Re: [BUG] Out of memory on git log --simplify-by-decoration --first-parent

Vincent van Ravesteijn [off-list ref] writes:

git dies after calling the following command on the git repo:

$ git log f623ca1c...b9cfa4e9 --simplify-by-decoration --first-parent

I wouldn't be surprised anything random happens when --first-parent
is used together with simplify_merges(); the function needs full
analysis of all commits in the specified range, and first-parent
traversal specifically tells us not to descend into other parents.
It might not be a bad idea to forbid this combination when the
command line options are parsed.

What information were you trying to get out of the above command?

Op 8-6-2012 22:09, Junio C Hamano schreef:

Vincent van Ravesteijn[off-list ref]  writes:

quoted

git dies after calling the following command on the git repo:

$ git log f623ca1c...b9cfa4e9 --simplify-by-decoration --first-parent

I wouldn't be surprised anything random happens when --first-parent
is used together with simplify_merges(); the function needs full
analysis of all commits in the specified range, and first-parent
traversal specifically tells us not to descend into other parents.
It might not be a bad idea to forbid this combination when the
command line options are parsed.

What information were you trying to get out of the above command?

I was using gitk and I tried to simplify the history a bit, just for 
visualization,... so I tried by checking "Limit to first parent" and 
"Simple history". Then, git errored out with an out-of-memory error.

Vincent