core/pkgs/build-support/fetchsourcehut/default.nix

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{ fetchgit, fetchhg, fetchzip, lib }:
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let inherit (lib) assertOneOf makeOverridable optionalString;
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in makeOverridable ({ owner, repo, rev, domain ? "sr.ht", vc ? "git"
, name ? "source", fetchSubmodules ? false, ... # For hash agility
}@args:
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assert (assertOneOf "vc" vc [ "hg" "git" ]);
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let
urlFor = resource: "https://${resource}.${domain}/${owner}/${repo}";
baseUrl = urlFor vc;
baseArgs = {
inherit name;
} // removeAttrs args [
"owner"
"repo"
"rev"
"domain"
"vc"
"name"
"fetchSubmodules"
];
vcArgs = baseArgs // {
inherit rev;
url = baseUrl;
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};
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fetcher = if fetchSubmodules then vc else "zip";
cases = {
git = {
fetch = fetchgit;
arguments = vcArgs // { fetchSubmodules = true; };
};
hg = {
fetch = fetchhg;
arguments = vcArgs // { fetchSubrepos = true; };
};
zip = {
fetch = fetchzip;
arguments = baseArgs // {
url = "${baseUrl}/archive/${rev}.tar.gz";
postFetch = optionalString (vc == "hg") ''
rm -f "$out/.hg_archival.txt"
''; # impure file; see #12002
passthru = { gitRepoUrl = urlFor "git"; };
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};
};
};
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in cases.${fetcher}.fetch cases.${fetcher}.arguments // {
inherit rev;
meta.homepage = "${baseUrl}";
})