A Git implementation in AWK.
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.
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
[...]I welcome any input that helps improve my knowledge of AWK or Git!
- 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.