git-tar-tree: no more void pointer arithmetic
[git.git] / git-commit.sh
index e6793bd..6dd04fd 100755 (executable)
@@ -3,7 +3,7 @@
 # Copyright (c) 2005 Linus Torvalds
 # Copyright (c) 2006 Junio C Hamano
 
-USAGE='[-a] [-i] [-s] [-v] [--no-verify] [-m <message> | -F <logfile> | (-C|-c) <commit>] [-e] [--author <author>] [<path>...]'
+USAGE='[-a] [-s] [-v] [--no-verify] [-m <message> | -F <logfile> | (-C|-c) <commit>] [-u] [--amend] [-e] [--author <author>] [[-i | -o] <path>...]'
 SUBDIRECTORY_OK=Yes
 . git-sh-setup
 
@@ -64,6 +64,22 @@ run_status () {
        # We always show status for the whole tree.
        cd "$TOP"
 
+       IS_INITIAL="$initial_commit"
+       REFERENCE=HEAD
+       case "$amend" in
+       t)
+               # If we are amending the initial commit, there
+               # is no HEAD^1.
+               if git-rev-parse --verify "HEAD^1" >/dev/null 2>&1
+               then
+                       REFERENCE="HEAD^1"
+                       IS_INITIAL=
+               else
+                       IS_INITIAL=t
+               fi
+               ;;
+       esac
+
        # If TMP_INDEX is defined, that means we are doing
        # "--only" partial commit, and that index file is used
        # to build the tree for the commit.  Otherwise, if
@@ -85,26 +101,15 @@ run_status () {
        *)  echo "# On branch $branch" ;;
        esac
 
-       if test -z "$initial_commit"
+       if test -z "$IS_INITIAL"
        then
-           if test -z "$verbose"
-           then
-               git-diff-index -M --cached --name-status \
-                   --diff-filter=MDTCRA HEAD |
-               sed -e '
-                       s/\\/\\\\/g
-                       s/ /\\ /g
-               ' |
-               report "Updated but not checked in" "will commit"
-           else
-               if git-diff-index --cached -M -p --diff-filter=MDTCRA HEAD |
-                  grep .
-               then
-                  false
-               else
-                  true
-               fi
-           fi
+           git-diff-index -M --cached --name-status \
+               --diff-filter=MDTCRA $REFERENCE |
+           sed -e '
+                   s/\\/\\\\/g
+                   s/ /\\ /g
+           ' |
+           report "Updated but not checked in" "will commit"
            committable="$?"
        else
            echo '#
@@ -129,13 +134,17 @@ run_status () {
        report "Changed but not updated" \
            "use git-update-index to mark for commit"
 
