What is --loc=surv? I can't find any definition for it anywhere.

For getting the contribution stats in a git repo, I found git-fame by casperdcl on GitHub. It offers a chart of contributions per contributor. I don't consider the sum of insertions and deletions in git a good scale. but git-fame offers another option called "surviving lines-of-code" (--loc=surv). but I don't understand what it is. When should I use it? Is it a better scale to count contributions?

CodePudding user response：

First, it is not "in git". It is a feature added to casperdcl/git-fame in its release v1.14.0 Q4 2020, and commit 2d34d84.

Any executable named git-xxx (in $PATH) can be called with git xxx, giving the illusion that xxx is a Git command. It is not.

Second, as illustrated in issue 59, it is the default option.

I didn't expect any differences between git-fame and git-fame --loc=surviving - and there are none.

Third, it does measure lines which are still there between commit (which have not been added or removed), which allows to:

• associate options like --ignore-rev or --ignore-revs-file=<f> (valid only for surviving lines),
• exlude options like --cost (time cost in person-months (COCOMO) or person-hours (based on commit times), which is only based on delta (lines added/removed)

CodePudding user response：

The following was answered by the developer of git-fame, casperdcl on this issue:

Does it just count the last revision on that line?

--loc=surv indeed counts "just the last revision on that line." It may be useful to also include -M and -C options.

looking for the best way to measure how much I have to pay my devs.

Here be dragons