This avoids the following failure with normal "get_dir" on newer
versions of SVN (tested with SVN 1.8.8-1ubuntu3.1):
Incorrect parameters given: Could not convert '%ld' into a number
get_dir2 also has the potential to be more efficient by requesting
less data.
ref: <1414636504.45506.YahooMailBasic@web172304.mail.ir2.yahoo.com>
ref: <1414722617.89476.YahooMailBasic@web172305.mail.ir2.yahoo.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Cc: Hin-Tak Leung <htl10@users.sourceforge.net>
Memoizing these initialization functions saves some memory for
long fetches which require scanning many unwanted revisions
before any wanted revisions happen.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
This should help me track down errors in git-svn more easily:
write .git/Git_XXXXXX: Bad file descriptor
at /usr/lib/perl5/SVN/Ra.pm line 623
Signed-off-by: Eric Wong <normalperson@yhbt.net>
This memoization appears unneeded as the check_cherry_pick2 cache is
in front of it does enough.
With this change applied, importing from local svn+ssh and http copies
of the R repo[1] takes only 2:00 (2 hours) on my system and the git-svn
process never uses more than 60MB RSS on my x86-64 GNU/Linux system[2].
This 60M measurement is only for the git-svn Perl process itself and
does not include memory used by git subprocesses accessing large packs
(subprocess memory usage _is_ measured by my time(1) tool).
Before this change, an import took longer (2:20) on svn+ssh:// but
git-svn used around 240MB during the imports. Worse yet, git-svn
ballooned to over 400M when writing out the cache to the filesystem.
I also tried removing memoization for `has_no_changes', too, but a
local copy of the R repository(*) was not close to finishing within
10 hours on my system.
[1] http://svn.r-project.org/R
[2] file:// repos causes libsvn to use more memory internally
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Cc: Hin-Tak Leung <htl10@users.sourceforge.net>
There is no reason to keep entries in the %revs hash after we're
done processing a revision, so allow entries become freed as
processing continues.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
This override was probably never necessary, but most likely a no-op
as it does not appear to do anything in SVN::Ra itself.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Despite attempting to use local memory pools everywhere we can,
(including our call to SVN::Ra::do_update and all subsequent reporter
calls), there does not appear to be a way to force the Git::SVN::Fetcher
callbacks to use a pool other than the per-SVN::Ra pool.
Git::SVN::Fetcher ends up using the main RA pool which grows
monotonically in size for the lifetime of the RA object.
Thus the only way to free that memory appears to be to destroy and
recreate the RA connection for at every --log-window-size interval.
This reduces memory usage over the course of fetching 10K revisions
using a test repository created with the script at the end of this
commit message.
As reported by time(1) on my x86-64 system:
before: 54024k
after: 28680k
Unfortunately, there remains some yet-to-be-tracked-down slow memory
growth which would be evident as the `nr' parameter increases in
the repository generation script:
-----------------------------8<------------------------------
set -e
tmp=$(mktemp -d svntestrepo-XXXXXXXX)
svnadmin create "$tmp"
repo=file://"$(cd $tmp && pwd)"
svn co "$repo" "$tmp/wd"
cd "$tmp/wd"
if ! test -f a
then
> a
svn add a
svn commit -m 'A'
fi
nr=10000
while test $nr -gt 0
do
echo $nr > a
svn commit -q -m A
nr=$((nr - 1))
done
echo "repository created in $repo"
-----------------------------8<------------------------------
Signed-off-by: Eric Wong <normalperson@yhbt.net>
This should further reduce memory usage from the new mergeinfo
speedups without hurting performance too much, assuming
reasonable latency to the SVN server.
Cc: Hin-Tak Leung <htl10@users.sourceforge.net>
Suggested-by: Jakob Stoklund Olesen <stoklund@2pi.dk>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
This should reduce excessive memory usage from the new mergeinfo
caches without hurting performance too much, assuming reasonable
latency to the SVN server.
