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>] [--template <file>] [[-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 "$1"
  24         echo >&2 "You might have meant to say 'git commit -i paths...', perhaps?"
  25         exit 1
  26 }
  27
  28 TMP_INDEX=
  29 THIS_INDEX="$GIT_DIR/index"
  30 NEXT_INDEX="$GIT_DIR/next-index$$"
  31 rm -f "$NEXT_INDEX"
  32 save_index () {
  33         cp -p "$THIS_INDEX" "$NEXT_INDEX"
  34 }
  35
  36 run_status () {
  37         # If TMP_INDEX is defined, that means we are doing
  38         # "--only" partial commit, and that index file is used
  39         # to build the tree for the commit.  Otherwise, if
  40         # NEXT_INDEX exists, that is the index file used to
  41         # make the commit.  Otherwise we are using as-is commit
  42         # so the regular index file is what we use to compare.
  43         if test '' != "$TMP_INDEX"
  44         then
  45                 GIT_INDEX_FILE="$TMP_INDEX"
  46                 export GIT_INDEX_FILE
  47         elif test -f "$NEXT_INDEX"
  48         then
  49                 GIT_INDEX_FILE="$NEXT_INDEX"
  50                 export GIT_INDEX_FILE
  51         fi
  52
  53         if test "$status_only" = "t" -o "$use_status_color" = "t"; then
  54                 color=
  55         else
  56                 color=--nocolor
  57         fi
  58         git runstatus ${color} \
  59                 ${verbose:+--verbose} \
  60                 ${amend:+--amend} \
  61                 ${untracked_files:+--untracked}
  62 }
  63
  64 trap '
  65         test -z "$TMP_INDEX" || {
  66                 test -f "$TMP_INDEX" && rm -f "$TMP_INDEX"
  67         }
  68         rm -f "$NEXT_INDEX"
  69 ' 0
  70
  71 ################################################################
  72 # Command line argument parsing and sanity checking
  73
  74 all=
  75 also=
  76 interactive=
  77 only=
  78 logfile=
  79 use_commit=
  80 amend=
  81 edit_flag=
  82 no_edit=
  83 log_given=
  84 log_message=
  85 verify=t
  86 quiet=
  87 verbose=
  88 signoff=
  89 force_author=
  90 only_include_assumed=
  91 untracked_files=
  92 templatefile="`git config commit.template`"
  93 while test $# != 0
  94 do
  95         case "$1" in
  96         -F|--F|-f|--f|--fi|--fil|--file)
  97                 case "$#" in 1) usage ;; esac
  98                 shift
  99                 no_edit=t
 100                 log_given=t$log_given
 101                 logfile="$1"
 102                 shift
 103                 ;;
 104         -F*|-f*)
 105                 no_edit=t
 106                 log_given=t$log_given
 107                 logfile=`expr "z$1" : 'z-[Ff]\(.*\)'`
 108                 shift
 109                 ;;
 110         --F=*|--f=*|--fi=*|--fil=*|--file=*)
 111                 no_edit=t
 112                 log_given=t$log_given
 113                 logfile=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 114                 shift
 115                 ;;
 116         -a|--a|--al|--all)
 117                 all=t
 118                 shift
 119                 ;;
 120         --au=*|--aut=*|--auth=*|--autho=*|--author=*)
 121                 force_author=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 122                 shift
 123                 ;;
 124         --au|--aut|--auth|--autho|--author)
 125                 case "$#" in 1) usage ;; esac
 126                 shift
 127                 force_author="$1"
 128                 shift
 129                 ;;
 130         -e|--e|--ed|--edi|--edit)
 131                 edit_flag=t
 132                 shift
 133                 ;;
 134         -i|--i|--in|--inc|--incl|--inclu|--includ|--include)
 135                 also=t
 136                 shift
 137                 ;;
 138         --int|--inte|--inter|--intera|--interac|--interact|--interacti|\
 139         --interactiv|--interactive)
 140                 interactive=t
 141                 shift
 142                 ;;
 143         -o|--o|--on|--onl|--only)
 144                 only=t
 145                 shift
 146                 ;;
 147         -m|--m|--me|--mes|--mess|--messa|--messag|--message)
 148                 case "$#" in 1) usage ;; esac
 149                 shift
 150                 log_given=m$log_given
 151                 if test "$log_message" = ''
 152                 then
 153                     log_message="$1"
 154                 else
 155                     log_message="$log_message
 156
 157 $1"
 158                 fi
 159                 no_edit=t
 160                 shift
 161                 ;;
 162         -m*)
 163                 log_given=m$log_given
 164                 if test "$log_message" = ''
 165                 then
 166                     log_message=`expr "z$1" : 'z-m\(.*\)'`
 167                 else
