fs/Path: add method IsAbsolute()

src/ConfigPath.cxx

@@ -118,7 +118,7 @@ ParsePath(const char *path, Error &error)
 			return Path::Null();
 
 		return Path::Build(home, path2);
-	} else if (!g_path_is_absolute(path)) {
+	} else if (!Path::IsAbsoluteUTF8(path)) {
 		error.Format(path_domain,
 			     "not an absolute path: %s", path);
 		return Path::Null();

src/DecoderThread.cxx

@@ -153,7 +153,7 @@ decoder_file_decode(const struct decoder_plugin *plugin,
 	assert(decoder->stream_tag == NULL);
 	assert(decoder->decoder_tag == NULL);
 	assert(path != NULL);
-	assert(g_path_is_absolute(path));
+	assert(Path::IsAbsoluteFS(path));
 	assert(decoder->dc->state == DecoderState::START);
 
 	FormatDebug(decoder_thread_domain, "probing plugin %s", plugin->name);

src/PlaylistFile.cxx

@@ -246,7 +246,7 @@ LoadPlaylistFile(const char *utf8path, Error &error)
 		if (!uri_has_scheme(s)) {
 			uri_utf8 = map_fs_to_utf8(s);
 			if (uri_utf8.empty()) {
-				if (g_path_is_absolute(s)) {
+				if (Path::IsAbsoluteFS(s)) {
 					uri_utf8 = Path::ToUTF8(s);
 					if (uri_utf8.empty())
 						continue;

src/PlaylistSave.cxx

@@ -56,7 +56,7 @@ void
 playlist_print_uri(FILE *file, const char *uri)
 {
 	Path path = playlist_saveAbsolutePaths && !uri_has_scheme(uri) &&
-		!g_path_is_absolute(uri)
+		!Path::IsAbsoluteUTF8(uri)
 		? map_uri_fs(uri)
 		: Path::FromUTF8(uri);
 

src/PlaylistSong.cxx

@@ -98,7 +98,7 @@ playlist_check_load_song(const Song *song, const char *uri, bool secure)
 
 	if (uri_has_scheme(uri)) {
 		dest = Song::NewRemote(uri);
-	} else if (g_path_is_absolute(uri) && secure) {
+	} else if (Path::IsAbsoluteUTF8(uri) && secure) {
 		dest = Song::LoadFile(uri, nullptr);
 		if (dest == nullptr)
 			return nullptr;
@@ -147,7 +147,7 @@ playlist_check_translate_song(Song *song, const char *base_uri,
 		   functions */
 		base_uri = nullptr;
 
-	if (g_path_is_absolute(uri)) {
+	if (Path::IsAbsoluteUTF8(uri)) {
 		/* XXX fs_charset vs utf8? */
 		const char *suffix = map_to_relative_path(uri);
 		assert(suffix != nullptr);

src/QueueSave.cxx

@@ -28,6 +28,7 @@
 #include "TextFile.hxx"
 #include "util/UriUtil.hxx"
 #include "util/Error.hxx"
+#include "fs/Path.hxx"
 #include "Log.hxx"
 
 #include <glib.h>
@@ -92,7 +93,7 @@ queue_load_song(TextFile &file, const char *line, queue *queue)
 
 	if (g_str_has_prefix(line, SONG_BEGIN)) {
 		const char *uri = line + sizeof(SONG_BEGIN) - 1;
-		if (!uri_has_scheme(uri) && !g_path_is_absolute(uri))
+		if (!uri_has_scheme(uri) && !Path::IsAbsoluteUTF8(uri))
 			return;
 
 		Error error;

src/SongUpdate.cxx

@@ -47,7 +47,7 @@ Song::LoadFile(const char *path_utf8, Directory *parent)
 	Song *song;
 	bool ret;
 
-	assert((parent == NULL) == g_path_is_absolute(path_utf8));
+	assert((parent == NULL) == Path::IsAbsoluteUTF8(path_utf8));
 	assert(!uri_has_scheme(path_utf8));
 	assert(strchr(path_utf8, '\n') == NULL);
 

src/UpdateWalk.cxx

@@ -295,7 +295,7 @@ skip_symlink(const Directory *directory, const char *utf8_name)
 
 	const char *target_str = target.c_str();
 
-	if (g_path_is_absolute(target_str)) {
+	if (Path::IsAbsoluteFS(target_str)) {
 		/* if the symlink points to an absolute path, see if
 		   that path is inside the music directory */
 		const char *relative = map_to_relative_path(target_str);

src/fs/Path.hxx

@@ -23,6 +23,10 @@
 #include "check.h"
 #include "gcc.h"
 
+#ifdef WIN32
+#include <glib.h>
+#endif
+
 #include <algorithm>
 #include <string>
 
@@ -261,6 +265,33 @@ public:
 #endif
 			ch == SEPARATOR_UTF8;
 	}
+
+	gcc_pure
+	static bool IsAbsoluteFS(const_pointer p) {
+		assert(p != nullptr);
+
+#ifdef WIN32
+		return g_path_is_absolute(p);
+#else
+		return IsSeparatorFS(*p);
+#endif
+	}
+
+	gcc_pure
+	static bool IsAbsoluteUTF8(const char *p) {
+		assert(p != nullptr);
+
+#ifdef WIN32
+		return g_path_is_absolute(p);
+#else
+		return IsSeparatorUTF8(*p);
+#endif
+	}
+
+	gcc_pure
+	bool IsAbsolute() {
+		return IsAbsoluteFS(c_str());
+	}
 };
 
 #endif

src/input/ArchiveInputPlugin.cxx

@@ -26,6 +26,7 @@
 #include "InputPlugin.hxx"
 #include "util/Error.hxx"
 #include "util/Domain.hxx"
+#include "fs/Path.hxx"
 #include "Log.hxx"
 
 #include <glib.h>
@@ -49,7 +50,7 @@ input_archive_open(const char *pathname,
 	char *archive, *filename, *suffix, *pname;
 	struct input_stream *is;
 
-	if (!g_path_is_absolute(pathname))
+	if (!Path::IsAbsoluteFS(pathname))
 		return NULL;
 
 	pname = g_strdup(pathname);

src/input/FileInputPlugin.cxx

@@ -24,6 +24,7 @@
 #include "InputPlugin.hxx"
 #include "util/Error.hxx"
 #include "util/Domain.hxx"
+#include "fs/Path.hxx"
 #include "system/fd_util.h"
 #include "open.h"
 
@@ -62,7 +63,7 @@ input_file_open(const char *filename,
 	int fd, ret;
 	struct stat st;
 
-	if (!g_path_is_absolute(filename))
+	if (!Path::IsAbsoluteFS(filename))
 		return nullptr;
 
 	fd = open_cloexec(filename, O_RDONLY|O_BINARY, 0);

src/playlist/EmbeddedCuePlaylistPlugin.cxx

@@ -34,6 +34,7 @@
 #include "Song.hxx"
 #include "TagFile.hxx"
 #include "cue/CueParser.hxx"
+#include "fs/Path.hxx"
 
 #include <glib.h>
 #include <assert.h>
@@ -95,7 +96,7 @@ embcue_playlist_open_uri(const char *uri,
 			 gcc_unused Mutex &mutex,
 			 gcc_unused Cond &cond)
 {
-	if (!g_path_is_absolute(uri))
+	if (!Path::IsAbsoluteUTF8(uri))
 		/* only local files supported */
 		return NULL;