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 "$1"
  24         echo >&2 "You might have meant to say 'git commit -i paths...', perhaps?"
  25         exit 1
  26 }
  27
  28 THIS_INDEX="$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="$NEXT_INDEX"
  49                 export GIT_INDEX_FILE
  50         fi
  51
  52         if test "$status_only" = "t" -o "$use_status_color" = "t"; then
  53                 color=
  54         else
  55                 color=--nocolor
  56         fi
  57         git runstatus ${color} \
  58                 ${verbose:+--verbose} \
  59                 ${amend:+--amend} \
  60                 ${untracked_files:+--untracked}
  61 }
  62
  63 trap '
  64         test -z "$TMP_INDEX" || {
  65                 test -f "$TMP_INDEX" && rm -f "$TMP_INDEX"
  66         }
  67         rm -f "$NEXT_INDEX"
  68 ' 0
  69
  70 ################################################################
  71 # Command line argument parsing and sanity checking
  72
  73 all=
  74 also=
  75 interactive=
  76 only=
  77 logfile=
  78 use_commit=
  79 amend=
  80 edit_flag=
  81 no_edit=
  82 log_given=
  83 log_message=
  84 verify=t
  85 quiet=
  86 verbose=
  87 signoff=
  88 force_author=
  89 only_include_assumed=
  90 untracked_files=
  91 templatefile="`git config commit.template`"
  92 while case "$#" in 0) break;; esac
  93 do
  94         case "$1" in
  95         -F|--F|-f|--f|--fi|--fil|--file)
  96                 case "$#" in 1) usage ;; esac
  97                 shift
  98                 no_edit=t
  99                 log_given=t$log_given
 100                 logfile="$1"
 101                 shift
 102                 ;;
 103         -F*|-f*)
 104                 no_edit=t
 105                 log_given=t$log_given
 106                 logfile=`expr "z$1" : 'z-[Ff]\(.*\)'`
 107                 shift
 108                 ;;
 109         --F=*|--f=*|--fi=*|--fil=*|--file=*)
 110                 no_edit=t
 111                 log_given=t$log_given
 112                 logfile=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 113                 shift
 114                 ;;
 115         -a|--a|--al|--all)
 116                 all=t
 117                 shift
 118                 ;;
 119         --au=*|--aut=*|--auth=*|--autho=*|--author=*)
 120                 force_author=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 121                 shift
 122                 ;;
 123         --au|--aut|--auth|--autho|--author)
 124                 case "$#" in 1) usage ;; esac
 125                 shift
 126                 force_author="$1"
 127                 shift
 128                 ;;
 129         -e|--e|--ed|--edi|--edit)
 130                 edit_flag=t
 131                 shift
 132                 ;;
 133         -i|--i|--in|--inc|--incl|--inclu|--includ|--include)
 134                 also=t
 135                 shift
 136                 ;;
 137         --int|--inte|--inter|--intera|--interac|--interact|--interacti|\
 138         --interactiv|--interactive)
 139                 interactive=t
 140                 shift
 141                 ;;
 142         -o|--o|--on|--onl|--only)
 143                 only=t
 144                 shift
 145                 ;;
 146         -m|--m|--me|--mes|--mess|--messa|--messag|--message)
 147                 case "$#" in 1) usage ;; esac
 148                 shift
 149                 log_given=m$log_given
 150                 if test "$log_message" = ''
 151                 then
 152                     log_message="$1"
 153                 else
 154                     log_message="$log_message
 155
 156 $1"
 157                 fi
 158                 no_edit=t
 159                 shift
 160                 ;;
 161         -m*)
 162                 log_given=m$log_given
 163                 if test "$log_message" = ''
 164                 then
 165                     log_message=`expr "z$1" : 'z-m\(.*\)'`
 166                 else
 167                     log_message="$log_message
 168
 169 `expr "z$1" : 'z-m\(.*\)'`"
 170                 fi
 171                 no_edit=t
 172                 shift
 173                 ;;
 174         --m=*|--me=*|--mes=*|--mess=*|--messa=*|--messag=*|--message=*)
 175                 log_given=m$log_given
 176                 if test "$log_message" = ''
 177                 then
 178                     log_message=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 179                 else
 180                     log_message="$log_message
 181
 182 `expr "z$1" : 'zq-[^=]*=\(.*\)'`"
 183                 fi
 184                 no_edit=t
 185                 shift
 186                 ;;
 187         -n|--n|--no|--no-|--no-v|--no-ve|--no-ver|--no-veri|--no-verif|\
