Do the fuzzy rename detection limits with the exact renames removed
When we do the fuzzy rename detection, we don't care about the
destinations that we already handled with the exact rename detector.
And, in fact, the code already knew that - but the rename limiter, which
used to run *before* exact renames were detected, did not.
This fixes it so that the rename detection limiter now bases its
decisions on the *remaining* rename counts, rather than the original
ones.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix ugly magic special case in exact rename detection
For historical reasons, the exact rename detection had populated the
filespecs for the entries it compared, and the rest of the similarity
analysis depended on that. I hadn't even bothered to debug why that was
the case when I re-did the rename detection, I just made the new one
have the same broken behaviour, with a note about this special case.
This fixes that fixme. The reason the exact rename detector needed to
fill in the file sizes of the files it checked was that the _inexact_
rename detector was broken, and started comparing file sizes before it
filled them in.
Fixing that allows the exact phase to do the sane thing of never even
caring (since all *it* cares about is really just the SHA1 itself, not
the size nor the contents).
It turns out that this also indirectly fixes a bug: trying to populate
all the filespecs will run out of virtual memory if there is tons and
tons of possible rename options. The fuzzy similarity analysis does the
right thing in this regard, and free's the blob info after it has
generated the hash tables, so the special case code caused more trouble
than just some extra illogical code.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Do exact rename detection regardless of rename limits
Now that the exact rename detection is linear-time (with a very small
constant factor to boot), there is no longer any reason to limit it by
the number of files involved.
In some trivial testing, I created a repository with a directory that
had a hundred thousand files in it (all with different contents), and
then moved that directory to show the effects of renaming 100,000 files.
With the new code, that resulted in
[torvalds@woody big-rename]$ time ~/git/git show -C | wc -l
400006
real 0m2.071s
user 0m1.520s
sys 0m0.576s
ie the code can correctly detect the hundred thousand renames in about 2
seconds (the number "400006" comes from four lines for each rename:
diff --git a/really-big-dir/file-1-1-1-1-1 b/moved-big-dir/file-1-1-1-1-1
similarity index 100%
rename from really-big-dir/file-1-1-1-1-1
rename to moved-big-dir/file-1-1-1-1-1
and the extra six lines is from a one-liner commit message and all the
commit information and spacing).
Most of those two seconds weren't even really the rename detection, it's
really all the other stuff needed to get there.
With the old code, this wouldn't have been practically possible. Doing
a pairwise check of the ten billion possible pairs would have been
prohibitively expensive. In fact, even with the rename limiter in
place, the old code would waste a lot of time just on the diff_filespec
checks, and despite not even trying to find renames, it used to look
like:
[torvalds@woody big-rename]$ time git show -C | wc -l 1400006
real 0m12.337s
user 0m12.285s
sys 0m0.192s
ie we used to take 12 seconds for this load and not even do any rename
detection! (The number 1400006 comes from fourteen lines per file moved:
seven lines each for the delete and the create of a one-liner file, and
the same extra six lines of commit information).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Do linear-time/space rename logic for exact renames
This implements a smarter rename detector for exact renames, which
rather than doing a pairwise comparison (time O(m*n)) will just hash the
files into a hash-table (size O(n+m)), and only do pairwise comparisons
to renames that have the same hash (time O(n+m) except for unrealistic
hash collissions, which we just cull aggressively).
Admittedly the exact rename case is not nearly as interesting as the
generic case, but it's an important case none-the-less. A similar general
approach should work for the generic case too, but even then you do need
to handle the exact renames/copies separately (to avoid the inevitable
added cost factor that comes from the _size_ of the file), so this is
worth doing.
In the expectation that we will indeed do the same hashing trick for the
general rename case, this code uses a generic hash-table implementation
that can be used for other things too. In fact, we might be able to
consolidate some of our existing hash tables with the new generic code
in hash.[ch].
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
copy vs rename detection: avoid unnecessary O(n*m) loops
The core rename detection had some rather stupid code to check if a
pathname was used by a later modification or rename, which basically
walked the whole pathname space for all renames for each rename, in
order to tell whether it was a pure rename (no remaining users) or
should be considered a copy (other users of the source file remaining).
That's really silly, since we can just keep a count of users around, and
replace all those complex and expensive loops with just testing that
simple counter (but this all depends on the previous commit that shared
the diff_filespec data structure by using a separate reference count).
