Can I switch a git-svn clone from a file => http url?

7 messages, 4 authors, 2016-06-15 · open the first message on its own page

Can I switch a git-svn clone from a file => http url?

From: Stephen Bannasch <hidden>
Date: 2016-06-15 22:44:27

I've just created a git-svn clone from a svn repo accessed locally 
with a file:/// path.

Unfortunately the local svn repo is just a copy of the main svn repo 
normally accessed with http or https (served through Apache). I was 
having problems cloning the main svn repository (more details below) 
so I archived the remote svn repository and copied it to my local 
hard drive.

Is there an operation I can now do to switch the base url from:

   file:///Path/to/svn/repository/projects

to

   https://svn.concord.org/svn/projects

Here's more details about the problem that got me to this spot:

The svn repo is about 1GB.

I tried several times on a 1000baseT network to git-svn clone the 
repo. There are about 13000 revisions but the clone process would 
randomly stop without an error somewhere between revision 400 and 
1200.

This was the command I was using:

git svn clone https://svn.concord.org/svn/projects

I'm running git version 1.5.4.4 (installed via ports) on MacOS 10.5.2.

Re: Can I switch a git-svn clone from a file => http url?

From: Johannes Schindelin <hidden>
Date: 2016-06-15 22:44:27

Hi,

On Wed, 2 Apr 2008, Stephen Bannasch wrote:
Is there an operation I can now do to switch the base url from:

  file:///Path/to/svn/repository/projects

to

  https://svn.concord.org/svn/projects
Have you tried to edit the .git/config?  The key to look for is 
svn-remote.svn.url.

Hth,
Dscho

Re: Can I switch a git-svn clone from a file => http url?

From: Björn Steinbrink <hidden>
Date: 2016-06-15 22:44:27

On 2008.04.02 10:38:34 -0400, Stephen Bannasch wrote:
I've just created a git-svn clone from a svn repo accessed locally with a 
file:/// path.

Unfortunately the local svn repo is just a copy of the main svn repo  
normally accessed with http or https (served through Apache). I was  
having problems cloning the main svn repository (more details below) so I 
archived the remote svn repository and copied it to my local hard drive.
I guess you should have used the --rewrite-root option when you did the
clone. Then the metadata in the log entries would already point to the
right URL and you could just adjust the URL in .git/config and drop the
rewriteRoot entry there.
Is there an operation I can now do to switch the base url from:

  file:///Path/to/svn/repository/projects

to

  https://svn.concord.org/svn/projects
Basically, this should work:

Change the URL to the repo in your .git/config.
Use filter-branch to change all git-svn-id lines in the log entries.
Delete the .rev_map.* files in .git/svn/*
Run git svn fetch (rebuilds the .rev_map.* files).

The filter-branch call should use the --msg-filter option to change the
log entries and should apply to all the svn branches/tags/trunk (or just
use " -- --all", if there's nothing that may not be filtered).

HTH
Björn

Re: Can I switch a git-svn clone from a file => http url?

From: Stephen Bannasch <hidden>
Date: 2016-06-15 22:44:27

Thanks Björn,

At 5:17 PM +0200 4/2/08, Björn Steinbrink wrote:
On 2008.04.02 10:38:34 -0400, Stephen Bannasch wrote:
quoted
Is there an operation I can now do to switch the base url from:

  file:///Path/to/svn/repository/projects

to

  https://svn.concord.org/svn/projects
Basically, this should work:

Change the URL to the repo in your .git/config.
Done
Use filter-branch to change all git-svn-id lines in the log entries.
I've just started using git so please forgive the beginner questions.

What should I change the log entries to?

Here's what the log entries look like now:

$ git-filter-branch --msg-filter 'echo $GIT_COMMIT'
^MRewrite 89817efa5b290d375786a5af9a0dcc338df8a68c (1/13099)^MRewrite b090d1d40cba2c66a494d52e370317487d103484 (2/13099)^M

Do you mean each one should just be re-written to a new SHA1 keys? If so how should I generate new SHA1 keys?
The filter-branch call should use the --msg-filter option to change the
log entries and should apply to all the svn branches/tags/trunk (or just
use " -- --all", if there's nothing that may not be filtered).

