Paul Mackerras [Tue, 23 Oct 2007 12:37:23 +0000 (22:37 +1000)]
gitk: Fix some bugs with path limiting in the diff display
First, we weren't putting "--" between the ids and the paths in the
git diff-tree/diff-index/diff-files command, so if there was a tag
and a file with the same name, we could get an ambiguity in the
command. This puts the "--" in to make it clear that the paths are
paths.
Secondly, this implements the path limiting for merge diffs as well
as the normal 2-way diffs.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Tue, 23 Oct 2007 00:33:38 +0000 (10:33 +1000)]
gitk: Ensure tabstop setting gets restored by Cancel button
We weren't restoring the tabstop setting if the user pressed the
Cancel button in the Edit/Preferences window. Also improved the
label for the checkbox (made it "Tab spacing" rather than the laconic
"tabstop") and moved it above the "Display nearby tags" checkbox.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Tue, 23 Oct 2007 00:15:11 +0000 (10:15 +1000)]
gitk: Limit diff display to listed paths by default
When the user has specified a list of paths, either on the command line
or when creating a view, gitk currently displays the diffs for all files
that a commit has modified, not just the ones that match the path list.
This is different from other git commands such as git log. This change
makes gitk behave the same as these other git commands by default, that
is, gitk only displays the diffs for files that match the path list.
There is now a checkbox labelled "Limit diffs to listed paths" in the
Edit/Preferences pane. If that is unchecked, gitk will display the
diffs for all files as before.
When gitk is run with the --merge flag, it will get the list of unmerged
files at startup, intersect that with the paths listed on the command line
(if any), and use that as the list of paths.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sun, 21 Oct 2007 02:58:42 +0000 (12:58 +1000)]
gitk: Fix "can't unset prevlines(...)" Tcl error
This fixes the error reported by Michele Ballabio, where gitk will
throw a Tcl error "can't unset prevlines(...)" when displaying a
commit that has a parent commit listed more than once, and the commit
is the first child of that parent.
The problem was basically that we had two variables, prevlines and
lineends, and were relying on the invariant that prevlines($id) was
set iff $id was in the lineends($r) list for some $r. But having
a duplicate parent breaks that invariant since we end up with the
parent listed twice in lineends.
This fixes it by simplifying the logic to use only a single variable,
lineend. It also rearranges things a little so that we don't try to
draw the line for the duplicated parent twice.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sat, 20 Oct 2007 12:10:52 +0000 (22:10 +1000)]
gitk: Avoid an error when cherry-picking if HEAD has moved on
This fixes an error reported by Adam Piątyszek: if the current HEAD
is not in the graph that gitk knows about when we do a cherry-pick
using gitk, then gitk hits an error when trying to update its
internal representation of the topology. This avoids the error by
not doing that update if the HEAD before the cherry-pick was a
commit that gitk doesn't know about.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sat, 20 Oct 2007 11:21:03 +0000 (21:21 +1000)]
gitk: Check that we are running on at least Tcl/Tk 8.4
This checks that we have Tcl/Tk 8.4 or later, and puts up an error
message in a window and quits if not.
This was prompted by a patch submitted by Steffen Prohaska, but is
done a bit differently (this uses package require rather than
looking at [info tclversion], and uses show_error to display the
error rather than printing it to stderr).
Signed-off-by: Paul Mackerras <paulus@samba.org>
Johannes Sixt [Tue, 2 Oct 2007 14:16:54 +0000 (16:16 +0200)]
gitk: Do not pick up file names of "copy from" lines
A file copy would be detected only if the original file was modified in the
same commit. This implies that there will be a patch listed under the
original file name, and we would expect that clicking the original file
name in the file list warps the patch window to that file's patch. (If the
original file was not modified, the copy would not be detected in the first
place, the copied file would be listed as "new file", and this whole matter
would not apply.)
However, if the name of the copy is sorted after the original file's patch,
then the logic introduced by commit
d1cb298b0b (which picks up the link
information from the "copy from" line) would overwrite the link
information that is already present for the original file name, which was
parsed earlier. Hence, this patch reverts part of said commit.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Jonathan del Strother [Mon, 15 Oct 2007 09:33:07 +0000 (10:33 +0100)]
gitk: Add support for OS X mouse wheel
(Väinö Järvelä supplied this patch a while ago for 1.5.2. It no longer
applied cleanly, so I'm reposting it.)
MacBook doesn't seem to recognize MouseRelease-4 and -5 events, at all.
So i added a support for the MouseWheel event, which i limited to Tcl/tk
aqua, as i couldn't test it neither on Linux or Windows. Tcl/tk needs to
be updated from the version that is shipped with OS X 10.4 Tiger, for
this patch to work.
Signed-off-by: Jonathan del Strother <jon.delStrother@bestbefore.tv>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Sam Vilain [Tue, 16 Oct 2007 22:33:04 +0000 (11:33 +1300)]
gitk: disable colours when calling git log
If the user specifies 'diff.color = 1' in their configuration file,
then gitk will not start. Disable colours when calling git log.