Note that the reference count is not the same as the rename count: they
behave otherwise rather similarly, but the reference count is tied to
the allocation (and decremented at de-allocation, so that when it turns
zero we can get rid of the memory), while the rename count is tied to
the renames and is decremented when we find a rename (so that when it
turns zero we know that it was a rename, not a copy).
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Rather than copy the filespecs when introducing new versions of them
(for rename or copy detection), use a refcount and increment the count
when reusing the diff_filespec.
This avoids unnecessary allocations, but the real reason behind this is
a future enhancement: we will want to track shared data across the
copy/rename detection. In order to efficiently notice when a filespec
is used by a rename, the rename machinery wants to keep track of a
rename usage count which is shared across all different users of the
filespec.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Split out "exact content match" phase of rename detection
This makes the exact content match a separate function of its own.
Partly to cut down a bit on the size of the diffcore_rename() function
(which is too complex as it is), and partly because there are smarter
ways to do this than an O(m*n) loop over it all, and that function
should be rewritten to take that into account.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The code generating perl/Makefile from Makefile.PL was causing trouble
because it didn't considered NO_PERL_MAKEMAKER and ran makemaker
unconditionally, rewriting perl.mak. Makemaker is FUBAR in ActiveState Perl,
and perl/Makefile has a replacement for it.
Besides, a changed Git.pm is *NOT* a reason to rebuild all the perl scripts,
so remove the dependency too.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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: Shawn O. Pearce <spearce@spearce.org>
* db/fetch-pack: (60 commits)
Define compat version of mkdtemp for systems lacking it
Avoid scary errors about tagged trees/blobs during git-fetch
fetch: if not fetching from default remote, ignore default merge
Support 'push --dry-run' for http transport
Support 'push --dry-run' for rsync transport
Fix 'push --all branch...' error handling
Fix compilation when NO_CURL is defined
Added a test for fetching remote tags when there is not tags.
Fix a crash in ls-remote when refspec expands into nothing
Remove duplicate ref matches in fetch
Restore default verbosity for http fetches.
fetch/push: readd rsync support
Introduce remove_dir_recursively()
bundle transport: fix an alloc_ref() call
Allow abbreviations in the first refspec to be merged
Prevent send-pack from segfaulting when a branch doesn't match
Cleanup unnecessary break in remote.c
Cleanup style nit of 'x == NULL' in remote.c
Fix memory leaks when disconnecting transport instances
Ensure builtin-fetch honors {fetch,transfer}.unpackLimit
...
git-remote: fix "Use of uninitialized value in string ne"
martin f krafft <madduck@madduck.net> writes:
> piper:~> git remote show origin
> * remote origin
> URL: ssh://git.madduck.net/~/git/etc/mailplate.git
> Use of uninitialized value in string ne at /usr/local/stow/git/bin/git-remote line 248.
This is because there might not be branch.<name>.remote defined but
the code unconditionally dereferences $branch->{$name}{'REMOTE'} and
compares with another string.
Tested-by: Martin F Krafft <madduck@madduck.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
First, paths ending in a slash were not matching anything. This fixes
path_filter to handle paths ending in a slash (such entries have to
match a directory, and can't match a file, e.g., foo/bar/ can't match
a plain file called foo/bar).
Secondly, clicking in the file list pane (bottom right) was broken
because $treediffs($ids) contained all the files modified by the
commit, not just those within the file list. This fixes that too.
git-gui: Make sure we get errors from git-update-index
I'm seeing a lot of silent failures from git-update-index on
Windows and this is leaving the index.lock file intact, which
means users are later unable to perform additional operations.
When the index is locked behind our back and we are unable to
use it we may need to allow the user to delete the index lock
and try again. However our UI state is probably not currect
as we have assumed that some changes were applied but none of
them actually did. A rescan is the easiest (in code anyway)
solution to correct our UI to show what the index really has
(or doesn't have).
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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.
gitk: Integrate the reset progress bar in the main frame
This makes the reset function use a progress bar in the same location
as the progress bars for reading in commits and for finding commits,
instead of a progress bar in a separate detached window. The progress
bar for resetting is red.
This also puts "Resetting" in the status window while the reset is in
progress. The setting of the status window is done through an
extension of the interface used for setting the watch cursor.
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.
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.
Use PRIuMAX instead of 'unsigned long long' in show-index
Elsewhere in Git we already use PRIuMAX and cast to uintmax_t when
we need to display a value that is 'very big' and we're not exactly
sure what the largest display size is for this platform.
