Build scripts

README.md

@@ -244,9 +244,13 @@ Dear ImGui by default uses a stb_strutype library to render a fonts atlas. It's
 * Read [javadoc](https://javadoc.io/doc/io.imgui.java/binding) and sources comments to get more info.
 
 ## How to Build
-To build native libraries you should install `mingw-w64` and `ant`. Modify [GenerateLibs](https://github.com/SpaiR/imgui-java/blob/master/buildSrc/src/main/groovy/imgui/generate/GenerateLibs.groovy)
-to build specific binaries you need. After you've configured everything, run `gradlew :imgui-binding:generateLibs`.
-That will build native libraries and place them in `imgui-binding/build/libsNative` folder.
+To build native libraries you need:
+ - Unix-like system (MacOS to build natives for Mac)
+ - Installed dependencies: `mingw-w64`, `ant`, `freetype2`
+
+After you've configured everything, run `gradlew :imgui-binding:generateLibs -Denvs=${envShortcut} -Dlocal`.<br>
+`envShortcut` could be `win32`, `win64`, `linux32`, `linux64` or `mac64`.<br>
+`-Dlocal` is optional and means that natives will be built under the `./imgui-binding/build/` folder. Otherwise `/tmp/imgui` folder will be used.
 
 ## Credits
 Binding partly based on the work of [xpenatan](https://github.com/xpenatan) and his version [jDear-imgui](https://github.com/xpenatan/jDear-imgui).

buildSrc/scripts/build-natives-linux64-local.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+BASEDIR=$(dirname "$0")
+cd $BASEDIR/../../imgui-binding || exit
+
+../gradlew clean generateLibs -Denvs=linux64 -Dlocal
+rm -frd libsNative

buildSrc/scripts/build-natives-mac64.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+BASEDIR=$(dirname "$0")
+cd $BASEDIR/../../imgui-binding || exit
+
+rm -frd /tmp/imgui
+../gradlew clean generateLibs -Denvs=mac64

buildSrc/scripts/build-natives-win_linux.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+BASEDIR=$(dirname "$0")
+cd $BASEDIR/../../imgui-binding || exit
+
+rm -frd /tmp/imgui
+../gradlew clean generateLibs -Denvs=win32,win64,linux32,linux64

buildSrc/scripts/copy-natives-mac64.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+BASEDIR=$(dirname "$0")
+cd $BASEDIR/../.. || exit
+
+cp /tmp/imgui/libsNative/macosx64/libimgui-java64.dylib ./bin

buildSrc/scripts/copy-natives-win_linux.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+BASEDIR=$(dirname "$0")
+cd $BASEDIR/../.. || exit
+
+cp /tmp/imgui/libsNative/windows32/imgui-java.dll ./bin
+cp /tmp/imgui/libsNative/windows64/imgui-java64.dll ./bin
+cp /tmp/imgui/libsNative/linux32/libimgui-java.so ./bin
+cp /tmp/imgui/libsNative/linux64/libimgui-java64.so ./bin

buildSrc/src/main/groovy/imgui/generate/GenerateLibs.groovy

@@ -8,12 +8,21 @@ import org.gradle.api.tasks.TaskAction
 
 @CompileStatic
 class GenerateLibs extends DefaultTask {
-    String description = 'Generates native libraries using classes under ":imgui-binding" and Dear-ImGui itself from "imgui" submodule.'
+    String description = 'Generates native libraries using classes under ":imgui-binding" and Dear ImGui itself from "imgui" submodule.'
+
+    private final String[] buildEnvs = System.getProperty('envs')?.split(',')
+    private final boolean forWin32 = buildEnvs?.contains('win32')
+    private final boolean forWin64 = buildEnvs?.contains('win64')
+    private final boolean forLinux32 = buildEnvs?.contains('linux32')
+    private final boolean forLinux64 = buildEnvs?.contains('linux64')
+    private final boolean forMac64 = buildEnvs?.contains('mac64')
+
+    private final boolean isLocal = System.properties.containsKey("local")
 
     private final String sourceDir = project.file('src/main/java')
     private final String classpath = project.file('build/classes/java/main')
-    private final String jniDir = project.buildDir.path + '/jni'
-    private final String tmpFolder = project.buildDir.path + '/tmp'
+    private final String jniDir = (isLocal ? project.buildDir.path : '/tmp/imgui') + '/jni'
+    private final String tmpFolder = (isLocal ? project.buildDir.path : '/tmp/imgui') + '/tmp'
     private final String libsFolder = 'libsNative'
 
     @TaskAction
@@ -31,41 +40,60 @@ class GenerateLibs extends DefaultTask {
 
         // Generate platform dependant ant configs and header files
         def buildConfig = new BuildConfig('imgui-java', tmpFolder, libsFolder, jniDir)
+        def buildTargets = [] as BuildTarget[]
 
-        def win32 = BuildTarget.newDefaultTarget(BuildTarget.TargetOs.Windows, false)
-        def win64 = BuildTarget.newDefaultTarget(BuildTarget.TargetOs.Windows, true)
+        if (forWin32) {
+            def win32 = BuildTarget.newDefaultTarget(BuildTarget.TargetOs.Windows, false)
+            win32.cppFlags += ' -fstack-protector -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include'
+            win32.libraries += '-lfreetype -lbz2 -lssp'
+            buildTargets += win32
+        }
+        if (forWin64) {
+            def win64 = BuildTarget.newDefaultTarget(BuildTarget.TargetOs.Windows, true)
+            win64.cppFlags += ' -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include'
+            win64.libraries += '-lfreetype -lbz2 -lssp'
+            buildTargets += win64
+        }
 
-        def linux32 = BuildTarget.newDefaultTarget(BuildTarget.TargetOs.Linux, false)
-        def linux64 = BuildTarget.newDefaultTarget(BuildTarget.TargetOs.Linux, true)
+        if (forLinux32) {
+            def linux32 = BuildTarget.newDefaultTarget(BuildTarget.TargetOs.Linux, false)
+            linux32.cppFlags += ' -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include'
+            linux32.linkerFlags += ' -lfreetype'
+            buildTargets += linux32
+        }
+        if (forLinux64) {
+            def linux64 = BuildTarget.newDefaultTarget(BuildTarget.TargetOs.Linux, true)
+            linux64.cppFlags += ' -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include'
+            linux64.linkerFlags += ' -lfreetype'
+            buildTargets += linux64
+        }
 
-        def mac64 = BuildTarget.newDefaultTarget(BuildTarget.TargetOs.MacOsX, true)
-        mac64.cppFlags += " -stdlib=libc++"
-        mac64.cppFlags = mac64.cppFlags.replaceAll("10.5", "10.9")
-        mac64.linkerFlags = mac64.linkerFlags.replaceAll("10.5", "10.9")
+        if (forMac64) {
+            def mac64 = BuildTarget.newDefaultTarget(BuildTarget.TargetOs.MacOsX, true)
+            mac64.cppFlags += ' -stdlib=libc++'
+            mac64.cppFlags = mac64.cppFlags.replaceAll('10.5', '10.9')
+            mac64.linkerFlags = mac64.linkerFlags.replaceAll('10.5', '10.9')
+            mac64.cppFlags += ' -I/usr/local/include/freetype2 -I/usr/local/include/libpng16 -I/usr/local/include/harfbuzz -I/usr/local/include/glib-2.0 -I/usr/local/lib/glib-2.0/include'
+            mac64.linkerFlags += ' -lfreetype'
+            buildTargets += mac64
+        }
 
-        // Freetype Deps Config
-        win32.cppFlags += " -fstack-protector -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include"
-        win32.libraries += "-lfreetype -lbz2 -lssp"
-        win64.cppFlags += " -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include"
-        win64.libraries += "-lfreetype -lbz2 -lssp"
-        linux32.cppFlags += " -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include"
-        linux32.linkerFlags += " -lfreetype"
-        linux64.cppFlags += " -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include"
-        linux64.linkerFlags += " -lfreetype"
-        mac64.cppFlags += " -I/usr/local/include/freetype2 -I/usr/local/include/libpng16 -I/usr/local/include/harfbuzz -I/usr/local/include/glib-2.0 -I/usr/local/lib/glib-2.0/include"
-        mac64.linkerFlags += " -lfreetype"
-        // End
-
-        new AntScriptGenerator().generate(buildConfig, win32, win64, linux32, linux64, mac64)
+        new AntScriptGenerator().generate(buildConfig, buildTargets)
 
         // Generate native libraries
         // Comment/uncomment lines with OS you need.
 
-        BuildExecutor.executeAnt(jniDir + '/build-windows32.xml', '-v', '-Dhas-compiler=true', '-Drelease=true', 'clean', 'postcompile')
-        BuildExecutor.executeAnt(jniDir + '/build-windows64.xml', '-v', '-Dhas-compiler=true', '-Drelease=true', 'clean', 'postcompile')
-        BuildExecutor.executeAnt(jniDir + '/build-linux32.xml', '-v', '-Dhas-compiler=true', '-Drelease=true', 'clean', 'postcompile')
-        BuildExecutor.executeAnt(jniDir + '/build-linux64.xml', '-v', '-Dhas-compiler=true', '-Drelease=true', 'clean', 'postcompile')
-        BuildExecutor.executeAnt(jniDir + '/build-macosx64.xml', '-v', '-Dhas-compiler=true', '-Drelease=true', 'clean', 'postcompile')
+        if (forWin32)
+            BuildExecutor.executeAnt(jniDir + '/build-windows32.xml', '-v', '-Dhas-compiler=true', '-Drelease=true', 'clean', 'postcompile')
+        if (forWin64)
+            BuildExecutor.executeAnt(jniDir + '/build-windows64.xml', '-v', '-Dhas-compiler=true', '-Drelease=true', 'clean', 'postcompile')
+        if (forLinux32)
+            BuildExecutor.executeAnt(jniDir + '/build-linux32.xml', '-v', '-Dhas-compiler=true', '-Drelease=true', 'clean', 'postcompile')
+        if (forLinux64)
+            BuildExecutor.executeAnt(jniDir + '/build-linux64.xml', '-v', '-Dhas-compiler=true', '-Drelease=true', 'clean', 'postcompile')
+        if (forMac64)
+            BuildExecutor.executeAnt(jniDir + '/build-macosx64.xml', '-v', '-Dhas-compiler=true', '-Drelease=true', 'clean', 'postcompile')
+
         BuildExecutor.executeAnt(jniDir + '/build.xml', '-v', 'pack-natives')
     }
 }