 168                     log_message="$log_message
 169
 170 `expr "z$1" : 'z-m\(.*\)'`"
 171                 fi
 172                 no_edit=t
 173                 shift
 174                 ;;
 175         --m=*|--me=*|--mes=*|--mess=*|--messa=*|--messag=*|--message=*)
 176                 log_given=m$log_given
 177                 if test "$log_message" = ''
 178                 then
 179                     log_message=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 180                 else
 181                     log_message="$log_message
 182
 183 `expr "z$1" : 'zq-[^=]*=\(.*\)'`"
 184                 fi
 185                 no_edit=t
 186                 shift
 187                 ;;
 188         -n|--n|--no|--no-|--no-v|--no-ve|--no-ver|--no-veri|--no-verif|\
 189         --no-verify)
 190                 verify=
 191                 shift
 192                 ;;
 193         --a|--am|--ame|--amen|--amend)
 194                 amend=t
 195                 use_commit=HEAD
 196                 shift
 197                 ;;
 198         -c)
 199                 case "$#" in 1) usage ;; esac
 200                 shift
 201                 log_given=t$log_given
 202                 use_commit="$1"
 203                 no_edit=
 204                 shift
 205                 ;;
 206         --ree=*|--reed=*|--reedi=*|--reedit=*|--reedit-=*|--reedit-m=*|\
 207         --reedit-me=*|--reedit-mes=*|--reedit-mess=*|--reedit-messa=*|\
 208         --reedit-messag=*|--reedit-message=*)
 209                 log_given=t$log_given
 210                 use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 211                 no_edit=
 212                 shift
 213                 ;;
 214         --ree|--reed|--reedi|--reedit|--reedit-|--reedit-m|--reedit-me|\
 215         --reedit-mes|--reedit-mess|--reedit-messa|--reedit-messag|\
 216         --reedit-message)
 217                 case "$#" in 1) usage ;; esac
 218                 shift
 219                 log_given=t$log_given
 220                 use_commit="$1"
 221                 no_edit=
 222                 shift
 223                 ;;
 224         -C)
 225                 case "$#" in 1) usage ;; esac
 226                 shift
 227                 log_given=t$log_given
 228                 use_commit="$1"
 229                 no_edit=t
 230                 shift
 231                 ;;
 232         --reu=*|--reus=*|--reuse=*|--reuse-=*|--reuse-m=*|--reuse-me=*|\
 233         --reuse-mes=*|--reuse-mess=*|--reuse-messa=*|--reuse-messag=*|\
 234         --reuse-message=*)
 235                 log_given=t$log_given
 236                 use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 237                 no_edit=t
 238                 shift
 239                 ;;
 240         --reu|--reus|--reuse|--reuse-|--reuse-m|--reuse-me|--reuse-mes|\
 241         --reuse-mess|--reuse-messa|--reuse-messag|--reuse-message)
 242                 case "$#" in 1) usage ;; esac
 243                 shift
 244                 log_given=t$log_given
 245                 use_commit="$1"
 246                 no_edit=t
 247                 shift
 248                 ;;
 249         -s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
 250                 signoff=t
 251                 shift
 252                 ;;
 253         -t|--t|--te|--tem|--temp|--templ|--templa|--templat|--template)
 254                 case "$#" in 1) usage ;; esac
 255                 shift
 256                 templatefile="$1"
 257                 no_edit=
 258                 shift
 259                 ;;
 260         -q|--q|--qu|--qui|--quie|--quiet)
 261                 quiet=t
 262                 shift
 263                 ;;
 264         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 265                 verbose=t
 266                 shift
 267                 ;;
 268         -u|--u|--un|--unt|--untr|--untra|--untrac|--untrack|--untracke|\
 269         --untracked|--untracked-|--untracked-f|--untracked-fi|--untracked-fil|\
 270         --untracked-file|--untracked-files)
 271                 untracked_files=t
 272                 shift
 273                 ;;
 274         --)
 275                 shift
 276                 break
 277                 ;;
 278         -*)
 279                 usage
 280                 ;;
 281         *)
 282                 break
 283                 ;;
 284         esac
 285 done
 286 case "$edit_flag" in t) no_edit= ;; esac
 287
 288 ################################################################
 289 # Sanity check options
 290
 291 case "$amend,$initial_commit" in
 292 t,t)
 293         die "You do not have anything to amend." ;;
 294 t,)
 295         if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
 296                 die "You are in the middle of a merge -- cannot amend."
