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