gitk: Display important heads even when there are many

When there are more than $maxrefs descendant heads to display in the
Branches field of the commit display, we currently just display "many",
which is not very informative.  To make the display more informative,
we now look for "master" and whichever head is currently checked out,
and display them even if there are too many heads to display them all.
The display then looks like "Branches: master and many more (33)" for
instance.

Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Ignore gitk-wish buildproduct

gitk, when bound into the git.git project tree, used to live at the
root level, but in 62ba514 (Move gitk to its own subdirectory,
2007-11-17) it was moved to a subdirectory.  The code used to track
changes to TCLTK_PATH (which should cause gitk to be rebuilt to
point at the new interpreter) was left in the main Makefile instead
of being moved to the new Makefile that was created for the gitk
project.

Also add .gitignore file to list build artifacts for the gitk
project.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Move hard-coded colors to .gitk

The Preferences dialog gives control of the colors of some elements of
the gitk user interface, but many are hard-coded in the gitk script.
In order to allow these to be customized through the gitk config
file, these other colors are stored in variables which can be set
in the config file, thus providing a way for color schemes to be stored
and shared.

For win32, this makes the default foreground color that of window text
rather than button text.

Signed-off-by: Gauthier Östervall <gauthier@ostervall.se>
[paulus@samba.org: Reworded commit message to be clearer,
 changed filesepfgcolor to black]
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Improve behaviour of drop-down lists

The drop-down lists used for things like the criteria for finding
commits (containing/touching paths/etc.) use a combobox if we are
using the ttk widgets.  By default the combobox exports its value
as the selection when it is changed, which is unnecessary, and sometimes
the combobox wouldn't release the selection, which is annoying.

To fix this, we make these comboboxes not export their selection,
and also clear their selection whenever they are changed.  This makes
them more like a simple selection of alternatives, improving the look
and feel of gitk.

Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Display the date of a tag in a human-friendly way

By selecting a tag within gitk you can display information about it.
This information is output by using the command

 'git cat-file tag <tagid>'

This outputs the *raw* information from the tag, amongst which is the
time - in seconds since the epoch. As useful as that value is, I find it
a lot easier to read and process time which it is something like:

 "Mon Dec 31 14:26:11 2012 -0800"

This change will modify the display of tags in gitk like so:

  @@ -1,7 +1,7 @@
   object 5d417842efeafb6e109db7574196901c4e95d273
   type commit
   tag v1.8.1
  -tagger Junio C Hamano <gitster@pobox.com> 1356992771 -0800
  +tagger Junio C Hamano <gitster@pobox.com> Mon Dec 31 14:26:11 2012 -0800

   Git 1.8.1
   -----BEGIN PGP SIGNATURE-----

Signed-off-by: Anand Kumria <wildfire@progsoc.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Simplify file filtering

git diff is perfectly able to do this with '-- files', no need for
manual filtering.  This makes gettreediffs consistent with getblobdiffs.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Add menu item for reverting commits

Sometimes it's helpful (at least psychologically) to have this feature
easily accessible.  Code borrows heavily from cherrypick.

Signed-off-by: Knut Franke <Knut.Franke@gmx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Add support for -G'regex' pickaxe variant

git log -G'regex' is a very useful alternative to the classic
pickaxe.  Minimal patch to make it usable from gitk.

[zj: reword message]
[paulus@samba.org: reword droplist item]
Signed-off-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: On OSX, bring the gitk window to front

On OSX, Tcl/Tk application windows are created behind all
the applications down the stack of windows.  This is very
annoying, because once a gitk window appears, it's the
downmost window and switching to it is pain.

The patch is: if we are on OSX, use osascript to
bring the current Wish process window to front.

Signed-off-by: Tair Sabirgaliev <tair.sabirgaliev@gmail.com>
Thanks-to: Stefan Haller <lists@haller-berlin.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Update Swedish translation (304t)

Signed-off-by: Peter Krefting <peter@softwolves.pp.se>
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Tag display improvements

When a commit has many tags, the tag icons in the graph display can
easily become so wide as to push the commit message off the right-hand
edge of the graph display pane.  This changes the display so that if
there are more than 3 tags or they would take up more than a quarter
of the width of the pane, we instead display a single tag icon with
a legend inside it like "4 tags...".  If the user clicks on the tag
icon, gitk then displays all the tags in the diff display pane.

Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Support -G option from the command line

The -G option's usage is exactly analogous to that of -S, so
supporting it is easy.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Refactor per-line part of getblobdiffline and its support

For later use with data sources other than a pipe, refactor the big
worker part of getblobdiffline to a separate function
parseblobdiffline.  Also refactor its initialization and wrap-up to
separate routines.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Split out diff part in $commitinfo

So far we just parsed everything after the headers into the "comment"
bit of $commitinfo, including notes and -- if you gave weird options
-- the diff.

Split out the diff, if any, into a separate field.  It's easy to
recognize, since it always starts with /^diff/ and is preceded by an
empty line.

We take care to snip away said empty line.  The display code already
properly spaces the end of the message from the first diff, and
leaving another empty line at the end looks ugly.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Support showing the gathered inline diffs

The previous commit split the diffs into a separate field.  Now we
actually want to show them.

To that end we use the stored diff, and

- process it once to build a fake "tree diff", i.e., a list of all
  changed files;

- feed it through parseblobdiffline to actually format it into the
  $ctext field, like the existing diff machinery would.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Recognize -L option

This gives line-log support to gitk, by exploiting the new support for
processing and showing "inline" diffs straight from the git-log
output.

Note that we 'set allknown 0', which is a bit counterintuitive since
this is a "known" option.  But that flag prevents gitk from thinking
it can optimize the view by running rev-list to see the topology; in
the -L case that doesn't work.

Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Fix mistype

Signed-off-by: Max Kirillov <max@max630.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Add Bulgarian translation (304t)

Signed-off-by: Alexander Shopov <ash@kambanaria.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: Update copyright dates

Signed-off-by: Paul Mackerras <paulus@samba.org>
gitk: chmod +x po2msg.sh

The Makefile only runs it using tclsh, but because the fallback po2msg
script has the usual tcl preamble starting with #!/bin/sh it can also
be run directly.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>