sha1_file.c: Round the mmap offset to half the window size.
[gitweb.git] / git-commit.sh
index 6f6cbda8984e51daba7aae582036b4f821eae51b..ec506d956fa2858897c53b35d28db8083b7fdcec 100755 (executable)
@@ -3,12 +3,12 @@
 # Copyright (c) 2005 Linus Torvalds
 # Copyright (c) 2006 Junio C Hamano
 
-USAGE='[-a] [-s] [-v] [--no-verify] [-m <message> | -F <logfile> | (-C|-c) <commit>] [-u] [--amend] [-e] [--author <author>] [[-i | -o] <path>...]'
+USAGE='[-a] [-s] [-v] [--no-verify] [-m <message> | -F <logfile> | (-C|-c) <commit> | --amend] [-u] [-e] [--author <author>] [[-i | -o] <path>...]'
 SUBDIRECTORY_OK=Yes
 . git-sh-setup
+require_work_tree
 
 git-rev-parse --verify HEAD >/dev/null 2>&1 || initial_commit=t
-branch=$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD)
 
 case "$0" in
 *status)
@@ -41,21 +41,21 @@ run_status () {
        # so the regular index file is what we use to compare.
        if test '' != "$TMP_INDEX"
        then
-           GIT_INDEX_FILE="$TMP_INDEX"
-           export GIT_INDEX_FILE
+               GIT_INDEX_FILE="$TMP_INDEX"
+               export GIT_INDEX_FILE
        elif test -f "$NEXT_INDEX"
        then
-           GIT_INDEX_FILE="$NEXT_INDEX"
-           export GIT_INDEX_FILE
+               GIT_INDEX_FILE="$NEXT_INDEX"
+               export GIT_INDEX_FILE
        fi
 
-  case "$status_only" in
-    t) color= ;;
-    *) color=--nocolor ;;
-  esac
-  git-runstatus ${color} \
-                ${verbose:+--verbose} \
-                ${amend:+--amend} \
+       case "$status_only" in
+       t) color= ;;
+       *) color=--nocolor ;;
+       esac
+       git-runstatus ${color} \
+               ${verbose:+--verbose} \
+               ${amend:+--amend} \
                ${untracked_files:+--untracked}
 }
 
