEX_FILE
 419                 git-update-index --remove -z --stdin
 420         )
 421         ;;
 422 ,)
 423         case "$#" in
 424         0)
 425             ;; # commit as-is
 426         *)
 427             if test -f "$GIT_DIR/MERGE_HEAD"
 428             then
 429                 refuse_partial "Cannot do a partial commit during a merge."
 430             fi
 431             TMP_INDEX="$GIT_DIR/tmp-index$$"
 432             if test -z "$initial_commit"
 433             then
 434                 # make sure index is clean at the specified paths, or
 435                 # they are additions.
 436                 dirty_in_index=`git-diff-index --cached --name-status \
 437                         --diff-filter=DMTU HEAD -- "$@"`
 438                 test -z "$dirty_in_index" ||
 439                 refuse_partial "Different in index and the last commit:
 440 $dirty_in_index"
 441             fi
 442             commit_only=`git-ls-files --error-unmatch -- "$@"` || exit
 443
 444             # Build the temporary index and update the real index
 445             # the same way.
 446             if test -z "$initial_commit"
 447             then
 448                 cp "$THIS_INDEX" "$TMP_INDEX"
 449                 GIT_INDEX_FILE="$TMP_INDEX" git-read-tree -m HEAD
 450             else
 451                     rm -f "$TMP_INDEX"
 452             fi || exit
 453
 454             echo "$commit_only" |
 455             GIT_INDEX_FILE="$TMP_INDEX" \
 456             git-update-index --add --remove --stdin &&
 457
 458             save_index &&
 459             echo "$commit_only" |
 460             (
 461                 GIT_INDEX_FILE="$NEXT_INDEX"
 462                 export GIT_INDEX_FILE
 463                 git-update-index --remove --stdin
 464             ) || exit
 465             ;;
 466         esac
 467         ;;
 468 esac
 469
 470 ################################################################
 471 # If we do as-is commit, the index file will be THIS_INDEX,
 472 # otherwise NEXT_INDEX after we make this commit.  We leave
 473 # the index as is if we abort.
 474
 475 if test -f "$NEXT_INDEX"
 476 then
 477         USE_INDEX="$NEXT_INDEX"
 478 else
 479         USE_INDEX="$THIS_INDEX"
 480 fi
 481
 482 GIT_INDEX_FILE="$USE_INDEX" \
 483     git-update-index -q $unmerged_ok_if_status --refresh || exit
 484
 485 ################################################################
 486 # If the request is status, just show it and exit.
 487
 488 case "$0" in
 489 *status)
 490         run_status
 491         exit $?
 492 esac
 493
 494 ################################################################
 495 # Grab commit message, write out tree and make commit.
 496
 497 if test t = "$verify" && test -x "$GIT_DIR"/hooks/pre-commit
 498 then
 499         if test "$TMP_INDEX"
 500         then
 501                 GIT_INDEX_FILE="$TMP_INDEX" "$GIT_DIR"/hooks/pre-commit
 502         else
 503                 GIT_INDEX_FILE="$USE_INDEX" "$GIT_DIR"/hooks/pre-commit
 504         fi || exit
 505 fi
 506
 507 if test "$log_message" != ''
 508 then
 509         echo "$log_message"
 510 elif test "$logfile" != ""
 511 then
 512         if test "$logfile" = -
 513         then
 514                 test -t 0 &&
 515                 echo >&2 "(reading log message from standard input)"
 516                 cat
 517         else
 518                 cat <"$logfile"
 519         fi
 520 elif test "$use_commit" != ""
 521 then
 522         git-cat-file commit "$use_commit" | sed -e '1,/^$/d'
 523 elif test -f "$GIT_DIR/MERGE_HEAD" && test -f "$GIT_DIR/MERGE_MSG"
 524 then
 525         cat "$GIT_DIR/MERGE_MSG"
 526 fi | git-stripspace >"$GIT_DIR"/COMMIT_EDITMSG
 527
 528 case "$signoff" in
 529 t)
 530         {
 531                 echo
 532                 git-var GIT_COMMITTER_IDENT | sed -e '
 533                         s/>.*/>/
 534                         s/^/Signed-off-by: /
 535                 '
 536         } >>"$GIT_DIR"/COMMIT_EDITMSG
 537         ;;
 538 esac
 539
 540 if test -f "$GIT_DIR/MERGE_HEAD" && test -z "$no_edit"; then
 541         echo "#"
 542         echo "# It looks like you may be committing a MERGE."
