400 lines
12 KiB
Nix
400 lines
12 KiB
Nix
# This file is generated by gradle2nix.
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#
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# Example usage (e.g. in default.nix):
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#
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# with (import <nixpkgs> {});
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# let
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# buildGradle = callPackage ./gradle-env.nix {};
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# in
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# buildGradle {
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# envSpec = ./gradle-env.json;
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#
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# src = ./.;
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#
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# gradleFlags = [ "installDist" ];
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#
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# installPhase = ''
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# mkdir -p $out
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# cp -r app/build/install/myproject $out
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# '';
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# }
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{ lib
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, stdenv
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, buildEnv
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, fetchs3
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, fetchurl
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, gradleGen
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, writeText
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, writeTextDir
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}:
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{
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# Path to the environment spec generated by gradle2nix (e.g. gradle-env.json).
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envSpec
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, pname ? null
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, version ? null
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, enableParallelBuilding ? true
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# Arguments to Gradle used to build the project in buildPhase.
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, gradleFlags ? [ "build" ]
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# Gradle package to use instead of the one generated by gradle2nix.
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, gradlePackage ? null
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# Enable debugging for the Gradle build; this will cause Gradle to run a debug server
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# and wait for a JVM debugging client to attach.
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, enableDebug ? false
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# Additional code to run in the Gradle init script (init.gradle).
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, extraInit ? ""
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# Override the default JDK used to run Gradle itself.
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, buildJdk ? null
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# Override functions which fetch dependency artifacts.
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# Keys in this set are URL schemes such as "https" or "s3".
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# Values are functions which take a dependency in the form
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# `{ urls, sha256 }` and fetch into the Nix store. For example:
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#
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# {
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# s3 = { urls, sha256 }: fetchs3 {
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# s3url = builtins.head urls;
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# inherit sha256;
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# region = "us-west-2";
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# credentials = {
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# access_key_id = "foo";
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# secret_access_key = "bar";
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# };
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# };
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# }
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, fetchers ? { }
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, ... } @ args:
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let
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inherit (builtins)
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attrValues concatStringsSep filter fromJSON getAttr head match
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replaceStrings sort;
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inherit (lib)
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assertMsg concatMapStringsSep groupBy' hasSuffix hasPrefix last mapAttrs
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mapAttrsToList optionalString readFile removeSuffix unique versionAtLeast
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versionOlder;
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fetchers' = {
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http = fetchurl;
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https = fetchurl;
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s3 = { urls, sha256 }: fetchs3 {
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s3url = head urls;
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inherit sha256;
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};
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} // fetchers;
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# Fetch urls using the scheme for the first entry only; there isn't a
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# straightforward way to tell Nix to try multiple fetchers in turn
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# and short-circuit on the first successful fetch.
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fetch = { urls, sha256 }:
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let
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first = head urls;
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scheme = head (builtins.match "([a-z0-9+.-]+)://.*" first);
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fetch' = getAttr scheme fetchers';
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urls' = filter (hasPrefix scheme) urls;
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in
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fetch' { urls = urls'; inherit sha256; };
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mkDep = { name, path, urls, sha256, ... }: stdenv.mkDerivation {
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inherit name;
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src = fetch {
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inherit urls sha256;
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};
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phases = "installPhase";
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installPhase = ''
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mkdir -p $out/${path}
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ln -s $src $out/${path}/${name}
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'';
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};
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mkModuleMetadata = deps:
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let
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ids = filter
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(id: id.type == "pom")
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(map (dep: dep.id) deps);
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modules = groupBy'
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(meta: id:
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let
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isNewer = versionOlder meta.latest id.version;
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isNewerRelease =
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!(hasSuffix "-SNAPSHOT" id.version) &&
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versionOlder meta.release id.version;
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in {
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groupId = id.group;
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artifactId = id.name;
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latest = if isNewer then id.version else meta.latest;
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release = if isNewerRelease then id.version else meta.release;
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versions = meta.versions ++ [id.version];
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}
