94 lines
2.4 KiB
Nix
94 lines
2.4 KiB
Nix
# Adaptation of the MIT-licensed work on `sbt2nix` done by Charles O'Farrell
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{
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lib,
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fetchurl,
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stdenv,
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}:
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let
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defaultRepos = [
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"https://repo1.maven.org/maven2"
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"https://oss.sonatype.org/content/repositories/releases"
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"https://oss.sonatype.org/content/repositories/public"
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"https://repo.typesafe.com/typesafe/releases"
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];
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in
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args@{
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# Example: "org.apache.httpcomponents"
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groupId,
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# Example: "httpclient"
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artifactId,
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# Example: "4.3.6"
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version,
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# Example: "jdk11"
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classifier ? null,
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# List of maven repositories from where to fetch the artifact.
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# Example: [ http://oss.sonatype.org/content/repositories/public ].
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repos ? defaultRepos,
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# The `url` and `urls` parameters, if specified should point to the JAR
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# file and will take precedence over the `repos` parameter. Only one of `url`
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# and `urls` can be specified, not both.
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url ? "",
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urls ? [ ],
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# The rest of the arguments are just forwarded to `fetchurl`.
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...
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}:
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# only one of url and urls can be specified at a time.
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assert (url == "") || (urls == [ ]);
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# if repos is empty, then url or urls must be specified.
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assert (repos != [ ]) || (url != "") || (urls != [ ]);
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let
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pname =
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(lib.replaceStrings [ "." ] [ "_" ] groupId)
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+ "_"
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+ (lib.replaceStrings [ "." ] [ "_" ] artifactId);
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suffix = lib.optionalString (classifier != null) "-${classifier}";
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filename = "${artifactId}-${version}${suffix}.jar";
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mkJarUrl =
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repoUrl:
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lib.concatStringsSep "/" [
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(lib.removeSuffix "/" repoUrl)
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(lib.replaceStrings [ "." ] [ "/" ] groupId)
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artifactId
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version
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filename
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];
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urls_ =
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if url != "" then
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[ url ]
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else if urls != [ ] then
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urls
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else
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map mkJarUrl repos;
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jar = fetchurl (
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builtins.removeAttrs args [
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"groupId"
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"artifactId"
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"version"
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"classifier"
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"repos"
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"url"
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]
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// {
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urls = urls_;
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name = "${pname}-${version}.jar";
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}
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);
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in
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stdenv.mkDerivation {
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inherit pname version;
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dontUnpack = true;
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# By moving the jar to $out/share/java we make it discoverable by java
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# packages packages that mention this derivation in their buildInputs.
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installPhase = ''
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mkdir -p $out/share/java
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ln -s ${jar} $out/share/java/${filename}
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'';
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# We also add a `jar` attribute that can be used to easily obtain the path
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# to the downloaded jar file.
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passthru.jar = jar;
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}
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