X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=blobdiff_plain;f=source%2Ffs%2Fdir.cpp;h=066d88bc1fd2c461bae39b5e3700d756f2aaa5b6;hp=f77584708bb20a94d01496da33465dd0ffec40c7;hb=HEAD;hpb=caa878f5426d5d1dbcbe6c3b78656c3618411e7b

diff --git a/source/fs/dir.cpp b/source/fs/dir.cpp
index f775847..0f617e5 100644
--- a/source/fs/dir.cpp
+++ b/source/fs/dir.cpp
@@ -1,8 +1,6 @@
-#include <cstdlib>
-#include <unistd.h>
-#include <dirent.h>
-#include <msp/core/systemerror.h>
-#include <msp/strings/regex.h>
+#include <msp/core/application.h>
+#include <msp/core/environ.h>
+#include <msp/core/except.h>
 #include <msp/strings/utils.h>
 #include "dir.h"
 #include "path.h"
@@ -17,6 +15,15 @@ namespace FS {
 namespace
 {
 
+enum
+{
+#ifdef _WIN32
+	ITEMSEP = ';'
+#else
+	ITEMSEP = ':'
+#endif
+};
+
 /** Helper function to determine the location of the program's executable.
 Caches the last result to cut down filesystem access with repeated calls. */
 const Path &get_bin_dir(const string &argv0)
@@ -27,18 +34,21 @@ const Path &get_bin_dir(const string &argv0)
 	if(!(argv0==last_argv0))
 	{
 		Path exe;
-		if(argv0.find('/')==string::npos)
+		if(argv0.find(DIRSEP)==string::npos)
 		{
-			const char *path = getenv("PATH");
-			vector<string> dirs = split(path, ':');
-			for(vector<string>::const_iterator i=dirs.begin(); i!=dirs.end(); ++i)
-				if(exists(Path(*i)/argv0))
-				{
-					exe = realpath(Path(*i)/argv0);
-					break;
-				}
+			string path = getenv("PATH");
+			if(!path.empty())
+			{
+				for(const string &d: split(path, ITEMSEP))
+					if(exists(Path(d)/argv0))
+					{
+						exe = realpath(Path(d)/argv0);
+						break;
+					}
+			}
 		}
-		else
+
+		if(exe.empty())
 			exe = realpath(argv0);
 
 		last_argv0 = argv0;
@@ -59,10 +69,10 @@ not_a_directory::not_a_directory(const Path &p):
 void mkpath(const Path &path, int mode)
 {
 	Path p;
-	for(Path::Iterator i=path.begin(); i!=path.end(); ++i)
+	for(const string &c: path)
 	{
-		p /= *i;
-#ifdef WIN32
+		p /= c;
+#ifdef _WIN32
 		if(p.size()==1 && p.is_absolute())
 			continue;
 #endif
@@ -79,10 +89,9 @@ void mkpath(const Path &path, int mode)
 
 void rmpath(const Path &path)
 {
-	list<string> files = list_files(path);
-	for(list<string>::iterator i=files.begin(); i!=files.end(); ++i)
+	for(const string &f: list_files(path))
 	{
-		Path p = path / *i;
+		Path p = path/f;
 		if(is_dir(p))
 			rmpath(p);
 		else
@@ -92,41 +101,17 @@ void rmpath(const Path &path)
 	rmdir(path);
 }
 
-list<string> list_files(const Path &path)
+vector<string> list_files(const Path &path)
 {
 	return list_filtered(path, string());
 }
 
-list<string> list_filtered(const Path &path, const string &filter)
-{
-	Regex r_filter(filter);
-
-	list<string> result;
-	DIR *dir = opendir(path.str().c_str());
-	if(dir)
-	{
-		while(dirent *de = readdir(dir))
-		{
-			const char *fn = de->d_name;
-			if(fn[0]=='.' && (fn[1]==0 || (fn[1]=='.' && fn[2]==0))) 
-				continue;
-			if(r_filter.match(fn))
-				result.push_back(fn);
-		}
-		closedir(dir);
-	}
-
-	return result;
-}
-
-Path getcwd()
+Path get_sys_conf_dir()
 {
-	char buf[1024];
-	return ::getcwd(buf, sizeof(buf));
-}
+	const char *argv0 = Application::get_argv0();
+	if(!argv0)
+		throw invalid_state("no startup command");
 
-Path get_sys_conf_dir(const string &argv0)
-{
 	Path dir = get_bin_dir(argv0);
 
 	if(dir[-1]=="bin" || dir[-1]=="sbin")
@@ -140,32 +125,53 @@ Path get_sys_conf_dir(const string &argv0)
 		return dir;
 }
 
-Path get_sys_data_dir(const string &argv0, const string &appname)
+Path get_sys_data_dir()
 {
+	const char *argv0 = Application::get_argv0();
+	if(!argv0)
+		throw invalid_state("no startup command");
+
 	Path dir = get_bin_dir(argv0);
 
 	if(dir[-1]=="bin" || dir[-1]=="sbin")
-		return dir/".."/"share"/appname;
+		return dir/".."/"share"/Application::get_name();
 	else if(dir[-1]=="MacOS")
 		return dir/".."/"Resources";
 	else
 		return dir;
 }
 
-Path get_sys_lib_dir(const string &argv0, const string &appname)
+Path get_sys_lib_dir()
 {
+	const char *argv0 = Application::get_argv0();
+	if(!argv0)
+		throw invalid_state("no startup command");
+
 	Path dir = get_bin_dir(argv0);
 
 	if(dir[-1]=="bin" || dir[-1]=="sbin")
-		return dir/".."/"lib"/appname;
+		return dir/".."/"lib"/Application::get_name();
 	else
 		return dir;
 }
 
-void chdir(const Path &path)
+Path path_lookup(const string &name, const vector<Path> &paths)
+{
+	for(const Path &p: paths)
+	{
+		Path full = p/name;
+		if(exists(full))
+			return realpath(full);
+	}
+
+	return Path();
+}
+
+Path path_lookup(const string &name)
 {
-	if(::chdir(path.str().c_str())==-1)
-		throw system_error("chdir");
+	string path = getenv("PATH");
+	vector<string> dirs = split(path, ITEMSEP);
+	return path_lookup(name, vector<Path>(dirs.begin(), dirs.end()));
 }
 
 } // namespace FS