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git/t/t9120-git-svn-clone-with-percent-escapes.sh
Johan Herland fe191fcaa5 Git 2.0: git svn: Set default --prefix='origin/' if --prefix is not given
git-svn by default puts its Subversion-tracking refs directly in
refs/remotes/*. This runs counter to Git's convention of using
refs/remotes/$remote/* for storing remote-tracking branches.

Furthermore, combining git-svn with regular git remotes run the risk of
clobbering refs under refs/remotes (e.g. if you have a git remote
called "tags" with a "v1" branch, it will overlap with the git-svn's
tracking branch for the "v1" tag from Subversion.

Even though the git-svn refs stored in refs/remotes/* are not "proper"
remote-tracking branches (since they are not covered by a proper git
remote's refspec), they clearly represent a similar concept, and would
benefit from following the same convention.

For example, if git-svn tracks Subversion branch "foo" at
refs/remotes/foo, and you create a local branch refs/heads/foo to add
some commits to be pushed back to Subversion (using "git svn dcommit),
then it is clearly unhelpful of Git to throw

  warning: refname 'foo' is ambiguous.

every time you checkout, rebase, or otherwise interact with the branch.

The existing workaround for this is to supply the --prefix=quux/ to
git svn init/clone, so that git-svn's tracking branches end up in
refs/remotes/quux/* instead of refs/remotes/*. However, encouraging
users to specify --prefix to work around a design flaw in git-svn is
suboptimal, and not a long term solution to the problem. Instead,
git-svn should default to use a non-empty prefix that saves
unsuspecting users from the inconveniences described above.

This patch will only affect newly created git-svn setups, as the
--prefix option only applies to git svn init (and git svn clone).
Existing git-svn setups will continue with their existing (lack of)
prefix. Also, if anyone somehow prefers git-svn's old layout, they
can recreate that by explicitly passing an empty prefix (--prefix "")
on the git svn init/clone command line.

The patch changes the default value for --prefix from "" to "origin/",
updates the git-svn manual page, and fixes the fallout in the git-svn
testcases.

(Note that this patch might be easier to review using the --word-diff
and --word-diff-regex=. diff options.)

[ew: squashed description of <= 1.9 behavior into manpage]

Suggested-by: Thomas Ferris Nicolaisen <tfnico@gmail.com>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Eric Wong <normalperson@yhbt.net>
2014-04-19 11:30:13 +00:00

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#!/bin/sh
#
# Copyright (c) 2008 Kevin Ballard
#
test_description='git svn clone with percent escapes'
. ./lib-git-svn.sh
test_expect_success 'setup svnrepo' '
mkdir project project/trunk project/branches project/tags &&
echo foo > project/trunk/foo &&
svn_cmd import -m "$test_description" project "$svnrepo/pr ject" &&
svn_cmd cp -m "branch" "$svnrepo/pr ject/trunk" \
"$svnrepo/pr ject/branches/b" &&
svn_cmd cp -m "tag" "$svnrepo/pr ject/trunk" \
"$svnrepo/pr ject/tags/v1" &&
rm -rf project &&
start_httpd
'
test_expect_success 'test clone with percent escapes' '
git svn clone "$svnrepo/pr%20ject" clone &&
(
cd clone &&
git rev-parse refs/${remotes_git_svn}
)
'
# SVN works either way, so should we...
test_expect_success 'svn checkout with percent escapes' '
svn_cmd checkout "$svnrepo/pr%20ject" svn.percent &&
svn_cmd checkout "$svnrepo/pr%20ject/trunk" svn.percent.trunk
'
test_expect_success 'svn checkout with space' '
svn_cmd checkout "$svnrepo/pr ject" svn.space &&
svn_cmd checkout "$svnrepo/pr ject/trunk" svn.space.trunk
'
test_expect_success 'test clone trunk with percent escapes and minimize-url' '
git svn clone --minimize-url "$svnrepo/pr%20ject/trunk" minimize &&
(
cd minimize &&
git rev-parse refs/${remotes_git_svn}
)
'
test_expect_success 'test clone trunk with percent escapes' '
git svn clone "$svnrepo/pr%20ject/trunk" trunk &&
(
cd trunk &&
git rev-parse refs/${remotes_git_svn}
)
'
test_expect_success 'test clone --stdlayout with percent escapes' '
git svn clone --stdlayout "$svnrepo/pr%20ject" percent &&
(
cd percent &&
git rev-parse refs/remotes/origin/trunk^0 &&
git rev-parse refs/remotes/origin/b^0 &&
git rev-parse refs/remotes/origin/tags/v1^0
)
'
test_expect_success 'test clone -s with unescaped space' '
git svn clone -s "$svnrepo/pr ject" --prefix origin/ space &&
(
cd space &&
git rev-parse refs/remotes/origin/trunk^0 &&
git rev-parse refs/remotes/origin/b^0 &&
git rev-parse refs/remotes/origin/tags/v1^0
)
'
stop_httpd
test_done