Signed-off-by: Sam Vilain <sam.vilain@catalyst.net.nz>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Paul Mackerras [Wed, 29 Aug 2007 12:41:34 +0000 (22:41 +1000)]
gitk: Fix bug causing undefined variable error when cherry-picking
When "Show nearby tags" is turned off and the user did a cherry-pick,
we were trying to access variables relating to the descendent/ancestor
tag & head computations in addnewchild though they hadn't been set.
This makes sure we don't do that. Reported by Johannes Sixt.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 20 Aug 2007 09:36:20 +0000 (19:36 +1000)]
gitk: Add a window to list branches, tags and other references
This adds an entry to the File menu labelled "List references" which
pops up a window showing a sorted list of branches, tags, and other
references, with a little icon beside each to indicate what sort it
is. The list only shows refs that point to a commit that is included
in the graph, and if you click on a ref, the corresponding commit
is selected in the main window. The list of refs gets updated
dynamically.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Johannes Sixt [Thu, 16 Aug 2007 12:32:29 +0000 (14:32 +0200)]
[PATCH] gitk: Handle 'copy from' and 'copy to' in diff headers.
If a commit contained a copy operation, the file name was not correctly
determined, and the corresponding part of the patch could not be
navigated to from the list of files.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Fri, 17 Aug 2007 07:57:31 +0000 (17:57 +1000)]
gitk: Fix bug in fix for warning when removing a branch
My fix in commit
b1054ac985aebc90c0a78202dab8477b74d7818a was only
half-right, since it ignored the case where the descendent heads of
the head being removed correspond to two or more different commits.
This fixes it. Reported by Mark Levedahl.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Arjen Laarhoven [Tue, 14 Aug 2007 20:02:04 +0000 (22:02 +0200)]
[PATCH] gitk: Make the date/time display configurable
The new 'datetimeformat' configuration variable in ~/.gitk can be set
to a Tcl 'clock format' format string to modify the display of dates
and times.
http://www.tcl.tk/man/tcl8.4/TclCmd/clock.htm has a list of allowed
fields.
Signed-off-by: Arjen Laarhoven <arjen@yaph.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Steffen Prohaska [Sun, 12 Aug 2007 10:05:46 +0000 (12:05 +0200)]
[PATCH] gitk: Let user easily specify lines of context in diff view
More lines of context sometimes help to better understand a diff.
This patch introduces a text field above the box displaying the
blobdiffs. You can type in the number of lines of context that
you wish to view. The number of lines of context is saved to
~/.gitk.
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Wed, 15 Aug 2007 00:09:47 +0000 (10:09 +1000)]
gitk: Fix warning when removing a branch
When we had two heads on the same commit, and the user tried to remove
one of them, gitk was sometimes incorrectly saying that the commits
on that branch weren't on any other branch. This fixes it.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 13 Aug 2007 05:02:02 +0000 (15:02 +1000)]
gitk: Fix bug causing Tcl error when updating graph
If "Show nearby tags" is turned off, selecting "Update" from the File
menu will cause a Tcl error. This fixes it. The problem was that
we were calling regetallcommits unconditionally, but it assumed that
getallcommits had been called previously. This also restructures
{re,}getallcommits to be a bit simpler.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 13 Aug 2007 04:52:00 +0000 (14:52 +1000)]
gitk: Fix bug introduced in commit
67a4f1a7
In fixing the "can't unset idinlist" error, I moved the setting of
idinlist into the loop that splits the parents into "new" parents
(i.e. those of which this is the first child) and "old" parents.
Unfortunately this is incorrect in the case where we hit the break
statement a few lines further down, since when we come back in,
we'll see idinlist($p) set for some parents that aren't in the list.
This fixes it by moving the loop that sets up newolds and oldolds
further down.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Alex Riesen [Sun, 29 Jul 2007 20:29:45 +0000 (22:29 +0200)]
[PATCH] gitk: Show an error and exit if no .git could be found
This is to help people starting gitk from graphical file managers where
the stderr output is hidden.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Alex Riesen [Sun, 29 Jul 2007 20:28:40 +0000 (22:28 +0200)]
[PATCH] gitk: Continue and show error message in new repos
If there is no commit made yet, gitk just dumps a Tcl error on stderr,
which sometimes is hard to see. Noticed when gitk was run from Xfce
file manager (thunar's custom action).
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Mark Levedahl [Wed, 8 Aug 2007 01:40:35 +0000 (21:40 -0400)]
[PATCH] gitk: Handle MouseWheel events on Windows
Windows, unlike X-Windows, sends mousewheel events by default to the
window that has keyboard focus and uses the MouseWheel event to do so.
The window to be scrolled must be able to take focus, but gitk's panels
are disabled so cannot take focus. For all these reasons, a different
design is needed to use the mousewheel on Windows. The approach here is
to bind the mousewheel events to the top level window and redirect them
based upon the current mouse position.
Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Mark Levedahl [Wed, 8 Aug 2007 01:40:34 +0000 (21:40 -0400)]
[PATCH] gitk: Enable selected patch text on Windows
On windows, mouse input follows the keyboard focus, so to allow selecting
text from the patch canvas we must not shift focus back to the top level.
This change has no negative impact on X, so we don't explicitly test
for Win32 on this change. This provides similar selection capability
as already available using X-Windows.
Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sun, 12 Aug 2007 07:23:47 +0000 (17:23 +1000)]
gitk: Fix bug causing the "can't unset idinlist(...)" error
Under some circumstances, having duplicate parents in a commit could
trigger a "can't unset idinlist" Tcl error. This fixes the cause
(the logic in layoutrows could end up putting the same commit into
rowidlist twice) and also puts a catch around the unset to ignore
the error.
Thanks to Jeff King for coming up with a test script to generate a
repo that shows the problem.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Fri, 27 Jul 2007 12:30:15 +0000 (22:30 +1000)]
gitk: Add a context menu for file list entries
At the moment this just has two entries, which allow you to add the file
that you clicked on to the list of filenames to highlight, or replace
the list with the file.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Thu, 26 Jul 2007 12:36:39 +0000 (22:36 +1000)]
gitk: Fix bugs in the Find function
This fixes the problem reported by Brian Downing where searching for
a string that doesn't exist would give a Tcl error. The basic problem
was that we weren't reading the data for the last commit since it
wasn't terminated with a null. This effectively adds a null on the end
(if there isn't one already) to make sure we process the last commit.
This also makes the yellow background behind instances of the search
string appear more consistently, and fixes a bug where the "/" key
would just find the same commit again and again instead of advancing.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 23 Jul 2007 11:35:03 +0000 (21:35 +1000)]
gitk: Wait for the window to become visible after creating it
When the git log process returned an error immediately, we were
sometimes getting no main window and no error window displayed,
with the gitk process just hanging waiting for something. It appears
that the tkwait in show_error, which waits for the error window to
be destroyed, wasn't sufficient to allow the main window or the error
window to be mapped.
This adds a wait in the main startup code after the main window
has been created to wait until it is visible. This seems to fix the
problem.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Shawn O. Pearce [Thu, 19 Jul 2007 04:37:58 +0000 (00:37 -0400)]
[PATCH] gitk: Bind keyboard actions to the command key on Mac OS
git-gui already uses the command key for accelerators, but gitk has
never done so. I'm actually finding it very hard to move back and
forth between the two applications as git-gui is following the Mac
OS X conventions and gitk is not.
This trick is the same one that git-gui uses to determine which
key to bind actions to.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Mark Levedahl [Tue, 17 Jul 2007 22:42:04 +0000 (18:42 -0400)]
[PATCH] gitk: Ignore ctrl-z as EOF on windows
Cygwin's Tcl is configured to honor any occurence of ctrl-z as an
end-of-file marker, while some commits in the git repository and possibly
elsewhere include that character in the commit comment. This causes gitk
ignore commit history following such a comment and incorrect graphs. This
change affects only Windows as Tcl on other platforms already has
eofchar == {}. This fixes problems noted by me and by Ray Lehtiniemi, and
the fix was suggested by Shawn Pierce.
Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sun, 22 Jul 2007 12:05:30 +0000 (22:05 +1000)]
gitk: Make the fake commit for the index changes green rather than magenta
The magenta was a bit close in color to the normal blue commits. This
makes them green instead as suggested by Linus.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Fri, 13 Jul 2007 09:49:37 +0000 (19:49 +1000)]
gitk: Show changes in index and changes in working directory separately
This makes gitk show up to two fake commits when there are local changes
in the repository; one to represent the state of the index and one to
represent the state of the working directory. The commit representing
the working directory is colored red as before; the commit representing
the index state is colored magenta (as being between red and blue in
some sense).
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Fri, 13 Jul 2007 03:45:55 +0000 (13:45 +1000)]
gitk: Fix bug introduced by previous commit
When I added the "--" case to the code scanning the arguments, I missed
the fact that since the switch statement uses -regexp, the "--" case
will match any argument containing "--", e.g. "--all". This fixes it
by taking out the -regexp (since we don't actually need regular
expression matching) and adjusting the match strings.
A side effect of this is that previously any argument starting with
"-d" would be taken to indicate date mode; now the argument has to be
exactly "-d" if you want date mode.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Thu, 12 Jul 2007 12:29:49 +0000 (22:29 +1000)]
gitk: Improve handling of -- and ambiguous arguments
This makes gitk more consistent with git rev-list and git log in its
handling of arguments that could be either a revision or a filename;
now gitk displays an error message and quits, rather than treating it
as a revision and getting an error in the underlying git log. Now
gitk always passes "--" to git log even if no filenames are being
specified.
It also makes gitk display errors in invoking git log in a window
rather than on stderr, and makes gitk stop looking for a -d flag
when it sees a "--" argument.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 9 Jul 2007 12:45:47 +0000 (22:45 +1000)]
gitk: Use git log and add support for --left-right
This is based on patches from Linus Torvalds and Junio Hamano, so the
ideas here are theirs.
This makes gitk use "git log -z --pretty=raw" instead of "git rev-list"
to generate the list of commits, and also makes it grok the "<" and ">"
markers that git log (and git rev-list) output with the --left-right
flag to indicate which side of a symmetric diff a commit is reachable
from. Left-side commits are drawn with a triangle pointing leftwards
instead of a circle, and right-side commits are drawn with a triangle
pointing rightwards. The commitlisted list is used to store the
left/right information as well as the information about whether each
commit is on the boundary.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 9 Jul 2007 12:29:24 +0000 (22:29 +1000)]
gitk: Fix bug causing "can't read commitrow(0,n)" error
In commit
66e46f37de3ed3211a8ae0e8fc09c063bc3a1e08 I changed gitk to
store ids in rowrangelist and idrowranges rather than row numbers,
but I missed two places in the layouttail procedure. This resulted
in occasional errors such as the "can't read "commitrow(0,8572)":
no such element in array" error reported by Mark Levedahl. This fixes
it by using the id rather than the row number.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Brian Downing [Thu, 5 Jul 2007 11:33:02 +0000 (06:33 -0500)]
[PATCH] gitk: Fix for tree view ending in nested directories
Unroll the prefix stack when assigning treeheights when leaving
proc treeview. Previously, when the ls-tree output ended in
multiple nested directories (for instance in a repository with a
single file "foo/bar/baz"), $treeheight("foo/bar/") was assigned
twice, and $treeheight("foo/") was never assigned. This led to
an error when expanding the "foo" directory in the gitk treeview.
Signed-off-by: Brian Downing <bdowning@lavos.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Wed, 4 Jul 2007 12:41:19 +0000 (22:41 +1000)]
gitk: Remove the unused stopfindproc function
This was a hangover from before the "Files" and "Pickaxe" parts of
the Find function were moved to the highlight facility in commit
60f7a7dc4904ba4baab44b70e2675a01e6172f54. It serves no useful
purpose any more, so this removes it.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Wed, 4 Jul 2007 11:57:04 +0000 (21:57 +1000)]
gitk: Fix bug in the anc_or_desc routine
I missed the case where both nodes have no children and therefore
have no incoming arcs. This fixes it.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Wed, 4 Jul 2007 09:43:51 +0000 (19:43 +1000)]
gitk: Fix the find and highlight functions
This reworks the way that the "Find" button (and the /, ?, ^F, and ^G
keys) works. Previously, pressing the "Find" button would cause gitk
to go off and scan through every commit to see which commits matched,
and the user interface was completely unreponsive during that time.
Now the searching is done in chunks using the scheduler, so the UI
still responds, and the search stops as soon as a matching commit is
found.
The highlighting of matches using a yellow background is now done in
the commit-drawing code and the highlighting code. This ensures that
all the commits that are visible that match are highlighted without
the search code having to find them all.
This also fixes a bug where previously-drawn commits that need to be
highlighted were not being highlighted.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Mark Levedahl [Wed, 27 Jun 2007 01:51:34 +0000 (21:51 -0400)]
gitk: Update selection background colorbar in prefs dialog
The callback function was incorrectly set to update the background
colorbar when updated the selection background. This did not affect the
colors chosen or their use, just their presentation in the preferences
dialog box.
Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Mark Levedahl [Wed, 27 Jun 2007 01:51:35 +0000 (21:51 -0400)]
gitk: Use a spinbox for setting tabstop settings
The tabstop must be a smallish positive integer, and a spinbox is the
accepted UI control to accomplish this limiting rather than the text
entry box previously used.
Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Paul Mackerras [Tue, 26 Jun 2007 01:09:49 +0000 (11:09 +1000)]
gitk: Add a progress bar to show progress while resetting
Since git reset now gets chatty while resetting, we were getting errors
reported when a reset was done using the "reset branch to here" menu
item. With this we now read the progress messages from git reset and
update a progress bar. Because git reset outputs the progress messages
to standard error, and Tcl treats messages to standard error as error
messages, we have to invoke git reset via a shell and redirect standard
error into standard output.
This also fixes a bug in computing descendent heads when head ids
are changed via a reset.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sat, 23 Jun 2007 10:28:15 +0000 (20:28 +1000)]
gitk: Improve handling of whitespace and special chars in filenames
The main thing here is better parsing of the diff --git lines in the
output of git diff-tree -p. We now cope with filenames in quotes with
special chars escaped. If the filenames contain spaces they aren't
quoted, however, which can create difficulties in parsing. We get
around the difficulties by detecting the case when the filename hasn't
changed (chop the part after "diff --git " in two and see if the halves
match apart from a/ in one and b/ in the other), and if it hasn't
changed, we just use one half. If the filename has changed we wait
for the "rename from" and "rename to" lines, which give the old and
new filenames unambiguously.
This also improves the parsing of the output of git diff-tree.
Instead of using lindex to extract the filename, we take the part from
the first tab on, and if it starts with a quote, we use [lindex $str 0]
to remove the quotes and convert the escapes.
This also gets rid of some unused tagging of the diff text, uses
[string compare] instead of [regexp] in some places, and fixes the
regexp for detecting the @@ hunk-separator lines (the regexp wasn't
accepting a single number, as in "-0,0 +1" for example).
