[PlutoLib] The initial implementation of the Version API

UPDATE_NOTES.md

@@ -14,6 +14,10 @@
     * `[PlutoShader]` Added the `HSBA` and `HSB` single precision float color objects
     * `[PlutoShader]` Added methods to convert between HSBA, RGBA, HSB and RGB
     * `[PlutoShader]` Added the `UniformRGBA` and `UniformRGB` shader uniform types
+* `[PlutoLib]` Created the Version API
+    * Added the `IVersion` interface
+    * Added support for version objects
+    * As a result, all fields except the version string are no longer compile-time constants
 
 Awaiting implementation:
 * `[PlutoLib]` Moved `cz.tefek.pluto.io.pluto.pp` to `cz.tefek.pluto.io.plutopackage`
@@ -31,7 +35,7 @@ Awaiting implementation:
     * Renamed `VertexArray#createArrayAttrib` to `VertexArray#createArrayAttribute`
     * Renamed `VertexArray#getVertexAttribs` to `VertexArray#getVertexAttributes`
 * `[PlutoCore]` Made `PlutoApplication.StartupConfig` fields private, options
-can now only be modified only through public setters
+  can now only be modified only through public setters
 * `[PlutoLib]` Added the `ThreadSensitive` annotation
 * `[PlutoLib]` Renamed `MiniTimeCouldNotBeParsedException` to `MiniTimeParseException`
 * `[PlutoCore]` Refactored `InputBus` and added several convenience methods

plutolib/build.gradle

@@ -2,6 +2,35 @@ apply plugin: 'java-library'
 
 description = ""
 
+
+sourceSets {
+    config {
+        java {
+            srcDir "src/config/java"
+        }
+    }
+
+    main {
+        java {
+            compileClasspath += config.output
+        }
+    }
+}
+
+task generateConfigs(type: Copy) {
+    def projectVariables = [
+        plutoVersion: project.version,
+    ]
+
+    inputs.properties projectVariables
+    from 'src/config/java'
+    into "$buildDir/generated/java"
+
+    expand projectVariables
+}
+
+compileJava.dependsOn generateConfigs
+
 dependencies {
     api platform("org.lwjgl:lwjgl-bom:$lwjglVersion")
 

plutolib/src/config/java/cz/tefek/pluto/PlutoVersionConfig.java

@@ -0,0 +1,11 @@
+package cz.tefek.pluto;
+
+class PlutoVersionConfig
+{
+    /**
+     * The combined version string.
+     *
+     * @since 20.2.0.0-alpha.3
+     * */
+    protected static final String VERSION = "$plutoVersion";
+}

plutolib/src/main/java/cz/tefek/pluto/IVersion.java

@@ -0,0 +1,13 @@
+package cz.tefek.pluto;
+
+public interface IVersion<T> extends Comparable<T>
+{
+    @Override
+    boolean equals(Object o);
+
+    @Override
+    int hashCode();
+
+    @Override
+    String toString();
+}

plutolib/src/main/java/cz/tefek/pluto/Pluto.java

@@ -7,65 +7,70 @@ package cz.tefek.pluto;
  *
  * @author 493msi
  */
-public class Pluto
+public class Pluto extends PlutoVersionConfig
 {
     public static final boolean DEBUG_MODE = Boolean.parseBoolean(System.getProperty("cz.tefek.pluto.debug"));
 