 543         echo "# If this is not correct, please remove the file"
 544         echo "# $GIT_DIR/MERGE_HEAD"
 545         echo "# and try again"
 546         echo "#"
 547 fi >>"$GIT_DIR"/COMMIT_EDITMSG
 548
 549 # Author
 550 if test '' != "$force_author"
 551 then
 552         GIT_AUTHOR_NAME=`expr "$force_author" : '\(.*[^ ]\) *<.*'` &&
 553         GIT_AUTHOR_EMAIL=`expr "$force_author" : '.*\(<.*\)'` &&
 554         test '' != "$GIT_AUTHOR_NAME" &&
 555         test '' != "$GIT_AUTHOR_EMAIL" ||
 556         die "malformatted --author parameter"
 557         export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
 558 elif test '' != "$use_commit"
 559 then
 560         pick_author_script='
 561         /^author /{
 562                 s/'\''/'\''\\'\'\''/g
 563                 h
 564                 s/^author \([^<]*\) <[^>]*> .*$/\1/
 565                 s/'\''/'\''\'\'\''/g
 566                 s/.*/GIT_AUTHOR_NAME='\''&'\''/p
 567
 568                 g
 569                 s/^author [^<]* <\([^>]*\)> .*$/\1/
 570                 s/'\''/'\''\'\'\''/g
 571                 s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
 572
 573                 g
 574                 s/^author [^<]* <[^>]*> \(.*\)$/\1/
 575                 s/'\''/'\''\'\'\''/g
 576                 s/.*/GIT_AUTHOR_DATE='\''&'\''/p
 577
 578                 q
 579         }
 580         '
 581         set_author_env=`git-cat-file commit "$use_commit" |
 582         LANG=C LC_ALL=C sed -ne "$pick_author_script"`
 583         eval "$set_author_env"
 584         export GIT_AUTHOR_NAME
 585         export GIT_AUTHOR_EMAIL
 586         export GIT_AUTHOR_DATE
 587 fi
 588
 589 PARENTS="-p HEAD"
 590 if test -z "$initial_commit"
 591 then
 592         if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
 593                 PARENTS="-p HEAD "`sed -e 's/^/-p /' "$GIT_DIR/MERGE_HEAD"`
 594         elif test -n "$amend"; then
 595                 PARENTS=$(git-cat-file commit HEAD |
 596                         sed -n -e '/^$/q' -e 's/^parent /-p /p')
 597         fi
 598         current=$(git-rev-parse --verify HEAD)
 599 else
 600         if [ -z "$(git-ls-files)" ]; then
 601                 echo >&2 Nothing to commit
 602                 exit 1
 603         fi
 604         PARENTS=""
 605         current=
 606 fi
 607
 608 if test -z "$no_edit"
 609 then
 610         {
 611                 test -z "$only_include_assumed" || echo "$only_include_assumed"
 612                 run_status
 613         } >>"$GIT_DIR"/COMMIT_EDITMSG
 614 else
 615         # we need to check if there is anything to commit
 616         run_status >/dev/null
 617 fi
 618 if [ "$?" != "0" -a ! -f "$GIT_DIR/MERGE_HEAD" -a -z "$amend" ]
 619 then
 620         rm -f "$GIT_DIR/COMMIT_EDITMSG"
 621         run_status
 622         exit 1
 623 fi
 624
 625 case "$no_edit" in
 626 '')
 627         case "${VISUAL:-$EDITOR},$TERM" in
 628         ,dumb)
 629                 echo >&2 "Terminal is dumb but no VISUAL nor EDITOR defined."
 630                 echo >&2 "Please supply the commit log message using either"
 631                 echo >&2 "-m or -F option.  A boilerplate log message has"
 632                 echo >&2 "been prepared in $GIT_DIR/COMMIT_EDITMSG"
 633                 exit 1
 634                 ;;
 635         esac
 636         ${VISUAL:-${EDITOR:-vi}} "$GIT_DIR/COMMIT_EDITMSG"
 637         ;;
 638 esac
 639
 640 case "$verify" in
 641 t)
 642         if test -x "$GIT_DIR"/hooks/commit-msg
 643         then
 644                 "$GIT_DIR"/hooks/commit-msg "$GIT_DIR"/COMMIT_EDITMSG || exit
 645         fi
 646 esac
 647
 648 sed -e '
 649     /^diff --git a\/.*/{
 650         s///
 651         q
 652     }
 653     /^#/d
 654 ' "$GIT_DIR"/COMMIT_EDITMSG |
 655 git-stripspace >"$GIT_DIR"/COMMIT_MSG
 656
 657 if cnt=`grep -v -i '^Signed-off-by' "$GIT_DIR"/COMMIT_MSG |
 658         git-stripspace |
 659         wc -l` &&
 660    test 0 -lt $cnt
 661 then
 662         if test -z "$TMP_INDEX"
 663         then
 664                 tree=$(GIT_INDEX_FILE="$USE_INDEX" git-write-tree)
 665         else
 666                 tree=$(GIT_INDEX_FILE="$TMP_INDEX" git-write-tree) &&
 667                 rm -f "$TMP_INDEX"
 668         fi &&
 669         commit=$(cat "$GIT_DIR"/COMMIT_MSG | git-commit-tree $tree $PARENTS) &&
 670         git-update-ref HEAD $commit $current &&
 671         rm -f -- "$GIT_DIR/MERGE_HEAD" &&
 672         if test -f "$NEXT_INDEX"
 673         then
 674                 mv "$NEXT_INDEX" "$THIS_INDEX"
 675         else
 676                 : ;# happy
 677         fi
 678 else
 679         echo >&2 "* no commit message?  aborting commit."
 680         false
 681 fi
 682 ret="$?"
 683 rm -f "$GIT_DIR/COMMIT_MSG" "$GIT_DIR/COMMIT_EDITMSG"
 684 if test -d "$GIT_DIR/rr-cache"
 685 then
 686         git-rerere
 687 fi
 688
 689 if test -x "$GIT_DIR"/hooks/post-commit && test "$ret" = 0
 690 then
 691         "$GIT_DIR"/hooks/post-commit
 692 fi
 693 exit "$ret"