build.gradle

import java.util.stream.Stream
import java.util.regex.Pattern
import java.nio.file.Paths
import java.nio.file.Files

buildscript {
    repositories {
        maven {
            url "https://plugins.gradle.org/m2/"
        }
    }
    dependencies {
        classpath "com.diffplug.spotless:spotless-plugin-gradle:3.13.0"
    }
}

// Project-Type
apply plugin: "cpp"
// Test Suite
apply plugin: "google-test"
// IDEs
apply plugin: "visual-studio"

apply plugin: "com.diffplug.gradle.spotless"

allprojects {
    model {
        platforms {
            x86 {
                architecture "x86"
            }
            x64 {
                architecture "x64"
            }
        }

        buildTypes {
            debug
            release
        }
    }
}

model {
    visualStudio {
        solution {
            solutionFile.location = ".vs/${name}.sln"
            solutionFile.withContent { TextProvider content ->
                content.asBuilder().insert(0, "# GENERATED FILE: DO NOT EDIT\n")
                content.text = content.text.replaceAll("HideSolutionNode = FALSE", "HideSolutionNode = TRUE")
            }
        }
    }

    components {
        cppstreams(NativeLibrarySpec) {
            if(System.properties['sun.arch.data.model'] == "64") {
                targetPlatform "x64"
            } else {
                targetPlatform "x86"
            }
        }
    }

    binaries {
        all {
            if (toolChain in Gcc) {
                cppCompiler.args "-std=c++11", "-Wall", "-Wextra", "-fPIC"
            }
            if (toolChain in Clang) {
                cppCompiler.args "-std=c++11", "-Weverything", "-Wno-reserved-id-macro", "-Wno-deprecated-dynamic-exception-spec", "-Wno-c++98-compat", "-Wno-sign-conversion"
            }
            if (toolChain in VisualCpp) {
                cppCompiler.args "/W4", "/FS", "/EHsc"
            }

            if(buildType == buildTypes.debug) {
                cppCompiler.define "__DEBUG__"

                if (toolChain in Gcc) {
                    cppCompiler.args "-Og", "-g3"
                }
                if (toolChain in Clang) {
                    cppCompiler.args "-O0", "-g"
                }
                if (toolChain in VisualCpp) {
                    cppCompiler.args "/Od", "/Z7"
                }
            }
            if(buildType == buildTypes.release) {
                cppCompiler.define "__NDEBUG__"

                if (toolChain in Gcc) {
                    cppCompiler.args "-Ofast", "-g0"
                }
                if (toolChain in Clang) {
                    cppCompiler.args "-Ofast", "-g0"
                }
                if (toolChain in VisualCpp) {
                    cppCompiler.args "/O2"
                }
            }
        }
        withType(GoogleTestTestSuiteBinarySpec) {
            lib project: ":lib", library: "googleTest", linkage: "static"

            cppCompiler.define "GOOGLE_TEST"

            if (targetPlatform.operatingSystem.linux) {
                cppCompiler.args "-pthread"
                linker.args "-pthread"
            }
        }
    }
}

spotless {
    format "cpp", {
        target "src/**/*.h", "src/**/*.cpp"

        licenseHeaderFile "LICENSE-header.txt", "#"
    }
}

task doc {
    dependsOn "generateHTMLdoc"
    dependsOn "generatePDFdoc"
}

task generateHTMLdoc(type: Zip, dependsOn: "runDoxygen") {
    inputs.dir "build/doc/gen/html"
    outputs.files "build/doc/${project.name}-doc.zip"

    baseName = "${project.name}-doc"
    version = ""
    destinationDir = file("build/doc")
    from "build/doc/gen/html"
}

task generatePDFdoc(type: Exec, dependsOn: "runDoxygen") {
    onlyIf {
        isCommandAvailable("pdflatex") && isCommandAvailable("make")
    }

    inputs.dir "build/doc/gen/latex"
    outputs.files "build/doc/${project.name}-doc.pdf"

    doFirst {
        def log = file("build/tmp/generatePDFdoc/output.txt")
        log.getParentFile().mkdirs()
        standardOutput = new FileOutputStream(log)
        errorOutput = standardOutput
    }

    doLast {
        copy {
            from "build/doc/gen/latex"
            into "build/doc"

            include "refman.pdf"
            rename "refman.pdf", "${project.name}-doc.pdf"
        }
    }

    workingDir "build/doc/gen/latex"
    executable "make"
}

task runDoxygen(type: Exec) {
    onlyIf {
        isCommandAvailable("doxygen")
    }

    inputs.dir "src"
    inputs.files "Doxyfile"
    outputs.dirs "build/doc/gen"

    doFirst {
        def log = file("build/tmp/runDoxygen/output.txt")
        log.getParentFile().mkdirs()
        standardOutput = new FileOutputStream(log)
        file("build/doc/gen").mkdirs()
    }

    executable "doxygen"
    args "Doxyfile"
}

def isCommandAvailable(String exec) {
    if(System.getProperty("os.name").toLowerCase().contains("windows"))
        exec += ".exe"

    return Stream.of(System.getenv("PATH").split(Pattern.quote(File.pathSeparator)))
        .map({file -> Paths.get(file)})
        .anyMatch({path -> Files.exists(path.resolve(exec))});
}