@@ -80,6 +80,7 @@ no_edit=
 log_given=
 log_message=
 verify=t
+quiet=
 verbose=
 signoff=
 force_author=
@@ -87,179 +88,185 @@ only_include_assumed=
 untracked_files=
 while case "$#" in 0) break;; esac
 do
-  case "$1" in
-  -F|--F|-f|--f|--fi|--fil|--file)
-      case "$#" in 1) usage ;; esac
-      shift
-      no_edit=t
-      log_given=t$log_given
-      logfile="$1"
-      shift
-      ;;
-  -F*|-f*)
-      no_edit=t
-      log_given=t$log_given
-      logfile=`expr "z$1" : 'z-[Ff]\(.*\)'`
-      shift
-      ;;
-  --F=*|--f=*|--fi=*|--fil=*|--file=*)
-      no_edit=t
-      log_given=t$log_given
-      logfile=`expr "z$1" : 'z-[^=]*=\(.*\)'`
-      shift
-      ;;
-  -a|--a|--al|--all)
-      all=t
-      shift
-      ;;
-  --au=*|--aut=*|--auth=*|--autho=*|--author=*)
-      force_author=`expr "z$1" : 'z-[^=]*=\(.*\)'`
-      shift
-      ;;
-  --au|--aut|--auth|--autho|--author)
-      case "$#" in 1) usage ;; esac
-      shift
-      force_author="$1"
-      shift
-      ;;
-  -e|--e|--ed|--edi|--edit)
-      edit_flag=t
-      shift
-      ;;
-  -i|--i|--in|--inc|--incl|--inclu|--includ|--include)
-      also=t
-      shift
-      ;;
-  -o|--o|--on|--onl|--only)
-      only=t
-      shift
-      ;;
-  -m|--m|--me|--mes|--mess|--messa|--messag|--message)
-      case "$#" in 1) usage ;; esac
-      shift
-      log_given=m$log_given
-      if test "$log_message" = ''
-      then
-          log_message="$1"
-      else
-          log_message="$log_message
+       case "$1" in
+       -F|--F|-f|--f|--fi|--fil|--file)
+               case "$#" in 1) usage ;; esac
+               shift
+               no_edit=t
+               log_given=t$log_given
+               logfile="$1"
+               shift
+               ;;
+       -F*|-f*)
+               no_edit=t
+               log_given=t$log_given
+               logfile=`expr "z$1" : 'z-[Ff]\(.*\)'`
+               shift
+               ;;
+       --F=*|--f=*|--fi=*|--fil=*|--file=*)
+               no_edit=t
+               log_given=t$log_given
+               logfile=`expr "z$1" : 'z-[^=]*=\(.*\)'`
+               shift
+               ;;
+       -a|--a|--al|--all)
+               all=t
+               shift
+               ;;
+       --au=*|--aut=*|--auth=*|--autho=*|--author=*)
+               force_author=`expr "z$1" : 'z-[^=]*=\(.*\)'`
+               shift
+               ;;
+       --au|--aut|--auth|--autho|--author)
+               case "$#" in 1) usage ;; esac
+               shift
+               force_author="$1"
+               shift
+               ;;
+       -e|--e|--ed|--edi|--edit)
+               edit_flag=t
+               shift
+               ;;
+       -i|--i|--in|--inc|--incl|--inclu|--includ|--include)
+               also=t
+               shift
+               ;;
+       -o|--o|--on|--onl|--only)
+               only=t
+               shift
+               ;;
+       -m|--m|--me|--mes|--mess|--messa|--messag|--message)
+               case "$#" in 1) usage ;; esac
+               shift
+               log_given=m$log_given
+               if test "$log_message" = ''
+               then
+                   log_message="$1"
+               else
+                   log_message="$log_message
 
 $1"
-      fi
-      no_edit=t
-      shift
-      ;;
-  -m*)
-      log_given=m$log_given
-      if test "$log_message" = ''
-      then
-          log_message=`expr "z$1" : 'z-m\(.*\)'`
-      else
-          log_message="$log_message
+               fi
+               no_edit=t
+               shift
+               ;;
+       -m*)
+               log_given=m$log_given
+               if test "$log_message" = ''
+               then
+                   log_message=`expr "z$1" : 'z-m\(.*\)'`
+               else
+                   log_message="$log_message
 
 `expr "z$1" : 'z-m\(.*\)'`"
-      fi
-      no_edit=t
-      shift
-      ;;
-  --m=*|--me=*|--mes=*|--mess=*|--messa=*|--messag=*|--message=*)
-      log_given=m$log_given
-      if test "$log_message" = ''
-      then
-          log_message=`expr "z$1" : 'z-[^=]*=\(.*\)'`
-      else
-          log_message="$log_message
+               fi
+               no_edit=t
+               shift
+               ;;
+       --m=*|--me=*|--mes=*|--mess=*|--messa=*|--messag=*|--message=*)
+               log_given=m$log_given
+               if test "$log_message" = ''
+               then
+                   log_message=`expr "z$1" : 'z-[^=]*=\(.*\)'`
+               else
+                   log_message="$log_message
 
