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Author SHA1 Message Date
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