Refresh compile_commands.json during the build (#1098)

CMake compile_commands.json file is not found even though it has been
created. During a CMake build's generation stage, it generates the
compile_commands.json file inside the build folder. However,
when it comes to be used it is not found because it hasn't been
reliably refreshed.

To solve this, the file resource is refreshed

Co-authored-by: John Moule <[email protected]>

Author: jonahgraham

cmake/org.eclipse.cdt.cmake.core/src/org/eclipse/cdt/cmake/core/CMakeBuildConfiguration.java

@@ -237,6 +237,7 @@ public IProject[] build(int kind, Map<String, String> args, IConsole console, IP
 			}
 
 			// parse compile_commands.json file
+			getCompileCommandsFile().refreshLocal(IResource.DEPTH_ZERO, monitor);
 			processCompileCommandsFile(console, monitor);
 
 			infoStream.write(String.format(Messages.CMakeBuildConfiguration_BuildingIn, buildDir.toString()));
@@ -346,14 +347,18 @@ public void clean(IConsole console, IProgressMonitor monitor) throws CoreExcepti
 		}
 	}
 
+	private IFile getCompileCommandsFile() throws CoreException {
+		return getBuildContainer().getFile(new org.eclipse.core.runtime.Path("compile_commands.json")); //$NON-NLS-1$
+	}
+
 	/**
 	 * @param console the console to print the compiler output during built-ins detection to or
 	 *                <code>null</code> if no separate console is to be allocated. Ignored if
 	 *                workspace preferences indicate that no console output is wanted.
 	 * @param monitor the job's progress monitor
 	 */
 	private void processCompileCommandsFile(IConsole console, IProgressMonitor monitor) throws CoreException {
-		IFile file = getBuildContainer().getFile(new org.eclipse.core.runtime.Path("compile_commands.json")); //$NON-NLS-1$
+		IFile file = getCompileCommandsFile();
 		CompileCommandsJsonParser parser = new CompileCommandsJsonParser(
 				new ParseRequest(file, new CMakeIndexerInfoConsumer(this::setScannerInformation),
 						CommandLauncherManager.getInstance().getCommandLauncher(this), console));