The new execdir is two levels below the root directory, while
the old execdir 'bin' was only one level below.  This commit
adapts the discovery of oguilib that uses relative paths
accordingly. We determine whether we have the extra level in the same
way in which the Makefile defines sharedir, i.e. whether the last
directory part is 'git-core'.
Inspired-by: NSteffen Prohaska <prohaska@zib.de>
Signed-off-by: NJohannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Back in 15430be5 ("Look for gitk in $PATH, not $LIBEXEC/git-core")
git-gui learned to use [_which gitk] to locate where gitk's script
is as Git 1.6 will install gitk to $prefix/bin (in $PATH) and all
of the other tools are in $gitexecdir.

This failed on Windows because _which adds the ".exe" suffix as it
searches for the program on $PATH, under the assumption that we can
only execute something from Tcl if it is a proper Windows executable.

When scanning for gitk on Windows we need to omit the ".exe" suffix.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

It was positioned incorrectly (offset by one position)
if the menu had a tear-off handle.
Signed-off-by: NAlexander Gavrilov <angavrilov@gmail.com>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Signed-off-by: NAbhijit Menon-Sen <ams@toroid.org>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Currently 'git-gui blame' does not kill its back-end
process, hoping that it will die anyway when the pipe
is closed. However, in some cases the process works
for a long time without producing any output. This
behavior results in a runaway CPU hog.
Signed-off-by: NAlexander Gavrilov <angavrilov@gmail.com>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

On huge repositories, -C -C can be way too slow to be
unconditionally enabled, and it can also be useful to control
its precision.
Signed-off-by: NAlexander Gavrilov <angavrilov@gmail.com>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Apply the work-around for checking the executable
permission of hook files not only on Cygwin, but on
Windows in general.
Signed-off-by: NAlexander Gavrilov <angavrilov@gmail.com>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Now, as in all OSX apps, there is only one quit menu entry.
It's automatically in the wish menu and calls ::tk::mac::Quit when used.
Signed-off-by: NSoeren Finster <sf@9by6.de>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

This adds a context menu entry below "Stage/Unstage Hunk" that stages or
unstages just the line under the mouse pointer.

This is by itself useful, for example, if there are unrelated changes in
the same hunk and the hunk cannot be split by reducing the context.

The feature can also be used to split a hunk by staging a number of
additions (or unstaging a number of removals) until there are enough
context lines that the hunk gets split.

The implementation reads the complete hunk that the line lives in, and
constructs a new hunk by picking existing context lines, removing unneeded
change lines and transforming other change lines to context lines. The
resulting hunk is fed through 'git apply' just like in the "Stage/Unstage
Hunk" case.
Signed-off-by: NJohannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Johannes Sixt noticed that if the last file in the list was staged, my
earlier patch would display the diff for the penultimate file, but show
the file _before_ that as being selected.

This was due to my misunderstanding the lno argument to show_diff.

This patch fixes the problem: lno is not decremented in the special case
to handle the last item in the list (though we still need to use $lno-1
to find the right path for the next diff).
Signed-off-by: NAbhijit Menon-Sen <ams@toroid.org>
Tested-by: NJohannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

If a text widget is asked the index at x,y with y == 0 or y == 1 it will
always return 1.0 as the nearest index, regardless of the x position.

This means that clicking the top 2 pixels of the Unstaged/Staged Changes
lists caused the state of the file there to be toggled. This patch
checks that the pixel clicked is greater than 1, so there is less chance
of accidentally staging or unstaging changes.
Signed-off-by: NRichard Quirk <richard.quirk@gmail.com>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Suppose the "Unstaged Changes" pane contains a list of files, and one of
them is selected (i.e., that diff is currently being displayed). If one
clicks on the icon to stage the change, git-gui clears the diff and one
has to click on another filename to see the next diff in the list.

This patch changes that behaviour. If one clicks on the icon to stage
(or unstage) the file whose diff is being displayed, git-gui will move
on to the next filename in the list and display that diff instead of a
blank diff pane. If the selected file was at the end of the list, the
diff pane will display the previous diff instead; if the selected file
was the only one listed, the diff pane will become blank.