-    // TODO: Automate setting the version numbers with gradle
-
-    /**
-     * The year version number, changes with breaking API changes.
-     *
-     * @since pre-alpha
-     * */
-    public static final int VERSION_YEAR = 20;
-
-    /**
-     * The major version number, changes with breaking API changes.
-     *
-     * @since pre-alpha
-     * */
-    public static final int VERSION_MAJOR = 2;
-
-    /**
-     * The minor version number, changes with backwards-compatible API changes.
-     *
-     * @since pre-alpha
-     * */
-    public static final int VERSION_MINOR = 0;
-
-    /**
-     * The patch number, changes with backwards-compatible fixes and patches.
-     *
-     * @since pre-alpha
-     * */
-    public static final int VERSION_PATCH = 0;
-
-    /**
-     * Denotes whether this build is a pre-release build.
-     *
-     * @since pre-alpha
-     * */
-    public static final boolean PRERELEASE = true;
-
-    /**
-     * The name of this pre-release, e.g. alpha, beta, RC and similar.
-     *
-     * @since pre-alpha
-     * */
-    public static final String PRERELEASE_NAME = "alpha";
-
-    /**
-     * The pre-release patch number, incremented by 1 with *any* pre-release update.
-     *
-     * @since pre-alpha
-     * */
-    public static final int PRERELEASE_PATCH = 3;
-
     /**
      * The combined version string.
      *
      * @since pre-alpha
      * */
-    public static final String VERSION = VERSION_YEAR + "." + VERSION_MAJOR + "." + VERSION_MINOR + "." + VERSION_PATCH + (PRERELEASE ? "-" + PRERELEASE_NAME + "." + PRERELEASE_PATCH : "");
+    public static final String VERSION = PlutoVersionConfig.VERSION;
+
+    /**
+     * The version object.
+     *
+     * @since 20.2.0.0-alpha.3
+     * */
+    public static final PlutoVersion VERSION_OBJ = PlutoVersion.of(VERSION);
+
+    /**
+     * The year version number, changes with breaking API changes.
+     *
+     * @since pre-alpha
+     * */
+    public static final int VERSION_YEAR = VERSION_OBJ.getYear();
+
+    /**
+     * The major version number, changes with breaking API changes.
+     *
+     * @since pre-alpha
+     * */
+    public static final int VERSION_MAJOR = VERSION_OBJ.getMajor();
+
+    /**
+     * The minor version number, changes with backwards-compatible API changes.
+     *
+     * @since pre-alpha
+     * */
+    public static final int VERSION_MINOR = VERSION_OBJ.getMinor();
+
+    /**
+     * The patch number, changes with backwards-compatible fixes and patches.
+     *
+     * @since pre-alpha
+     * */
+    public static final int VERSION_PATCH = VERSION_OBJ.getPatch();
+
+    /**
+     * Denotes whether this build is a pre-release build.
+     *
+     * @since pre-alpha
+     * */
+    public static final boolean PRERELEASE = VERSION_OBJ.isPrerelease();
+
+    /**
+     * The name of this pre-release, e.g. alpha, beta, RC and similar.
+     *
+     * @since pre-alpha
+     * */
+    public static final String PRERELEASE_NAME = VERSION_OBJ.getPrereleaseName();
+
+    /**
+     * The pre-release patch number, incremented by 1 with *any* pre-release update.
+     *
+     * @since pre-alpha
+     * */
+    public static final int PRERELEASE_PATCH = VERSION_OBJ.getPrereleaseNumber();
 }