HTH
Björn
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Re: Can I switch a git-svn clone from a file => http url?

From: Teemu Likonen <hidden>
Date: 2016-06-15 22:44:27

Stephen Bannasch kirjoitti:
I've just created a git-svn clone from a svn repo accessed locally
with a file:/// path.

Unfortunately the local svn repo is just a copy of the main svn repo
normally accessed with http or https (served through Apache). I was
having problems cloning the main svn repository (more details below)
so I archived the remote svn repository and copied it to my local
hard drive.
I know two options:

1. Keep your current Git repo but set the url and rewriteroot options 
in .git/config:

[svn-remote "svn"]
	url = http://...
	rewriteroot = file:///...

Your commit messages will still have git-svn-id pointing at file:///... 
url but it should work fine.


2. Convert your repo again:

$ mkdir repo ; cd repo
$ git svn init --rewrite-root=http://... file:///...
$ git svn fetch

This way you'll create new Git repo from file:///... url but commit 
messages will have git-svn-id's url pointing at http://... . After that 
set the correct remote url to .git/config:

[svn-remote "svn"]
	url = http://...

Re: Can I switch a git-svn clone from a file => http url?

From: Stephen Bannasch <hidden>
Date: 2016-06-15 22:44:27

At 9:05 AM +0300 4/3/08, Teemu Likonen wrote:
Stephen Bannasch kirjoitti:
quoted
I've just created a git-svn clone from a svn repo accessed locally
with a file:/// path.

Unfortunately the local svn repo is just a copy of the main svn repo
normally accessed with http or https (served through Apache). I was
having problems cloning the main svn repository (more details below)
so I archived the remote svn repository and copied it to my local
hard drive.
2. Convert your repo again:

$ mkdir repo ; cd repo
$ git svn init --rewrite-root=http://... file:///...
$ git svn fetch

This way you'll create new Git repo from file:///... url but commit
messages will have git-svn-id's url pointing at http://... . After that
set the correct remote url to .git/config:

[svn-remote "svn"]
url = http://...
Thanks Teemu,

That took a while but worked.

I also removed the rewriteRoot line from config after editing the url.

I think I might have achieved the same effect more quickly with Björn's suggestion to use:

  git-filter-branch --msg-filter

to:
quoted
Use filter-branch to change all git-svn-id lines in the log entries.
But it wasn't clear to me how to change the git-svn-id lines.

Re: Can I switch a git-svn clone from a file => http url?

From: Björn Steinbrink <hidden>
Date: 2016-06-15 22:44:27

[missed the message because you dropped me from Cc:...]

On 2008.04.02 22:06:48 -0400, Stephen Bannasch wrote:
Thanks Björn,

At 5:17 PM +0200 4/2/08, Björn Steinbrink wrote:
quoted
On 2008.04.02 10:38:34 -0400, Stephen Bannasch wrote:
quoted
Is there an operation I can now do to switch the base url from:

  file:///Path/to/svn/repository/projects

to

  https://svn.concord.org/svn/projects
Basically, this should work:

Change the URL to the repo in your .git/config.
Done
quoted
Use filter-branch to change all git-svn-id lines in the log entries.
I've just started using git so please forgive the beginner questions.

What should I change the log entries to?

Here's what the log entries look like now:

$ git-filter-branch --msg-filter 'echo $GIT_COMMIT'
^MRewrite 89817efa5b290d375786a5af9a0dcc338df8a68c (1/13099)^MRewrite b090d1d40cba2c66a494d52e370317487d103484 (2/13099)^M
Ouch, that replaced your commit messages with the sha1 hashes... Should
have been something like:
git filter-branch --msg-filter 'sed "s,file:///....,http:///,"' -- --all

Björn
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