mirror of
https://github.com/NixOS/nixpkgs.git
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e54ec2f907
fetchMavenArtifact downloads a Maven artifact given a group id, an artifact id,
and a version.
Example usage:
org_apache_httpcomponents_httpclient_4_5_2 = fetchMavenArtifact {
groupId = "org.apache.httpcomponents";
artifactId = "httpclient";
version = "4.5.2";
sha256 = "0ms00zc28pwqk83nwwbafhq6p8zci9mrjzbqalpn6v0d80hwdzqd";
# Optionally: repos = [ ... urls to some Maven repos to use ... ];
# Optionally: url, urls - pointing directly to a specific jar url.
};
Now `org_apache_httpcomponents_httpclient_4_5_2.jar` points to the downloaded
JAR file, while `org_apache_httpcomponents_httpclient_4_5_2` refers to a
derivation that when used used in `buildInputs` will be automatically added to
the Java classpath.
76 lines
2.2 KiB
Nix
76 lines
2.2 KiB
Nix
# Adaptation of the MIT-licensed work on `sbt2nix` done by Charles O'Farrell
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{ fetchurl, stdenv }:
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let
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defaultRepos = [
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http://central.maven.org/maven2
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http://oss.sonatype.org/content/repositories/releases
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http://oss.sonatype.org/content/repositories/public
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http://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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, # 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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name_ =
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with stdenv.lib; concatStrings [
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(replaceChars ["."] ["_"] groupId) "_"
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(replaceChars ["."] ["_"] artifactId) "-"
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version
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];
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mkJarUrl = repoUrl:
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with stdenv.lib; concatStringsSep "/" [
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(removeSuffix "/" repoUrl)
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(replaceChars ["."] ["/"] groupId)
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artifactId
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version
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"${artifactId}-${version}.jar"
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];
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urls_ =
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if url != "" then [url]
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else if urls != [] then urls
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else map mkJarUrl repos;
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jar =
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fetchurl (
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builtins.removeAttrs args ["groupId" "artifactId" "version" "repos" "url" ]
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// { urls = urls_; name = "${name_}.jar"; }
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);
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in
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stdenv.mkDerivation {
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name = name_;
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phases = "installPhase fixupPhase";
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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
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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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