IntelliJ - how to get the classpath for a module - intellij-idea

I'm new to IntelliJ and working on a big project with hundreds of modules, I was just wondering how would I get the classpath for a specific module?

It might help you. Because each module has its own independent classpath. You can combine the classpaths of all modules in the project, and that's what that method did, but trying to use that classpath is unlikely to result in correct behavior in multi-module projects.
public static String getFullClassPath(Module m){
String cp = "";
cp += CompilerPaths.getModuleOutputPath(m,false);
for(VirtualFile vf : OrderEnumerator.orderEntries(m).recursively().getClassesRoots()){
String entry = new File(vf.getPath()).getAbsolutePath();
if(entry.endsWith("!/")){ //not sure why it happens in the returned paths
entry = entry.substring(0,entry.length()-2);
}
if(entry.endsWith("!")){
entry = entry.substring(0,entry.length()-1);
}
cp += File.pathSeparator + entry;
}
return cp;
}

Related

Is there any way of getting version from build.gradle of a kotlin project?

I want to get the version of my project inside my project which I have set in build.gradle. Is there any method to get the version inside my project as I need to show the version inside my software and used for compairing update info, so that I don't need to change twice every time I release a update. Is there any way to make it?
group 'ProjectName.group'
version "ProjectVersion"
You typically do that by loading a properties file, and configuring gradle to filter your properties file in the processResources task.
Example:
build.gradle:
version = '1.5.0'
processResources {
def properties = ['version': project.version]
inputs.properties(properties)
filesMatching('version.properties') {
expand(properties)
}
}
version.properties:
version=${version}
App.java:
public static void main(String[] args) throws IOException {
Properties properties = new Properties();
properties.load(App.class.getResourceAsStream("/version.properties"));
System.out.println(properties.getProperty("version"));
}

Gradle Javadoc plugin custom task with Doclava invalid flag -link

I am adding my custom gradle task in my libraries build.gradle with Doclava implementation as:
android.libraryVariants.all { variant ->
task("generateNew${variant.name.capitalize()}Javadoc", type: Javadoc) {
title = ""
destinationDir = new File("${project.getProjectDir()}/doc/compiled/", variant.baseName)
description "Generates Javadoc for $variant.name."
source = variant.javaCompile.source
ext.androidJar = "${android.sdkDirectory}/platforms/${android.compileSdkVersion}/android.jar"
classpath = files(variant.javaCompile.classpath.files) + files(ext.androidJar) + project.files(android.getBootClasspath().join(File.pathSeparator))
options {
memberLevel = org.gradle.external.javadoc.JavadocMemberLevel.PRIVATE
links "http://docs.oracle.com/javase/8/docs/api/"
linksOffline "http://d.android.com/reference", "${android.sdkDirectory}/docs/reference"
doclet = "com.google.doclava.Doclava"
List<File> pathList = new ArrayList<File>();
pathList.add(file('./libs/doclava-1.0.6.jar'))
docletpath = pathList
}
exclude '**/BuildConfig.java'
exclude '**/R.java'
}
}
and when I run the task gradle give me the error javadoc: error - invalid flag: -link. But the task can be run when I remove the links & linksOffline option. Another problem is the provided PRIVATE member option is not working, the generated document shows only public members.
Is there any way around to fix it so that with the Doclava doclet I can get the reference links to the Android and Java references?