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 18 Jun 2007 12:39:21 +0000 (22:39 +1000)]
gitk: Fix bug causing nearby tags/heads to sometimes not be displayed
When we compute descendent heads and descendent/ancestor tags, we
cache the results. We need to be careful to invalidate the cache
when we add stuff to the graph. Also make sure that when we cache
descendent heads for a node we only cache the heads that are actually
descendents of that node.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Tue, 31 Oct 2006 04:00:53 +0000 (15:00 +1100)]
gitk: Limit how often we change the canvas scrolling region
For some unknown reason, changing the scrolling region on the canvases
provokes multiple milliseconds worth of computation in the X server,
and this can end up slowing gitk down significantly. This works around
the problem by limiting the rate at which we update the scrolling region
after the first 100 rows to at most 2 per second.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Thu, 19 Oct 2006 00:09:06 +0000 (10:09 +1000)]
gitk: Add a "reset branch to here" row context-menu operation
This adds an entry to the menu that comes up when the user does a
right-click on a row. The new entry allows the user to reset the
currently checked-out head to the commit for the row that they did
the right-click on. The user has to select what type of reset to
do, and confirm the reset, via a dialog box that pops up.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sun, 17 Jun 2007 23:48:23 +0000 (09:48 +1000)]
gitk: Get rid of the childlist variable
The information in childlist is a duplicate of what's in the children
array, and it wasn't being accessed often enough to be really worth
keeping the list around as well.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 11 Sep 2006 00:36:53 +0000 (10:36 +1000)]
gitk: Speed up the reading of references
We were doing two execs for each tag - one to map the tag ID to a
commit ID and one to read the contents of the tag for later display.
This speeds up the process by not reading the contents of the tag
(instead it is read later if needed), and by using the -d flag to
git show-ref, which gives us refs/tags/foo^{} lines which give us
the commit ID. Also this uses string operations instead of regexps.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Thu, 7 Sep 2006 00:21:39 +0000 (10:21 +1000)]
gitk: Show local uncommitted changes as a fake commit
If there are local changes in the repository, i.e., git-diff-index HEAD
produces some output, then this optionally displays an extra row in
the graph as a child of the HEAD commit (but with a red circle to
indicate that it's not a real commit). There is a checkbox in the
preferences window to control whether gitk does this or not.
Clicking on the extra row shows the diffs between the working directory
and the HEAD (using git diff-index -p). The right-click menu on the
extra row allows the user to generate a patch containing the local diffs,
or to display the diffs between the working directory and any commit.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sun, 15 Oct 2006 08:03:46 +0000 (18:03 +1000)]
gitk: New algorithm for drawing the graph lines
This only draws as much of the graph lines as is visible. This can
happen by adding coordinates on to an existing graph line or by
creating a new line. This means that we only need to have laid out
and optimized as much of the graph as is actually visible in order to
draw it, including the lines (previously we didn't draw a graph
line until we had laid out and optimized to the end of a segment of
the line, i.e. down to a down-arrow or to the row where the line's
commit is displayed). This also lets us get rid of the linesegends
list, and gives us an easy workaround for the X server bug that
causes long lines to be misdrawn. This also gets rid of the use
of rowoffsets in drawlineseg et al.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sat, 14 Oct 2006 09:21:02 +0000 (19:21 +1000)]
gitk: Store ids in rowrangelist and idrowranges rather than row numbers
This removes the need for insertrow to go through rowrangelist and
idrowranges and adjust a lot of entries. The first entry for a given
id is now the row number of the first child, not that row number + 1,
and rowranges compensates for that so its callers didn't have to
change. This adds a ranges argument to drawlineseg so that we can
avoid calling rowranges a second time inside drawlineseg (all its
callers already called rowranges).
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sun, 17 Jun 2007 07:08:35 +0000 (17:08 +1000)]
gitk: Disable the head context menu entries for the checked-out branch
Neither the "check out this branch" nor the "remove this branch"
menu item can be used on the currently-checked out branch, so disable
them.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Wed, 27 Sep 2006 00:56:02 +0000 (10:56 +1000)]
gitk: Cope with commit messages with carriage-returns and initial blank lines
In some repositories imported from other systems we can get carriage
return characters in the commit message, which leads to a multi-line
headline being displayed in the summary window, which looks bad.
Also some commit messages start with one or more blank lines, which
leads to an empty headline. This fixes these problems.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sun, 17 Jun 2007 04:45:00 +0000 (14:45 +1000)]
gitk: Implement a simple scheduler for the compute-intensive stuff
This allows us to do compute-intensive processing, such as laying out
the graph, relatively efficiently while also having the GUI be
reasonably responsive. The problem previously was that file events
were serviced before X events, so reading from another process which
supplies data quickly (hi git rev-list :) could mean that X events
didn't get processed for a long time.
With this, gitk finishes laying out the graph slightly sooner and
still responds to the GUI while doing so.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sat, 16 Jun 2007 11:51:08 +0000 (21:51 +1000)]
gitk: Improve the behaviour of the initial selection
It used to be that if you clicked on a line while gitk was still drawing
stuff, it would immediately re-select the first line of the display.
This fixes that.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Thu, 14 Sep 2006 23:45:23 +0000 (09:45 +1000)]
gitk: Add some more comments to the optimize_rows procedure
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sat, 16 Jun 2007 11:21:57 +0000 (21:21 +1000)]
gitk: Don't try to list large numbers of tags or heads in the details pane
With some large repositories, a commit can end up on thousands of
branches, which results in an extremely long "Branches:" line in the
details window, and that results in the window being extremely slow
to scroll.
This fixes it by just showing "many (N)" after "Branches:", "Follows:"
or "Precedes:", where N is the number of heads or tags. The limit
is currently set at 20 but could be made configurable (and the "many"
could be a link to pop up a window listing them all in case anyone
really wants to know).