 297         fi ;;
 298 esac
 299
 300 case "$log_given" in
 301 tt*)
 302         die "Only one of -c/-C/-F can be used." ;;
 303 *tm*|*mt*)
 304         die "Option -m cannot be combined with -c/-C/-F." ;;
 305 esac
 306
 307 case "$#,$also,$only,$amend" in
 308 *,t,t,*)
 309         die "Only one of --include/--only can be used." ;;
 310 0,t,,* | 0,,t,)
 311         die "No paths with --include/--only does not make sense." ;;
 312 0,,t,t)
 313         only_include_assumed="# Clever... amending the last one with dirty index." ;;
 314 0,,,*)
 315         ;;
 316 *,,,*)
 317         only_include_assumed="# Explicit paths specified without -i nor -o; assuming --only paths..."
 318         also=
 319         ;;
 320 esac
 321 unset only
 322 case "$all,$interactive,$also,$#" in
 323 *t,*t,*)
 324         die "Cannot use -a, --interactive or -i at the same time." ;;
 325 t,,[1-9]*)
 326         die "Paths with -a does not make sense." ;;
 327 ,t,[1-9]*)
 328         die "Paths with --interactive does not make sense." ;;
 329 ,,t,0)
 330         die "No paths with -i does not make sense." ;;
 331 esac
 332
 333 if test ! -z "$templatefile" -a -z "$log_given"
 334 then
 335         if test ! -f "$templatefile"
 336         then
 337                 die "Commit template file does not exist."
 338         fi
 339 fi
 340
 341 ################################################################
 342 # Prepare index to have a tree to be committed
 343
 344 case "$all,$also" in
 345 t,)
 346         if test ! -f "$THIS_INDEX"
 347         then
 348                 die 'nothing to commit (use "git add file1 file2" to include for commit)'
 349         fi
 350         save_index &&
 351         (
 352                 cd_to_toplevel &&
 353                 GIT_INDEX_FILE="$NEXT_INDEX" &&
 354                 export GIT_INDEX_FILE &&
 355                 git diff-files --name-only -z |
 356                 git update-index --remove -z --stdin
 357         ) || exit
 358         ;;
 359 ,t)
 360         save_index &&
 361         git ls-files --error-unmatch -- "$@" >/dev/null || exit
 362
 363         git diff-files --name-only -z -- "$@"  |
 364         (
 365                 cd_to_toplevel &&
 366                 GIT_INDEX_FILE="$NEXT_INDEX" &&
 367                 export GIT_INDEX_FILE &&
 368                 git update-index --remove -z --stdin
 369         ) || exit
 370         ;;
 371 ,)
 372         if test "$interactive" = t; then
 373                 git add --interactive || exit
 374         fi
 375         case "$#" in
 376         0)
 377                 ;; # commit as-is
 378         *)
 379                 if test -f "$GIT_DIR/MERGE_HEAD"
 380                 then
 381                         refuse_partial "Cannot do a partial commit during a merge."
 382                 fi
 383
 384                 TMP_INDEX="$GIT_DIR/tmp-index$$"
 385                 W=
 386                 test -z "$initial_commit" && W=--with-tree=HEAD
 387                 commit_only=`git ls-files --error-unmatch $W -- "$@"` || exit
 388
 389                 # Build a temporary index and update the real index
 390                 # the same way.
 391                 if test -z "$initial_commit"
 392                 then
 393                         GIT_INDEX_FILE="$THIS_INDEX" \
 394                         git read-tree --index-output="$TMP_INDEX" -i -m HEAD
 395                 else
 396                         rm -f "$TMP_INDEX"
 397                 fi || exit
 398
 399                 printf '%s\n' "$commit_only" |
 400                 GIT_INDEX_FILE="$TMP_INDEX" \
 401                 git update-index --add --remove --stdin &&
 402
 403                 save_index &&
 404                 printf '%s\n' "$commit_only" |
 405                 (
 406                         GIT_INDEX_FILE="$NEXT_INDEX"
 407                         export GIT_INDEX_FILE
 408                         git update-index --add --remove --stdin
 409                 ) || exit
 410                 ;;
 411         esac
 412         ;;
 413 esac
 414
 415 ################################################################
 416 # If we do as-is commit, the index file will be THIS_INDEX,
 417 # otherwise NEXT_INDEX after we make this commit.  We leave
 418 # the index as is if we abort.