Cc: Hin-Tak Leung <htl10@users.sourceforge.net>
Suggested-by: Jakob Stoklund Olesen <stoklund@2pi.dk>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
We do not need to store entire lists of commits, only the
number of incomplete and the first commit for reference.
This reduces the amount of data we need to store in memory
and on disk stores.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Subversion can put mergeinfo on any sub-directory to track cherry-picks.
Since cherry-picks are not represented explicitly in git, git-svn should
just ignore it.
Signed-off-by: Jakob Stoklund Olesen <stoklund@2pi.dk>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
In a Subversion repository where many feature branches are merged into a
trunk, the svn:mergeinfo property can grow very large. This severely
slows down git-svn's make_log_entry() because it is checking all
mergeinfo entries every time the property changes.
In most cases, the additions to svn:mergeinfo since the last commit are
pretty small, and there is nothing to gain by checking merges that were
already checked for the last commit in the branch.
Add a mergeinfo_changes() function which computes the set of interesting
changes to svn:mergeinfo since the last commit. Filter out merged
branches whose ranges haven't changed, and remove a common prefix of
ranges from other merged branches.
This speeds up "git svn fetch" by several orders of magnitude on a large
repository where thousands of feature branches have been merged.
Signed-off-by: Jakob Stoklund Olesen <stoklund@2pi.dk>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Since the very beginning of Git, we gave the LESS environment a
default value "FRSX" when we spawn "less" as the pager. "S" (chop
long lines instead of wrapping) has been removed from this default
set of options, because it is more or less a personal taste thing,
as opposed to others that have good justifications (i.e. "R" is very
much justified because many kinds of output we produce are colored
and "FX" is justified because output we produce is often shorter
than a page).
Existing users who prefer not to see line-wrapped output may want to
set
$ git config core.pager "less -S"
to restore the traditional behaviour. It is expected that people
find output from the most subcommands easier to read with the new
default, except for "blame" which tends to produce really long
lines. To override the new default only for "git blame", you can do
this:
$ git config pager.blame "less -S"
* mm/pager-less-sans-S:
pager: remove 'S' from $LESS by default
By default, Git used to set $LESS to -FRSX if $LESS was not set by
the user. The FRX flags actually make sense for Git (F and X because
sometimes the output Git pipes to less is short, and R because Git
pipes colored output). The S flag (chop long lines), on the other
hand, is not related to Git and is a matter of user preference. Git
should not decide for the user to change LESS's default.
More specifically, the S flag harms users who review untrusted code
within a pager, since a patch looking like:
-old code;
+new good code; [... lots of tabs ...] malicious code;
would appear identical to:
-old code;
+new good code;
Users who prefer the old behavior can still set the $LESS environment
variable to -FRSX explicitly, or set core.pager to 'less -S'.
The documentation in config.txt is made a bit longer to keep both an
example setting the 'S' flag (needed to recover the old behavior)
and an example showing how to unset a flag set by Git.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Some broken subversion server gives timestamps with only one digit
in the hour part, like this:
2014-01-07T5:01:02.048176Z
Loosen the regexp that expected to see two-digit hour, minute and
second parts to accept a single-digit hour (but not minute or
second).
Signed-off-by: Stepan Kasal <kasal@ucw.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
According to profile data, _rev_list and rebuild consume a large
portion of time. Memoize the results of _rev_list and memoize
rebuild internals to avoid subprocess invocation.
When importing 15152 revisions on a LAN, time improved from 10
hours to 3-4 hours.
Signed-off-by: lin zuojian <manjian2006@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Just like we give a reasonable default for "less" via the LESS
environment variable, specify a reasonable default for "lv" via the
"LV" environment variable when spawning the pager.
