new feature selective sync

removed system wide config file
hardcoded sane default config
updated README

Makefile

@@ -1,7 +1,6 @@
 DC = dmd
 DFLAGS = -ofonedrive -L-lcurl -L-lsqlite3 -L-ldl
 DESTDIR = /usr/local/bin
-CONFDIR = /usr/local/etc
 
 SOURCES = \
 	src/config.d \
@@ -27,12 +26,10 @@ unittest: $(SOURCES)
 clean:
 	rm -f onedrive.o onedrive
 
-install: onedrive onedrive.conf
+install: onedrive onedrive.service
 	install onedrive $(DESTDIR)/onedrive
-	install -m 644 onedrive.conf $(CONFDIR)/onedrive.conf
 	install -m 644 onedrive.service /usr/lib/systemd/user
 
 uninstall:
 	rm -f $(DESTDIR)/onedrive
-	rm -f $(CONFDIR)/onedrive.conf
 	rm -f /usr/lib/systemd/user/onedrive.service

README.md

@@ -37,21 +37,30 @@ sudo make install
 You should copy the default config file into your home directory before making changes:
 ```
 mkdir -p ~/.config/onedrive
-cp /usr/local/etc/onedrive.conf ~/.config/onedrive/config
+cp ./config ~/.config/onedrive/config
 ```
 
 Available options:
-* `client_id`: application identifier necessary for the [authentication][2]
 * `sync_dir`: directory where the files will be synced
-* `skip_file`: any files that match this pattern will be skipped during sync
-* `skip_dir`: any directories that match this pattern will be skipped during sync
+* `skip_file`: any files or directories that match this pattern will be skipped during sync
 
 Pattern are case insensitive.
-`*` and `?` [wildcards characters][3] are supported.
+`*` and `?` [wildcards characters][1] are supported.
 Use `|` to separate multiple patterns.
 
-[2]: https://dev.onedrive.com/auth/msa_oauth.htm
-[3]: https://technet.microsoft.com/en-us/library/bb490639.aspx
+[1]: https://technet.microsoft.com/en-us/library/bb490639.aspx
+
+### Selective sync
+Selective sync allows you to sync only specific files and directories.
+To enable selective sync create a file named `sync_list` in `~/.config/onedrive`.
+Each line represents a path to a file or directory relative from your `sync_dir`.
+```
+$ cat ~/.config/onedrive/sync_list
+Backup
+Documents/report.odt
+Work/ProjectX
+notes.txt
+```
 
 ### First run
 The first time you run the program you will be asked to sign in. The procedure requires a web browser.
@@ -72,16 +81,17 @@ journalctl --user-unit onedrive -f
 ```
 onedrive [OPTION]...
 
-no option    Sync and exit.
 -m --monitor Keep monitoring for local and remote changes.
-	--resync Forget the last saved state, perform a full sync.
+    --resync Forget the last saved state, perform a full sync.
+    --logout Logout the current user.
+   --confdir Set the directory to use to store the configuration files.
 -v --verbose Print more details, useful for debugging.
 -h    --help This help information.
 ```
 
 ### Notes:
-* After changing the filters (`skip_file` or `skip_dir` in your configs) you must execute `onedrive --resync`
-* [Windows naming conventions][4] apply
+* After changing `skip_file` in your configs or the sync list, you must execute `onedrive --resync`
+* [Windows naming conventions][2] apply
 * Use `make debug` to generate an executable for debugging
 
-[4]: https://msdn.microsoft.com/en-us/library/aa365247
+[2]: https://msdn.microsoft.com/en-us/library/aa365247

config

@@ -0,0 +1,4 @@
+# Directory where the files will be synced
+sync_dir = "~/OneDrive"
+# Skip files and directories that match this pattern
+skip_file = ".*|~*"

onedrive.conf

@@ -1,4 +0,0 @@
-client_id = "22c49a0d-d21c-4792-aed1-8f163c982546"
-sync_dir = "~/OneDrive"
-skip_file = ".*|~*"
-skip_dir = ".*"

src/config.d

@@ -1,4 +1,4 @@
-import std.file, std.regex, std.stdio;
+import std.file, std.string, std.regex, std.stdio;
 static import log;
 
 final class Config
@@ -7,6 +7,7 @@ final class Config
 	public string statusTokenFilePath;
 	public string databaseFilePath;
 	public string uploadStateFilePath;
+	public string syncListFilePath;
 
 	private string userConfigFilePath;
 	// hashmap for the values found in the user config file
@@ -19,15 +20,16 @@ final class Config
 		databaseFilePath = configDirName ~ "/items.sqlite3";
 		uploadStateFilePath = configDirName ~ "/resume_upload";
 		userConfigFilePath = configDirName ~ "/config";
+		syncListFilePath = configDirName ~ "/sync_list";
 	}
 
 	void init()
 	{
-		bool found = false;
-		found |= load("/etc/onedrive.conf");
-		found |= load("/usr/local/etc/onedrive.conf");
-		found |= load(userConfigFilePath);
-		if (!found) throw new Exception("No config file found");
+		setValue("sync_dir", "~/OneDrive");
+		setValue("skip_file", ".*|~*");
+		if (!load(userConfigFilePath)) {
+			log.vlog("No config file found, using defaults");
+		}
 	}
 
 	string getValue(string key)
@@ -50,12 +52,19 @@ final class Config
 		}
 	}
 
+	void setValue(string key, string value)
+	{
+		values[key] = value;
+	}
+
 	private bool load(string filename)
 	{
 		scope(failure) return false;
 		auto file = File(filename, "r");
-		auto r = regex(`^\s*(\w+)\s*=\s*"(.*)"\s*$`);
+		auto r = regex(`^(\w+)\s*=\s*"(.*)"\s*$`);
 		foreach (line; file.byLine()) {
+			line = stripLeft(line);
+			if (line.length == 0 || line[0] == ';' || line[0] == '#') continue;
 			auto c = line.matchFirst(r);
 			if (!c.empty) {
 				c.popFront(); // skip the whole match
@@ -73,7 +82,7 @@ final class Config
 unittest
 {
 	auto cfg = new Config("");
-	cfg.load("onedrive.conf");
+	cfg.load("config");
 	assert(cfg.getValue("sync_dir") == "~/OneDrive");
 	assert(cfg.getValue("empty", "default") == "default");
 }

src/itemdb.d

@@ -114,7 +114,8 @@ final class ItemDatabase
 
 	bool selectByPath(const(char)[] path, out Item item)
 	{
-		path = "root/" ~ path.chompPrefix("."); // HACK
+		// prefix with the root dir
+		path = "root/" ~ path.chompPrefix(".");
 
 		// initialize the search
 		string[2][] candidates; // [id, parentId]
@@ -240,8 +241,7 @@ final class ItemDatabase
 				else path = r.front[0].idup;
 			} else {
 				// root
-				if (path) path = "./" ~ path;
-				else path = ".";
+				if (!path) path = ".";
 				break;
 			}
 			id = r.front[1].dup;

src/sync.d

@@ -51,8 +51,10 @@ final class SyncEngine
 	private Config cfg;
 	private OneDriveApi onedrive;
 	private ItemDatabase itemdb;
-	private Regex!char skipDir, skipFile;
 	private UploadSession session;
+	private Regex!char skipFile;
+	// list of paths to sync
+	private string[] selectiveSyncPaths;
 	// token representing the last status correctly synced
 	private string statusToken;
 	// list of items to skip while applying the changes
@@ -66,9 +68,19 @@ final class SyncEngine
 		this.cfg = cfg;
 		this.onedrive = onedrive;
 		this.itemdb = itemdb;
-		skipDir = wild2regex(cfg.getValue("skip_dir"));
 		skipFile = wild2regex(cfg.getValue("skip_file"));
 		session = UploadSession(onedrive, cfg.uploadStateFilePath);
+
+		// read the selective sync list
+		if (exists(cfg.syncListFilePath)) {
+			import std.array;
+			auto file = File(cfg.syncListFilePath);
+			selectiveSyncPaths = file
+				.byLine()
+				.map!(a => buildNormalizedPath(a))
+				.filter!(a => a.length > 0)
+				.array;
+		}
 	}
 
 	void init()
@@ -146,13 +158,19 @@ final class SyncEngine
 			parentId = null;
 		}
 
+		log.vlog(id, " ", name);
+
 		// skip unwanted items early
 		if (skippedItems.find(parentId).length != 0) {
+			log.vlog("Filtered out");
+			skippedItems ~= id;
+			return;
+		}
+		if (!name.matchFirst(skipFile).empty) {
+			log.vlog("Filtered out");
 			skippedItems ~= id;
 			return;
 		}
-
-		log.vlog(id, " ", name);
 
 		// rename the local item if it is unsynced and there is a new version of it
 		Item oldItem;
@@ -178,22 +196,19 @@ final class SyncEngine
 		string path = ".";
 		if (parentId) {
 			path = itemdb.computePath(parentId) ~ "/" ~ name;
+			// selective sync
+			if (isPathExcluded(path, selectiveSyncPaths)) {
+				log.vlog("Filtered out: ", path);
+				skippedItems ~= id;
+				return;
+			}
 		}
 