 419
 420 if test -f "$NEXT_INDEX"
 421 then
 422         USE_INDEX="$NEXT_INDEX"
 423 else
 424         USE_INDEX="$THIS_INDEX"
 425 fi
 426
 427 case "$status_only" in
 428 t)
 429         # This will silently fail in a read-only repository, which is
 430         # what we want.
 431         GIT_INDEX_FILE="$USE_INDEX" git update-index -q --unmerged --refresh
 432         run_status
 433         exit $?
 434         ;;
 435 '')
 436         GIT_INDEX_FILE="$USE_INDEX" git update-index -q --refresh || exit
 437         ;;
 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         printf '%s\n' "$log_message"
 456 elif test "$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 "$use_commit" != ""
 467 then
 468         encoding=$(git config i18n.commitencoding || echo UTF-8)
 469         git show -s --pretty=raw --encoding="$encoding" "$use_commit" |
 470         sed -e '1,/^$/d' -e 's/^    //'
 471 elif test -f "$GIT_DIR/MERGE_MSG"
 472 then
 473         cat "$GIT_DIR/MERGE_MSG"
 474 elif test -f "$GIT_DIR/SQUASH_MSG"
 475 then
 476         cat "$GIT_DIR/SQUASH_MSG"
 477 elif test "$templatefile" != ""
 478 then
 479         cat "$templatefile"
 480 fi | git stripspace >"$GIT_DIR"/COMMIT_EDITMSG
 481
 482 case "$signoff" in
 483 t)
 484         sign=$(git-var GIT_COMMITTER_IDENT | sed -e '
 485                 s/>.*/>/
 486                 s/^/Signed-off-by: /
 487                 ')
 488         blank_before_signoff=
 489         tail -n 1 "$GIT_DIR"/COMMIT_EDITMSG |
 490         grep 'Signed-off-by:' >/dev/null || blank_before_signoff='
 491 '
 492         tail -n 1 "$GIT_DIR"/COMMIT_EDITMSG |
 493         grep "$sign"$ >/dev/null ||
 494         printf '%s%s\n' "$blank_before_signoff" "$sign" \
 495                 >>"$GIT_DIR"/COMMIT_EDITMSG
 496         ;;
 497 esac
 498
 499 if test -f "$GIT_DIR/MERGE_HEAD" && test -z "$no_edit"; then
 500         echo "#"
 501         echo "# It looks like you may be committing a MERGE."
 502         echo "# If this is not correct, please remove the file"
 503         printf '%s\n' "#        $GIT_DIR/MERGE_HEAD"
 504         echo "# and try again"
 505         echo "#"
 506 fi >>"$GIT_DIR"/COMMIT_EDITMSG
 507
 508 # Author
 509 if test '' != "$use_commit"
 510 then
 511         eval "$(get_author_ident_from_commit "$use_commit")"
 512         export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
 513 fi
 514 if test '' != "$force_author"
 515 then
 516         GIT_AUTHOR_NAME=`expr "z$force_author" : 'z\(.*[^ ]\) *<.*'` &&
 517         GIT_AUTHOR_EMAIL=`expr "z$force_author" : '.*\(<.*\)'` &&
 518         test '' != "$GIT_AUTHOR_NAME" &&
 519         test '' != "$GIT_AUTHOR_EMAIL" ||
 520         die "malformed --author parameter"
 521         export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
 522 fi
 523
 524 PARENTS="-p HEAD"
 525 if test -z "$initial_commit"
 526 then
 527         rloga='commit'
 528         if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
 529                 rloga='commit (merge)'
 530                 PARENTS="-p HEAD "`sed -e 's/^/-p /' "$GIT_DIR/MERGE_HEAD"`
 531         elif test -n "$amend"; then
 532                 rloga='commit (amend)'
 533                 PARENTS=$(git cat-file commit HEAD |
 534                         sed -n -e '/^$/q' -e 's/^parent /-p /p')
 535         fi
 536         current="$(git rev-parse --verify HEAD)"
 537 else
 538         if [ -z "$(git ls-files)" ]; then
 539                 echo >&2 'nothing to commit (use "git add file1 file2" to include for commit)'
 540                 exit 1
 541         fi
 542         PARENTS=""
 543         rloga='commit (initial)'
 544         current=''
 545 fi
 546 set_reflog_action "$rloga"
 547
 548 if test -z "$no_edit"
 549 then
 550         {
 551                 echo ""
 552                 echo "# Please enter the commit message for your changes."
