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Bug 326693

Summary:	Problem with CloneOperation and refs/tags/
Product:	[Technology] EGit	Reporter:	Igor Fedorenko <igor>
Component:	Core	Assignee:	Stefan Lay <stefan.lay>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	P3	CC:	matthias.sohn, stefan.lay
Version:	0.9.0
Target Milestone:	0.10.0
Hardware:	PC
OS:	Linux
Whiteboard:

Description Igor Fedorenko

2010-09-30 13:16:26 EDT

Even though CloneOperation manages to clone remote repo and checkout working tree when branch=refs/tags/sometag, the cloned repo is left is somewhat inconsistent state and running "git branch -a" fails with "fatal: HEAD not found below refs/heads!" message. Doing "git checkout sometag" puts the local repository back into good state as far as I can tell.

Comment 1 Stefan Lay

2010-12-01 09:04:36 EST

I could reproduce that. Bit I already get an exception in the clone wizard:

java.lang.StringIndexOutOfBoundsException: String index out of range: -7
at java.lang.String.substring(String.java:1937)
at java.lang.String.substring(String.java:1904)
at org.eclipse.egit.ui.internal.clone.SourceBranchPage$1.getText(SourceBranchPage.java:128)
at org.eclipse.jface.viewers.WrappedViewerLabelProvider.getText(WrappedViewerLabelProvider.java:108)
at org.eclipse.jface.viewers.WrappedViewerLabelProvider.update(WrappedViewerLabelProvider.java:164)
at org.eclipse.jface.viewers.ViewerColumn.refresh(ViewerColumn.java:145)
When I continue I have the same behavior as secribed by Igor. My cloned repo has no HEAD and no branches.

Comment 2 Igor Fedorenko

2010-12-01 11:03:29 EST

To clarify, I was using CloneOperation directly, without using egit GUI.

Comment 3 Stefan Lay

2010-12-01 12:13:10 EST

I can reproduce the error. The EGit operatoin writes ref: refs/tags/TagForDemo into the HEAD file. This seems not to work. "git checkout sometag" replaces this by the commit id and everything works.

Comment 4 Stefan Lay

2010-12-02 09:53:53 EST

In the proposal http://egit.eclipse.org/r/#change,2003 we changed the API of CloneOperation. 

The former String parameter "branch" which contained the ref name of the branch to check out is replaced by a parameter of type Ref. This Ref must exist in the cloned repo. An example code how to get such a ref is e.g. in org.eclipse.egit.ui.view.repositories.GitRepositoriesViewBranchHandlingTest.beforeClass(). This should work for tags now.

Comment 5 Matthias Sohn

2010-12-14 08:28:31 EST

merged as 35b7b6520355106dd62f2f241e71843a56b62503
will be shipped with 0.10