Question

我正在尝试将git-svn用于以下项目：

https://svn.apache.org/repos/asf/commons/sandbox/gsoc/2010/scxml-js/trunk/

我使用标准git svn clone https://svn.apache.org/repos/asf/commons/sandbox/gsoc/2010/scxml-js/trunk/ -T trunk -b branches -t tags调用检出了它。

在使用git checkout -b而不是git svn branch进行分支后，我开始在使用git-svn dcommit和git-svn时遇到问题，然后将该本地分支合并回master，并尝试dcommit。现在，奇怪的是，即使在做了干净的结账之后，当我试图拒绝时，我仍然有错误。

以下相当长的跟踪代表了我当前使用git-svn的工作流程：

jacob@jacob-laptop:~/workspace/gsoc2010/scxml-js$ git svn dcommit
Committing to https://jbeard@svn.apache.org/repos/asf/commons/sandbox/gsoc/2010/scxml-js/trunk ...
        M       build-common.xml
        M       src/xslt/backends/js/StateTableStatechartGenerator.xsl
        M       src/xslt/backends/js/SwitchyardStatechartGenerator.xsl
        M       src/xslt/ir-compiler/appendTransitionInformation.xsl
        M       src/xslt/ir-compiler/copyEnumeratedEventTransitions.xsl
        M       src/xslt/ir-compiler/flattenTransitions.xsl
        M       src/xslt/ir-compiler/nameTransitions.xsl
        M       src/xslt/ir-compiler/numberStatesAndTransitions.xsl
        M       src/xslt/ir-compiler/splitTransitionTargets.xsl
        M       src/xslt/util/language-frontend-module-generators/sh-from-topo-sort-list-generator.xsl
        M       src/xslt/util/topo-sort.xsl
Committed r1037491
W: 502073c202cb1fbe089f0e8b7100304f0aa74729 and refs/remotes/trunk differ, using rebase:
:100644 100644 7930fd690be01a5716490704b5556e2b5cab5ba6 51047f2c8cf1daaa94ae44433a9aa2acc222ae43 M      build-common.xml
:040000 040000 59251941b33bda1376881b33bb2263ea87b1b947 2f5e2586e26bc7d05def065cfcf05327982b81d7 M      src
Current branch master is up to date.
# of revisions changed
before:
 39c6f7e2d7b82cc782b8770d1ddb0ecb4f86e780
c5f360feb3a6bdaab2fb2f48d05e8691824e3231

after:
 502073c202cb1fbe089f0e8b7100304f0aa74729
39c6f7e2d7b82cc782b8770d1ddb0ecb4f86e780
c5f360feb3a6bdaab2fb2f48d05e8691824e3231
 If you are attempting to commit  merges, try running:
         git rebase --interactive --preserve-merges  refs/remotes/trunk
Before dcommitting
jacob@jacob-laptop:~/workspace/gsoc2010/scxml-js$ git svn rebase
        M       build-common.xml
        M       src/xslt/ir-compiler/nameTransitions.xsl
        M       src/xslt/ir-compiler/copyEnumeratedEventTransitions.xsl
        M       src/xslt/ir-compiler/appendTransitionInformation.xsl
        M       src/xslt/ir-compiler/flattenTransitions.xsl
        M       src/xslt/ir-compiler/numberStatesAndTransitions.xsl
        M       src/xslt/ir-compiler/splitTransitionTargets.xsl
        M       src/xslt/backends/js/SwitchyardStatechartGenerator.xsl
        M       src/xslt/backends/js/StateTableStatechartGenerator.xsl
        M       src/xslt/util/language-frontend-module-generators/sh-from-topo-sort-list-generator.xsl
        M       src/xslt/util/topo-sort.xsl
r1037491 = e8d820cfdca882a57fbfa003b9673313be6c9621 (refs/remotes/trunk)
First, rewinding head to replay your work on top of it...
Applying: Changed some paths around so python fronend works.
Applying: Removed test_with_xsltproc.sh. This file no longer needed, as we now generate a bash backend module.
jacob@jacob-laptop:~/workspace/gsoc2010/scxml-js$ git svn dcommit
Committing to https://jbeard@svn.apache.org/repos/asf/commons/sandbox/gsoc/2010/scxml-js/trunk ...
        M       src/python/scxml/cgf/backends/js
        M       src/python/scxml/cgf/xslt
Committed r1037493
W: 8563b885bfca77ccb33a87f56f78e6323af022a9 and refs/remotes/trunk differ, using rebase:
:040000 040000 c33b3d66ecc6735af3241d7f9cee383d2736f614 59251941b33bda1376881b33bb2263ea87b1b947 M      src
Current branch master is up to date.
# of revisions changed
before:
 574e2e495fa12cf3d81004638a06e3315d0abba5

after:
 8563b885bfca77ccb33a87f56f78e6323af022a9
574e2e495fa12cf3d81004638a06e3315d0abba5
 If you are attempting to commit  merges, try running:
         git rebase --interactive --preserve-merges  refs/remotes/trunk
Before dcommitting

我基本上需要为自上次dcommit以来的每次提交都执行git svn dcommit后跟git svn rebase。这通常很干净，但有时会失败，需要更多的手工工作。

什么可能导致dcommit出现此问题，即使使用干净的结帐也无法解决？

Answer 1

我刚刚碰到了这个并最终弄清楚发生了什么：当您通过HTTP和write-through proxying访问SVN存储库时，推荐的post-commit挂钩在后台运行svnsync。一旦SVN服务器完成，通过HTTP提交就会完成，但在您阅读的HTTP代理之前已经更新到新版本。 git-svn快速提交，然后进行提取，并查看没有新修订的过时HTTP代理。它假设它得到了新版本，并将远程提示与它尝试提交的内容区分开来并发现冲突。

如果您控制SVN代理配置，您可以使svnsync同步（这对我来说很长一段时间，直到有人对配置更改感到惊讶）。否则我认为git-svn需要一个重试机制：

diff --git a/git-svn.perl b/git-svn.perl
index 09c4ca5..af9aea1 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -57,6 +57,7 @@ use File::Spec;
 use File::Find;
 use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
 use IPC::Open3;
+use Time::HiRes qw/usleep/;
 use Git;

 BEGIN {
@@ -574,7 +575,17 @@ sub cmd_dcommit {
                                $gs->{inject_parents_dcommit}->{$cmt_rev} =
                                                               $parents->{$d};
                        }
-                       $_fetch_all ? $gs->fetch_all : $gs->fetch;
+                       my $retry;
+                       fetch: for ($retry = 0; $retry < 30; ++$retry) {
+                           $_fetch_all ? $gs->fetch_all : $gs->fetch;
+                           last fetch if ($gs->rev_map_max >= $cmt_rev);
+                           # Asynchronous commit push not complete
+                           usleep(20000 * ($retry + 1));
+                       }
+                       if ($retry > 0 && $gs->rev_map_max < $cmt_rev) {
+                           fatal "New revision $cmt_rev did not appear",
+                                 "in repository after $retry retries.";
+                       }
                        $last_rev = $cmt_rev;
                        next if $_no_rebase;

$

如果今晚这仍然是一个好主意，我会提交补丁。

更新：在使用这个时，我最终得到了：

Author: syncuser <syncuser@d3ff0b4f-3c2c-0410-a809-ba59474314df>

我自己的一个提交。因此，可能仍存在竞争条件，其中脚本看到部分同步。这很烦人但不致命。

即使在清理结账后，git-svn也无法拒绝

1 个答案: