Add uploadOnly flag and add username to logfile name

* Add specific uploadOnly flag so that the onedrive client only uploads
data from the local directory and does not download changes from
OneDrive
* Change the logfile name to include the username running the onedrive
client

src/log.d

@@ -1,6 +1,14 @@
 import std.stdio;
 import std.file;
 import std.datetime;
+import core.sys.posix.pwd, core.sys.posix.unistd, core.stdc.string : strlen;
+import std.algorithm : splitter;
+
+// shared string variable for username
+string username;
+static this() {
+	username = getUserName();
+}
 
 // enable verbose logging
 bool verbose;
@@ -9,12 +17,7 @@ void log(T...)(T args)
 {
 	writeln(args);
 	// Write to log file
-	string logFileName = "/var/log/onedrive/onedrive.log";
-	auto currentTime = Clock.currTime();
-	auto timeString = currentTime.toString();
-	File logFile = File(logFileName, "a");
-	logFile.writeln(timeString, " ", args);
-	logFile.close();
+	logfileWriteLine(args);
 }
 
 void vlog(T...)(T args)
@@ -22,12 +25,7 @@ void vlog(T...)(T args)
 	if (verbose) {
 		writeln(args);
 		// Write to log file
-		string logFileName = "/var/log/onedrive/onedrive.log";
-		auto currentTime = Clock.currTime();
-		auto timeString = currentTime.toString();
-		File logFile = File(logFileName, "a");
-		logFile.writeln(timeString, " ", args);
-		logFile.close();
+		logfileWriteLine(args);
 	}
 }
 
@@ -35,10 +33,28 @@ void error(T...)(T args)
 {
 	stderr.writeln(args);
 	// Write to log file
-	string logFileName = "/var/log/onedrive/onedrive.log";
+	logfileWriteLine(args);
+}
+
+private void logfileWriteLine(T...)(T args)
+{
+	// Write to log file
+	string logFileName = "/var/log/onedrive/" ~ .username ~ ".onedrive.log";
 	auto currentTime = Clock.currTime();
 	auto timeString = currentTime.toString();
 	File logFile = File(logFileName, "a");
 	logFile.writeln(timeString, " ", args);
 	logFile.close();
+}
+
+private string getUserName()
+{
+	auto pw = getpwuid(getuid);
+	auto uinfo = pw.pw_gecos[0 .. strlen(pw.pw_gecos)].splitter(',');
+	if (!uinfo.empty && uinfo.front.length){
+		return uinfo.front.idup;
+	} else {
+		// Unknown user?
+		return "unknown";
+	}
 }

src/main.d

@@ -4,13 +4,12 @@ import std.getopt, std.file, std.path, std.process, std.stdio;
 import config, itemdb, monitor, onedrive, selective, sync, util;
 static import log;
 
-// only download remote changes
-bool downloadOnly;
-
 int main(string[] args)
 {
 	// configuration directory
 	string configDirName = environment.get("XDG_CONFIG_HOME", "~/.config") ~ "/onedrive";
+	// only download remote changes
+	bool downloadOnly;
 	// override the sync directory
 	string syncDirName;
 	// enable monitor mode
@@ -44,6 +43,8 @@ int main(string[] args)
 	bool synchronize;
 	// Local sync - Upload local changes first before downloading changes from OneDrive
 	bool localFirst;
+	// Upload Only
+	bool uploadOnly;
 		
 	try {
 		auto opt = getopt(
@@ -65,6 +66,7 @@ int main(string[] args)
 			"source-directory", "Source directory to rename or move on OneDrive - no sync will be performed.", &sourceDirectory,
 			"syncdir", "Set the directory used to sync the files that are synced", &syncDirName,
 			"synchronize", "Perform a synchronization", &synchronize,
+			"upload-only", "Only upload to OneDrive, do not sync changes from OneDrive locally", &uploadOnly,
 			"verbose|v", "Print more details, useful for debugging", &log.verbose,
 			"version", "Print the version and exit", &printVersion
 		);
@@ -190,7 +192,7 @@ int main(string[] args)
 				}
 						
 				// Perform the sync
-				performSync(sync, singleDirectory, localFirst);
+				performSync(sync, singleDirectory, downloadOnly, localFirst, uploadOnly);
 			}
 		}
 			
@@ -240,7 +242,7 @@ int main(string[] args)
 					lastCheckTime = currTime;
 					online = testNetwork();
 					if (online) {
-						performSync(sync, singleDirectory, localFirst);
+						performSync(sync, singleDirectory, downloadOnly, localFirst, uploadOnly);
 						if (!downloadOnly) {
 							// discard all events that may have been generated by the sync
 							m.update(false);
@@ -262,7 +264,7 @@ int main(string[] args)
 }
 
 // try to synchronize the folder three times
-void performSync(SyncEngine sync, string singleDirectory, bool localFirst)
+void performSync(SyncEngine sync, string singleDirectory, bool downloadOnly, bool localFirst, bool uploadOnly)
 {
 	int count;
 	string remotePath = "/";
@@ -281,21 +283,31 @@ void performSync(SyncEngine sync, string singleDirectory, bool localFirst)
 				// we were requested to sync a single directory
 				log.vlog("Syncing changes from this selected path: ", singleDirectory);
 				if (localFirst) {
-					log.vlog("Syncing changes from selected local path first before downloading changes from OneDrive ...");
-					sync.scanForDifferences(localPath);
-					sync.applyDifferencesSingleDirectory(remotePath);
+					if (uploadOnly){
+						log.vlog("Syncing changes from selected local path only - NOT syncing data changes from OneDrive ...");
+						sync.scanForDifferences(localPath);
+					} else {
+						log.vlog("Syncing changes from selected local path first before downloading changes from OneDrive ...");
+						sync.scanForDifferences(localPath);
+						sync.applyDifferencesSingleDirectory(remotePath);
+					}
 				} else {
 					log.vlog("Syncing changes from selected OneDrive path first before uploading local changes ...");
 					sync.applyDifferencesSingleDirectory(remotePath);
 					sync.scanForDifferences(localPath);
 				}
 			} else {
-				// original onedrive client logic below
-				sync.applyDifferences();
-				if (!downloadOnly) {
-					sync.scanForDifferences(localPath);
-					// ensure that the current state is updated
+				if (!uploadOnly){
+					// original onedrive client logic below
 					sync.applyDifferences();
+					if (!downloadOnly) {
+						sync.scanForDifferences(localPath);
+						// ensure that the current state is updated
+						sync.applyDifferences();
+					}
+				} else {
+					// upload only
+					sync.scanForDifferences(localPath);
 				}
 			}
 			count = -1;