 188         --no-verify)
 189                 verify=
 190                 shift
 191                 ;;
 192         --a|--am|--ame|--amen|--amend)
 193                 amend=t
 194                 use_commit=HEAD
 195                 shift
 196                 ;;
 197         -c)
 198                 case "$#" in 1) usage ;; esac
 199                 shift
 200                 log_given=t$log_given
 201                 use_commit="$1"
 202                 no_edit=
 203                 shift
 204                 ;;
 205         --ree=*|--reed=*|--reedi=*|--reedit=*|--reedit-=*|--reedit-m=*|\
 206         --reedit-me=*|--reedit-mes=*|--reedit-mess=*|--reedit-messa=*|\
 207         --reedit-messag=*|--reedit-message=*)
 208                 log_given=t$log_given
 209                 use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 210                 no_edit=
 211                 shift
 212                 ;;
 213         --ree|--reed|--reedi|--reedit|--reedit-|--reedit-m|--reedit-me|\
 214         --reedit-mes|--reedit-mess|--reedit-messa|--reedit-messag|\
 215         --reedit-message)
 216                 case "$#" in 1) usage ;; esac
 217                 shift
 218                 log_given=t$log_given
 219                 use_commit="$1"
 220                 no_edit=
 221                 shift
 222                 ;;
 223         -C)
 224                 case "$#" in 1) usage ;; esac
 225                 shift
 226                 log_given=t$log_given
 227                 use_commit="$1"
 228                 no_edit=t
 229                 shift
 230                 ;;
 231         --reu=*|--reus=*|--reuse=*|--reuse-=*|--reuse-m=*|--reuse-me=*|\
 232         --reuse-mes=*|--reuse-mess=*|--reuse-messa=*|--reuse-messag=*|\
 233         --reuse-message=*)
 234                 log_given=t$log_given
 235                 use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
 236                 no_edit=t
 237                 shift
 238                 ;;
 239         --reu|--reus|--reuse|--reuse-|--reuse-m|--reuse-me|--reuse-mes|\
 240         --reuse-mess|--reuse-messa|--reuse-messag|--reuse-message)
 241                 case "$#" in 1) usage ;; esac
 242                 shift
 243                 log_given=t$log_given
 244                 use_commit="$1"
 245                 no_edit=t
 246                 shift
 247                 ;;
 248         -s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
 249                 signoff=t
 250                 shift
 251                 ;;
 252         -t|--t|--te|--tem|--temp|--templ|--templa|--templat|--template)
 253                 case "$#" in 1) usage ;; esac
 254                 shift
 255                 templatefile="$1"
 256                 no_edit=
 257                 shift
 258                 ;;
 259         -q|--q|--qu|--qui|--quie|--quiet)
 260                 quiet=t
 261                 shift
 262                 ;;
 263         -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
 264                 verbose=t
 265                 shift
 266                 ;;
 267         -u|--u|--un|--unt|--untr|--untra|--untrac|--untrack|--untracke|\
 268         --untracked|--untracked-|--untracked-f|--untracked-fi|--untracked-fil|\
 269         --untracked-file|--untracked-files)
 270                 untracked_files=t
 271                 shift
 272                 ;;
 273         --)
 274                 shift
 275                 break
 276                 ;;
 277         -*)
 278                 usage
 279                 ;;
 280         *)
 281                 break
 282                 ;;
 283         esac
 284 done
 285 case "$edit_flag" in t) no_edit= ;; esac
 286
 287 ################################################################
 288 # Sanity check options
 289
 290 case "$amend,$initial_commit" in
 291 t,t)
 292         die "You do not have anything to amend." ;;
 293 t,)
 294         if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
 295                 die "You are in the middle of a merge -- cannot amend."
 296         fi ;;
 297 esac
 298
 299 case "$log_given" in
 300 tt*)
 301         die "Only one of -c/-C/-F can be used." ;;
 302 *tm*|*mt*)
 303         die "Option -m cannot be combined with -c/-C/-F." ;;
 304 esac
 305
 306 case "$#,$also,$only,$amend" in
 307 *,t,t,*)
 308         die "Only one of --include/--only can be used." ;;
 309 0,t,,* | 0,,t,)
 310         die "No paths with --include/--only does not make sense." ;;
 311 0,,t,t)
 312         only_include_assumed="# Clever... amending the last one with dirty index." ;;
 313 0,,,*)
 314         ;;
 315 *,,,*)
 316         only_include_assumed="# Explicit paths specified without -i nor -o; assuming --only paths..."
