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djanderson / aho Public

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A git implementation in awk

MIT License
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@djanderson
djanderson Track a reflog of commits - no reflog command yet
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8cd5cb7 Aug 27, 2021
Track a reflog of commits - no reflog command yet
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include
Track a reflog of commits - no reflog command yet
Aug 28, 2021
test
Add very simple test directory and runner
Jul 4, 2021
.gitignore
Aho now understand working tree and can find repo root
Jul 15, 2021
LICENSE
Initial commit
Jun 11, 2021
README.md
Holy moly - commits and status work
Aug 25, 2021
aho
Add stub for rm command - doesn't actually modify working tree yet
Jul 4, 2021
aho.awk
Track a reflog of commits - no reflog command yet
Aug 28, 2021
modpath
Add very simple test directory and runner
Jul 4, 2021
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Aho But why? Quickstart Contributing TODO:

README.md

 Aho

A Git implementation in AWK.

 But why?

I've had the irrational desire to write something substantial in AWK
for a while. Figured I might as well learn some Git internals while I
scratch this itch.

 Quickstart

You'll need gawk >= 5.0, and I currently use pigz for zlib
compression. Everything else should be provided by GNU coreutils. In
other words, this should run on most linuxes, not so much on BSDs/
Mac.

$ source ./modpath
$ aho init
Initialized empty Git repository in .aho
$ aho add -v .
add '.gitignore'
add 'LICENSE'
add 'README.md'
add 'aho'
add 'aho.awk'
add 'include/add.awk'
add 'include/branches.awk'
add 'include/config.awk'
[...]
$ echo "neat" > testfile
$ aho add -v .
add 'testfile'
$ tree .aho/
.aho/
+-- branches
+-- config
+-- description
+-- HEAD
+-- index
+-- objects
|   +-- 16
|   |   +-- dfbb852d5efb5e1a75ad336c8f62ebb94a82f0
|   +-- 42
|   |   +-- 2c6135819b57720ace71e3c6c97eb072b5b430
|   +-- 51
|   |   +-- 2807153b4d4abffab8490ce97e5a164fe7de1f
|   +-- 62
|   |   +-- 9effea54a58d8734f57d9412a5964f69578477
|   +-- 64
|   |   +-- c66bb623af4a10aa3bca2da143c75ab4e2186f
[...]
+-- refs
    +-- heads
    +-- tags

29 directories, 29 files
$ GIT_DIR=.aho git ls-files --stage
100664 d88545d4bb077b2e3fcefbddcf5bae071b426e9f 0       .gitignore
100664 a6ccf43e60c7876e67e3358952c0bf60a2882eef 0       LICENSE
100664 f88631a9692c0b9f9bc2f484c6fc68587bb90770 0       README.md
100775 8657d76021987bc2cd3c2d4c5958fdab053c6326 0       aho
100664 f2aeb629f8513094675557138b3f83dbfa5a4895 0       aho.awk
100664 b1c9cc72d22414a18635d33656dbc216ff774e57 0       include/add.awk
100664 512807153b4d4abffab8490ce97e5a164fe7de1f 0       include/branches.awk
100664 16dfbb852d5efb5e1a75ad336c8f62ebb94a82f0 0       include/config.awk
[...]

 Contributing

I welcome any input that helps improve my knowledge of AWK or Git!

 TODO:

  * [*] init
  * [*] add/rm
  * [*] status
  * [*] commit
  * [ ] reset
  * [ ] branch
  * [ ] switch
  * [*] config (read-only)
  * [ ] ls-files
  * [*] cat-file

I don't plan to add network functionality to this (even though you
totally can), so no clone or push.

About

A git implementation in awk

Resources

Readme

License

MIT License

Languages

  * Awk 99.1%
  * Shell 0.9%

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