Add a menu entry for generating a patch between any two commits.

Fix behaviour in the case where we have no commits to display.

I had code in there to put "No commits selected" on the canvas
but it needed some globals.

Check for the existence of the git directory on startup.

Check that $GIT_DIR (or .git, if GIT_DIR is not set) is a directory.
This means we can give a more informative error message if the user
runs gitk somewhere that isn't a git repository.

Clear the SHA1 entry field when we go to paste something into it

If the user pastes in the selection (with the middle mouse button) and
it already has 40 characters in it, clear it before pasting.

Add commit row context menu and handle left-click on graph lines

Right-click on a context row now brings up a menu allowing the user to
generate a diff between that row and the selected row. Left-click on
a graph line shows the parent and children connected by the line in
the details pane. Left-click on a circle in the graph selects that
commit. Left-click elsewhere in the graph does nothing.

When displaying a diff, the bottom-right file list box behaves
slightly differently now; instead of eliding all other files' diffs,
it now just scrolls the details pane so that the selected file's diff
starts at the top of the pane.

Since the diffs can be rather large, arrange for an update to be done
every 100ms while reading diffs.

Also removed the CVS revision keywords and bumped the version number
to 1.2.

Try to assign colors so crossing lines have different colors

In particular try hard to give different colors to lines that cross
at a corner in one of the lines.

Account for indentation of the checkin comments by git-rev-list

This involves adding indentation when we read a commit with
git-cat-file and trimming the whitespace from the headline.

Use git-rev-list --header.

With --header, git-rev-list gives us the contents of the commit
in-line, so we don't need to exec a git-cat-file to get it, and we
don't need the readobj command either.
Also fixed a residual problem with handling the commit that
has a parent listed twice.

Pass arguments through git-rev-parse.

This allows the user to specify ranges more flexibly; for instance
the user can now do "gitk v2.6.12.." and see all the changes since
2.6.12.

Handle the case of a parent being listed twice in a merge.

This happens in the linux-2.6 tree. We draw the graph line
double-thick to show that this happened.

Also fix a bug where we got a bogus "No commit information available"
line at the end on simple repositories like this one.

Draw graph lines as one continuous line where possible
Added context menu on lines
Added headline display when the mouse hovers over a line
Removed some debug messages

Fix operation without libreadobj.so.0.0
Display a watch cursor when reading the commits initially

Restructure to do incremental drawing
Some speedups from not doing update so often

Show heads as well as tags

cope with changed git-diff-tree output format

Use git-rev-list instead of git-rev-tree.
Fix bug in changing font size in entry widgets.
Fix bug with B1 click before anything has been drawn.
Use "units" and "pages" instead of "u" and "p" for tk8.5.

Read tags from .git/refs/tags/* and mark commits with tags
with a label.
Allow SHA1 ids or tags to be entered in the SHA1 ID field.

Accommodate new git-diff-tree output format
Add 'f' key for moving to next file

Handle \ No newline at end of line lines in diff
Put (deleted) or (created, mode xxx) in header lines
Fix scrolling to bring lines on screen

More fixes for geometry restoration
Make up/down/pgup/pgdn work again
Return in find string entry does find
Scale circles and lines with font size
Fix scrolling to make entire selected line visible
Use white circle for commits not listed but put in to terminate lines
Fix diff parsing for created and deleted files

Error popups on error conditions rather than stderr msgs
Stop . bindings firing on find string entry keypresses
Fix geometry saving/restoring a bit
Show the terminal commits
Highlight comment matches in the comment window

save window geometry on exit, and restore it on startup

Resize the panes in the paned windows (commit list and details)
to keep the proportionality of the pane widths as the overall
window is resized.

Fix stder -> stderr

Bumped version number

Made commit list reading asynchronous
Added control+/- to increase/decrease font sizes
Rearranged code a little.

Add a widget to show the SHA1 ID of the current commit
Add a find facility to search within the commits
Cope with multiple starting points.

Make behaviour when git-rev-tree fails nicer
Fix crash benh saw with currentid undefined
Add menu with file/quit and help/about items
Add ^Q for quit

Show the diffs when a commit is selected
Selecting in the listbox reduces the text view to just the
diff for the file(s) selected
Added -c option for color-by-committer
Added some more key bindings

Make getting file lists asynchronous
Add some scrollbars

source ~/.gitk for user-specific option settings
use a panedwindow for the main list with three panes,
and make them scroll together

Display the list of changed files in a listbox pane.

Use a panedwindow
Make it cope with commits having parents that aren't listed.

Add initial version of gitk to the CVS repository