 317         also=
 318         ;;
 319 esac
 320 unset only
 321 case "$all,$interactive,$also,$#" in
 322 *t,*t,*)
 323         die "Cannot use -a, --interactive or -i at the same time." ;;
 324 t,,[1-9]*)
 325         die "Paths with -a does not make sense." ;;
 326 ,t,[1-9]*)
 327         die "Paths with --interactive does not make sense." ;;
 328 ,,t,0)
 329         die "No paths with -i does not make sense." ;;
 330 esac
 331
 332 if test ! -z "$templatefile" -a -z "$log_given"
 333 then
 334         if test ! -f "$templatefile"
 335         then
 336                 die "Commit template file does not exist."
 337         fi
 338 fi
 339
 340 ################################################################
 341 # Prepare index to have a tree to be committed
 342
 343 case "$all,$also" in
 344 t,)
 345         if test ! -f "$THIS_INDEX"
 346         then
 347                 die 'nothing to commit (use "git add file1 file2" to include for commit)'
 348         fi
 349         save_index &&
 350         (
 351                 cd_to_toplevel &&
 352                 GIT_INDEX_FILE="$NEXT_INDEX" &&
 353                 export GIT_INDEX_FILE &&
 354                 git diff-files --name-only -z |
 355                 git update-index --remove -z --stdin
 356         ) || exit
 357         ;;
 358 ,t)
 359         save_index &&
 360         git ls-files --error-unmatch -- "$@" >/dev/null || exit
 361
 362         git diff-files --name-only -z -- "$@"  |
 363         (
 364                 cd_to_toplevel &&
 365                 GIT_INDEX_FILE="$NEXT_INDEX" &&
 366                 export GIT_INDEX_FILE &&
 367                 git update-index --remove -z --stdin
 368         ) || exit
 369         ;;
 370 ,)
 371         if test "$interactive" = t; then
 372                 git add --interactive || exit
 373         fi
 374         case "$#" in
 375         0)
 376                 ;; # commit as-is
 377         *)
 378                 if test -f "$GIT_DIR/MERGE_HEAD"
 379                 then
 380                         refuse_partial "Cannot do a partial commit during a merge."
 381                 fi
 382                 TMP_INDEX="$GIT_DIR/tmp-index$$"
 383                 commit_only=`git ls-files --error-unmatch -- "$@"` || exit
 384
 385                 # Build a temporary index and update the real index
 386                 # the same way.
 387                 if test -z "$initial_commit"
 388                 then
 389                         GIT_INDEX_FILE="$THIS_INDEX" \
 390                         git read-tree --index-output="$TMP_INDEX" -i -m HEAD
 391                 else
 392                         rm -f "$TMP_INDEX"
 393                 fi || exit
 394
 395                 printf '%s\n' "$commit_only" |
 396                 GIT_INDEX_FILE="$TMP_INDEX" \
 397                 git update-index --add --remove --stdin &&
 398
 399                 save_index &&
 400                 printf '%s\n' "$commit_only" |
 401                 (
 402                         GIT_INDEX_FILE="$NEXT_INDEX"
 403                         export GIT_INDEX_FILE
 404                         git update-index --remove --stdin
 405                 ) || exit
 406                 ;;
 407         esac
 408         ;;
 409 esac
 410
 411 ################################################################
 412 # If we do as-is commit, the index file will be THIS_INDEX,
 413 # otherwise NEXT_INDEX after we make this commit.  We leave
 414 # the index as is if we abort.
 415
 416 if test -f "$NEXT_INDEX"
 417 then
 418         USE_INDEX="$NEXT_INDEX"
 419 else
 420         USE_INDEX="$THIS_INDEX"
 421 fi
 422
 423 case "$status_only" in
 424 t)
 425         # This will silently fail in a read-only repository, which is
 426         # what we want.
 427         GIT_INDEX_FILE="$USE_INDEX" git update-index -q --unmerged --refresh
 428         run_status
 429         exit $?
 430         ;;
 431 '')
 432         GIT_INDEX_FILE="$USE_INDEX" git update-index -q --refresh || exit
 433         ;;
 434 esac
 435
 436 ################################################################
 437 # Grab commit message, write out tree and make commit.