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sat, 16 Jun 2007 10:29:25 +0000 (20:29 +1000)]
gitk: New infrastructure for working out branches & previous/next tags
Instead of working out descendent heads and descendent & ancestor
branches in a two-pass algorithm, this reads and stores a simplified
version of the graph topology, and works out descendent/ancestor
tags and descendent heads on demand (with a bit of caching).
The advantages of this are, first, that we now don't have to use
--topo-order on the git rev-list process. Secondly, we don't have
to re-read the whole graph when tags or heads change or even when
the graph changes. Since we can cope with parents coming before
children, we can update the graph by running a git rev-list with
arguments that just give us the new commits, and merge the new
commits into the simplified graph.
The graph is simplified in the sense that commits with exactly one
parent and one child (which is >90% of them in most cases) are grouped
together into arcs joining nodes or 'branch/merge points', which are
the commits that don't have exactly 1 parent and 1 child. This reduces
the size of the graph substantially and decreases the time to traverse
it correspondingly.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Mark Levedahl [Sun, 20 May 2007 15:45:50 +0000 (11:45 -0400)]
[PATCH] gitk: Allow specifying tabstop as other than default 8 characters.
Not all projects use the convention that one tabstop = 8 characters, and
a common convention is to use one tabstop = one level of indent. For such
projects, using 8 characters per tabstop often shows too much whitespace
per indent. This allows the user to configure the number of characters
to use per tabstop.
Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Mark Levedahl [Sun, 20 May 2007 15:45:49 +0000 (11:45 -0400)]
[PATCH] gitk: Update fontsize in patch / tree list
When adjusting fontsize (using ctrl+/-), all panes except the lower right
were updated. This fixes that.
Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Mark Levedahl [Sun, 20 May 2007 16:12:48 +0000 (12:12 -0400)]
[PATCH] gitk: Make selection highlight color configurable
Cygwin's tk by default uses a very dark selection background color that
makes the currently selected text almost unreadable. On linux, the default
selection background is a light gray which is very usable. This makes the
default a light gray everywhere but allows the user to configure the
color as well.
Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 21 May 2007 23:52:00 +0000 (09:52 +1000)]
gitk: Use the -q flag to git checkout
This avoids having gitk think that an error has occurred in the checkout.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Thu, 19 Apr 2007 01:39:12 +0000 (11:39 +1000)]
gitk: Allow user to choose whether to see the diff, old file, or new file
This adds a set of radiobuttons that select between displaying the full
diff (both - and + lines), the old file (suppressing the + lines) and the
new file (suppressing the - lines) in the diff display window.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Eygene Ryabinkin [Tue, 27 Mar 2007 10:36:59 +0000 (14:36 +0400)]
[PATCH] Improve look-and-feel of the gitk tool.
Made the default buttons on the dialog active and focused upon the
dialog appearence.
Bound 'Escape' and 'Return' keys to the dialog dismissal where it
was appropriate: mainly for dialogs with only one button and no
editable fields.
Unified the look of the "About gitk" and "Key bindings" dialogs.
Signed-off-by: Eygene Ryabinkin <rea-git@codelabs.ru>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Eygene Ryabinkin [Tue, 27 Mar 2007 10:36:12 +0000 (14:36 +0400)]
[PATCH] Teach gitk to use the user-defined UI font everywhere.
Some parts of gitk were not respecting the default GUI font. Most
of them were catched and fixed.
Signed-off-by: Eygene Ryabinkin <rea-git@codelabs.ru>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Brandon Casey [Mon, 19 Mar 2007 23:00:37 +0000 (18:00 -0500)]
[PATCH] prefer "git COMMAND" over "git-COMMAND" in gitk
Preferring git _space_ COMMAND over git _dash_ COMMAND allows the
user to have only git and gitk in their path. e.g. when git and gitk
are symbolic links in a personal bin directory to the real git and gitk.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Eric Wong [Fri, 23 Feb 2007 20:36:34 +0000 (12:36 -0800)]
[PATCH] gitk: bind <F5> key to Update (reread commits)
I chose <F5> because it's also the key to reload the current
page in web browsers such as Konqueror and Firefox, so users
are more likely to be familiar with it.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Mark Levedahl [Tue, 13 Feb 2007 00:19:34 +0000 (19:19 -0500)]
Make gitk save and restore window pane position on Linux and Cygwin.
Subtle bugs remained on both Cygwin and Linux that caused the various
window panes to be restored in positions different than where the user
last placed them. Sergey Vlasov posed a pair of suggested fixes to this,
what is done here is slightly different. The basic fix here involves
a) explicitly remembering and restoring the sash positions for the upper
window, and b) using paneconfigure to redundantly set height and width of
other elements. This redundancy is needed as Cygwin Tcl has a nasty habit
of setting pane sizes to zero if their slaves are not configured with a
specific size, but Linux Tcl does not honor the specific size given.
Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Mark Levedahl [Fri, 9 Feb 2007 03:22:24 +0000 (22:22 -0500)]
Make gitk save and restore the user set window position.
gitk was saving widget sizes and positions when the main window was
destroyed, which is after all child widgets are destroyed. The cure
is to trap the WM_DELETE_WINDOW event before the gui is torn down. Also,
the saved geometry was captured using "winfo geometry .", rather than
"wm geometry ." Under Linux, these two return different answers and the
latter one is correct.
