Show total number of revisions about git-messenger.vim HOT 4 OPEN

@rhysd you don't need to iteratively call git blame, you can get a count directly with e.g. git rev-list --count HEAD <path>. This should match the chain you get from following the blames, though you might also need --no-merges to skip merge commits.

There's still a small performance concern, but it should be fine if this could be called asynchronously, so it doesn't delay the popup. You could also limit the runtime with e.g. --max-count 1001 and display that as 1000+.

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@toupeira

Nice. (I'm sorry for the delay. I missed to catch the comment) I'll consider to add this functionality.

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Thank you for the suggestion.

Yeah, it would be nice to have. However, with current implementation, it requires large code changes and tradeoff.

The history of revisions is a chain of git blame. Based on first source location, git-messenger.vim gets previous revision and source location using git blame. And based on the source location, git-messenger.vim gets older revision and source location using git blame. So it's something like iterating uni-direction linked list.

So git-messenger.vim cannot know the number of revisions under the cursor until it reaches 'no previous revision'. It's possible to fetch all revisions at first :GitMessenger, but it spawns many shell commands and would take time. For those who don't want revisions history, it is a pure overhead.

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Ohh I see. If it's too complicated then feel free to close.

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