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