Setting the version number for .NET Core projects

What are the options for setting a project version with .NET Core / ASP.NET Core projects?
Found so far:
Set the version property in project.json. Source: DNX Overview, Working with DNX projects. This seems to set the AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion unless overridden by an attribute (see next point).
Setting the AssemblyVersion, AssemblyFileVersion, AssemblyInformationalVersion attributes also seems to work and override the version property specified in project.json.
For example, including 'version':'4.1.1-*' in project.json and setting [assembly:AssemblyFileVersion("4.3.5.0")] in a .cs file will result in AssemblyVersion=4.1.1.0, AssemblyInformationalVersion=4.1.1.0 and AssemblyFileVersion=4.3.5.0
Is setting the version number via attributes, e.g. AssemblyFileVersion, still supported?
Have I missed something - are there other ways?
Context
The scenario I'm looking at is sharing a single version number between multiple related projects. Some of the projects are using .NET Core (project.json), others are using the full .NET Framework (.csproj). All are logically part of a single system and versioned together.
The strategy we used up until now is having a SharedAssemblyInfo.cs file at the root of our solution with the AssemblyVersion and AssemblyFileVersion attributes. The projects include a link to the file.
I'm looking for ways to achieve the same result with .NET Core projects, i.e. have a single file to modify.
You can create a Directory.Build.props file in the root/parent folder of your projects and set the version information there.
However, now you can add a new property to every project in one step by defining it in a single file called Directory.Build.props in the root folder that contains your source. When MSBuild runs, Microsoft.Common.props searches your directory structure for the Directory.Build.props file (and Microsoft.Common.targets looks for Directory.Build.targets). If it finds one, it imports the property. Directory.Build.props is a user-defined file that provides customizations to projects under a directory.
For example:
<Project>
<PropertyGroup>
<Version>0.0.0.0</Version>
<FileVersion>0.0.0.0</FileVersion>
<InformationalVersion>0.0.0.0.myversion</InformationalVersion>
</PropertyGroup>
</Project>
Another option for setting version info when calling build or publish is to use the undocumented /p option.
dotnet command internally passes these flags to MSBuild.
Example:
dotnet publish ./MyProject.csproj /p:Version="1.2.3" /p:InformationalVersion="1.2.3-qa"
See here for more information: https://github.com/dotnet/docs/issues/7568
Not sure if this helps, but you can set version suffixes at publish time. Our versions are usually datetime driven, so that developers don't have to remember to update them.
If your json has something like "1.0-*"
"dotnet publish --version-suffix 2016.01.02" will make it "1.0-2016.01.02".
It's important to stick to "semvar" standards, or else you'll get errors. Dotnet publish will tell you.
Why not just change the value in the project.json file. Using CakeBuild you could do something like this (optimizations probably possible)
Task("Bump").Does(() => {
var files = GetFiles(config.SrcDir + "**/project.json");
foreach(var file in files)
{
Information("Processing: {0}", file);
var path = file.ToString();
var trg = new StringBuilder();
var regExVersion = new System.Text.RegularExpressions.Regex("\"version\":(\\s)?\"0.0.0-\\*\",");
using (var src = System.IO.File.OpenRead(path))
{
using (var reader = new StreamReader(src))
{
while (!reader.EndOfStream)
{
var line = reader.ReadLine();
if(line == null)
continue;
line = regExVersion.Replace(line, string.Format("\"version\": \"{0}\",", config.SemVer));
trg.AppendLine(line);
}
}
}
System.IO.File.WriteAllText(path, trg.ToString());
}
});
Then if you have e.g. a UnitTest project that takes a dependency on the project, use "*" for dependency resolution.
Also, do the bump before doing dotnet restore. My order is as follows:
Task("Default")
.IsDependentOn("InitOutDir")
.IsDependentOn("Bump")
.IsDependentOn("Restore")
.IsDependentOn("Build")
.IsDependentOn("UnitTest");
Task("CI")
.IsDependentOn("Default")
.IsDependentOn("Pack");
Link to full build script: https://github.com/danielwertheim/Ensure.That/blob/3a278f05d940d9994f0fde9266c6f2c41900a884/build.cake
The actual values, e.g. the version is coming from importing a separate build.config file, in the build script:
#load "./buildconfig.cake"
var config = BuildConfig.Create(Context, BuildSystem);
The config file looks like this (taken from https://github.com/danielwertheim/Ensure.That/blob/3a278f05d940d9994f0fde9266c6f2c41900a884/buildconfig.cake):
public class BuildConfig
{
private const string Version = "5.0.0";
public readonly string SrcDir = "./src/";
public readonly string OutDir = "./build/";
public string Target { get; private set; }
public string Branch { get; private set; }
public string SemVer { get; private set; }
public string BuildProfile { get; private set; }
public bool IsTeamCityBuild { get; private set; }
public static BuildConfig Create(
ICakeContext context,
BuildSystem buildSystem)
{
if (context == null)
throw new ArgumentNullException("context");
var target = context.Argument("target", "Default");
var branch = context.Argument("branch", string.Empty);
var branchIsRelease = branch.ToLower() == "release";
var buildRevision = context.Argument("buildrevision", "0");
return new BuildConfig
{
Target = target,
Branch = branch,
SemVer = Version + (branchIsRelease ? string.Empty : "-b" + buildRevision),
BuildProfile = context.Argument("configuration", "Release"),
IsTeamCityBuild = buildSystem.TeamCity.IsRunningOnTeamCity
};
}
}
If you still want to have the Solution Level SharedVersionInfo.cs you can do it by adding these lines to your project.json file:
"buildOptions": {
"compile": {
"includeFiles": [
"../../SharedVersionInfo.cs"
]
}
}
Your relative path may vary, of course.
use external version.txt file with version, and prebuild step to publish this version in projects