+        option=""
+        if test -z "$untracked_files"; then
+            option="--directory --no-empty-directory"
+        fi
        if test -f "$GIT_DIR/info/exclude"
        then
-           git-ls-files -z --others --directory \
+           git-ls-files -z --others $option \
                --exclude-from="$GIT_DIR/info/exclude" \
                --exclude-per-directory=.gitignore
        else
-           git-ls-files -z --others --directory \
+           git-ls-files -z --others $option \
                --exclude-per-directory=.gitignore
        fi |
        perl -e '$/ = "\0";
@@ -155,10 +164,20 @@ run_status () {
                print "$_\n";
            }
        '
+
+       if test -n "$verbose" -a -z "$IS_INITIAL"
+       then
+           git-diff-index --cached -M -p --diff-filter=MDTCRA $REFERENCE
+       fi
        case "$committable" in
        0)
-           echo "nothing to commit"
-           exit 1
+               case "$amend" in
+               t)
+                       echo "# No changes" ;;
+               *)
+                       echo "nothing to commit" ;;
+               esac
+               exit 1 ;;
        esac
        exit 0
     )
@@ -179,6 +198,7 @@ also=
 only=
 logfile=
 use_commit=
+amend=
 no_edit=
 log_given=
 log_message=
@@ -186,6 +206,8 @@ verify=t
 verbose=
 signoff=
 force_author=
+only_include_assumed=
+untracked_files=
 while case "$#" in 0) break;; esac
 do
   case "$1" in
@@ -238,20 +260,41 @@ do
   -m|--m|--me|--mes|--mess|--messa|--messag|--message)
       case "$#" in 1) usage ;; esac
       shift
-      log_given=t$log_given
-      log_message="$1"
+      log_given=m$log_given
+      if test "$log_message" = ''
+      then
+          log_message="$1"
+      else
+          log_message="$log_message
+
+$1"
+      fi
       no_edit=t
       shift
       ;;
   -m*)
-      log_given=t$log_given
-      log_message=`expr "$1" : '-m\(.*\)'`
+      log_given=m$log_given
+      if test "$log_message" = ''
+      then
+          log_message=`expr "$1" : '-m\(.*\)'`
+      else
+          log_message="$log_message
+
+`expr "$1" : '-m\(.*\)'`"
+      fi
       no_edit=t
       shift
       ;;
   --m=*|--me=*|--mes=*|--mess=*|--messa=*|--messag=*|--message=*)
-      log_given=t$log_given
-      log_message=`expr "$1" : '-[^=]*=\(.*\)'`
+      log_given=m$log_given
+      if test "$log_message" = ''
+      then
+          log_message=`expr "$1" : '-[^=]*=\(.*\)'`
+      else
+          log_message="$log_message
+
+`expr "$1" : '-[^=]*=\(.*\)'`"
+      fi
       no_edit=t
       shift
       ;;
@@ -259,6 +302,12 @@ do
       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
@@ -317,6 +366,12 @@ do
       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
@@ -333,28 +388,34 @@ done
 ################################################################
 # Sanity check options
 
+case "$amend,$initial_commit" in
+t,t)
+  die "You do not have anything to amend." ;;
+t,)
+  if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
+    die "You are in the middle of a merge -- cannot amend."
+  fi ;;
+esac
+
 case "$log_given" in
 tt*)
-  die "Only one of -c/-C/-F/-m can be used." ;;
+  die "Only one of -c/-C/-F can be used." ;;
+*tm*|*mt*)
+  die "Option -m cannot be combined with -c/-C/-F." ;;
 esac
 
-case "$#,$also$only" in
-*,tt)
+case "$#,$also,$only,$amend" in
+*,t,t,*)
   die "Only one of --include/--only can be used." ;;
-0,t)
+0,t,,* | 0,,t,)
   die "No paths with --include/--only does not make sense." ;;
-0,)
+0,,t,t)
+  only_include_assumed="# Clever... amending the last one with dirty index." ;;
+0,,,*)
   ;;
-*,)
-  echo >&2 "assuming --include paths..."
-  also=t
-  # Later when switch the defaults, we will replace them with these:
-  # echo >&2 "assuming --only paths..."
-  # also=
-
-  # If we are going to launch an editor, the message won't be
-  # shown without this...
-  test -z "$log_given$status_only" && sleep 1
+*,,,*)
+  only_include_assumed="# Explicit paths specified without -i nor -o; assuming --only paths..."
+  also=
   ;;
 esac
 unset only
@@ -389,6 +450,8 @@ t,)
        ;;
 ,t)
        save_index &&
+       git-ls-files --error-unmatch -- "$@" >/dev/null || exit
+
        git-diff-files --name-only -z -- "$@"  |
        (
                cd "$TOP"
@@ -417,7 +480,7 @@ t,)
                refuse_partial "Different in index and the last commit:
 $dirty_in_index"
            fi
-           commit_only=`git-ls-files -- "$@"`
+           commit_only=`git-ls-files --error-unmatch -- "$@"` || exit
 
            # Build the temporary index and update the real index
            # the same way.
@@ -515,7 +578,7 @@ t)
        ;;
 esac
 