[jc: credit goes to Brett Schwarz for suggesting the use of "wm protocol";
I also squashed the follow-up patch to remove extraneous -0
from expressions.]
Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Junio C Hamano [Tue, 30 Jan 2007 05:53:28 +0000 (21:53 -0800)]
[PATCH] gitk: Use show-ref instead of ls-remote
It used to be ls-remote on self was the only easy way to grab
the ref information. Now we have show-ref which does not
involve fork and IPC, so use it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Junio C Hamano [Thu, 1 Feb 2007 13:46:38 +0000 (08:46 -0500)]
[PATCH] Make gitk work reasonably well on Cygwin.
The gitk gui layout was completely broken on Cygwin. If gitk was started
without previous geometry in ~/.gitk, the user could drag the window sashes
to get a useable layout. However, if ~/.gitk existed, this was not possible
at all.
The fix was to rewrite makewindow, changing the toplevel containers and
the particular geometry information saved between sessions. Numerous bugs
in both the Cygwin and the Linux Tk versions make this a delicate
balancing act: the version here works in both but many subtle variants
are competely broken in one or the other environment.
Three user visible changes result:
1 - The viewer is fully functional under Cygwin.
2 - The search bar moves from the bottom to the top of the lower left
pane. This was necessary to get around a layout problem on Cygwin.
3 - The window size and position is saved and restored between sessions.
Again, this is necessary to get around a layout problem on Cygwin.
Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Mark Levedahl [Thu, 1 Feb 2007 13:44:46 +0000 (08:44 -0500)]
[PATCH] gitk - remove trailing whitespace from a few lines.
Signed-off-by: Mark Levedahl <mdl123@verizon.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Wed, 14 Feb 2007 21:54:34 +0000 (08:54 +1100)]
Change git repo-config to git config
This is the gitk part of
e0d10e1c63bc52b37bbec99b07deee794058d9b4
from Tom Prince.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Peter Baumann [Tue, 9 Jan 2007 14:30:19 +0000 (15:30 +0100)]
[PATCH] Make gitk work when launched in a subdirectory
Make gitk use git-rev-parse --git-dir to find the repository.
Signed-off-by: Peter Baumann <siprbaum@stud.informatik.uni-erlangen.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Doug Maxey [Sun, 10 Dec 2006 20:31:46 +0000 (14:31 -0600)]
[PATCH] gitk: add current directory to main window title
This can help people keep track of which gitk is which, when they
have several on the screen.
Signed-off-by: Doug Maxey <dwm@enoyolf.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Thu, 23 Nov 2006 10:06:16 +0000 (21:06 +1100)]
gitk: Fix enabling/disabling of menu items on Mac OS X
It seems that under Mac OS X, the menus get some extra entries (or
possibly fewer entries), leading to references to entries by an
absolute number being off. This leads to an error when invoking
gitk --all under Mac OS X, because the "Edit view" and "Delete view"
entries aren't were gitk expects them, and so enabling them gives an
error.
This changes the code so it refers to menu entries by their content,
which should solve the problem.
Signed-off-by: Paul Mackerras <paulus@samba.org>
OGAWA Hirofumi [Wed, 27 Sep 2006 03:32:19 +0000 (12:32 +0900)]
[PATCH] gitk: Fix nextfile() and add prevfile()
The current nextfile() jumps to last hunk, but I think this is not
intention, probably, it's forgetting to add "break;". And this
patch also adds prevfile(), it jumps to previous hunk.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 28 Aug 2006 12:41:09 +0000 (22:41 +1000)]
gitk: Fix some bugs in the new cherry-picking code
When inserting the new commit row for the cherry-picked commit, we weren't
advancing the selected line (if there is one), and we weren't updating
commitlisted properly.
Paul Mackerras [Wed, 16 Aug 2006 10:02:32 +0000 (20:02 +1000)]
gitk: Improve responsiveness while reading and layout out the graph
This restructures layoutmore so that it can take a time limit and do
limited amounts of graph layout and graph optimization, and return 1
if it exceeded the time limit before finishing everything it could do.
Also getcommitlines reads at most half a megabyte each time, to limit
the time it spends parsing the commits to about a tenth of a second.
Also got rid of the unused ncmupdate variable while I was at it.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Tue, 8 Aug 2006 10:55:36 +0000 (20:55 +1000)]
gitk: Update preceding/following tag info when creating a tag
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sun, 6 Aug 2006 11:08:05 +0000 (21:08 +1000)]
gitk: Add a menu item for cherry-picking commits
This does a git-cherry-pick -r to cherry-pick the commit that was
right-clicked on to the head of the current branch. This would work
better with some minor changes to the git-cherry-pick script.
Along the way, this changes desc_heads to record the names of the
descendent heads rather than their IDs.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Wed, 2 Aug 2006 09:43:34 +0000 (19:43 +1000)]
gitk: Fix a couple of buglets in the branch head menu items
This fixes a silly typo (an extra a) and fixes the condition for
asking for confirmation of removing a branch.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Tue, 1 Aug 2006 23:52:01 +0000 (09:52 +1000)]
gitk: Add a context menu for heads
This menu allows you to check out a branch and to delete a branch.