How to pass parameters or arguments into a Gradle task?

I have a Gradle build script into which I am trying to include Eric Wendelin's CSS plugin.
It's easy enough to implement, and because I only want minification (rather than combining and gzipping), I've got the pertinent parts of the build script looking like this:
minifyCss {
source = "src/main/webapp/css/brandA/styles.css"
dest = "${buildDir}/brandA/styles.css"
yuicompressor {
lineBreakPos = -1
}
}
war {
baseName = 'ex-ren'
}
war.doFirst {
tasks.myTask.minifyCss.execute()
}
This is perfect - when I run the gradle war task, it calls the minifyCss task, takes the source css file, and creates a minified version in the buildDir
However, I have a handful of css files which need minify-ing, but not combining into one file (hence I'm not using the combineCss task)
What I'd like to be able to do is make the source and dest properties (assuming that's the correct terminology?) of the minifyCss task reference variables of some sort - either variables passed into the task in the signature, or global variables, or something ...
Something like this I guess (which doesn't work):
minifyCss(sourceFile, destFile) {
source = sourceFile
dest = destFile
yuicompressor {
lineBreakPos = -1
}
}
war {
baseName = 'ex-ren'
}
war.doFirst {
tasks.myTask.minifyCss.execute("src/main/webapp/css/brandA/styles.css", "${buildDir}/brandA/styles.css")
tasks.myTask.minifyCss.execute("src/main/webapp/css/brandB/styles.css", "${buildDir}/brandB/styles.css")
tasks.myTask.minifyCss.execute("src/main/webapp/css/brandC/styles.css", "${buildDir}/brandC/styles.css")
}
This doesn't work either:
def sourceFile = null
def destFile = null
minifyCss {
source = sourceFile
dest = destFile
yuicompressor {
lineBreakPos = -1
}
}
war {
baseName = 'ex-ren'
}
war.doFirst {
sourceFile = "src/main/webapp/css/brandA/styles.css"
destFile = "${buildDir}/brandA/styles.css"
tasks.myTask.minifyCss.execute()
}
For the life of me I cannot work out how to call a task and pass variables in :(
Any help very much appreciated;
You should consider passing the -P argument in invoking Gradle.
From Gradle Documentation :
--project-prop
Sets a project property of the root project, for example -Pmyprop=myvalue. See Section 14.2, “Gradle properties and system properties”.
Considering this build.gradle
task printProp << {
println customProp
}
Invoking Gradle -PcustomProp=myProp will give this output :
$ gradle -PcustomProp=myProp printProp
:printProp
myProp
BUILD SUCCESSFUL
Total time: 3.722 secs
This is the way I found to pass parameters.
If the task you want to pass parameters to is of type JavaExec and you are using Gradle 5, for example the application plugin's run task, then you can pass your parameters through the --args=... command line option. For example gradle run --args="foo --bar=true".
Otherwise there is no convenient builtin way to do this, but there are 3 workarounds.
1. If few values, task creation function
If the possible values are few and are known in advance, you can programmatically create a task for each of them:
void createTask(String platform) {
String taskName = "myTask_" + platform;
task (taskName) {
... do what you want
}
}
String[] platforms = ["macosx", "linux32", "linux64"];
for(String platform : platforms) {
createTask(platform);
}
You would then call your tasks the following way:
./gradlew myTask_macosx
2. Standard input hack
A convenient hack is to pass the arguments through standard input, and have your task read from it:
./gradlew myTask <<<"arg1 arg2 arg\ in\ several\ parts"
with code below:
String[] splitIntoTokens(String commandLine) {
String regex = "(([\"']).*?\\2|(?:[^\\\\ ]+\\\\\\s+)+[^\\\\ ]+|\\S+)";
Matcher matcher = Pattern.compile(regex).matcher(commandLine);
ArrayList<String> result = new ArrayList<>();
while (matcher.find()) {
result.add(matcher.group());
}
return result.toArray();
}
task taskName, {
doFirst {
