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# nurl
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[![release](https://img.shields.io/github/v/release/nix-community/nurl?logo=github&style=flat-square)](https://github.com/nix-community/nurl/releases)
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[![version](https://img.shields.io/crates/v/nurl?logo=rust&style=flat-square)][crate]
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[![deps](https://deps.rs/repo/github/nix-community/nurl/status.svg?style=flat-square&compact=true)](https://deps.rs/repo/github/nix-community/nurl)
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[![license](https://img.shields.io/badge/license-MPL--2.0-blue?style=flat-square)](https://www.mozilla.org/en-US/MPL/2.0)
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[![ci](https://img.shields.io/github/actions/workflow/status/nix-community/nurl/ci.yml?label=ci&logo=github-actions&style=flat-square)](https://github.com/nix-community/nurl/actions?query=workflow:ci)
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2022-12-30 05:04:19 +03:00
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Generate Nix fetcher calls from repository URLs
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2023-01-01 04:04:34 +03:00
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```console
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$ nurl https://github.com/nix-community/patsh v0.2.0 2>/dev/null
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fetchFromGitHub {
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owner = "nix-community";
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repo = "patsh";
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rev = "v0.2.0";
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hash = "sha256-7HXJspebluQeejKYmVA7sy/F3dtU1gc4eAbKiPexMMA=";
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}
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```
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2023-01-01 04:04:34 +03:00
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## Supported Fetchers
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- fetchFromBitbucket
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- fetchFromGitHub
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- fetchFromGitLab
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- fetchFromGitea
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- fetchFromGitiles
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- fetchFromRepoOrCz
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- fetchFromSourcehut
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- fetchgit
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- fetchhg (requires `--fetcher fetchhg`)
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## Usage
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```
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Usage: nurl [OPTIONS] [URL] [REV]
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Arguments:
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[URL] URL to the repository to be fetched
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[REV] the revision or reference to be fetched
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Options:
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-f, --fetcher <FETCHER> specify the fetcher function instead of inferring from the
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URL [possible values: fetchFromBitbucket, fetchFromGitHub,
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fetchFromGitLab, fetchFromGitea, fetchFromGitiles,
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fetchFromRepoOrCz, fetchFromSourcehut, fetchgit, fetchhg]
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-i, --indent <INDENT> extra indentation (in number of spaces) [default: 0]
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-j, --json output in json format
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-a, --arg <NAME> <EXPR> additional arguments to pass to the fetcher
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-A, --arg-str <NAME> <STRING> same as --arg, but accepts strings instead Nix expressions
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-o, --overwrite <NAME> <EXPR> overwrite arguments in the final output, not taken into
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consideration when fetching the hash
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-O, --overwrite-str <NAME> <STRING> same as --overwrite, but accepts strings instead Nix
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expressions
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-l, --list-fetchers List all available fetchers
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-L, --list-possible-fetchers List all fetchers that can be generated without --fetcher
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-h, --help Print help information
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-V, --version Print version information
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```
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2023-01-01 06:30:54 +03:00
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## Comparison to [nix-prefetch](https://github.com/msteen/nix-prefetch)
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- `nurl` infers the fetcher from the URL. For `nix-prefetch`, you need to pick the fetcher and supply the arguments manually.
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- `nix-prefetch` relies on FOD which is slow, `nurl` tries to use alternatives when possible.
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- `nix-prefetch` supports arbitrary expressions (planned for `nurl`) and file attributes.
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- `nix-prefetch` is more configurable and has an interface similar to `nix-build`.
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- `nurl` has some nice features dedicated to generated packages (`--indent`, `--list-possible-fetchers`).
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## Changelog
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See [CHANGELOG.md](CHANGELOG.md)
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[crate]: https://crates.io/crates/nurl
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