Merge branch 'maint'

* maint:
  Update draft release notes for 1.5.0.1
  Convert update-index references in docs to add.
  Attempt to improve git-rebase lead-in description.
  Do not take mode bits from index after type change.
  git-blame: prevent argument parsing segfault
  Make gitk save and restore window pane position on Linux and Cygwin.
  Make gitk save and restore the user set window position.
  [PATCH] gitk: Use show-ref instead of ls-remote
  [PATCH] Make gitk work reasonably well on Cygwin.
  [PATCH] gitk - remove trailing whitespace from a few lines.
  Change git repo-config to git config

Documentation/RelNotes-1.5.0.1.txt

@@ -7,14 +7,31 @@ Fixes since v1.5.0
 * Documentation updates
 
   - Clarifications and corrections to 1.5.0 release notes.
+
   - The main documentation did not link to git-remote documentation.
 
+  - Clarified introductory text of git-rebase documentation.
+
+  - Converted remaining mentions of update-index on Porcelain
+    documents to git-add/git-rm.
+
 * Bugfixes
 
   - git-daemon marks the listening sockets with FD_CLOEXEC so
     that it won't be leaked into the children.
 
+  - segfault from git-blame when the mandatory pathname
+    parameter was missing was fixed; usage() message is given
+    instead.
+
+* Tweaks
+
+  - sliding mmap() inefficiently mmaped the same region of a
+    packfile with an access pattern that used objects in the
+    reverse order.  This has been made more efficient.
+
 --
-O=v1.5.0-7-g37b73cf
+exec >/var/tmp/1
+O=v1.5.0-24-g460ca30
 echo O=`git describe maint`
-git shortlog --no-merges $O..
+git shortlog --no-merges $O..maint

Documentation/core-intro.txt

@@ -106,7 +106,8 @@ directory tree, and renaming a file does not change the object that
 file is associated with in any way.
 
 A blob is typically created when gitlink:git-update-index[1]
-is run, and its data can be accessed by gitlink:git-cat-file[1].
+(or gitlink:git-add[1]) is run, and its data can be accessed by
+gitlink:git-cat-file[1].
 