If you ask to delete a branch that has commits that aren't on any
other branch, gitk will prompt for confirmation before doing the
deletion.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Tue, 1 Aug 2006 23:41:04 +0000 (09:41 +1000)]
gitk: Add a row context-menu item for creating a new branch
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Tue, 1 Aug 2006 23:38:10 +0000 (09:38 +1000)]
gitk: Recompute ancestor/descendent heads/tags when rereading refs
We weren't updating the desc_heads, desc_tags and anc_tags arrays when
rereading the set of heads/tags/etc. The tricky thing to get right
here is restarting the computation correctly when we are only half-way
through it.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 17 Jul 2006 15:52:14 +0000 (01:52 +1000)]
gitk: Minor cleanups
Removed some unnecessary quotes and globals, updated copyright notice.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Thu, 6 Jul 2006 00:21:23 +0000 (10:21 +1000)]
gitk: Show the currently checked-out head in bold font
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Wed, 5 Jul 2006 12:56:37 +0000 (22:56 +1000)]
gitk: Allow the user to set some colors
This makes the colors for the diff old/new lines and hunk headers
configurable, as well as the background and foreground (text color)
of the various panes. There is now a GUI in the edit->preferences
window to set them.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Junio C Hamano [Sun, 11 Jun 2006 16:50:47 +0000 (09:50 -0700)]
[PATCH] gitk: rereadrefs needs listrefs
The listrefs procedure was inadvertently removed during the course of
development, but there is still a user of it, so resurrect it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Tue, 6 Jun 2006 23:19:45 +0000 (09:19 +1000)]
gitk: Re-read the descendent/ancestor tag & head info on update
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sun, 4 Jun 2006 01:50:38 +0000 (11:50 +1000)]
gitk: Show branch name(s) as well, if "show nearby tags" is enabled
This is a small extension to the code that reads the complete commit
graph, to make it compute descendent heads as well as descendent tags.
We don't exclude descendent heads that are descendents of other
descendent heads as we do for tags, since it is useful to know all the
branches that a commit is on.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Sat, 3 Jun 2006 09:11:13 +0000 (19:11 +1000)]
gitk: Show nearby tags
This adds a feature to the diff display window where it will show
the tags that this commit follows (is a descendent of) and precedes
(is an ancestor of). Specifically, it will show the tags for all
tagged descendents that are not a descendent of another tagged
descendent of this commit, and the tags for all tagged ancestors
that are not ancestors of another tagged ancestor of this commit.
To do this, gitk reads the complete commit graph using git rev-list
and performs a couple of traversals of the tree. This is done in
the background, but since it can be time-consuming, there is an option
to turn it off in the `edit preferences' window.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Tue, 30 May 2006 11:35:07 +0000 (21:35 +1000)]
Merge branch 'master' into new
Conflicts:
gitk
Paul Mackerras [Tue, 30 May 2006 11:33:07 +0000 (21:33 +1000)]
gitk: Add a goto next/previous highlighted commit function
This is invoked by shift-down/shift-up. It relies on a patch to
git-diff-tree that has recently gone into the git repository, commit
ID
e0c97ca6 (without this it may just sit there doing waiting for
git-diff-tree when looking for the next/previous highlight).
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 29 May 2006 09:50:02 +0000 (19:50 +1000)]
gitk: Provide ability to highlight based on relationship to selected commit
This provides a way to highlight commits that are, or are not,
descendents or ancestors of the currently selected commit. It's
still rough around the edges but seems to be useful even so.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Fri, 26 May 2006 12:34:30 +0000 (22:34 +1000)]
gitk: show_error fix
Bug noted by Junio C Hamano: show_error can be passed "." (root
window) as its $w argument, but appending ".m" and ".ok" results in
creating "..m" and "..ok" as window paths, which were invalid.
This fixes it in a slightly different way from Junio's patch, though.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Junio C Hamano [Fri, 26 May 2006 07:07:15 +0000 (00:07 -0700)]
[PATCH] gitk: start-up bugfix
The code to extract a message part from the error message was
not passing the error message to [string range], and resulted
in the show_error not getting called.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Timo Hirvonen [Wed, 24 May 2006 07:57:40 +0000 (10:57 +0300)]
[PATCH] gitk: Replace "git-" commands with "git "
git-* commands work only if gitexecdir is in PATH.
Signed-off-by: Timo Hirvonen <tihirvon@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Fri, 26 May 2006 12:22:48 +0000 (22:22 +1000)]
gitk: Fix bug in highlight stuff when no line is selected
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Fri, 26 May 2006 00:43:47 +0000 (10:43 +1000)]
gitk: Move "pickaxe" find function to highlight facility
This removes the "Files" and "Pickaxe" parts of the "Find" function,
so Find is now just about searching the commit data. We now highlight
the commits that match the Find string (without having to press Find),
and have a drop-down menu for selecting whether the git-diff-tree based
highlighting is done on paths or on adding/removing a given string.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Thu, 25 May 2006 11:25:13 +0000 (21:25 +1000)]
gitk: Improve the text window search function
This makes it work a bit more smoothly, and adds a reverse-search
function, for which I stole the ^R binding from the find function.
Signed-off-by: Paul Mackerras <paulus@samba.org>