 		ItemType type;
 		if (isItemFile(item)) {
 			type = ItemType.file;
-			if (!path.matchFirst(skipFile).empty) {
-				log.vlog("Filtered out");
-				return;
-			}
 		} else if (isItemFolder(item)) {
 			type = ItemType.dir;
-			if (!path.matchFirst(skipDir).empty) {
-				log.vlog("Filtered out");
-				skippedItems ~= id;
-				return;
-			}
 		} else {
 			log.vlog("The item is neither a file nor a directory, skipping");
 			skippedItems ~= id;
@@ -365,20 +380,23 @@ final class SyncEngine
 	private void uploadDifferences(Item item)
 	{
 		log.vlog(item.id, " ", item.name);
+
+		// skip filtered items
+		if (!item.name.matchFirst(skipFile).empty) {
+			log.vlog("Filtered out");
+			return;
+		}
 		string path = itemdb.computePath(item.id);
+		if (isPathExcluded(path, selectiveSyncPaths)) {
+			log.vlog("Filtered out: ", path);
+			return;
+		}
+
 		final switch (item.type) {
 		case ItemType.dir:
-			if (!path.matchFirst(skipDir).empty) {
-				log.vlog("Filtered out");
-				break;
-			}
 			uploadDirDifferences(item, path);
 			break;
 		case ItemType.file:
-			if (!path.matchFirst(skipFile).empty) {
-				log.vlog("Filtered out");
-				break;
-			}
 			uploadFileDifferences(item, path);
 			break;
 		}
@@ -448,26 +466,33 @@ final class SyncEngine
 
 	private void uploadNewItems(string path)
 	{
+		// skip unexisting symbolic links
 		if (isSymlink(path) && !exists(readLink(path))) {
 			return;
 		}
+
+		// skip filtered items
+		if (!baseName(path).matchFirst(skipFile).empty) {
+			return;
+		}
+		if (isPathExcluded(path, selectiveSyncPaths)) {
+			return;
+		}
+
 		if (isDir(path)) {
-			if (path.matchFirst(skipDir).empty) {
-				Item item;
-				if (!itemdb.selectByPath(path, item)) {
-					uploadCreateDir(path);
-				}
-				auto entries = dirEntries(path, SpanMode.shallow, false);
-				foreach (DirEntry entry; entries) {
-					uploadNewItems(entry.name);
-				}
+			Item item;
+			if (!itemdb.selectByPath(path, item)) {
+				uploadCreateDir(path);
+			}
+			// recursively traverse children
+			auto entries = dirEntries(path, SpanMode.shallow, false);
+			foreach (DirEntry entry; entries) {
+				uploadNewItems(entry.name);
 			}
 		} else {
-			if (path.matchFirst(skipFile).empty) {
-				Item item;
-				if (!itemdb.selectByPath(path, item)) {
-					uploadNewFile(path);
-				}
+			Item item;
+			if (!itemdb.selectByPath(path, item)) {
+				uploadNewFile(path);
 			}
 		}
 	}

src/util.d

@@ -1,3 +1,4 @@
+import std.algorithm;
 import std.conv;
 import std.digest.crc;
 import std.file;
@@ -55,7 +56,7 @@ Regex!char wild2regex(const(char)[] pattern)
 {
 	string str;
 	str.reserve(pattern.length + 2);
-	str ~= "/";
+	str ~= "^";
 	foreach (c; pattern) {
 		switch (c) {
 		case '*':
@@ -68,7 +69,7 @@ Regex!char wild2regex(const(char)[] pattern)
 			str ~= "[^/]";
 			break;
 		case '|':
-			str ~= "$|/";
+			str ~= "$|^";
 			break;
 		default:
 			str ~= c;
@@ -98,9 +99,32 @@ bool multiGlobMatch(const(char)[] path, const(char)[] pattern)
 	return false;
 }
 
+// test if the given path is not included in the allowed paths
+// if there are no allowed paths always return false
+bool isPathExcluded(string path, string[] allowedPaths)
+{
+	// always allow the root
+	if (path == ".") return false;
+	// if there are no allowed paths always return false
+	if (allowedPaths.empty) return false;
+
+	path = buildNormalizedPath(path);
+	foreach (allowed; allowedPaths) {
+		auto comm = commonPrefix(path, allowed);
+		if (comm.length == path.length || comm.length == allowed.length) {
+			return false;
+		}
+	}
+	return true;
+}
+
 unittest
 {
 	assert(multiGlobMatch(".hidden", ".*"));
 	assert(multiGlobMatch(".hidden", "file|.*"));
 	assert(!multiGlobMatch("foo.bar", "foo|bar"));
+	assert(isPathExcluded("Documents2", ["Documents"]));
+	assert(isPathExcluded("Hello/World", ["Hello/John"]));
+	assert(!isPathExcluded("Documents", ["Documents"]));
+	assert(!isPathExcluded("Documents/a.txt", ["Documents"]));
 }