 553                 echo "# (Comment lines starting with '#' will not be included)"
 554                 test -z "$only_include_assumed" || echo "$only_include_assumed"
 555                 run_status
 556         } >>"$GIT_DIR"/COMMIT_EDITMSG
 557 else
 558         # we need to check if there is anything to commit
 559         run_status >/dev/null
 560 fi
 561 if [ "$?" != "0" -a ! -f "$GIT_DIR/MERGE_HEAD" ]
 562 then
 563         rm -f "$GIT_DIR/COMMIT_EDITMSG" "$GIT_DIR/SQUASH_MSG"
 564         use_status_color=t
 565         run_status
 566         exit 1
 567 fi
 568
 569 case "$no_edit" in
 570 '')
 571         git-var GIT_AUTHOR_IDENT > /dev/null  || die
 572         git-var GIT_COMMITTER_IDENT > /dev/null  || die
 573         git_editor "$GIT_DIR/COMMIT_EDITMSG"
 574         ;;
 575 esac
 576
 577 case "$verify" in
 578 t)
 579         if test -x "$GIT_DIR"/hooks/commit-msg
 580         then
 581                 "$GIT_DIR"/hooks/commit-msg "$GIT_DIR"/COMMIT_EDITMSG || exit
 582         fi
 583 esac
 584
 585 if test -z "$no_edit"
 586 then
 587     sed -e '
 588         /^diff --git a\/.*/{
 589             s///
 590             q
 591         }
 592         /^#/d
 593     ' "$GIT_DIR"/COMMIT_EDITMSG
 594 else
 595     cat "$GIT_DIR"/COMMIT_EDITMSG
 596 fi |
 597 git stripspace >"$GIT_DIR"/COMMIT_MSG
 598
 599 # Test whether the commit message has any content we didn't supply.
 600 have_commitmsg=
 601 grep -v -i '^Signed-off-by' "$GIT_DIR"/COMMIT_MSG |
 602         git stripspace > "$GIT_DIR"/COMMIT_BAREMSG
 603
 604 # Is the commit message totally empty?
 605 if test -s "$GIT_DIR"/COMMIT_BAREMSG
 606 then
 607         if test "$templatefile" != ""
 608         then
 609                 # Test whether this is just the unaltered template.
 610                 if cnt=`sed -e '/^#/d' < "$templatefile" |
 611                         git stripspace |
 612                         diff "$GIT_DIR"/COMMIT_BAREMSG - |
 613                         wc -l` &&
 614                    test 0 -lt $cnt
 615                 then
 616                         have_commitmsg=t
 617                 fi
 618         else
 619                 # No template, so the content in the commit message must
 620                 # have come from the user.
 621                 have_commitmsg=t
 622         fi
 623 fi
 624
 625 rm -f "$GIT_DIR"/COMMIT_BAREMSG
 626
 627 if test "$have_commitmsg" = "t"
 628 then
 629         if test -z "$TMP_INDEX"
 630         then
 631                 tree=$(GIT_INDEX_FILE="$USE_INDEX" git write-tree)
 632         else
 633                 tree=$(GIT_INDEX_FILE="$TMP_INDEX" git write-tree) &&
 634                 rm -f "$TMP_INDEX"
 635         fi &&
 636         commit=$(git commit-tree $tree $PARENTS <"$GIT_DIR/COMMIT_MSG") &&
 637         rlogm=$(sed -e 1q "$GIT_DIR"/COMMIT_MSG) &&
 638         git update-ref -m "$GIT_REFLOG_ACTION: $rlogm" HEAD $commit "$current" &&
 639         rm -f -- "$GIT_DIR/MERGE_HEAD" "$GIT_DIR/MERGE_MSG" &&
 640         if test -f "$NEXT_INDEX"
 641         then
 642                 mv "$NEXT_INDEX" "$THIS_INDEX"
 643         else
 644                 : ;# happy
 645         fi
 646 else
 647         echo >&2 "* no commit message?  aborting commit."
 648         false
 649 fi
 650 ret="$?"
 651 rm -f "$GIT_DIR/COMMIT_MSG" "$GIT_DIR/COMMIT_EDITMSG" "$GIT_DIR/SQUASH_MSG"
 652
 653 cd_to_toplevel
 654
 655 git rerere
 656
 657 if test "$ret" = 0
 658 then
 659         if test -x "$GIT_DIR"/hooks/post-commit
 660         then
 661                 "$GIT_DIR"/hooks/post-commit
 662         fi
 663         if test -z "$quiet"
 664         then
 665                 commit=`git diff-tree --always --shortstat --pretty="format:%h: %s"\
 666                        --summary --root HEAD --`
 667                 echo "Created${initial_commit:+ initial} commit $commit"
 668         fi
 669 fi
 670
 671 exit "$ret"