 Tree Object
 ~~~~~~~~~~~

Documentation/git-checkout.txt

@@ -61,7 +61,8 @@ OPTIONS
 +
 When a merge conflict happens, the index entries for conflicting
 paths are left unmerged, and you need to resolve the conflicts
-and mark the resolved paths with `git update-index`.
+and mark the resolved paths with `git add` (or `git rm` if the merge
+should result in deletion of the path).
 
 <new_branch>::
 	Name for the new branch.
@@ -179,11 +180,11 @@ fatal: merge program failed
 At this point, `git diff` shows the changes cleanly merged as in
 the previous example, as well as the changes in the conflicted
 files.  Edit and resolve the conflict and mark it resolved with
-`git update-index` as usual:
+`git add` as usual:
 +
 ------------
 $ edit frotz
-$ git update-index frotz
+$ git add frotz
 ------------
 
 

Documentation/git-merge.txt

@@ -136,7 +136,7 @@ After seeing a conflict, you can do two things:
 
  * Resolve the conflicts.  `git-diff` would report only the
    conflicting paths because of the above 2. and 3..  Edit the
-   working tree files into a desirable shape, `git-update-index`
+   working tree files into a desirable shape, `git-add` or `git-rm`
    them, to make the index file contain what the merge result
    should be, and run `git-commit` to commit the result.
 

Documentation/git-rebase.txt

@@ -13,11 +13,20 @@ SYNOPSIS
 
 DESCRIPTION
 -----------
-git-rebase replaces <branch> with a new branch of the same name.  When
-the --onto option is provided the new branch starts out with a HEAD equal
-to <newbase>, otherwise it is equal to <upstream>.  It then attempts to
-create a new commit for each commit from the original <branch> that does
-not exist in the <upstream> branch.
+If <branch> is specified, git-rebase will perform an automatic
+`git checkout <branch>` before doing anything else.  Otherwise
+it remains on the current branch.
+
+All changes made by commits in the current branch but that are not
+in <upstream> are saved to a temporary area.  This is the same set
+of commits that would be shown by `git log <upstream>..HEAD`.
+
+The current branch is reset to <upstream>, or <newbase> if the
+--onto option was supplied.  This has the exact same effect as
+`git reset --hard <upstream>` (or <newbase>).
+
+The commits that were previously saved into the temporary area are
+then reapplied to the current branch, one by one, in order.
 
 It is possible that a merge failure will prevent this process from being
 completely automatic.  You will have to resolve any such merge failure
@@ -26,9 +35,6 @@ that caused the merge failure with `git rebase --skip`.  To restore the
 original <branch> and remove the .dotest working files, use the command
 `git rebase --abort` instead.
 
-Note that if <branch> is not specified on the command line, the currently
-checked out branch is used.
-
 Assume the following history exists and the current branch is "topic":
 
 ------------
@@ -142,7 +148,7 @@ file you edit, you need to tell git that the conflict has been resolved,
 typically this would be done with
 
 
-    git update-index <filename>
+    git add <filename>
 
 
 After resolving the conflict manually and updating the index with the

Documentation/git-rerere.txt

@@ -163,8 +163,7 @@ If this three-way merge resolves cleanly, the result is written
 out to your working tree file, so you would not have to manually
 resolve it.  Note that `git-rerere` leaves the index file alone,
 so you still need to do the final sanity checks with `git diff`
-(or `git diff -c`) and `git update-index` when you are
-satisfied.
+(or `git diff -c`) and `git add` when you are satisfied.
 
 As a convenience measure, `git-merge` automatically invokes
 `git-rerere` when it exits with a failed automerge, which

Documentation/git-reset.txt

@@ -94,11 +94,11 @@ current HEAD.
 <2> Rewind the master branch to get rid of those three commits.
 <3> Switch to "topic/wip" branch and keep working.
 
-Undo update-index::
+Undo add::
 +
 ------------
 $ edit                                     <1>
-$ git-update-index frotz.c filfre.c
+$ git add frotz.c filfre.c
 $ mailx                                    <2>
 $ git reset                                <3>
 $ git pull git://info.example.com/ nitfol  <4>

Documentation/git-runstatus.txt

@@ -16,7 +16,7 @@ DESCRIPTION
 Examines paths in the working tree that has changes unrecorded
 to the index file, and changes between the index file and the
 current HEAD commit.  The former paths are what you _could_
-commit by running 'git-update-index' before running 'git
+commit by running 'git add' (or 'git rm' if you are deleting) before running 'git
 commit', and the latter paths are what you _would_ commit by
 running 'git commit'.
 

Documentation/git-status.txt

@@ -15,7 +15,7 @@ DESCRIPTION
 Examines paths in the working tree that has changes unrecorded
 to the index file, and changes between the index file and the
 current HEAD commit.  The former paths are what you _could_
-commit by running 'git-update-index' before running 'git
+commit by running 'git add' before running 'git
 commit', and the latter paths are what you _would_ commit by