String typed = new Scanner(System.in).nextLine();
String[] parsed = splitIntoTokens(typed);
println ("Arguments received: " + parsed.join(" "))
... do what you want
}
}
You will also need to add the following lines at the top of your build script:
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.Scanner;
3. -P parameters
The last option is to pass a -P parameter to Gradle:
./gradlew myTask -PmyArg=hello
You can then access it as myArg in your build script:
task myTask {
doFirst {
println myArg
... do what you want
}
}
Credit to #789 for his answer on splitting arguments into tokens
I would suggest the method presented on the Gradle forum:
def createMinifyCssTask(def brand, def sourceFile, def destFile) {
return tasks.create("minify${brand}Css", com.eriwen.gradle.css.tasks.MinifyCssTask) {
source = sourceFile
dest = destFile
}
}
I have used this method myself to create custom tasks, and it works very well.
task mathOnProperties << {
println Integer.parseInt(a)+Integer.parseInt(b)
println new Integer(a) * new Integer(b)
}
$ gradle -Pa=3 -Pb=4 mathOnProperties
:mathOnProperties
7
12
BUILD SUCCESSFUL
Its nothing more easy.
run command: ./gradlew clean -PjobId=9999
and
in gradle use: println(project.gradle.startParameter.projectProperties)
You will get clue.
I think you probably want to view the minification of each set of css as a separate task
task minifyBrandACss(type: com.eriwen.gradle.css.tasks.MinifyCssTask) {
source = "src/main/webapp/css/brandA/styles.css"
dest = "${buildDir}/brandA/styles.css"
}
etc etc
BTW executing your minify tasks in an action of the war task seems odd to me - wouldn't it make more sense to make them a dependency of the war task?
Here is a solution for Kotlin DSL (build.gradle.kts).
I first try to get the variable as a property and if it was null try to get it from OS environment variables (can be useful in CIs like GitHub Actions).
tasks.create("MyCustomTask") {
val songName = properties["songName"]
?: System.getenv("SONG_NAME")
?: error("""Property "songName" or environment variable "SONG_NAME" not found""")
// OR getting the property with 'by'. Did not work for me!
// For this approach, name of the variable should be the same as the property name
// val songName: String? by properties
println("The song name: $songName")
}
We can then pass a value for the property from command line:
./gradlew MyCustomTask -PsongName="Black Forest"
Or create a file named local.properties at the root of the project and set the property:
songName=Black Forest
We can also add an env variable named SONG_NAME with our desired value and then run the task:
./gradlew MyCustomTask

Android studio | Dependency Management

Can anyone suggest, how can we add a dependency at build time in android gradle based on some condition like:
dependencies{
if(someCondition){
// add dependency
}
}
Thanks in advance!!
I found a solution for this:
Step1: Declare a boolean variable in gradle at root level.
like: def someDependencyEnabled = true //This could be dynamically set.
Step2: Using this boolean variable we can apply a check like:
if(someDependencyEnabled){
//Add some dependency
}
else
{
//Add some other dependency
}
Step3: Define Different source set for different situations:
android.sourceSets {
main {
java.srcDirs = ['src/main/java', someDependencyEnabled ? 'src/dependency_enabled_src' : 'src/dependency_disabled_src']
}
}
where:
'src/main/java' : is the common src file which contain common code.
'src/dependency_enabled_src': is the source folder that contain dependency specific code. which is further used by 'src/main/java'.
'src/dependency_disabled_src': is the source folder that contain alternate code when particular dependency is disabled.
In my case I wrote same name classes, methods & package name in both folders (dependency_enabled & dependency_disabled src) and wrote methods with desired implementation in dependency_enabled_src & empty methods for dependency_disabled_src.