This particular fix is needed so we can do the incredibly crazy
temporary hack of:
allowing us to more easily look for locations where we are passing
a pointer to an 8 byte value to a function that expects a 4 byte
value. This can occur on some platforms where sizeof(long) == 8
and sizeof(size_t) == 4.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
* maint:
Describe more 1.5.3.5 fixes in release notes
Fix diffcore-break total breakage
Fix directory scanner to correctly ignore files without d_type
Improve receive-pack error message about funny ref creation
fast-import: Fix argument order to die in file_change_m
git-gui: Don't display CR within console windows
git-gui: Handle progress bars from newer gits
git-gui: Correctly report failures from git-write-tree
gitk.txt: Fix markup.
send-pack: respect '+' on wildcard refspecs
git-gui: accept versions containing text annotations, like 1.5.3.mingw.1
git-gui: Don't crash when starting gitk from a browser session
git-gui: Allow gitk to be started on Cygwin with native Tcl/Tk
git-gui: Ensure .git/info/exclude is honored in Cygwin workdirs
git-gui: Handle starting on mapped shares under Cygwin
git-gui: Display message box when we cannot find git in $PATH
git-gui: Avoid using bold text in entire gui for some fonts
Ok, so on the kernel list, some people noticed that "git log --follow"
doesn't work too well with some files in the x86 merge, because a lot of
files got renamed in very special ways.
In particular, there was a pattern of doing single commits with renames
that looked basically like
- rename "filename.h" -> "filename_64.h"
- create new "filename.c" that includes "filename_32.h" or
"filename_64.h" depending on whether we're 32-bit or 64-bit.
which was preparatory for smushing the two trees together.
Now, there's two issues here:
- "filename.c" *remained*. Yes, it was a rename, but there was a new file
created with the old name in the same commit. This was important,
because we wanted each commit to compile properly, so that it was
bisectable, so splitting the rename into one commit and the "create
helper file" into another was *not* an option.
So we need to break associations where the contents change too much.
Fine. We have the -B flag for that. When we break things up, then the
rename detection will be able to figure out whether there are better
alternatives.
- "git log --follow" didn't with with -B.
Now, the second case was really simple: we use a different "diffopt"
structure for the rename detection than the basic one (which we use for
showing the diffs). So that second case is trivially fixed by a trivial
one-liner that just copies the break_opt values from the "real" diffopts
to the one used for rename following. So now "git log -B --follow" works
fine:
however, the end result does *not* work. Because our diffcore-break.c
logic is totally bogus!
In particular:
- it used to do
if (base_size < MINIMUM_BREAK_SIZE)
return 0; /* we do not break too small filepair */
which basically says "don't bother to break small files". But that
"base_size" is the *smaller* of the two sizes, which means that if some
large file was rewritten into one that just includes another file, we
would look at the (small) result, and decide that it's smaller than the
break size, so it cannot be worth it to break it up! Even if the other
side was ten times bigger and looked *nothing* like the samell file!
That's clearly bogus. I replaced "base_size" with "max_size", so that
we compare the *bigger* of the filepair with the break size.
- It calculated a "merge_score", which was the score needed to merge it
back together if nothing else wanted it. But even if it was *so*
different that we would never want to merge it back, we wouldn't
consider it a break! That makes no sense. So I added
if (*merge_score_p > break_score)
return 1;
to make it clear that if we wouldn't want to merge it at the end, it
was *definitely* a break.
- It compared the whole "extent of damage", counting all inserts and
deletes, but it based this score on the "base_size", and generated the
damage score with
but that makes no sense either, since quite often, this will result in
a number that is *bigger* than MAX_SCORE! Why? Because base_size is
(again) the smaller of the two files we compare, and when you start out
from a small file and add a lot (or start out from a large file and
remove a lot), the base_size is going to be much smaller than the
damage!
Again, the fix was to replace "base_size" with "max_size", at which
point the damage actually becomes a sane percentage of the whole.
With these changes in place, not only does "git log -B --follow" work for
the case that triggered this in the first place, ie now
actually gives reasonable results. But I also wanted to verify it in
general, by doing a full-history
git log --stat -B -C
on my kernel tree with the old code and the new code.
There's some tweaking to be done, but generally, the new code generates
much better results wrt breaking up files (and then finding better rename
candidates). Here's a few examples of the "--stat" output:
Now, in some other cases, it does actually turn a rename into a real
"delete+create" pair, and then the diff is usually bigger, so truth in
advertizing: it doesn't always generate a nicer diff. But for what -B was
meant for, I think this is a big improvement, and I suspect those cases
where it generates a bigger diff are tweakable.
