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Bug 436543

Summary:	Shallow clone doesn't work
Product:	Community	Reporter:	Dennis Huebner <dennis.huebner>
Component:	Git	Assignee:	Eclipse Webmaster <webmaster>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	P3	CC:	thanh.ha
Version:	unspecified
Target Milestone:	---
Hardware:	PC
OS:	Mac OS X
Whiteboard:

Description Dennis Huebner

2014-06-04 04:20:09 EDT

To reduce the space used on our HIPP and speed up the cloning of our repository (~800Mb) I've tried to use the shallow clone. This fails with the following exception: 

MacHuebner:test-shallow dhuebner$ git clone ssh://dhubner@git.eclipse.org/gitroot/tmf/org.eclipse.xtext.git --depth 1
Klone nach 'org.eclipse.xtext'...
Password: 
fatal: Unable to create temporary file '/home/data/git/tmf/org.eclipse.xtext.git/shallow_uQoa4E': Permission denied
fatal: The remote end hung up unexpectedly

Using git protocol also fails but with an other exception:
MacHuebner:test-shallow dhuebner$ git clone http://git.eclipse.org/gitroot/tmf/org.eclipse.xtext.git --depth 1
Klone nach 'org.eclipse.xtext'...
fatal: The remote end hung up unexpectedly
fatal: protocol error: bad pack header

Comment 1 Thanh Ha

2014-06-04 09:40:35 EDT

Looks like to shallow clone a repo you need write access to the repo. When we enable Gerrit for your repos we transfer ownership to the gerrit user.


So the way to get around this is to use the Gerrit URLs if you want to shallow clone.

I tried with this command and worked for me:

    git clone ssh://git.eclipse.org:29418/tmf/org.eclipse.xtext.git --depth 1

Comment 2 Thanh Ha

2014-06-04 09:45:15 EDT

(In reply to Dennis Huebner from comment #0)
> To reduce the space used on our HIPP and speed up the cloning of our
> repository (~800Mb) I've tried to use the shallow clone. This fails with the
> following exception: 
> 

I would recommend you shallow clone more than 1 depth. Travis CI uses 50 as it's default depth which I think should work fine for most cases.

There are edge cases which could cause build issues when you have a really low depth. Such as if you are using polling based build triggers and multiple changes are happening rapidly, your build may miss a few commits.

Comment 3 Dennis Huebner

2014-06-05 05:25:49 EDT

https://git.eclipse.org/r/tmf/org.eclipse.xtext works for me, thanks.