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)
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{
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latest = "";
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release = "";
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versions = [];
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}
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(id: "${replaceStrings ["."] ["/"] id.group}/${id.name}/maven-metadata.xml")
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ids;
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in
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attrValues (mapAttrs (path: meta:
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let
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versions' = sort versionOlder (unique meta.versions);
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in
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with meta; writeTextDir path ''
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<?xml version="1.0" encoding="UTF-8"?>
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<metadata modelVersion="1.1">
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<groupId>${groupId}</groupId>
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<artifactId>${artifactId}</artifactId>
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<versioning>
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${optionalString (latest != "") "<latest>${latest}</latest>"}
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${optionalString (release != "") "<release>${release}</release>"}
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<versions>
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${concatMapStringsSep "\n " (v: "<version>${v}</version>") versions'}
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</versions>
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</versioning>
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</metadata>
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''
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) modules);
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mkSnapshotMetadata = deps:
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let
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snapshotDeps = filter (dep: dep ? build && dep ? timestamp) deps;
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modules = groupBy'
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(meta: dep:
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let
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id = dep.id;
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isNewer = dep.build > meta.buildNumber;
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# Timestamp values can be bogus, e.g. jitpack.io
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updated = if (match "[0-9]{8}\.[0-9]{6}" dep.timestamp) != null
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then replaceStrings ["."] [""] dep.timestamp
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else "";
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in {
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groupId = id.group;
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artifactId = id.name;
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version = id.version;
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timestamp = if isNewer then dep.timestamp else meta.timestamp;
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buildNumber = if isNewer then dep.build else meta.buildNumber;
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lastUpdated = if isNewer then updated else meta.lastUpdated;
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versions = meta.versions or [] ++ [{
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classifier = id.classifier or "";
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extension = id.extension;
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value = "${removeSuffix "-SNAPSHOT" id.version}-${dep.timestamp}-${toString dep.build}";
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updated = updated;
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}];
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}
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)
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{
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timestamp = "";
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buildNumber = -1;
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lastUpdated = "";
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}
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(dep: "${replaceStrings ["."] ["/"] dep.id.group}/${dep.id.name}/${dep.id.version}/maven-metadata.xml")
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snapshotDeps;
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mkSnapshotVersion = version: ''
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<snapshotVersion>
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${optionalString (version.classifier != "") "<classifier>${version.classifier}</classifier>"}
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<extension>${version.extension}</extension>
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<value>${version.value}</value>
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${optionalString (version.updated != "") "<updated>${version.updated}</updated>"}
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</snapshotVersion>
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'';
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in
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attrValues (mapAttrs (path: meta:
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with meta; writeTextDir path ''
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<?xml version="1.0" encoding="UTF-8"?>
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<metadata modelVersion="1.1">
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<groupId>${groupId}</groupId>
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<artifactId>${artifactId}</artifactId>
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<version>${version}</version>
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<versioning>
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<snapshot>
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${optionalString (timestamp != "") "<timestamp>${timestamp}</timestamp>"}
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${optionalString (buildNumber != -1) "<buildNumber>${toString buildNumber}</buildNumber>"}
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</snapshot>
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${optionalString (lastUpdated != "") "<lastUpdated>${lastUpdated}</lastUpdated>"}
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<snapshotVersions>
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${concatMapStringsSep "\n " mkSnapshotVersion versions}
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</snapshotVersions>
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</versioning>
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</metadata>
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''
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) modules);
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mkRepo = project: type: deps: buildEnv {
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name = "${project}-gradle-${type}-env";
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paths = map mkDep deps ++ mkModuleMetadata deps ++ mkSnapshotMetadata deps;
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};
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mkInitScript = projectSpec: gradle:
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let
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repos = mapAttrs (mkRepo projectSpec.name) projectSpec.dependencies;
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hasDependencies = mapAttrs (type: deps: deps != []) projectSpec.dependencies;
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inSettings = pred: script:
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optionalString pred (
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if versionAtLeast gradle.version "6.0" then ''
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gradle.beforeSettings {
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${script}
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}
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'' else ''
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gradle.settingsEvaluated {
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${script}
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}
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''
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);
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in
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assert (assertMsg (hasDependencies.settings -> versionAtLeast gradle.version "6.0") ''
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Project `${projectSpec.name}' has settings script dependencies, such as settings
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plugins, which are not supported by gradle2nix for Gradle versions prior to 6.0.