If no diff is currently being displayed, this patch changes nothing.
Signed-off-by: NAbhijit Menon-Sen <ams@toroid.org>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

If the user has put nowinsymlinks into their CYGWIN environment
variable any symlinks created by a Cygwin process (e.g. ln -s)
will not have the ".lnk" suffix.  In this case workdir is still
a workdir, but our detection of looking for "info.lnk" fails
as the symlink is actually a normal file called "info".

Instead we just always use Cygwin's test executable to see if
info/exclude is a file.  If it is, we assume from there on it
can be read by git-ls-files --others and is thus safe to use
on the command line.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Often new Git users want to know what commands git-gui uses to make
changes, so they can learn the command line interface by mimicking
what git-gui does in response to GUI actions.  Showing the direct
commands being executed is easy enough to implement but this is of
little value to end-users because git-gui frequently directly calls
plumbing, not porcelain.

Since the code is already written and tested, its fairly harmless
to include.  It may not help a new end-user, but it can help with
debugging git-gui or reverse-engineering its logic to further make
changes to it or implement another GUI for Git.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

When creating new branches if branch.autosetupmerge is not set, or
is set to true or always and we have been given a remote tracking
branch as the starting point for a new branch we want to create the
necessary configuration options in .git/config for the new branch
so that a no argument git-pull on the command line pulls from the
remote repository's branch.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

On some systems, brackets cannot be used as event details
(they don't have a keysym), so use +/- instead (both on
keyboard and keypad) and add ctrl-= as a synonym of ctrl-+
for convenience.

[sp: Had to change accelerator to show only "$M1T-="; the
     original version included "$M1T-+ $M1T-=" but this is
	 not drawn at all on Mac OS X.]
Signed-off-by: NMichele Ballabio <barra_cuda@katamail.com>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Thanks to Michele Ballabio for the quick fix.
This resolves the error introduced by c91ee2bd.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Bound to Ctrl/Cmd + left & right square brackets, depending on
your platform.

[sp: Added missing binds for . to allow shortcuts to work when
     not focused in the commit message area.]
Signed-off-by: NJonathan del Strother <jon.delStrother@bestbefore.tv>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Peter Karlsson pointed out there is no value in translating the
string "Apple", as this is used as the dummy label for the Apple
menu on Mac OS X systems.

The Apple menu is actually not the menu with the Apple corporate
logo, but the menu next to it, which shows the name of the
application and is typically called the application menu.  Most users
of git-gui see this menu titled as "Git Gui".  The actual label of
this menu comes from our Info.plist file and cannot be specified
by any other means.  Translating this string in the Tcl PO files
is not necessary.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

The width of the commit message text area is currently hard-coded
to 75 characters. This value might be not optimal for some projects.
For instance users who would like to generate GNU-style ChangeLog
file from git commit message might prefer commit messages of width
no longer than 70 characters.

This patch adds a global and per repository option "Commit Message
Text Width", which could be used to change the width of the commit
message text area.
Signed-off-by: NAdam Piątyszek <ediap@users.sourceforge.net>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

In several places, only the background colour is set to an explicit
value, sometimes even "white".  This does not work well with dark
colour themes.

This patch tries to set the foreground colour to "black" in those
situations, where an explicit background colour is set without defining
any foreground colour.
Signed-off-by: NPhilipp A. Hartmann <ph@sorgh.de>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

"git gui" would complain at launch if the local version of Git was
"1.5.4.2.dirty". Loosen the regular expression to look for either
"-dirty" or ".dirty", thus eliminating spurious warnings.
Signed-off-by: NWincent Colaiuta <win@wincent.com>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Many user friendly tools like word processors, email editors and web
browsers allow users to spell check the message they are writing
as they type it, making it easy to identify a common misspelling
of a word and correct it on the fly.

We now open a bi-directional pipe to Aspell and feed the message
text the user is editing off to the program about once every 300
milliseconds.  This is frequent enough that the user sees the results
almost immediately, but is not so frequent as to cause significant
additional load on the system.  If the user has modified the message
text during the last 300 milliseconds we delay until the next period,
ensuring that we avoid flooding the Aspell process with a lot of
text while the user is actively typing their message.

We wait to send the current message buffer to Aspell until the user
is at a word boundary, thus ensuring that we are not likely to ask
for misspelled word detection on a word that the user is actively
typing, as most words are misspelled when only partially typed,
even if the user has thus far typed it correctly.