So I think this diff fixes a real bug, but we might still want to tweak
the default values and perhaps the exact rules for when a break happens.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Fix directory scanner to correctly ignore files without d_type
On Fri, 19 Oct 2007, Todd T. Fries wrote:
> If DT_UNKNOWN exists, then we have to do a stat() of some form to
> find out the right type.
That happened in the case of a pathname that was ignored, and we did
not ask for "dir->show_ignored". That test used to be *together*
with the "DTYPE(de) != DT_DIR", but splitting the two tests up
means that we can do that (common) test before we even bother to
calculate the real dtype.
Of course, that optimization only matters for systems that don't
have, or don't fill in DTYPE properly.
I also clarified the real relationship between "exclude" and
"dir->show_ignored". It used to do
if (exclude != dir->show_ignored) {
..
which wasn't exactly obvious, because it triggers for two different
cases:
- the path is marked excluded, but we are not interested in ignored
files: ignore it
- the path is *not* excluded, but we *are* interested in ignored
files: ignore it unless it's a directory, in which case we might
have ignored files inside the directory and need to recurse
into it).
so this splits them into those two cases, since the first case
doesn't even care about the type.
I also made a the DT_UNKNOWN case a separate helper function,
and added some commentary to the cases.
Linus
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Avoid a dup2(2) in apply_filter() - start_command() can do it for us.
When apply_filter() runs the external (clean or smudge) filter program, it
needs to pass the writable end of a pipe as its stdout. For this purpose,
it used to dup2(2) the file descriptor explicitly to stdout. Now we use
the facilities of start_command() to do it for us.
Furthermore, the path argument of a subordinate function, filter_buffer(),
was not used, so here we replace it to pass the fd instead.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
t0021-conversion.sh: Test that the clean filter really cleans content.
This test uses a rot13 filter, which is its own inverse. It tested only
that the content was the same as the original after both the 'clean' and
the 'smudge' filter were applied. This way it would not detect whether
any filter was run at all. Hence, here we add another test that checks
that the repository contained content that was processed by the 'clean'
filter.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
upload-pack: Run rev-list in an asynchronous function.
This gets rid of an explicit fork().
Since upload-pack has to coordinate two processes (rev-list and
pack-objects), we cannot use the normal finish_async(), but have to monitor
the process explicitly. Hence, there are no changes at this front.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
upload-pack: Move the revision walker into a separate function.
This allows us later to use start_async() with this function, and at
the same time is a nice cleanup that makes a long function
(create_pack_file()) shorter.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Use the asyncronous function infrastructure in builtin-fetch-pack.c.
We run the sideband demultiplexer in an asynchronous function.
Note that earlier there was a check in the child process that closed
xd[1] only if it was different from xd[0]; this test is no longer needed
because git_connect() always returns two different file descriptors
(see ec587fde0a76780931c7ac32474c8c000aa45134).
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Add infrastructure to run a function asynchronously.
This adds start_async() and finish_async(), which runs a function
asynchronously. Communication with the caller happens only via pipes.
For this reason, this implementation forks off a child process that runs
the function.
[sp: Style nit fixed by removing unnecessary block on if condition
inside of start_async()]
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
upload-pack: Use start_command() to run pack-objects in create_pack_file().
This gets rid of an explicit fork/exec.
Since upload-pack has to coordinate two processes (rev-list and
pack-objects), we cannot use the normal finish_command(), but have to
monitor the processes explicitly. Hence, the waitpid() call remains.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Have start_command() create a pipe to read the stderr of the child.
This adds another stanza that allocates a pipe that is connected to the
child's stderr and that the caller can read from. In order to request this
pipe, the caller sets cmd->err to -1.
The implementation is not exactly modeled after the stdout case: For stdout
the caller can supply an existing file descriptor, but this facility is
nowhere needed in the stderr case. Additionally, the caller is required to
close cmd->err.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Change git_connect() to return a struct child_process instead of a pid_t.
This prepares the API of git_connect() and finish_connect() to operate on
a struct child_process. Currently, we just use that object as a placeholder
for the pid that we used to return. A follow-up patch will change the
implementation of git_connect() and finish_connect() to make full use
of the object.
Old code had early-return-on-error checks at the calling sites of
git_connect(), but since git_connect() dies on errors anyway, these checks
were removed.