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Potential remedies:
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- Pass `--gradle-version=<version>' to the gradle2nix command.
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- Patch the `settings.gradle[.kts]' file to remove script dependencies.
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'');
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writeText "init.gradle" ''
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static def offlineRepo(RepositoryHandler repositories, String env, String path) {
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repositories.clear()
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repositories.maven {
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name "Nix''${env.capitalize()}MavenOffline"
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url path
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metadataSources {
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it.gradleMetadata()
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it.mavenPom()
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it.artifact()
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}
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}
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repositories.ivy {
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name "Nix''${env.capitalize()}IvyOffline"
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url path
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layout "maven"
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metadataSources {
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it.gradleMetadata()
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it.ivyDescriptor()
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it.artifact()
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}
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}
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}
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${inSettings (hasDependencies.settings && (versionAtLeast gradle.version "6.0")) ''
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offlineRepo(it.buildscript.repositories, "settings", "${repos.settings}")
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''}
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${inSettings (hasDependencies.plugin) ''
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offlineRepo(it.pluginManagement.repositories, "plugin", "${repos.plugin}")
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''}
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${optionalString (hasDependencies.buildscript) ''
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gradle.projectsLoaded {
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allprojects {
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buildscript {
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offlineRepo(repositories, "buildscript", "${repos.buildscript}")
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}
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}
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}
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''}
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${optionalString (hasDependencies.project) (
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if versionAtLeast gradle.version "6.8"
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then ''
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gradle.beforeSettings {
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it.dependencyResolutionManagement {
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offlineRepo(repositories, "project", "${repos.project}")
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repositoriesMode.set(RepositoriesMode.PREFER_SETTINGS)
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}
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}
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''
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else ''
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gradle.projectsLoaded {
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allprojects {
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offlineRepo(repositories, "project", "${repos.project}")
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}
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}
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''
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)}
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${extraInit}
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'';
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mkGradle = gradleSpec:
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gradleGen.gradleGen {
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inherit (gradleSpec) nativeVersion;
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name = "gradle-${gradleSpec.version}-${gradleSpec.type}";
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src = fetchurl {
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inherit (gradleSpec) url sha256;
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};
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} // {
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inherit (gradleSpec) version;
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};
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mkProjectEnv = projectSpec: rec {
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inherit (projectSpec) name path version;
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gradle = args.gradlePackage or mkGradle projectSpec.gradle;
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initScript = mkInitScript projectSpec gradle;
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};
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gradleEnv = mapAttrs
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(_: p: mkProjectEnv p)
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(fromJSON (readFile envSpec));
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projectEnv = gradleEnv."";
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pname = args.pname or projectEnv.name;
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version = args.version or projectEnv.version;
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buildProject = env: flags: ''
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cp ${env.initScript} "$GRADLE_USER_HOME/init.d"
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gradle --offline --no-daemon --no-build-cache \
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--info --full-stacktrace --warning-mode=all \
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${optionalString enableParallelBuilding "--parallel"} \
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${optionalString enableDebug "-Dorg.gradle.debug=true"} \
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${optionalString (buildJdk != null) "-Dorg.gradle.java.home=${buildJdk.home}"} \
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--init-script ${env.initScript} \
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${optionalString (env.path != "") ''-p "${env.path}"''} \
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${concatStringsSep " " flags}
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'';
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buildIncludedProjects =
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concatStringsSep "\n" (mapAttrsToList
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(_: env: buildProject env [ "build" ])
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(removeAttrs gradleEnv [ "" ]));
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buildRootProject = buildProject projectEnv gradleFlags;
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in stdenv.mkDerivation (args // {
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inherit pname version;
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nativeBuildInputs = (args.nativeBuildInputs or []) ++ [ projectEnv.gradle ];
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buildPhase = args.buildPhase or ''
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runHook preBuild
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(
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set -eux
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# Work around https://github.com/gradle/gradle/issues/1055
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TMPHOME="$(mktemp -d)"
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mkdir -p "$TMPHOME/init.d"
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export GRADLE_USER_HOME="$TMPHOME"
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${buildIncludedProjects}
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${buildRootProject}
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)
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runHook postBuild
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'';
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dontStrip = true;
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})
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