* jn/pager-lv-default-env:
pager: set LV=-c alongside LESS=FRSX
On systems with lv configured as the preferred pager (i.e.,
DEFAULT_PAGER=lv at build time, or PAGER=lv exported in the
environment) git commands that use color show control codes instead of
color in the pager:
$ git diff
^[[1mdiff --git a/.mailfilter b/.mailfilter^[[m
^[[1mindex aa4f0b2..17e113e 100644^[[m
^[[1m--- a/.mailfilter^[[m
^[[1m+++ b/.mailfilter^[[m
^[[36m@@ -1,11 +1,58 @@^[[m
"less" avoids this problem because git uses the LESS environment
variable to pass the -R option ('output ANSI color escapes in raw
form') by default. Use the LV environment variable to pass 'lv' the
-c option ('allow ANSI escape sequences for text decoration / color')
to fix it for lv, too.
Noticed when the default value for color.ui flipped to 'auto' in
v1.8.4-rc0~36^2~1 (2013-06-10).
Reported-by: Olaf Meeuwissen <olaf.meeuwissen@avasys.jp>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Subversion serf backend in versions 1.8.5 and below has a bug(*) that the
function creating the descriptor of a file change -- add_file() --
doesn't make a copy of its third argument when storing it on the
returned descriptor. As a result, by the time this field is used (in
transactions of file copying or renaming) it may well be released, and
the memory reused.
One of its possible manifestations is the svn assertion triggering on an
invalid path, with a message
svn_fspath__skip_ancestor: Assertion
`svn_fspath__is_canonical(child_fspath)' failed.
This patch works around this bug, by storing the value to be passed as
the third argument to add_file() in a local variable with the same scope
as the file change descriptor, making sure their lifetime is the same.
* [ew: fixed in Subversion r1553376 as noted by Jonathan Nieder]
Cc: Benjamin Pabst <benjamin.pabst85@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Roman Kagan <rkagan@mail.ru>
git-svn used in combination with serf to talk to svn repository
served over HTTPS dumps core on termination.
This is caused by a bug in serf, and the most recent serf release
1.3.1 still exhibits the problem; a fix for the bug exists (see
https://code.google.com/p/serf/source/detail?r=2146).
Until the bug is fixed, work around the issue within the git perl
module Ra.pm by freeing the private copy of the remote access object
on termination, which seems to be sufficient to prevent the error
from happening.
Note: Since subversion-1.8.0 and later do require serf-1.2.1 or
later, this issue typically shows up when upgrading to a recent
version of subversion.
Credits go to Jonathan Lambrechts for proposing a fix to Ra.pm,
Evgeny Kotkov and Ivan Zhakov for fixing the issue in serf and
pointing me to that fix.
Signed-off-by: Uli Heller <uli.heller@daemons-point.com>
Tested-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When the temp_is_locked function was introduced, there was
a desire to make _temp_cache use it. Unfortunately due to the
various tests and logic flow involved changing the _temp_cache
function to use the new temp_is_locked function is problematic
as _temp_cache needs a slightly different test than is provided
by the temp_is_locked function.
This change reverts use of temp_is_locked in the _temp_cache
function and restores the original code that existed there
before the temp_is_locked function was added.
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When attempting to git-svn fetch files from an svn https?: url using
the serf library (the only choice starting with svn 1.8) the following
errors can occur:
Temp file with moniker 'svn_delta' already in use at Git.pm line 1250
Temp file with moniker 'git_blob' already in use at Git.pm line 1250
David Rothenberger <daveroth@acm.org> has determined the cause to
be that ra_serf does not drive the delta editor in a depth-first
manner [...]. Instead, the calls come in this order:
1. open_root
2. open_directory
3. add_file
4. apply_textdelta
5. add_file
6. apply_textdelta
When using the ra_serf access method, git-svn can end up needing
to create several temp files before the first one is closed.
This change causes a new temp file moniker to be generated if the
one that would otherwise have been used is currently locked.
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The temp_is_locked function can be used to determine whether
or not a given name previously passed to temp_acquire is
currently locked.
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The SVN::Fetcher module is now able to filter for inclusion as well
as exclusion (as used by --ignore-path). Also added tests, documentation
changes and git completion script.