 running 'git commit'.
 

Documentation/tutorial-2.txt

@@ -227,7 +227,7 @@ $ git diff
 @@ -1 +1,2 @@
  hello world!
 +hello world, again
-$ git update-index file.txt
+$ git add file.txt
 $ git diff
 ------------------------------------------------
 
@@ -260,7 +260,7 @@ hello world!
 hello world, again
 ------------------------------------------------
 
-So what our "git update-index" did was store a new blob and then put
+So what our "git add" did was store a new blob and then put
 a reference to it in the index file.  If we modify the file again,
 we'll see that the new modifications are reflected in the "git-diff"
 output:

builtin-apply.c

@@ -1988,7 +1988,7 @@ static int check_patch(struct patch *patch, struct patch *prev_patch)
 			return error("%s: %s", old_name, strerror(errno));
 
 		if (!cached)
-			st_mode = ntohl(create_ce_mode(st.st_mode));
+			st_mode = ntohl(ce_mode_from_stat(ce, st.st_mode));
 
 		if (patch->is_new < 0)
 			patch->is_new = 0;

builtin-blame.c

@@ -2203,6 +2203,7 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
 			if (!strcmp(argv[j], "--"))
 				seen_dashdash = j;
 		if (seen_dashdash) {
+			/* (2) */
 			if (seen_dashdash + 1 != argc - 1)
 				usage(blame_usage);
 			path = add_prefix(prefix, argv[seen_dashdash + 1]);
@@ -2211,6 +2212,8 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
 		}
 		else {
 			/* (3) */
+			if (argc <= i)
+				usage(blame_usage);
 			path = add_prefix(prefix, argv[i]);
 			if (i + 1 == argc - 1) {
 				final_commit_name = argv[i + 1];

builtin-update-index.c

@@ -109,16 +109,17 @@ static int add_file_to_cache(const char *path)
 	ce->ce_flags = htons(namelen);
 	fill_stat_cache_info(ce, &st);
 
-	ce->ce_mode = create_ce_mode(st.st_mode);
-	if (!trust_executable_bit) {
+	if (trust_executable_bit)
+		ce->ce_mode = create_ce_mode(st.st_mode);
+	else {
 		/* If there is an existing entry, pick the mode bits
 		 * from it, otherwise assume unexecutable.
 		 */
+		struct cache_entry *ent;
 		int pos = cache_name_pos(path, namelen);
-		if (0 <= pos)
-			ce->ce_mode = active_cache[pos]->ce_mode;
-		else if (S_ISREG(st.st_mode))
-			ce->ce_mode = create_ce_mode(S_IFREG | 0666);
+
+		ent = (0 <= pos) ? active_cache[pos] : NULL;
+		ce->ce_mode = ce_mode_from_stat(ent, st.st_mode);
 	}
 
 	if (index_path(ce->sha1, path, &st, !info_only))

cache.h

@@ -106,6 +106,16 @@ static inline unsigned int create_ce_mode(unsigned int mode)
 		return htonl(S_IFLNK);
 	return htonl(S_IFREG | ce_permissions(mode));
 }
+static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned int mode)
+{
+	extern int trust_executable_bit;
+	if (!trust_executable_bit && S_ISREG(mode)) {
+		if (ce && S_ISREG(ntohl(ce->ce_mode)))
+			return ce->ce_mode;
+		return create_ce_mode(0666);
+	}
+	return create_ce_mode(mode);
+}
 #define canon_mode(mode) \
 	(S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \
 	S_ISLNK(mode) ? S_IFLNK : S_IFDIR)

diff-lib.c

@@ -170,9 +170,7 @@ static int get_stat_data(struct cache_entry *ce,
 		}
 		changed = ce_match_stat(ce, &st, 0);
 		if (changed) {
-			mode = create_ce_mode(st.st_mode);
-			if (!trust_executable_bit && S_ISREG(st.st_mode))
-				mode = ce->ce_mode;
+			mode = ce_mode_from_stat(ce, st.st_mode);
 			sha1 = no_sha1;
 		}
 	}

read-cache.c

@@ -344,16 +344,17 @@ int add_file_to_index(const char *path, int verbose)
 	ce->ce_flags = htons(namelen);
 	fill_stat_cache_info(ce, &st);
 
-	ce->ce_mode = create_ce_mode(st.st_mode);
-	if (!trust_executable_bit) {
+	if (trust_executable_bit)
+		ce->ce_mode = create_ce_mode(st.st_mode);
+	else {
 		/* If there is an existing entry, pick the mode bits
 		 * from it, otherwise assume unexecutable.
 		 */
+		struct cache_entry *ent;
 		int pos = cache_name_pos(path, namelen);
-		if (pos >= 0)
-			ce->ce_mode = active_cache[pos]->ce_mode;
-		else if (S_ISREG(st.st_mode))
-			ce->ce_mode = create_ce_mode(S_IFREG | 0666);
+
+		ent = (0 <= pos) ? active_cache[pos] : NULL;
+		ce->ce_mode = ce_mode_from_stat(ent, st.st_mode);
 	}
 
 	if (index_path(ce->sha1, path, &st, 1))

t/t3700-add.sh

@@ -30,6 +30,16 @@ test_expect_success \
 	 *) echo fail; git-ls-files --stage xfoo1; (exit 1);;
 	 esac'
 
+test_expect_success 'git-add: filemode=0 should not get confused by symlink' '
+	rm -f xfoo1 &&
+	ln -s foo xfoo1 &&
+	git-add xfoo1 &&
+	case "`git-ls-files --stage xfoo1`" in
+	120000" "*xfoo1) echo ok;;
+	*) echo fail; git-ls-files --stage xfoo1; (exit 1);;
+	esac
+'
+
 test_expect_success \
 	'git-update-index --add: Test that executable bit is not used...' \
 	'git config core.filemode 0 &&
@@ -41,6 +51,16 @@ test_expect_success \
 	 *) echo fail; git-ls-files --stage xfoo2; (exit 1);;
 	 esac'
 
+test_expect_success 'git-add: filemode=0 should not get confused by symlink' '
+	rm -f xfoo2 &&
+	ln -s foo xfoo2 &&
+	git update-index --add xfoo2 &&
+	case "`git-ls-files --stage xfoo2`" in
+	120000" "*xfoo2) echo ok;;
+	*) echo fail; git-ls-files --stage xfoo2; (exit 1);;
+	esac
+'
+
 test_expect_success \
 	'git-update-index --add: Test that executable bit is not used...' \
 	'git config core.filemode 0 &&