Misspelled words are highlighted in red and are given an underline,
causing the word to stand out from the others in the buffer.  This is
a very common user interface idiom for displaying misspelled words,
but differs from one platform to the next in slight variations.
For example the Mac OS X system prefers using a dashed red underline,
leaving the word in the original text color.  Unfortunately the
control that Tk gives us over text display is not powerful enough
to handle such formatting so we have to work with the least common
denominator.

The top suggestions for a misspelling are saved in an array and
offered to the user when they right-click (or on the Mac ctrl-click)
a misspelled word.  Selecting an entry from this menu will replace
the misspelling with the correction shown.  Replacement is integrated
with the undo/redo stack so undoing a replacement will restore the
misspelled original text.

If Aspell could not be started during git-gui launch we silently eat
the error and run without spell checking support.  This way users
who do not have Aspell in their $PATH can continue to use git-gui,
although they will not get the advanced spelling functionality.

If Aspell started successfully the version line and language are
shown in git-gui's about box, below the Tcl/Tk versions.  This way
the user can verify the Aspell function has been activated.

If Aspell crashes while we are running we inform the user with an
error dialog and then disable Aspell entirely for the rest of this
git-gui session.  This prevents us from fork-bombing the system
with Aspell instances that always crash when presented with the
current message text, should there be a bug in either Aspell or in
git-gui's output to it.

We escape all input lines with ^, as recommended by the Aspell manual
page, as this allows Aspell to properly ignore any input line that is
otherwise looking like a command (e.g. ! to enable terse output).  By
using this escape however we need to correct all word offsets by -1 as
Aspell is apparently considering the ^ escape to be part of the line's
character count, but our Tk text widget obviously does not.

Available dictionaries are offered in the Options dialog, allowing
the user to select the language they want to spellcheck commit
messages with for the current repository, as well as the global
user setting that all repositories inherit.

Special thanks to Adam Flott for suggesting connecting git-gui
to Aspell for the purpose of spell checking the commit message,
and to Wincent Colaiuta for the idea to wait for a word boundary
before passing the message over for checking.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

The code we use to test if a hook is executable or not differs on
Cygwin from the normal POSIX case.  Rather then repeating that for
all three hooks we call in our commit code path we can place the
common logic into a global procedure and invoke it when necessary.

This also lets us get rid of the ugly "|& cat" we were using before
as we can now rely on the Tcl 8.4 feature of "2>@1" or fallback to
the "|& cat" when necessary.

The post-commit hook is now run through the same API, but its outcome
does not influence the commit status.  As a result we now show any of
the errors from the post-commit hook in a dialog window, instead of on
the user's tty that was used to launch git-gui.  This resolves a long
standing bug related to not getting errors out of the post-commit hook
when launched under git-gui.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

"Stage/Unstage Hunk" is probably the most frequently used command of the
patch context menu *and* it is not available in some other form than
the context menu. Therefore, it should go to the top. "Less Context" and
"More Context" entries are also not easily available otherwise, and are
therefore, moved second. The other entries are available via key strokes
(Copy, Paste, Refresh) or rarly used (Font Size, Options) and can go last.
Signed-off-by: NJohannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Aaron Digulla suggested we bind Ctrl-T or Cmd-T to "Stage To Commit"
menu action so it can be easily accessed from the keyboard.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Previously we allowed users to tweak their font weight to be bold by
setting it manually in their ~/.gitconfig prior to starting git-gui.
This was broken in ae0754ac when
Simon set the font weight to normal by default, overridding whatever
we found from the ~/.gitconfig file.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

If a translation string uses a format character we don't have an
argument for then it may throw an error when we attempt to format
the translation.  In this case switch back to the default format
that comes with the program (aka the English translation).
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

git-config won't honor any options after --list.  We must supply
the --global option in front of --list if we really want to load
the global configuration options.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

On Windows using the native Tcl/Tk the copyright header is
being read from the script using the system encoding, which
may not be utf-8.  This causes the multi-byte copyright symbol
(which is actually encoded as utf-8) to read as two characters
and not as a proper copyright symbol.  Explicitly asking Tcl
to read this sequence of bytes as utf-8 corrects the issue.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

If git-gui is started outside a work tree the repository chooser
will offer a list of recently opened repositories.  Clicking on
any list entry directly opens the repository.

