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2015-02-26Merge branch 'svn-maint-fixes' into svn-fixesLibravatar Junio C Hamano1-0/+8
* svn-maint-fixes: Git::SVN::*: avoid premature FileHandle closure git-svn: fix localtime=true on non-glibc environments
2015-02-26Git::SVN::*: avoid premature FileHandle closureLibravatar Kyle J. McKay1-0/+8
Since b19138b (git-svn: Make it incrementally faster by minimizing temp files, v1.6.0), git-svn has been using the Git.pm temp_acquire and temp_release mechanism to avoid unnecessary temp file churn and provide a speed boost. However, that change introduced a call to temp_acquire inside the Git::SVN::Fetcher::close_file function for an 'svn_hash' temp file. Because an SVN::Pool is active at the time this function is called, if the Git::temp_acquire function ends up actually creating a new FileHandle for the temp file (which it will the first time it's called with the name 'svn_hash') that FileHandle will end up in the SVN::Pool and should that pool have SVN::Pool::clear called on it that FileHandle will be closed out from under Git::temp_acquire. Since the only call site to Git::temp_acquire with the name 'svn_hash' is inside the close_file function, if an 'svn_hash' temp file is ever created its FileHandle is guaranteed to be created in the active SVN::Pool. This has not been a problem in the past because the SVN::Pool was not being cleared. However, since dfa72fdb (git-svn: reload RA every log-window-size, v2.2.0) the pool has been getting cleared periodically at which point the FileHandle for the 'svn_hash' temp file gets closed. Any subsequent calls to Git::temp_acquire for 'svn_hash', however, succeed without creating/opening a new temporary file since it still has the now invalid FileHandle in its cache. Callers that then attempt to use that FileHandle fail with an error. We avoid this problem by making sure the 'svn_hash' temp file is created in the same place the 'svn_delta_...' and 'git_blob_...' temp files are (and then temp_release'd) so that it can be safely used inside the close_file function without having its FileHandle end up in an SVN::Pool that gets cleared. Additionally the Git.pm cat_blob function creates a bidirectional pipe FileHandle using the IPC::Open2::open2 function. If that handle is created too late, it also gets caught up in the SVN::Pool and incorrectly closed by the SVN::Pool::clear call. But this only seems to happen with more recent versions of Perl and svn. To avoid this problem we add an explicit call to _open_cat_blob_if_needed before the first call to SVN::Pool->new_default to make sure the open2 handle does not end up in the SVN::Pool. Signed-off-by: Kyle J. McKay <mackyle@gmail.com> Signed-off-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-26git-svn: lazy load some modulesLibravatar Eric Wong1-2/+1
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>
2013-07-07git-svn: allow git-svn fetching to work using serfLibravatar Kyle J. McKay1-2/+4
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>
2013-05-09git-svn: added an --include-path flagLibravatar Paul Walmsley1-2/+14
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>
2013-05-09Git::SVN::*: add missing "NAME" section to perldocLibravatar Jonathan Nieder1-0/+2
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>
2012-08-02use Git::SVN->path accessor globallyLibravatar Michael G. Schwern1-1/+1
No functional change. [ew: commit title] Signed-off-by: Eric Wong <normalperson@yhbt.net>
2012-07-27Move Git::IndexInfo into its own file.Libravatar Michael G. Schwern1-0/+1
Straight cut & paste. Didn't require any fixing. Signed-off-by: Eric Wong <normalperson@yhbt.net>
2012-06-10git-svn: make Git::SVN::Editor a separate fileLibravatar Jonathan Nieder1-1/+2
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>
2012-05-29git-svn: make Git::SVN::Fetcher a separate fileLibravatar Jonathan Nieder1-0/+602
This patch removes a chunk of code (the Git::SVN::Fetcher consumer of libsvn's tree delta protocol) from git-svn.perl and documents its interface so the hurried reader does not have to read that code right away. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Eric Wong <normalperson@yhbt.net>