 438
 439 if test t = "$verify" && test -x "$GIT_DIR"/hooks/pre-commit
 440 then
 441         if test "$TMP_INDEX"
 442         then
 443                 GIT_INDEX_FILE="$TMP_INDEX" "$GIT_DIR"/hooks/pre-commit
 444         else
 445                 GIT_INDEX_FILE="$USE_INDEX" "$GIT_DIR"/hooks/pre-commit
 446         fi || exit
 447 fi
 448
 449 if test "$log_message" != ''
 450 then
 451         printf '%s\n' "$log_message"
 452 elif test "$logfile" != ""
 453 then
 454         if test "$logfile" = -
 455         then
 456                 test -t 0 &&
 457                 echo >&2 "(reading log message from standard input)"
 458                 cat
 459         else
 460                 cat <"$logfile"
 461         fi
 462 elif test "$use_commit" != ""
 463 then
 464         encoding=$(git config i18n.commitencoding || echo UTF-8)
 465         git show -s --pretty=raw --encoding="$encoding" "$use_commit" |
 466         sed -e '1,/^$/d' -e 's/^    //'
 467 elif test -f "$GIT_DIR/MERGE_MSG"
 468 then
 469         cat "$GIT_DIR/MERGE_MSG"
 470 elif test -f "$GIT_DIR/SQUASH_MSG"
 471 then
 472         cat "$GIT_DIR/SQUASH_MSG"
 473 elif test "$templatefile" != ""
 474 then
 475         cat "$templatefile"
 476 fi | git stripspace >"$GIT_DIR"/COMMIT_EDITMSG
 477
 478 case "$signoff" in
 479 t)
 480         sign=$(git-var GIT_COMMITTER_IDENT | sed -e '
 481                 s/>.*/>/
 482                 s/^/Signed-off-by: /
 483                 ')
 484         blank_before_signoff=
 485         tail -n 1 "$GIT_DIR"/COMMIT_EDITMSG |
 486         grep 'Signed-off-by:' >/dev/null || blank_before_signoff='
 487 '
 488         tail -n 1 "$GIT_DIR"/COMMIT_EDITMSG |
 489         grep "$sign"$ >/dev/null ||
 490         printf '%s%s\n' "$blank_before_signoff" "$sign" \
 491                 >>"$GIT_DIR"/COMMIT_EDITMSG
 492         ;;
 493 esac
 494
 495 if test -f "$GIT_DIR/MERGE_HEAD" && test -z "$no_edit"; then
 496         echo "#"
 497         echo "# It looks like you may be committing a MERGE."
 498         echo "# If this is not correct, please remove the file"
 499         printf '%s\n' "#        $GIT_DIR/MERGE_HEAD"
 500         echo "# and try again"
 501         echo "#"
 502 fi >>"$GIT_DIR"/COMMIT_EDITMSG
 503
 504 # Author
 505 if test '' != "$use_commit"
 506 then
 507         eval "$(get_author_ident_from_commit "$use_commit")"
 508         export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
 509 fi
 510 if test '' != "$force_author"
 511 then
 512         GIT_AUTHOR_NAME=`expr "z$force_author" : 'z\(.*[^ ]\) *<.*'` &&
 513         GIT_AUTHOR_EMAIL=`expr "z$force_author" : '.*\(<.*\)'` &&
 514         test '' != "$GIT_AUTHOR_NAME" &&
 515         test '' != "$GIT_AUTHOR_EMAIL" ||
 516         die "malformed --author parameter"
 517         export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
 518 fi
 519
 520 PARENTS="-p HEAD"
 521 if test -z "$initial_commit"
 522 then
 523         rloga='commit'
 524         if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
 525                 rloga='commit (merge)'
 526                 PARENTS="-p HEAD "`sed -e 's/^/-p /' "$GIT_DIR/MERGE_HEAD"`
 527         elif test -n "$amend"; then
 528                 rloga='commit (amend)'
 529                 PARENTS=$(git cat-file commit HEAD |
 530                         sed -n -e '/^$/q' -e 's/^parent /-p /p')
 531         fi
 532         current="$(git rev-parse --verify HEAD)"
 533 else
 534         if [ -z "$(git ls-files)" ]; then
 535                 echo >&2 'nothing to commit (use "git add file1 file2" to include for commit)'
 536                 exit 1
 537         fi
 538         PARENTS=""
 539         rloga='commit (initial)'
 540         current=''
 541 fi
 542 set_reflog_action "$rloga"
 543
 544 if test -z "$no_edit"
 545 then
 546         {
 547                 echo ""
 548                 echo "# Please enter the commit message for your changes."