 `expr "z$1" : 'zq-[^=]*=\(.*\)'`"
-      fi
-      no_edit=t
-      shift
-      ;;
-  -n|--n|--no|--no-|--no-v|--no-ve|--no-ver|--no-veri|--no-verif|--no-verify)
-      verify=
-      shift
-      ;;
-  --a|--am|--ame|--amen|--amend)
-      amend=t
-      log_given=t$log_given
-      use_commit=HEAD
-      shift
-      ;;
-  -c)
-      case "$#" in 1) usage ;; esac
-      shift
-      log_given=t$log_given
-      use_commit="$1"
-      no_edit=
-      shift
-      ;;
-  --ree=*|--reed=*|--reedi=*|--reedit=*|--reedit-=*|--reedit-m=*|\
-  --reedit-me=*|--reedit-mes=*|--reedit-mess=*|--reedit-messa=*|\
-  --reedit-messag=*|--reedit-message=*)
-      log_given=t$log_given
-      use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
-      no_edit=
-      shift
-      ;;
-  --ree|--reed|--reedi|--reedit|--reedit-|--reedit-m|--reedit-me|\
-  --reedit-mes|--reedit-mess|--reedit-messa|--reedit-messag|--reedit-message)
-      case "$#" in 1) usage ;; esac
-      shift
-      log_given=t$log_given
-      use_commit="$1"
-      no_edit=
-      shift
-      ;;
-  -C)
-      case "$#" in 1) usage ;; esac
-      shift
-      log_given=t$log_given
-      use_commit="$1"
-      no_edit=t
-      shift
-      ;;
-  --reu=*|--reus=*|--reuse=*|--reuse-=*|--reuse-m=*|--reuse-me=*|\
-  --reuse-mes=*|--reuse-mess=*|--reuse-messa=*|--reuse-messag=*|\
-  --reuse-message=*)
-      log_given=t$log_given
-      use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
-      no_edit=t
-      shift
-      ;;
-  --reu|--reus|--reuse|--reuse-|--reuse-m|--reuse-me|--reuse-mes|\
-  --reuse-mess|--reuse-messa|--reuse-messag|--reuse-message)
-      case "$#" in 1) usage ;; esac
-      shift
-      log_given=t$log_given
-      use_commit="$1"
-      no_edit=t
-      shift
-      ;;
-  -s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
-      signoff=t
-      shift
-      ;;
-  -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
-      verbose=t
-      shift
-      ;;
-  -u|--u|--un|--unt|--untr|--untra|--untrac|--untrack|--untracke|--untracked|\
-  --untracked-|--untracked-f|--untracked-fi|--untracked-fil|--untracked-file|\
-  --untracked-files)
-      untracked_files=t
-      shift
-      ;;
-  --)
-      shift
-      break
-      ;;
-  -*)
-      usage
-      ;;
-  *)
-      break
-      ;;
-  esac
+               fi
+               no_edit=t
+               shift
+               ;;
+       -n|--n|--no|--no-|--no-v|--no-ve|--no-ver|--no-veri|--no-verif|\
+       --no-verify)
+               verify=
+               shift
+               ;;
+       --a|--am|--ame|--amen|--amend)
+               amend=t
+               log_given=t$log_given
+               use_commit=HEAD
+               shift
+               ;;
+       -c)
+               case "$#" in 1) usage ;; esac
+               shift
+               log_given=t$log_given
+               use_commit="$1"
+               no_edit=
+               shift
+               ;;
+       --ree=*|--reed=*|--reedi=*|--reedit=*|--reedit-=*|--reedit-m=*|\
+       --reedit-me=*|--reedit-mes=*|--reedit-mess=*|--reedit-messa=*|\
+       --reedit-messag=*|--reedit-message=*)
+               log_given=t$log_given
+               use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
+               no_edit=
+               shift
+               ;;
+       --ree|--reed|--reedi|--reedit|--reedit-|--reedit-m|--reedit-me|\
+       --reedit-mes|--reedit-mess|--reedit-messa|--reedit-messag|\
+       --reedit-message)
+               case "$#" in 1) usage ;; esac
+               shift
+               log_given=t$log_given
+               use_commit="$1"
+               no_edit=
+               shift
+               ;;
+       -C)
+               case "$#" in 1) usage ;; esac
+               shift
+               log_given=t$log_given
+               use_commit="$1"
+               no_edit=t
+               shift
+               ;;
+       --reu=*|--reus=*|--reuse=*|--reuse-=*|--reuse-m=*|--reuse-me=*|\
+       --reuse-mes=*|--reuse-mess=*|--reuse-messa=*|--reuse-messag=*|\
+       --reuse-message=*)
+               log_given=t$log_given
+               use_commit=`expr "z$1" : 'z-[^=]*=\(.*\)'`
+               no_edit=t
+               shift
+               ;;
+       --reu|--reus|--reuse|--reuse-|--reuse-m|--reuse-me|--reuse-mes|\
+       --reuse-mess|--reuse-messa|--reuse-messag|--reuse-message)
+               case "$#" in 1) usage ;; esac
+               shift
+               log_given=t$log_given
+               use_commit="$1"
+               no_edit=t
+               shift
+               ;;
+       -s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
+               signoff=t
+               shift
+               ;;
+       -q|--q|--qu|--qui|--quie|--quiet)
+               quiet=t
+               shift
+               ;;
+       -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
+               verbose=t
+               shift
+               ;;
+       -u|--u|--un|--unt|--untr|--untra|--untrac|--untrack|--untracke|\
+       --untracked|--untracked-|--untracked-f|--untracked-fi|--untracked-fil|\
+       --untracked-file|--untracked-files)
+               untracked_files=t
+               shift
+               ;;
+       --)
+               shift
+               break
+               ;;
+       -*)
+               usage
+               ;;
+       *)
+               break
+               ;;
+       esac
 done
 case "$edit_flag" in t) no_edit= ;; esac
 
