Log should list ALL commits from any branch similar to `git log --all`

[jelaniwoods]

Doesn't look like this is easy to do by default with the git gem.

The log method only supports a count paramater
https://github.com/ruby-git/ruby-git/blob/861eb71e1c266606eefacf7ebd4bee4f34bee5de/lib/git/base/factory.rb#L39-L42

The log_commits method supports a few flags, but not all.
https://github.com/ruby-git/ruby-git/blob/861eb71e1c266606eefacf7ebd4bee4f34bee5de/lib/git/lib.rb#L129-L137

https://github.com/ruby-git/ruby-git/blob/861eb71e1c266606eefacf7ebd4bee4f34bee5de/lib/git/lib.rb#L1022-L1034

[raghubetina]

Is it... could it be... time to

We may have to traverse the graph ourselves and draw it?

[jelaniwoods]

@raghubetina I'm not sure how we'd do that using the gem at least. It doesn't seem possible to get the graph itself. Unless you're referring to building the graph by going to each branch and grabbing all the commits? That sounds... intense 😯

[raghubetina]

@jelaniwoods Yes indeed, that is what I was referring to. Traversing the graph ourselves — y'know, computer science stuff! Once every two years or so, there comes a chance to use it.

Commit by commit, if necessary. This is how git itself does it — each commit knows who its parent(s) is, and git follows that back to draw the log or graph.

I don't know what commands are available in the gem, but I speculate that we could simplify producing the graph with something like:

• List all branches
• For each branch, git log and save the list of commit SHAs
• Find common commit SHAs
• Merge the logs at those points

I also speculate that there are a bunch of JS libraries out there that can help draw the tree, once we have it in a suitable data structure.

Just spitballin' though.

[raghubetina]

@jelaniwoods Just checking in on this — any progress? I would like to do a session on how to jump back and forth between commits this week or next. I'm happy to pair on this one together.

[jelaniwoods]

@raghubetina I made some progress. I have a list of Hashes, where each Hash represents a branch. The Hash has a key for branch name, HEAD, and an Array of all the commit SHA's from the branch. I've combined them into one list of all commit SHAs but still need to find the HEADs of all branches and verify the order of the commits.

#62

[raghubetina]

@jelaniwoods Okay. If we iterate over each branch and do a git log, would that give us the list of commits in the correct order?

[jelaniwoods]

@raghubetina I assumed that would be the case, but either I made an error with the logic somewhere or --graph sorts it differently. The order I got was slightly different.