Commit graph

12 commits

Author SHA1 Message Date
Eric Wong
b26098fc2f git-svn: reduce scope of input record separator change
Reducing the scope of where we change the record separator ($/)
avoids bugs in calls which rely on the input record separator
further down, such as the 'chomp' usage in command_oneline.

This is necessary for a future change to git-svn, but exists in
Git.pm since it seems useful for gitweb and our other Perl
scripts, too.

Signed-off-by: Eric Wong <e@80x24.org>
2016-10-14 01:36:05 +00:00
Kazutoshi Satoda
1b42f45255 git-svn: apply "svn.pathnameencoding" before URL encoding
The conversion from "svn.pathnameencoding" to UTF-8 should be applied
first, and then URL encoding should be applied on the resulting UTF-8
path. The reversed order of these transforms (used before this fix)
makes non-UTF-8 URL which causes error from Subversion such as
"Filesystem has no item: '...' path not found" when sending a rename (or
a copy) from non-ASCII path.

[ew: t9115 test case added (requires SVN_HTTPD_PORT set to test),
 squash LC_ALL=$a_utf8_locale export from Kazutoshi for Cygwin]

Signed-off-by: Kazutoshi SATODA <k_satoda@f2.dion.ne.jp>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2016-02-22 02:29:36 +00:00
Kazutoshi Satoda
40f47448a9 git-svn: enable "svn.pathnameencoding" on dcommit
Without the initialization of $self->{pathnameencoding}, conversion in
repo_path() is always skipped as $self->{pathnameencoding} is undefined
even if "svn.pathnameencoding" is configured.

The lack of conversion results in mysterious failure of dcommit (e.g.
"Malformed XML") which happen only when a commit involves a change on
non-ASCII path.

[ew: add test case to t9115,
 squash LC_ALL=$a_utf8_locale export from Kazutoshi for Cygwin]

Signed-off-by: Kazutoshi SATODA <k_satoda@f2.dion.ne.jp>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2016-02-22 02:28:34 +00:00
Eric Wong
47092c1067 git-svn: lazy load some modules
We can delay loading some modules until we need them for uncommon
code paths.  For example, persistent memoization is not often
needed, so we can avoid loading the modules for it until we
encounter svn::mergeinfo during fetch.

This gives a tiny reduction in syscalls (from 15641 to 15305) when
running "git svn info" and counting via "strace -fc".  Further,
more invasive work will be needed to noticeably improve performance.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
2015-02-26 20:19:21 +00:00
Alfred Perlstein
83c9433e67 git-svn: support for git-svn propset
This change allows git-svn to support setting subversion properties.

It is useful for manually setting properties when committing to a
subversion repo that *requires* properties to be set without requiring
moving your changeset to separate subversion checkout in order to
set props.

This change is initially from David Fraser, appearing at:

  http://mid.gmane.org/1927112650.1281253084529659.JavaMail.root@klofta.sjsoft.com>

They are now forward-ported to most recent git along with fixes to
deal with files in subdirectories.

Style and functional changes from Eric Wong have been taken
in their entirety from:

  http://mid.gmane.org/20141201094911.GA13931@dcvr.yhbt.net

There is a nit to point out: the code does not support
adding props unless there are also content changes to the files as
well.  This is demonstrated in the testcase.

[ew - simplify Git.pm usage for check-attr
    - improve shell portability for tests
    - minor phrasing changes in commit message]

Signed-off-by: David Fraser <davidf@sjsoft.com>
Signed-off-by: Alfred Perlstein <alfred@freebsd.org>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2014-12-09 22:03:15 +00:00
Roman Kagan
2394e94e83 git-svn: workaround for a bug in svn serf backend
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>
2013-12-27 20:22:19 +00:00
Jonathan Nieder
d301f18160 Git::SVN::*: add missing "NAME" section to perldoc
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>
2013-05-09 01:07:58 +00:00
Eric Wong
1b67bef256 git-svn: cleanup sprintf usage for uppercasing hex
We do not need to call uc() separately for sprintf("%x")
as sprintf("%X") is available.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
2013-01-24 10:21:23 +00:00
Peter Wu
cc3046271d git-svn: do not escape certain characters in paths
Subversion 1.7 and newer implement HTTPv2, an extension that should make HTTP
more efficient. Servers with support for this protocol will make the subversion
client library take an alternative code path that checks (with assertions)
whether the URL is "canonical" or not.