@@ -268,33 +275,33 @@ case "$edit_flag" in t) no_edit= ;; esac
 
 case "$amend,$initial_commit" in
 t,t)
-  die "You do not have anything to amend." ;;
+       die "You do not have anything to amend." ;;
 t,)
-  if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
-    die "You are in the middle of a merge -- cannot amend."
-  fi ;;
+       if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
+               die "You are in the middle of a merge -- cannot amend."
+       fi ;;
 esac
 
 case "$log_given" in
 tt*)
-  die "Only one of -c/-C/-F can be used." ;;
+       die "Only one of -c/-C/-F/--amend can be used." ;;
 *tm*|*mt*)
-  die "Option -m cannot be combined with -c/-C/-F." ;;
+       die "Option -m cannot be combined with -c/-C/-F/--amend." ;;
 esac
 
 case "$#,$also,$only,$amend" in
 *,t,t,*)
-  die "Only one of --include/--only can be used." ;;
+       die "Only one of --include/--only can be used." ;;
 0,t,,* | 0,,t,)
-  die "No paths with --include/--only does not make sense." ;;
+       die "No paths with --include/--only does not make sense." ;;
 0,,t,t)
-  only_include_assumed="# Clever... amending the last one with dirty index." ;;
+       only_include_assumed="# Clever... amending the last one with dirty index." ;;
 0,,,*)
-  ;;
+       ;;
 *,,,*)
-  only_include_assumed="# Explicit paths specified without -i nor -o; assuming --only paths..."
-  also=
-  ;;
+       only_include_assumed="# Explicit paths specified without -i nor -o; assuming --only paths..."
+       also=
+       ;;
 esac
 unset only
 case "$all,$also,$#" in
@@ -309,22 +316,16 @@ esac
 ################################################################
 # Prepare index to have a tree to be committed
 
-TOP=`git-rev-parse --show-cdup`
-if test -z "$TOP"
-then
-       TOP=./
-fi
-
 case "$all,$also" in
 t,)
        save_index &&
        (
-               cd "$TOP"
-               GIT_INDEX_FILE="$NEXT_INDEX"
-               export GIT_INDEX_FILE
+               cd_to_toplevel &&
+               GIT_INDEX_FILE="$NEXT_INDEX" &&
+               export GIT_INDEX_FILE &&
                git-diff-files --name-only -z |
                git-update-index --remove -z --stdin
-       )
+       ) || exit
        ;;
 ,t)
        save_index &&
@@ -332,56 +333,46 @@ t,)
 