The list of recently opened repositories is stored in the config
as the multi-valued option gui.recentrepo. If the list grows beyond
10 entries it will be truncated by removing one of the older entries.

Only repositories that are opened through the repository chooser
will get added to the recent list.  Repositories opened from the
shell will not yet be added to the recent list, as users are likely
to have a way to easily return to the same directory via their shell.

[sp: This is actually a combined work from both Steffen and myself.
     Most of the ideas are Steffen's, as is the basic outline of
     the code, but any outstanding bugs are entirely my fault.]
Signed-off-by: NSteffen Prohaska <prohaska@zib.de>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Using the new --null option added to git-config in git 1.5.3 we
can safely accept LFs that are embedded in configuration options.
This does require a completely different configuration file parser
then the pre 1.5.3 version as we are splitting on very different
values.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

The parsing for the output of `git config --list` is the same for
both the global options and the current repository's options so we
can really just use the same parser between them.

I'm currently just refactoring the parser so we can use a different
one depending on the version of git available to us at runtime.  My
next change will add support for 1.5.3's --null option.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

To better handle configuration options that contain LFs in their
values we want to use the new -z option available in git-config
version 1.5.3 and later.  To configure load_config based upon the
git version we need to move thos below the git-version computation.

No logic changes yet, just a minor reordering of the code.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

The layout is changed to have the file lists at the left (Unstaged
Changes at the top, Staged Changes below it) and the diff window
at the right (with the commit area below it).

  +----------+---------------------+
  | Unstaged |  Diff area          |
  |          |                     |
  |          |                     |
  |          |                     |
  +----------+                     |
  | Staged   |                     |
  |          +---------------------+
  |          |  Commit area        |
  |          |                     |
  +----------+---------------------+

The advantages are:

  - The height of the file lists can be adjusted independently to
    fit the files that they contain.
  - The diff viewer is higher.

On wide screens it is ok that the main window is now generally
wider, too.
Signed-off-by: NJohannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

This commit modifies PATH to include a good guess where git
could be found. The first location to search for executable is
the directory git-gui is installed in. This is a good guess for
a sane installation.

Even if git is not available in PATH, git-gui is now able
to find it. Hence git-gui can be passed to wish as an absolute
path without caring about the environment.

We must modify PATH to be able to spawn shell based git commands.
For builtins it would be sufficient to located them and execute
them with their absolute path. But for shell based git commmands
PATH needs to be modified.
Signed-off-by: NSteffen Prohaska <prohaska@zib.de>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

The titles for the staged and unstaged areas were usually opening
up too narrow by default, causing the text to be clipped by Tcl as
it tried to center the text in the middle of the available area.
This meant that users who were new to git-gui did not get to see
the entire header and may be unclear about what the different lists
are.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

A Mac OS X UI convention is to have Cmd-, be the accelerator key
for the preferences window, which by convention is located in the
apple menu under a separator below the about command.  We also now
call this "Preferences..." as that is the conventional term used
in English.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

Sometimes the Fetch menu looks really odd, such as if you are in a
repository that has no remotes configured when you start git-gui.
Here we didn't have any items to add to the Fetch menu so it was a
tad confusing for the end-user to see an empty menu on the menu bar.

We now place all of the commands related to fetching and pushing of
changes into a single "Remote" menu.  This way we have a better class
of bucket that we can drop additional remote related items into such
as doing a remote merge or editing the remote configuration specs.

The shortcuts to execute fetch/remote prune/push on existing remote
specifications are now actually submenus listing the remotes by name.
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>

This commit teaches git-gui to accept versions with annotations
that start with text and optionally end with a dot followed by
a number.

This is needed by the current versioning scheme of msysgit,
which uses versions like 1.5.3.mingw.1. However, the changes
is not limited to this use case. Any version of the form
<numeric version>.<anytext>.<number> would be parsed and only
the starting <numeric version> used for validation.

[sp: Minor edit to remove unnecessary group matching]
Signed-off-by: NSteffen Prohaska <prohaska@zib.de>
Signed-off-by: NShawn O. Pearce <spearce@spearce.org>