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The source code for this post can be found here. I've written it in Rust, but you can find git implementations in lots of other languages. The canonical git is written in C.
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The source code for this post can be found here. I've written it in Rust, but you can find git implementations in lots of other languages. The canonical git is written in C.
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Let's add a library to read these compressed files. We'll use the Rust library flate2, which includes the functionality we need plus much more.
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Cargo.lock --- .git/a 2021-10-30 14:01:38.000000000 -0700 +++ .git/b 2021-10-30 14:01:38.000000000 -0700 @@ -3,5 +3,63 @@ version = 3 [[package]] +name = "adler" +version = "1.0.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe" + +[[package]] +name = "autocfg" +version = "1.0.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a" + +[[package]] +name = "cfg-if" +version = "1.0.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd" + +[[package]] +name = "crc32fast" +version = "1.2.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "81156fece84ab6a9f2afdb109ce3ae577e42b1228441eded99bd77f627953b1a" +dependencies = [ + "cfg-if", +] + +[[package]] +name = "flate2" +version = "1.0.22" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "1e6988e897c1c9c485f43b47a529cef42fde0547f9d8d41a7062518f1d8fc53f" +dependencies = [ + "cfg-if", + "crc32fast", + "libc", + "miniz_oxide", +] + +[[package]] name = "git" version = "0.1.0" +dependencies = [ + "flate2", +] + +[[package]] +name = "libc" +version = "0.2.103" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "dd8f7255a17a627354f321ef0055d63b898c6fb27eff628af4d1b66b7331edf6" + +[[package]] +name = "miniz_oxide" +version = "0.4.4" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "a92518e98c078586bc6c934028adcca4c92a53d6a958196de835170a01d84e4b" +dependencies = [ + "adler", + "autocfg", +] Cargo.toml --- .git/a 2021-10-30 14:01:38.000000000 -0700 +++ .git/b 2021-10-30 14:01:38.000000000 -0700 @@ -6,3 +6,4 @@ # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html [dependencies] +flate2 = "1.0.22"