Add CMake version retrieval

src/main/java/com/jomofisher/cmake/CMake.java

@@ -94,4 +94,28 @@ public String getVersionString() throws IOException {
         }
         return line.substring(CMAKE_VERSION_LINE_PREFIX.length());
     }
+
+    /**
+     * Get the current CMake version as a structure
+     */
+    public CMakeVersion getVersion() throws IOException {
+        String string = getVersionString();
+        String[] parts = string.split("\\.");
+        if (parts[2].contains("-")) {
+            // There is a tag, as in 3.6.0-rc2
+            String[] subparts = parts[2].split("-");
+            return new CMakeVersion(
+                    Integer.parseInt(parts[0]),
+                    Integer.parseInt(parts[1]),
+                    Integer.parseInt(subparts[0]),
+                    subparts[1]);
+        }
+
+        // There's no tag
+        return new CMakeVersion(
+                Integer.parseInt(parts[0]),
+                Integer.parseInt(parts[1]),
+                Integer.parseInt(parts[2]),
+                "");
+    }
 }

src/main/java/com/jomofisher/cmake/CMakeVersion.java

@@ -0,0 +1,18 @@
+package com.jomofisher.cmake;
+
+/**
+ * A CMake release version
+ */
+public class CMakeVersion {
+    final public int major;
+    final public int minor;
+    final public int point;
+    final public String tag;
+
+    CMakeVersion(int major, int minor, int point, String tag) {
+        this.major = major;
+        this.minor = minor;
+        this.point = point;
+        this.tag = tag;
+    }
+}

src/test/java/com/jomofisher/tests/cmake/TestCMakeServer.java

@@ -19,6 +19,7 @@
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.jomofisher.cmake.CMake;
+import com.jomofisher.cmake.CMakeVersion;
 import com.jomofisher.cmake.database.Compilation;
 import com.jomofisher.cmake.serverv1.*;
 import com.jomofisher.literatehash.LiterateHash;
@@ -380,6 +381,18 @@ public void testAndroidStudioCMakeVersion() throws Exception {
         CMake cmake = new CMake(getAndroidStudioCMakeExecutable().getParentFile());
         String version = cmake.getVersionString();
         assertThat(version).isEqualTo("3.6.0-rc2");
+        CMakeVersion cmakeVersion = cmake.getVersion();
+        assertThat(cmakeVersion.major).isEqualTo(3);
+        assertThat(cmakeVersion.minor).isEqualTo(6);
+        assertThat(cmakeVersion.point).isEqualTo(0);
+        assertThat(cmakeVersion.tag).isEqualTo("rc2");
+    }
+
+    @Test
+    public void testCMakeVersion() throws Exception {
+        CMake cmake = new CMake(getCMakeInstallFolder());
+        CMakeVersion cmakeVersion = cmake.getVersion();
+        assertThat(cmakeVersion.major).isEqualTo(3);
     }
 
     @Test