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buildMaven: Update buildMaven to pure Nix

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Change the code that builds the maven repository to one using pure nix
rather than a bash script.
This commit is contained in:
Farid Zakaria 2020-10-15 12:14:59 -07:00
parent 8b4d70ca94
commit 09abb91d14
1 changed files with 46 additions and 39 deletions
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85
pkgs/build-support/build-maven.nix
View file

@ -1,52 +1,60 @@
{ stdenv, maven, runCommand, writeText, fetchurl, lib, requireFile }:
/* Takes an info file generated by mvn2nix
* (https://github.com/NixOS/mvn2nix-maven-plugin) and builds the maven
* project with it.
*
* repo: A local maven repository with the project's dependencies.
*
* settings: A settings.xml to pass to maven to use the repo.
*
* build: A simple build derivation that uses mvn compile and package to build
* the project.
*/
infoFile: let
{ stdenv, maven, runCommand, writeText, fetchurl, lib, requireFile, linkFarm }:
# Takes an info file generated by mvn2nix
# (https://github.com/NixOS/mvn2nix-maven-plugin) and builds the maven
# project with it.
#
# repo: A local maven repository with the project's dependencies.
#
# settings: A settings.xml to pass to maven to use the repo.
#
# build: A simple build derivation that uses mvn compile and package to build
# the project.
#
# @example
# project = pkgs.buildMaven ./project-info.json
infoFile:
let
info = lib.importJSON infoFile;
script = writeText "build-maven-repository.sh" ''
${lib.concatStrings (map (dep: let
dependencies = lib.flatten (map (dep:
let
inherit (dep) sha1 groupId artifactId version metadata repository-id;
versionDir = dep.unresolved-version or version;
authenticated = dep.authenticated or false;
url = dep.url or "";
fetch = if (url != "") then ((if authenticated then requireFile else fetchurl) {
inherit url sha1;
}) else "";
fetch = if (url != "") then
((if authenticated then requireFile else fetchurl) {
inherit url sha1;
})
else
"";
fetchMetadata = (if authenticated then requireFile else fetchurl) {
inherit (metadata) url sha1;
};
in ''
dir=$out/$(echo ${groupId} | sed 's|\.|/|g')/${artifactId}/${versionDir}
mkdir -p $dir
${lib.optionalString (fetch != "") ''
ln -sv ${fetch} $dir/${fetch.name}
''}
${lib.optionalString (dep ? metadata) ''
ln -svf ${fetchMetadata} $dir/maven-metadata-${repository-id}.xml
${lib.optionalString (fetch != "") ''
ln -sv ${fetch} $dir/$(echo ${fetch.name} | sed 's|${version}|${dep.unresolved-version}|')
''}
''}
'') info.dependencies)}
'';
layout = "${
builtins.replaceStrings [ "." ] [ "/" ] groupId
}/${artifactId}/${versionDir}";
in lib.optional (url != "") {
layout = "${layout}/${fetch.name}";
drv = fetch;
} ++ lib.optionals (dep ? metadata) ([{
layout = "${layout}/maven-metadata-${repository-id}.xml";
drv = fetchMetadata;
}] ++ lib.optional (fetch != "") {
layout = "${layout}/${
builtins.replaceStrings [ version ] [ dep.unresolved-version ]
fetch.name
}";
drv = fetch;
})) info.dependencies);
repo = runCommand "maven-repository" {} ''
bash ${script}
'';
repo = linkFarm "maven-repository" (lib.forEach dependencies (dependency: {
name = dependency.layout;
path = dependency.drv;
}));
settings = writeText "settings.xml" ''
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
@ -65,9 +73,8 @@ in {
name = "${info.project.artifactId}-${info.project.version}.jar";
src = builtins.filterSource (path: type:
(toString path) != (toString (src + "/target")) &&
(toString path) != (toString (src + "/.git"))
) src;
(toString path) != (toString (src + "/target")) && (toString path)
!= (toString (src + "/.git"))) src;
buildInputs = [ maven ];