-if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
+if test -f "$GIT_DIR/MERGE_HEAD" && test -z "$no_edit"; then
        echo "#"
        echo "# It looks like you may be committing a MERGE."
        echo "# If this is not correct, please remove the file"
@@ -527,8 +590,8 @@ fi >>"$GIT_DIR"/COMMIT_EDITMSG
 # Author
 if test '' != "$force_author"
 then
-       GIT_AUTHOR_NAME=`expr "$force_author" : '\(.*[^ ]\) *<.*'` &&
-       GIT_AUTHOR_EMAIL=`expr "$force_author" : '.*\(<.*\)'` &&
+       GIT_AUTHOR_NAME=`expr "z$force_author" : 'z\(.*[^ ]\) *<.*'` &&
+       GIT_AUTHOR_EMAIL=`expr "z$force_author" : '.*\(<.*\)'` &&
        test '' != "$GIT_AUTHOR_NAME" &&
        test '' != "$GIT_AUTHOR_EMAIL" ||
        die "malformatted --author parameter"
@@ -569,25 +632,40 @@ if test -z "$initial_commit"
 then
        if [ -f "$GIT_DIR/MERGE_HEAD" ]; then
                PARENTS="-p HEAD "`sed -e 's/^/-p /' "$GIT_DIR/MERGE_HEAD"`
+       elif test -n "$amend"; then
+               PARENTS=$(git-cat-file commit HEAD |
+                       sed -n -e '/^$/q' -e 's/^parent /-p /p')
        fi
+       current=$(git-rev-parse --verify HEAD)
 else
        if [ -z "$(git-ls-files)" ]; then
                echo >&2 Nothing to commit
                exit 1
        fi
        PARENTS=""
+       current=
 fi
 
-{
-    test -z "$verbose" || echo '---'
-    run_status
-} >>"$GIT_DIR"/COMMIT_EDITMSG
-if [ "$?" != "0" -a ! -f "$GIT_DIR/MERGE_HEAD" ]
+if test -z "$no_edit"
+then
+       {
+               echo ""
+               echo "# Please enter the commit message for your changes."
+               echo "# (Comment lines starting with '#' will not be included)"
+               test -z "$only_include_assumed" || echo "$only_include_assumed"
+               run_status
+       } >>"$GIT_DIR"/COMMIT_EDITMSG
+else
+       # we need to check if there is anything to commit
+       run_status >/dev/null 
+fi
+if [ "$?" != "0" -a ! -f "$GIT_DIR/MERGE_HEAD" -a -z "$amend" ]
 then
        rm -f "$GIT_DIR/COMMIT_EDITMSG"
        run_status
        exit 1
 fi
+
 case "$no_edit" in
 '')
        case "${VISUAL:-$EDITOR},$TERM" in
@@ -599,6 +677,8 @@ case "$no_edit" in
                exit 1
                ;;
        esac
+       git-var GIT_AUTHOR_IDENT > /dev/null  || die
+       git-var GIT_COMMITTER_IDENT > /dev/null  || die
        ${VISUAL:-${EDITOR:-vi}} "$GIT_DIR/COMMIT_EDITMSG"
        ;;
 esac
@@ -612,11 +692,11 @@ t)
 esac
 
 sed -e '
-       /^---$/{
-               s///
-               q
-       }
-       /^#/d
+    /^diff --git a\/.*/{
+       s///
+       q
+    }
+    /^#/d
 ' "$GIT_DIR"/COMMIT_EDITMSG |
 git-stripspace >"$GIT_DIR"/COMMIT_MSG
 
@@ -633,7 +713,8 @@ then
                rm -f "$TMP_INDEX"
        fi &&
        commit=$(cat "$GIT_DIR"/COMMIT_MSG | git-commit-tree $tree $PARENTS) &&
-       git-update-ref HEAD $commit $current &&
+       rlogm=$(sed -e 1q "$GIT_DIR"/COMMIT_MSG) &&
+       git-update-ref -m "commit: $rlogm" HEAD $commit $current &&
        rm -f -- "$GIT_DIR/MERGE_HEAD" &&
        if test -f "$NEXT_INDEX"
        then
@@ -647,7 +728,10 @@ else
 fi
 ret="$?"
 rm -f "$GIT_DIR/COMMIT_MSG" "$GIT_DIR/COMMIT_EDITMSG"
-git-rerere
+if test -d "$GIT_DIR/rr-cache"
+then
+       git-rerere
+fi
 
 if test -x "$GIT_DIR"/hooks/post-commit && test "$ret" = 0
 then