[sp: Corrected style nit of "conn == NULL" to "!conn"]
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
* git://git.kernel.org/pub/scm/gitk/gitk:
gitk: Fix "can't unset prevlines(...)" Tcl error
gitk: Avoid an error when cherry-picking if HEAD has moved on
gitk: Check that we are running on at least Tcl/Tk 8.4
gitk: Do not pick up file names of "copy from" lines
gitk: Add support for OS X mouse wheel
gitk: disable colours when calling git log
Merge branch 'maint' of git://repo.or.cz/git-gui into maint
* 'maint' of git://repo.or.cz/git-gui:
git-gui: Don't display CR within console windows
git-gui: Handle progress bars from newer gits
git-gui: Correctly report failures from git-write-tree
git-gui: accept versions containing text annotations, like 1.5.3.mingw.1
git-gui: Don't crash when starting gitk from a browser session
git-gui: Allow gitk to be started on Cygwin with native Tcl/Tk
git-gui: Ensure .git/info/exclude is honored in Cygwin workdirs
git-gui: Handle starting on mapped shares under Cygwin
git-gui: Display message box when we cannot find git in $PATH
git-gui: Avoid using bold text in entire gui for some fonts
This fixes the error reported by Michele Ballabio, where gitk will
throw a Tcl error "can't unset prevlines(...)" when displaying a
commit that has a parent commit listed more than once, and the commit
is the first child of that parent.
The problem was basically that we had two variables, prevlines and
lineends, and were relying on the invariant that prevlines($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.
Define compat version of mkdtemp for systems lacking it
Solaris 9 doesn't have mkdtemp() so we need to emulate it for the
rsync transport implementation. Since Solaris 9 is lacking this
function we can also reasonably assume it is not available on
Solaris 8 either. The new Makfile definition NO_MKDTEMP can be
set to enable the git compat version.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Deduce exec_path also from calls to git with a relative path
There is already logic in the git wrapper to deduce the exec_path from
argv[0], when the git wrapper was called with an absolute path. Extend
that logic to handle relative paths as well.
For example, when you call "../../hello/world/git", it will not turn
"../../hello/world" into an absolute path, and use that.
Initial implementation by Scott R Parish.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
fast-import: Fix argument order to die in file_change_m
The arguments to the "Not a blob" die call in file_change_m were
transposed, so that the command was printed as the type, and the type
as the command. Switch them around so that the error message comes
out correctly.
Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Git progress bars from tools like git-push and git-fetch use CR
to skip back to the start of the current line and redraw it with
an updated progress. We were doing this in our Tk widget but had
failed to skip the CR, which Tk doesn't draw well.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Post Git 1.5.3 a new style progress bar has been introduced that
uses only one line rather than two. The formatting of the completed
and total section is also slightly different so we must adjust our
regexp to match. Unfortunately both styles are in active use by
different versions of Git so we need to look for both.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The current git-p4 implementation does support file renames. However, because
it does not use the "p4 integrate" command, the history for the renamed file is
not linked to the new file.
This changeset adds support for perforce renames with the integrate command.
Currently this feature is only enabled when calling git-p4 submit with the -M
option. This is intended to look and behave similar to the "detect renames"
feature of other git commands.
The following sequence is used for renamed files:
p4 integrate -Dt x x'
p4 edit x'
rm x'
git apply
p4 delete x
By default, perforce will not allow an integration with a target file that has
been deleted. That is, if x' in the example above is the name of a previously
deleted file then perforce will fail the integrate. The -Dt option tells
perforce to allow the target of integrate to be a previously deleted file.
Signed-off-by: Chris Pettitt <cpettitt@gmail.com> Signed-off-by: Simon Hausmann <simon@lst.de>
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.
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).
git-gui: Correctly report failures from git-write-tree
If git-write-tree fails (such as if the index file is currently
locked and it wants to write to it) we were not getting the error
message as $tree_id was always the empty string so we shortcut
through the catch and never got the output from stderr.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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>
(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>
When matching source and destination refs, we were failing
to pull the 'force' parameter from wildcard refspecs (but
not explicit ones) and attach it to the ref struct.
This adds a test for explicit and wildcard refspecs; the
latter fails without this patch.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The logic in stopfinding assumes that findcurline will be set if
find_dirn is, but findnext and findprev can set find_dirn without
setting findcurline. This makes sure we only set find_dirn in those
places if findcurline is already set.
Avoid scary errors about tagged trees/blobs during git-fetch
This is the same bug as 42a32174b600f139b489341b1281fb1bfa14c252.