 549                 echo "# (Comment lines starting with '#' will not be included)"
 550                 test -z "$only_include_assumed" || echo "$only_include_assumed"
 551                 run_status
 552         } >>"$GIT_DIR"/COMMIT_EDITMSG
 553 else
 554         # we need to check if there is anything to commit
 555         run_status >/dev/null
 556 fi
 557 if [ "$?" != "0" -a ! -f "$GIT_DIR/MERGE_HEAD" ]
 558 then
 559         rm -f "$GIT_DIR/COMMIT_EDITMSG" "$GIT_DIR/SQUASH_MSG"
 560         use_status_color=t
 561         run_status
 562         exit 1
 563 fi
 564
 565 case "$no_edit" in
 566 '')
 567         git-var GIT_AUTHOR_IDENT > /dev/null  || die
 568         git-var GIT_COMMITTER_IDENT > /dev/null  || die
 569         git_editor "$GIT_DIR/COMMIT_EDITMSG"
 570         ;;
 571 esac
 572
 573 case "$verify" in
 574 t)
 575         if test -x "$GIT_DIR"/hooks/commit-msg
 576         then
 577                 "$GIT_DIR"/hooks/commit-msg "$GIT_DIR"/COMMIT_EDITMSG || exit
 578         fi
 579 esac
 580
 581 if test -z "$no_edit"
 582 then
 583     sed -e '
 584         /^diff --git a\/.*/{
 585             s///
 586             q
 587         }
 588         /^#/d
 589     ' "$GIT_DIR"/COMMIT_EDITMSG
 590 else
 591     cat "$GIT_DIR"/COMMIT_EDITMSG
 592 fi |
 593 git stripspace >"$GIT_DIR"/COMMIT_MSG
 594
 595 # Test whether the commit message has any content we didn't supply.
 596 have_commitmsg=
 597 grep -v -i '^Signed-off-by' "$GIT_DIR"/COMMIT_MSG |
 598         git stripspace > "$GIT_DIR"/COMMIT_BAREMSG
 599
 600 # Is the commit message totally empty?
 601 if test -s "$GIT_DIR"/COMMIT_BAREMSG
 602 then
 603         if test "$templatefile" != ""
 604         then
 605                 # Test whether this is just the unaltered template.
 606                 if cnt=`sed -e '/^#/d' < "$templatefile" |
 607                         git stripspace |
 608                         diff "$GIT_DIR"/COMMIT_BAREMSG - |
 609                         wc -l` &&
 610                    test 0 -lt $cnt
 611                 then
 612                         have_commitmsg=t
 613                 fi
 614         else
 615                 # No template, so the content in the commit message must
 616                 # have come from the user.
 617                 have_commitmsg=t
 618         fi
 619 fi
 620
 621 rm -f "$GIT_DIR"/COMMIT_BAREMSG
 622
 623 if test "$have_commitmsg" = "t"
 624 then
 625         if test -z "$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 "$TMP_INDEX"
 631         fi &&
 632         commit=$(git commit-tree $tree $PARENTS <"$GIT_DIR/COMMIT_MSG") &&
 633         rlogm=$(sed -e 1q "$GIT_DIR"/COMMIT_MSG) &&
 634         git update-ref -m "$GIT_REFLOG_ACTION: $rlogm" HEAD $commit "$current" &&
 635         rm -f -- "$GIT_DIR/MERGE_HEAD" "$GIT_DIR/MERGE_MSG" &&
 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" "$GIT_DIR/SQUASH_MSG"
 648
 649 cd_to_toplevel
 650
 651 git rerere
 652
 653 if test "$ret" = 0
 654 then
 655         if test -x "$GIT_DIR"/hooks/post-commit
 656         then
 657                 "$GIT_DIR"/hooks/post-commit
 658         fi
 659         if test -z "$quiet"
 660         then
 661                 commit=`git diff-tree --always --shortstat --pretty="format:%h: %s"\
 662                        --summary --root HEAD --`
 663                 echo "Created${initial_commit:+ initial} commit $commit"
 664         fi
 665 fi
 666
 667 exit "$ret"