        git-diff-files --name-only -z -- "$@"  |
        (
-               cd "$TOP"
-               GIT_INDEX_FILE="$NEXT_INDEX"
-               export GIT_INDEX_FILE
+               cd_to_toplevel &&
+               GIT_INDEX_FILE="$NEXT_INDEX" &&
+               export GIT_INDEX_FILE &&
                git-update-index --remove -z --stdin
-       )
+       ) || exit
        ;;
 ,)
        case "$#" in
        0)
-           ;; # commit as-is
+               ;; # commit as-is
        *)
-           if test -f "$GIT_DIR/MERGE_HEAD"
-           then
-               refuse_partial "Cannot do a partial commit during a merge."
-           fi
-           TMP_INDEX="$GIT_DIR/tmp-index$$"
-           if test -z "$initial_commit"
-           then
-               # make sure index is clean at the specified paths, or
-               # they are additions.
-               dirty_in_index=`git-diff-index --cached --name-status \
-                       --diff-filter=DMTU HEAD -- "$@"`
-               test -z "$dirty_in_index" ||
-               refuse_partial "Different in index and the last commit:
-$dirty_in_index"
-           fi
-           commit_only=`git-ls-files --error-unmatch -- "$@"` || exit
-
-           # Build the temporary index and update the real index
-           # the same way.
-           if test -z "$initial_commit"
-           then
-               cp "$THIS_INDEX" "$TMP_INDEX"
-               GIT_INDEX_FILE="$TMP_INDEX" git-read-tree -m HEAD
-           else
-                   rm -f "$TMP_INDEX"
-           fi || exit
-
-           echo "$commit_only" |
-           GIT_INDEX_FILE="$TMP_INDEX" \
-           git-update-index --add --remove --stdin &&
-
-           save_index &&
-           echo "$commit_only" |
-           (
-               GIT_INDEX_FILE="$NEXT_INDEX"
-               export GIT_INDEX_FILE
-               git-update-index --remove --stdin
-           ) || exit
-           ;;
+               if test -f "$GIT_DIR/MERGE_HEAD"
+               then
+                       refuse_partial "Cannot do a partial commit during a merge."
+               fi
+               TMP_INDEX="$GIT_DIR/tmp-index$$"
+               commit_only=`git-ls-files --error-unmatch -- "$@"` || exit
+
+               # Build a temporary index and update the real index
+               # the same way.
+               if test -z "$initial_commit"
+               then
+                       cp "$THIS_INDEX" "$TMP_INDEX"
+                       GIT_INDEX_FILE="$TMP_INDEX" git-read-tree -m HEAD
+               else
+                       rm -f "$TMP_INDEX"
+               fi || exit
+
+               echo "$commit_only" |
+               GIT_INDEX_FILE="$TMP_INDEX" \
+               git-update-index --add --remove --stdin &&
+
+               save_index &&
+               echo "$commit_only" |
+               (
+                       GIT_INDEX_FILE="$NEXT_INDEX"
+                       export GIT_INDEX_FILE
+                       git-update-index --remove --stdin
+               ) || exit
+               ;;
        esac
        ;;
 esac
@@ -399,7 +390,7 @@ else
 fi
 
 GIT_INDEX_FILE="$USE_INDEX" \
-    git-update-index -q $unmerged_ok_if_status --refresh || exit
+       git-update-index -q $unmerged_ok_if_status --refresh || exit
 
 ################################################################
 # If the request is status, just show it and exit.
@@ -438,8 +429,10 @@ then
        fi
 elif test "$use_commit" != ""
 then
-       git-cat-file commit "$use_commit" | sed -e '1,/^$/d'
-elif test -f "$GIT_DIR/MERGE_HEAD" && test -f "$GIT_DIR/MERGE_MSG"
+       encoding=$(git config i18n.commitencoding || echo UTF-8)
+       git show -s --pretty=raw --encoding="$encoding" "$use_commit" |
+       sed -e '1,/^$/d' -e 's/^    //'
+elif test -f "$GIT_DIR/MERGE_MSG"
 then
        cat "$GIT_DIR/MERGE_MSG"
 elif test -f "$GIT_DIR/SQUASH_MSG"
@@ -449,8 +442,11 @@ fi | git-stripspace >"$GIT_DIR"/COMMIT_EDITMSG
 
 case "$signoff" in
 t)
+       need_blank_before_signoff=
+       tail -n 1 "$GIT_DIR"/COMMIT_EDITMSG |
+       grep 'Signed-off-by:' >/dev/null || need_blank_before_signoff=yes
        {
-               echo
+               test -z "$need_blank_before_signoff" || echo
                git-var GIT_COMMITTER_IDENT | sed -e '
                        s/>.*/>/
                        s/^/Signed-off-by: /
@@ -469,15 +465,7 @@ if test -f "$GIT_DIR/MERGE_HEAD" && test -z "$no_edit"; then
 fi >>"$GIT_DIR"/COMMIT_EDITMSG
 