If you have an SVN repository with many top level directories and you
only want a git-svn clone of some of them then using --ignore-path is
difficult as it requires a very long regexp. In this case it's much
easier to filter for inclusion.
[ew: remove trailing whitespace]
Signed-off-by: Paul Walmsley <pjwhams@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
lexgrog(1) relies on the NAME section to find a manpage's subject's
name and description for easy access later using "man -k". Add the
section it expects.
Noticed using lintian.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
We call File::Temp's "tempfile" function as a class method, but it was
never designed to be called this way. Older versions seemed to
tolerate it, but as of File::Temp 0.23, it blows up like this:
$ git svn fetch
'tempfile' can't be called as a method at .../Git.pm line 1117.
Fix it by calling it as a regular function, just inside the File::Temp
namespace.
Signed-off-by: H. Merijn Brand <h.m.brand@xs4all.nl>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Closing (not redirecting to /dev/null) the standard error stream is
not a very smart thing to do. Later open may return file
descriptor #2 for unrelated purpose, and error reporting code may
write into them.
* tr/perl-keep-stderr-open:
t9700: do not close STDERR
perl: redirect stderr to /dev/null instead of closing
* maint:
Correct common spelling mistakes in comments and tests
kwset: fix spelling in comments
precompose-utf8: fix spelling of "want" in error message
compat/nedmalloc: fix spelling in comments
compat/regex: fix spelling and grammar in comments
obstack: fix spelling of similar
contrib/subtree: fix spelling of accidentally
git-remote-mediawiki: spelling fixes
doc: various spelling fixes
fast-export: fix argument name in error messages
Documentation: distinguish between ref and offset deltas in pack-format
i18n: make the translation of -u advice in one go
Most of these were found using Lucas De Marchi's codespell tool.
Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint:
Typo fix: replacing it's -> its
t: make PIPE a standard test prerequisite
archive: clarify explanation of --worktree-attributes
t/README: --immediate skips cleanup commands for failed tests
On my system, t9100.1 triggers the following warning:
==352== Syscall param write(buf) points to uninitialised byte(s)
==352== at 0x57119C0: __write_nocancel (in /lib64/libc-2.17.so)
==352== by 0x56AC1D2: _IO_file_write@@GLIBC_2.2.5 (in /lib64/libc-2.17.so)
==352== by 0x56AC0B1: new_do_write (in /lib64/libc-2.17.so)
==352== by 0x56AD3B4: _IO_do_write@@GLIBC_2.2.5 (in /lib64/libc-2.17.so)
==352== by 0x56AD6FE: _IO_file_overflow@@GLIBC_2.2.5 (in /lib64/libc-2.17.so)
==352== by 0x56AE3D8: _IO_default_xsputn (in /lib64/libc-2.17.so)
==352== by 0x56ACAA2: _IO_file_xsputn@@GLIBC_2.2.5 (in /lib64/libc-2.17.so)
==352== by 0x5682133: buffered_vfprintf (in /lib64/libc-2.17.so)
==352== by 0x567CE9D: vfprintf (in /lib64/libc-2.17.so)
==352== by 0x5687096: fprintf (in /lib64/libc-2.17.so)
==352== by 0x4E7AC5: vreportf (usage.c:15)
==352== by 0x4E7B14: die_builtin (usage.c:38)
The actual complaint appears to be a bug in the underlying
implementation. What's interesting here is that it is apparently
_triggered_ by closing stderr, which results in (from strace)
write(2, "fatal: Needed a single revision\n", 32) = -1 EBADF (Bad file descriptor)
write(2, "\0", 1) = -1 EBADF (Bad file descriptor)
Closing stderr is a bad idea anyway: there is a very real chance that
we print fatal error messages to some other file that just happens to
be opened on the now-free FD 2. So let's not do that.
As pointed out by Eric Wong (thanks), the initial close needs to go:
die() would again write nowhere if we close STDERR beforehand.
Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This originates from an msysgit pull request, see:
https://github.com/msysgit/git/pull/58
Signed-off-by: Eric Wieser <wieser.eric@gmail.com>
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
perl/Git.pm::cat_blob slurped everything in core only to write it
out to a file descriptor, which was not a very smart thing to do.