This patch fixes an issue I encountered while trying to `git svn dcommit` a
rename action for a file containing a single quote character ("User's Manual"
to "UserMan.tex"). It does not happen for older subversion 1.6 servers nor
non-HTTP(S) protocols such as the native svn protocol, only on an Apache server
shipping SVN 1.7. Trying to `git svn dcommit` under the aforementioned
conditions yields the following error which aborts the commit process:

    Committing to http://example.com/svn ...
    perl: subversion/libsvn_subr/dirent_uri.c:1520: uri_skip_ancestor:
Assertion `svn_uri_is_canonical(child_uri, ((void *)0))' failed.
    error: git-svn died of signal 6

An analysis of the subversion source for the cause:

- The assertion originates from uri_skip_ancestor which calls
  svn_uri_is_canonical, which fails when the URL contains percent-encoded values
  that do not necessarily have to be encoded (not "canonical" enough). This is
  done by a table lookup in libsvn_subr/path.c. Putting some debugging prints
  revealed that the character ' is indeed encoded to %27 which is not
  considered canonical.
- url_skip_ancestor is called by svn_ra_neon__get_baseline_info with the root
  repository URL and path as parameters;
- which is called by copy_resource (libsvn_ra_neon/commit.c) for a copy action
  (or in my case, renaming which is actually copy + delete old);
- which is called by commit_add_dir;
- which is assigned as a structure method "add_file" in
  svn_ra_neon__get_commit_editor.

In the whole path, the path argument is not modified.

Through some more uninteresting wrapper functions, the Perl bindings gives you
access to the add_file method which will pass the path argument without
modifications to svn.

git-svn calls the "R"(ename) subroutine in Git::SVN::Editor which contains:
326         my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
327                                 $self->url_path($m->{file_a}), $self->{r});
"repo_path" basically returns the path as-is, unless the "svn.pathnameencoding"
configuration property is set. "url_path" tries to escape some special
characters, but does not take all special characters into account, thereby
causing the path to contain some escaped characters which do not have to be
escaped.

The list of characters not to be escaped are taken from the
subversion/libsvn_subr/path.c file to fully account for all characters. Tested
with a filename containing all characters in the range 0x20 to 0x78 (inclusive).

Signed-off-by: Peter Wu <lekensteyn@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2013-01-19 11:24:12 +00:00
Jonathan Nieder
47263f5875 Git::SVN::Editor::T: pass $deletions to ->A and ->D
This shouldn't make a difference because the $deletions hash is
only used when adding a directory (see 379862ec, 2012-02-20) but
it's nice to be consistent to make reading smoother anyway.  No
functional change intended.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2013-01-17 23:28:12 +00:00
Jonathan Nieder
b8c78e2a9d git svn: work around SVN 1.7 mishandling of svn:special changes
Subversion represents symlinks as ordinary files with content starting
with "link " and the svn:special property set to "*".  Thus a file can
switch between being a symlink and a non-symlink simply by toggling
its svn:special property, and new checkouts will automatically write a
file of the appropriate type.  Likewise, in subversion 1.6 and older,
running "svn update" would notice changes in filetype and update the
working copy appropriately.

Starting in subversion 1.7 (issue 4091), changes to the svn:special
property trip an assertion instead:

	$ svn up svn-tree
	Updating 'svn-tree':
	svn: E235000: In file 'subversion/libsvn_wc/update_editor.c' \
	line 1583: assertion failed (action == svn_wc_conflict_action_edit \
	|| action == svn_wc_conflict_action_delete || action == \
	svn_wc_conflict_action_replace)

Revisions prepared with ordinary svn commands ("svn add" and not "svn
propset") don't trip this because they represent these filetype
changes using a replace operation, which is approximately equivalent
to removal followed by adding a new file and works fine.  Follow suit.

Noticed using t9100.  After this change, git-svn's file-to-symlink
changes are sent in a format that modern "svn update" can handle and
tests t9100.11-13 pass again.

[ew: s,git-svn\.perl,perl/Git/SVN/Editor.pm,g]

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2012-10-10 20:02:33 +00:00
Jonathan Nieder
8f9facfe94 git-svn: make Git::SVN::Editor a separate file
This makes the git-svn script shorter and less scary for beginners to
read through for the first time.  Take the opportunity to explain the
purpose and basic interface of the Git::SVN::Editor class while at it.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2012-06-10 08:45:56 +00:00