 # Author
-if test '' != "$force_author"
-then
-       GIT_AUTHOR_NAME=`expr "z$force_author" : 'z\(.*[^ ]\) *<.*'` &&
-       GIT_AUTHOR_EMAIL=`expr "z$force_author" : '.*\(<.*\)'` &&
-       test '' != "$GIT_AUTHOR_NAME" &&
-       test '' != "$GIT_AUTHOR_EMAIL" ||
-       die "malformed --author parameter"
-       export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
-elif test '' != "$use_commit"
+if test '' != "$use_commit"
 then
        pick_author_script='
        /^author /{
@@ -500,13 +488,23 @@ then
                q
        }
        '
-       set_author_env=`git-cat-file commit "$use_commit" |
+       encoding=$(git config i18n.commitencoding || echo UTF-8)
+       set_author_env=`git show -s --pretty=raw --encoding="$encoding" "$use_commit" |
        LANG=C LC_ALL=C sed -ne "$pick_author_script"`
        eval "$set_author_env"
        export GIT_AUTHOR_NAME
        export GIT_AUTHOR_EMAIL
        export GIT_AUTHOR_DATE
 fi
+if test '' != "$force_author"
+then
+       GIT_AUTHOR_NAME=`expr "z$force_author" : 'z\(.*[^ ]\) *<.*'` &&
+       GIT_AUTHOR_EMAIL=`expr "z$force_author" : '.*\(<.*\)'` &&
+       test '' != "$GIT_AUTHOR_NAME" &&
+       test '' != "$GIT_AUTHOR_EMAIL" ||
+       die "malformed --author parameter"
+       export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
+fi
 
 PARENTS="-p HEAD"
 if test -z "$initial_commit"
@@ -520,16 +518,17 @@ then
                PARENTS=$(git-cat-file commit HEAD |
                        sed -n -e '/^$/q' -e 's/^parent /-p /p')
        fi
-       current=$(git-rev-parse --verify HEAD)
+       current="$(git-rev-parse --verify HEAD)"
 else
        if [ -z "$(git-ls-files)" ]; then
-               echo >&2 Nothing to commit
+               echo >&2 'nothing to commit (use "git add file1 file2" to include for commit)'
                exit 1
        fi
        PARENTS=""
-       current=
        rloga='commit (initial)'
+       current=''
 fi
+set_reflog_action "$rloga"
 
 if test -z "$no_edit"
 then
@@ -604,8 +603,8 @@ then
        fi &&
        commit=$(cat "$GIT_DIR"/COMMIT_MSG | git-commit-tree $tree $PARENTS) &&
        rlogm=$(sed -e 1q "$GIT_DIR"/COMMIT_MSG) &&
-       git-update-ref -m "$rloga: $rlogm" HEAD $commit $current &&
-       rm -f -- "$GIT_DIR/MERGE_HEAD" &&
+       git-update-ref -m "$GIT_REFLOG_ACTION: $rlogm" HEAD $commit "$current" &&
+       rm -f -- "$GIT_DIR/MERGE_HEAD" "$GIT_DIR/MERGE_MSG" &&
        if test -f "$NEXT_INDEX"
        then
                mv "$NEXT_INDEX" "$THIS_INDEX"
@@ -623,8 +622,17 @@ then
        git-rerere
 fi
 
-if test -x "$GIT_DIR"/hooks/post-commit && test "$ret" = 0
+if test "$ret" = 0
 then
-       "$GIT_DIR"/hooks/post-commit
+       if test -x "$GIT_DIR"/hooks/post-commit
+       then
+               "$GIT_DIR"/hooks/post-commit
+       fi
+       if test -z "$quiet"
+       then
+               echo "Created${initial_commit:+ initial} commit $commit"
+               git-diff-tree --shortstat --summary --root --no-commit-id HEAD --
+       fi
 fi
+
 exit "$ret"