Bug 426628 - Define V=1 env variable by default for Autotools projects

This enables verbose output which is necessary for proper GCC output parsing.

Change-Id: I965c50cb4ca3ea46e73efa4d8eb3d7de582deabc
Signed-off-by: Marc-Andre Laperle <marc-andre.laperle@ericsson.com>

1 files changed, 65 insertions, 0 deletions

diff --git a/build/org.eclipse.cdt.autotools.core/src/org/eclipse/cdt/internal/autotools/core/AutotoolsEnvironmentVariableSupplier.java b/build/org.eclipse.cdt.autotools.core/src/org/eclipse/cdt/internal/autotools/core/AutotoolsEnvironmentVariableSupplier.java
new file mode 100644
index 00000000000..221578fc9df
--- /dev/null
+++ b/build/org.eclipse.cdt.autotools.core/src/org/eclipse/cdt/internal/autotools/core/AutotoolsEnvironmentVariableSupplier.java
@@ -0,0 +1,65 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Ericson and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Marc-Andre Laperle (Ericsson) - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.internal.autotools.core;
+
+import org.eclipse.cdt.core.envvar.EnvironmentVariable;
+import org.eclipse.cdt.core.envvar.IEnvironmentVariable;
+import org.eclipse.cdt.managedbuilder.core.IConfiguration;
+import org.eclipse.cdt.managedbuilder.envvar.IBuildEnvironmentVariable;
+import org.eclipse.cdt.managedbuilder.envvar.IConfigurationEnvironmentVariableSupplier;
+import org.eclipse.cdt.managedbuilder.envvar.IEnvironmentVariableProvider;
+import org.eclipse.core.runtime.Platform;
+
+/**
+ * Supplies some default environment variables for the Autotools toolchain. For
+ * example, V=1 to enable verbose output necessary for proper GCC output
+ * parsing.
+ *
+ * @noreference This class is not intended to be referenced by clients.
+ * @noextend This class is not intended to be subclassed by clients.
+ */
+public class AutotoolsEnvironmentVariableSupplier implements IConfigurationEnvironmentVariableSupplier {
+
+	private static class VerboseEnvironmentVariable extends EnvironmentVariable implements IBuildEnvironmentVariable {
+		private static final String VERBOSE_VAR_NAME = "V";
+		private static final String VERBOSE_VAR_VALUE = "1";
+
+		private VerboseEnvironmentVariable(String name, String value, int op, String delimiter) {
+			super(name, value, op, delimiter);
+		}
+
+		private static boolean isVar(String name) {
+			// Windows has case insensitive env var names
+			return Platform.getOS().equals(Platform.OS_WIN32) ? name.equalsIgnoreCase(VerboseEnvironmentVariable.VERBOSE_VAR_NAME)
+					: name.equals(VerboseEnvironmentVariable.VERBOSE_VAR_NAME);
+		}
+
+		private static IBuildEnvironmentVariable create(IConfiguration configuration) {
+			return new VerboseEnvironmentVariable(VERBOSE_VAR_NAME, VERBOSE_VAR_VALUE, IEnvironmentVariable.ENVVAR_PREPEND, null);
+		}
+	}
+
+	public IBuildEnvironmentVariable[] getVariables(IConfiguration configuration,
+			IEnvironmentVariableProvider provider) {
+		IBuildEnvironmentVariable path = VerboseEnvironmentVariable.create(configuration);
+		return new IBuildEnvironmentVariable[] { path };
+	}
+
+	@Override
+	public IBuildEnvironmentVariable getVariable(String variableName, IConfiguration configuration,
+			IEnvironmentVariableProvider provider) {
+		if (VerboseEnvironmentVariable.isVar(variableName)) {
+			return VerboseEnvironmentVariable.create(configuration);
+		} else {
+			return null;
+		}
+	}
+}