Add support for getting the system wide configuration

These settings are stored in <prefix>/etc/gitconfig. The C Git
binary is installed in <prefix>/bin, so we look for the C Git
executable to find this location, first by looking at the PATH
environment variable and then by attemting to launch bash as
a login shell to find out.

Bug: 333216
Change-Id: I1bbee9fb123a81714a34a9cc242b92beacfbb4a8
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>

1 files changed, 31 insertions, 12 deletions

diff --git a/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/MockSystemReader.java b/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/MockSystemReader.java
index 5c2e77f673..b53dce2161 100644
--- a/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/MockSystemReader.java
+++ b/org.eclipse.jgit.junit/src/org/eclipse/jgit/junit/MockSystemReader.java
@@ -45,39 +45,50 @@
 
 package org.eclipse.jgit.junit;
 
+import java.io.File;
 import java.io.IOException;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.TimeZone;
 
 import org.eclipse.jgit.errors.ConfigInvalidException;
+import org.eclipse.jgit.lib.Config;
 import org.eclipse.jgit.lib.Constants;
 import org.eclipse.jgit.storage.file.FileBasedConfig;
 import org.eclipse.jgit.util.FS;
 import org.eclipse.jgit.util.SystemReader;
 
 public class MockSystemReader extends SystemReader {
+	private final class MockConfig extends FileBasedConfig {
+		private MockConfig(File cfgLocation, FS fs) {
+			super(cfgLocation, fs);
+		}
+
+		@Override
+		public void load() throws IOException, ConfigInvalidException {
+			// Do nothing
+		}
+
+		@Override
+		public boolean isOutdated() {
+			return false;
+		}
+	}
+
 	final Map<String, String> values = new HashMap<String, String>();
 
 	FileBasedConfig userGitConfig;
 
+	FileBasedConfig systemGitConfig;
+
 	public MockSystemReader() {
 		init(Constants.OS_USER_NAME_KEY);
 		init(Constants.GIT_AUTHOR_NAME_KEY);
 		init(Constants.GIT_AUTHOR_EMAIL_KEY);
 		init(Constants.GIT_COMMITTER_NAME_KEY);
 		init(Constants.GIT_COMMITTER_EMAIL_KEY);
-		userGitConfig = new FileBasedConfig(null, null) {
-			@Override
-			public void load() throws IOException, ConfigInvalidException {
-				// Do nothing
-			}
-
-			@Override
-			public boolean isOutdated() {
-				return false;
-			}
-		};
+		userGitConfig = new MockConfig(null, null);
+		systemGitConfig = new MockConfig(null, null);
 	}
 
 	private void init(final String n) {
@@ -103,11 +114,18 @@ public class MockSystemReader extends SystemReader {
 	}
 
 	@Override
-	public FileBasedConfig openUserConfig(FS fs) {
+	public FileBasedConfig openUserConfig(Config parent, FS fs) {
+		assert parent == null || parent == systemGitConfig;
 		return userGitConfig;
 	}
 
 	@Override
+	public FileBasedConfig openSystemConfig(Config parent, FS fs) {
+		assert parent == null;
+		return systemGitConfig;
+	}
+
+	@Override
 	public String getHostname() {
 		return "fake.host.example.com";
 	}
@@ -121,4 +139,5 @@ public class MockSystemReader extends SystemReader {
 	public int getTimezone(long when) {
 		return TimeZone.getTimeZone("GMT-03:30").getOffset(when) / (60 * 1000);
 	}
+
 }