* jc/perl-cat-blob:
Git.pm: fix cat_blob crashes on large files
Hooks the credential system to send-email.
* mn/send-email-works-with-credential:
git-send-email: use git credential to obtain password
Git.pm: add interface for git credential command
Git.pm: allow pipes to be closed prior to calling command_close_bidi_pipe
Git.pm: refactor command_close_bidi_pipe to use _cmd_close
Git.pm: fix example in command_close_bidi_pipe documentation
Git.pm: allow command_close_bidi_pipe to be called as method
perl/Git.pm::cat_blob slurped everything in core only to write it
out to a file descriptor, which was not a very smart thing to do.
* jc/perl-cat-blob:
Git.pm: fix cat_blob crashes on large files
All other instances of "W:"-prefixed warning messages have a space after
the "W:" to help with readability.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Currently this is cosmetic change - the merges are ignored, becuase the methods
(lookup_svn_merge, find_rev_before, find_rev_after) are failing on comparing text with number.
See http://www.open.collab.net/community/subversion/articles/merge-info.html
Extract:
The range r30430:30435 that was added to 1.5.x in this merge has a '*' suffix for 1.5.x\www.
This '*' is the marker for a non-inheritable mergeinfo range.
The '*' means that only the path on which the mergeinfo is explicitly set has had this range merged into it.
Signed-off-by: Jan Pesta <jan.pesta@certicon.cz>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Add a credential() function which is an interface to the git
credential command. The code is heavily based on credential_*
functions in <contrib/mw-to-git/git-remote-mediawiki>.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Read and write each 1024 byte buffer, rather than trying to buffer
the entire content of the file. We are only copying the contents to
a file descriptor and do not use it ourselves.
Previous code would crash on all files > 2 Gib, when the offset
variable became negative (perhaps below the level of perl),
resulting in a crash. On a 32 bit system, or a system with low
memory it might crash before reaching 2 GiB due to memory
exhaustion.
This code may leave a partial file behind in case of failure, where
the old code would leave a completely empty file. Neither version
verifies the correctness of the content. Calling code must take
care of verification and cleanup.
Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* bw/get-tz-offset-perl:
cvsimport: format commit timestamp ourselves without using strftime
perl/Git.pm: fix get_tz_offset to properly handle DST boundary cases
Move Git::SVN::get_tz to Git::get_tz_offset
The command_close_bidi_pipe() function will insist on closing both
input and output pipes returned by command_bidi_pipe(). With this
change it is possible to close one of the pipes in advance and pass
undef as an argument.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The body of the loop in command_close_bidi_pipe sub is identical to
what _cmd_close sub does.
Instead of duplicating, refactor _cmd_close so that it accepts a
list of file handles to be closed, which makes it usable with
command_close_bidi_pipe.
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When passed a local time that was on the boundary of a DST change,
get_tz_offset returned a GMT offset that was incorrect (off by one
hour). This is because the time was converted to GMT and then back to
a time stamp via timelocal() which cannot disambiguate boundary cases
as noted in its documentation.
Modify this algorithm, using an approach suggested in
http://article.gmane.org/gmane.comp.version-control.git/213871
to first convert the timestamp in question to two broken down forms
with localtime() and gmtime(), and then compute what timestamps
these two broken down forms would represent in GMT (i.e. a timezone
that does not have DST issues) by applying timegm() on them. The
difference between the resulting timestamps is the timezone offset.
This avoids the ambigious conversion and allows a correct time to be
returned on every occassion.
Signed-off-by: Ben Walton <bdwalton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This function has utility outside of the SVN module for any routine
that needs the equivalent of GNU strftime's %z formatting option.
Move it to the top-level Git.pm so that non-SVN modules don't need to
import the SVN module to use it.
The rename makes the purpose of the function clearer.
Signed-off-by: Ben Walton <bdwalton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