plutolib/src/main/java/cz/tefek/pluto/PlutoVersion.java

@@ -0,0 +1,216 @@
+package cz.tefek.pluto;
+
+import javax.annotation.Nonnull;
+
+import java.util.Objects;
+
+import cz.tefek.pluto.annotation.ConstantExpression;
+
+public final class PlutoVersion implements IVersion<PlutoVersion>
+{
+    private final int year;
+    private final int major;
+    private final int minor;
+    private final int patch;
+
+    private final boolean prerelease;
+    private final String prereleaseName;
+    private final int prereleaseNumber;
+
+    public PlutoVersion(int year, int major, int minor, int patch)
+    {
+        this.year = year;
+        this.major = major;
+        this.minor = minor;
+        this.patch = patch;
+
+        this.prerelease = false;
+        this.prereleaseName = null;
+        this.prereleaseNumber = 0;
+    }
+
+    public PlutoVersion(int year, int major, int minor, int patch, String prereleaseName, int prereleaseNumber)
+    {
+        this.year = year;
+        this.major = major;
+        this.minor = minor;
+        this.patch = patch;
+        
+        this.prerelease = true;
+        this.prereleaseName = prereleaseName;
+        this.prereleaseNumber = prereleaseNumber;
+    }
+
+    public int getYear()
+    {
+        return this.year;
+    }
+
+    public int getMajor()
+    {
+        return this.major;
+    }
+
+    public int getMinor()
+    {
+        return this.minor;
+    }
+
+    public int getPatch()
+    {
+        return this.patch;
+    }
+
+    public boolean isPrerelease()
+    {
+        return this.prerelease;
+    }
+
+    public String getPrereleaseName()
+    {
+        return this.prereleaseName;
+    }
+
+    public int getPrereleaseNumber()
+    {
+        return this.prereleaseNumber;
+    }
+
+    @ConstantExpression
+    public static PlutoVersion of(@Nonnull String str)
+    {
+        assert !str.isBlank();
+
+        assert str.matches("[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+([+\\-][a-zA-Z0-9]+(\\.[0-9]+)?)?");
+
+        var parts = str.split("[+\\-]");
+
+        assert parts.length == 1 || parts.length == 2;
+
+        var versionParts = parts[0].split("\\.");
+
+        assert versionParts.length == 4;
+
+        if (parts.length == 2)
+        {
+            var prereleaseParts = parts[1].split("\\.");
+
+            assert prereleaseParts.length == 1 || prereleaseParts.length == 2;
+
+            int prereleaseNumber;
+
+            if (prereleaseParts.length == 2)
+                prereleaseNumber = Integer.parseInt(prereleaseParts[1]);
+            else
+                prereleaseNumber = 0;
+
+            String prereleaseName = prereleaseParts[0];
+
+            return new PlutoVersion(
+                    Integer.parseInt(versionParts[0]),
+                    Integer.parseInt(versionParts[1]),
+                    Integer.parseInt(versionParts[2]),
+                    Integer.parseInt(versionParts[3]),
+                    prereleaseName,
+                    prereleaseNumber);
+        }
+
+        return new PlutoVersion(
+                Integer.parseInt(versionParts[0]),
+                Integer.parseInt(versionParts[1]),
+                Integer.parseInt(versionParts[2]),
+                Integer.parseInt(versionParts[3]));
+    }
+
+    @Override
+    public String toString()
+    {
+        if (prerelease)
+            return String.format("%d.%d.%d.%d-%s.%d",
+                    this.year,
+                    this.major,
+                    this.minor,
+                    this.patch,
+                    this.prereleaseName,
+                    this.prereleaseNumber);
+        else
+            return String.format("%d.%d.%d.%d",
+                    this.year,
+                    this.major,
+                    this.minor,
+                    this.patch);
+    }
+
+    @Override
+    public int compareTo(@Nonnull PlutoVersion o)
+    {
+        int yearDiff = this.year - o.year;
+        if (yearDiff != 0)
+            return yearDiff;
+
+        int majorDiff = this.major - o.major;
+        if (majorDiff != 0)
+            return majorDiff;
+
+        int minorDiff = this.minor - o.minor;
+        if (minorDiff != 0)
+            return minorDiff;
+
+        int patchDiff = this.patch - o.patch;
+        if (patchDiff != 0)
+            return patchDiff;
+
+        if (!this.prerelease && !o.prerelease)
+            return 0;
+
+        if (!this.prerelease)
+            return 1;
+
+        if (!o.prerelease)
+            return -1;
+
+        assert this.prereleaseName != null;
+        assert o.prereleaseName != null;
+
+        int prereleaseNameDiff = this.prereleaseName.compareTo(o.prereleaseName);
+
+        if (prereleaseNameDiff != 0)
+            return prereleaseNameDiff;
+
+        return this.prereleaseNumber - o.prereleaseNumber;
+    }
+
+    @Override
+    public boolean equals(Object o)
+    {
+        if (this == o)
+            return true;
+
+        if (o == null || getClass() != o.getClass())
+            return false;
+
+        PlutoVersion that = (PlutoVersion) o;
+
+        if (prerelease)
+            return year == that.year &&
+                    major == that.major &&
+                    minor == that.minor &&
+                    patch == that.patch &&
+                    prereleaseNumber == that.prereleaseNumber &&
+                    Objects.equals(prereleaseName, that.prereleaseName);
+        else
+            return year == that.year &&
+                    major == that.major &&
+                    minor == that.minor &&
+                    patch == that.patch;
+    }
+
+    @Override
+    public int hashCode()
+    {
+        if (prerelease)
+            return Objects.hash(year, major, minor, patch);
+        else
+            return Objects.hash(year, major, minor, patch, prereleaseName, prereleaseNumber);
+    }
+}