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jbranchaud
69 lines
2.5 KiB
Markdown
69 lines
2.5 KiB
Markdown
# List All Authors On Git Repository
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The `git log` is the ledger of all commits made to the repository. If I am on
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the `main` branch and I have the latest pulled from the remote, then running
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`git log` will be a complete listing of all commits.
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`git log` includes more information than just authorship. I can narrow that all
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down to only author name and author email using the `--format` flag. For all the
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format string options available, I can run `man git-log` and jump to the `PRETTY
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FORMATS` section, scrolling just past the built-in formats.
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The two I am interested in are `%an` (Author Name) and `%ae` (Author Email). I
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can arrange these however I want in the format string argument. Here is what it
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looks like for the [`egghead-next`
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project](https://github.com/skillrecordings/egghead-next):
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```bash
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❯ git log --format='%an <%ae>'
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Zac Jones <zacjones93@gmail.com>
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Zac Jones <zacjones93@gmail.com>
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Zac Jones <zacjones93@gmail.com>
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Zac Jones <zacjones93@gmail.com>
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Zac Jones <zacjones93@gmail.com>
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Zac Jones <zacjones93@gmail.com>
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Zac Jones <zacjones93@gmail.com>
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John Lindquist <johnlindquist@gmail.com>
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Zac Jones <zacjones93@gmail.com>
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...
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```
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I get _name_ followed by _email_ wrapped in angle brackets. This is only so
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useful though because I am going to see tons duplicate authors especially for a
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project with hundreds and thousands of commits. I can narrow this down with [a
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deduplication trick via
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`awk`](unix/deduplicate-list-while-preserving-original-order.md):
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```bash
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❯ git log --format='%an <%ae>' | awk '!seen[$0]++'
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Zac Jones <zacjones93@gmail.com>
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John Lindquist <johnlindquist@gmail.com>
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Josh Branchaud <jbranchaud@gmail.com>
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Vojta Holik <vojta@egghead.io>
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Creeland A. Provinsal <cree@egghead.io>
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joel <joelhooks@gmail.com>
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Creeland <cree@provinsal.com>
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...
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```
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That's already a big improvement. The only other change I want to make is
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related to the default ordering of `git log`. It lists out commits in descending
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order (most recent first). I want to see authors listed in the order that they
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first committed to the project. Adding in the `--reverse` flag will solve for
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that.
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```bash
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❯ git log --reverse --format='%an <%ae>' | awk '!seen[$0]++'
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Joel Hooks <joelhooks@gmail.com>
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johnlindquist <johnlindquist@gmail.com>
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John Lindquist <johnlindquist@gmail.com>
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William Johnson <w.alexander.johnson@gmail.com>
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depfu[bot] <23717796+depfu[bot]@users.noreply.github.com>
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Evgeniy Nagalskiy <evgeniy.nagalskiy@gmail.com>
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Taylor Bell <taylorbell@gmail.com>
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Maggie Appleton <maggie.fm.appleton@gmail.com>
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...
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```
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See `man git-log` for more details.
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