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# Build a reproducible tar.gz from a git revision or tag
{ lib
, fetchgit
, runCommandNoCC
, gnutar
, gzip
, getBins
}:
{ url
, sha256
, pname
, subDir ? ""
, ...
}@args:
assert lib.assertMsg (args ? rev || args ? tag) "Need either rev or tag";
let
bins = getBins gzip [ "gzip" ]
// getBins gnutar [ "tar" ]
;
shortRev = args.tag or args.rev;
realRev =
if args ? tag
then "refs/tags/${args.tag}"
else args.rev;
source = fetchgit {
inherit url sha256;
rev = realRev;
};
basename = "${pname}-${shortRev}";
in
runCommandNoCC "${basename}.tar.gz" {} ''
cd ${source}${subDir}
${bins.tar} -c ./ --transform 's/^\./${basename}/' | ${bins.gzip} > $out
''
|