The warning "Object $X is a tree, not a commit" is bogus and is
not relevant here. If its not a commit we just need to make sure
we don't mark it for merge as we fill out FETCH_HEAD.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
In 89d750bf6fa025edeb31ad258cdd09a27a5c02fa I got a little too
aggressive with changing "git diff" to "git diff-tree". This is
shown to the user, who expects to see a full diff on their console,
and will want to see the output of their custom diff drivers (if
any) as the whole point of this call site is to show the diff to
the end-user.
Noticed by Johannes Sixt <j.sixt@viscovery.net>.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
* maint:
Further 1.5.3.5 fixes described in release notes
Avoid invoking diff drivers during git-stash
attr: fix segfault in gitattributes parsing code
Define NI_MAXSERV if not defined by operating system
Ensure we add directories in the correct order
Avoid scary errors about tagged trees/blobs during git-fetch
Stop displaying "Pack pack-$ID created." during git-gc
Discussion on the list tonight came to the conclusion that showing
the name of the packfile we just created during git-repack is not
a very useful message for any end-user. For the really technical
folk who need to have the name of the newest packfile they can use
something such as `ls -t .git/objects/pack | head -2` to find the
most recently created packfile.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Teach prune-packed to use the standard progress meter
Rather than reimplementing the progress meter logic and always
showing 100 lines of output while pruning already packed objects
we now use a delayed progress meter and only show it if there are
enough objects to make us take a little while.
Most users won't see the message anymore as it usually doesn't take
very long to delete the already packed loose objects. This neatens
the output of a git-gc or git-repack execution, which is especially
important for a `git gc --auto` triggered from within another
command.
We perform the display_progress() call from within the very innermost
loop in case we spend more than 1 second within any single object
directory. This ensures that a progress_update event from the
timer will still trigger in a timely fashion and allow the user to
see the progress meter.
While I'm in here I changed the message to be more descriptive of
its actual task. "Removing unused objects" is a little scary for
new users as they wonder where these unused objects came from and
how they should avoid them. Truth is these objects aren't unused
in the sense of what git-prune would call a dangling object, these
are used but are just duplicates of things we have already stored
in a packfile.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Change 'Deltifying objects' to 'Compressing objects'
Recently I was referred to the Grammar Police as the git-pack-objects
progress message 'Deltifying %u objects' is considered to be not
proper English to at least some small but vocal segment of the
English speaking population. Techncially we are applying delta
compression to these objects at this stage, so the new term is
slightly more acceptable to the Grammar Police but is also just
as correct.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Documentation/git-gc: improve description of --auto
This patch tries to make the description of --auto a little
more clear for new users, especially those referred by the
"git-gc --auto" notification message.
It also cleans up some grammatical errors and typos in the
original description, as well as rewording for clarity.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Documentation/git-gc: explain --auto in description
Now that git-gc --auto tells the user to look at the man
page, it makes sense to mention the auto behavior near the
top (since this is likely to be most users' first exposure
to git-gc).
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The previous message had too much of a "boy, you should
really turn off this annoying gc" flair to it. Instead,
let's make sure the user understands what is happening, that
they can run it themselves, and where to find more info.
Suggested by Brian Gernhardt.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
git-stash needs to restrict itself to plumbing when running automated
diffs as part of its operation as the user may have configured a
custom diff driver that opens an interactive UI for certain/all
files. Doing that during scripted actions is very unfriendly to
the end-user and may cause git-stash to fail to work.
Reported by Johannes Sixt
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
git may segfault if gitattributes contains an invalid
entry. A test is added to t0020 that triggers the segfault.
The parsing code is fixed to avoid the crash.
Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Define NI_MAXSERV if not defined by operating system
I found I needed NI_MAXSERV as it is defined in netdb.h, which is
not included by daemon.c. Rather than including the whole header
we can define a reasonable fallback value.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Avoid scary errors about tagged trees/blobs during git-fetch
Ok, what is going on is:
- append_fetch_head() looks up the SHA1 for all heads (including tags):
if (get_sha1(head, sha1))
return error("Not a valid object name: %s", head);
- it then wants to check if it's a candidate for merging (because
fetching also does the whole "list which heads to merge" in case
it is going to be part of a "pull"):
commit = lookup_commit_reference(sha1);
if (!commit)
not_for_merge = 1;
- and that "lookup_commit_reference()" is just very vocal about the
case where it fails. It really shouldn't be, and it shouldn't
affect the actual end result, but that basically explains why
you get that scary warning.
In short, the warning is just bogus, and should be harmless, but
I agree that it's ugly. I think the appended patch should fix it.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>