#include <cstdlib>
-#include <cerrno>
+#include <unistd.h>
#include <dirent.h>
-#include <sys/stat.h>
-#ifdef WIN32
-#include <shlobj.h>
-#endif
-#include <msp/core/except.h>
+#include <msp/core/application.h>
+#include <msp/core/systemerror.h>
#include <msp/strings/regex.h>
#include <msp/strings/utils.h>
#include "dir.h"
namespace
{
-/**
-Helper function to determine the location of the program's executable. Caches
-the last result to cut down filesystem access with repeated calls.
-*/
+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)
{
static string last_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, ':');
+ vector<string> dirs = split(path, ITEMSEP);
for(vector<string>::const_iterator i=dirs.begin(); i!=dirs.end(); ++i)
if(exists(Path(*i)/argv0))
{
break;
}
}
- else
+
+ if(exe.empty())
exe = realpath(argv0);
last_argv0 = argv0;
}
-void mkdir(const Path &path, int mode)
-{
- int err;
-#ifdef WIN32
- // The win32 version of this function doesn't take the mode argument. Go figure.
- (void)mode;
- err = ::mkdir(path.str().c_str());
-#else
- err = ::mkdir(path.str().c_str(), mode);
-#endif
- if(err==-1)
- throw SystemError("mkdir failed", errno);
-}
+not_a_directory::not_a_directory(const Path &p):
+ runtime_error(p.str())
+{ }
+
void mkpath(const Path &path, int mode)
{
for(Path::Iterator i=path.begin(); i!=path.end(); ++i)
{
p /= *i;
-#ifdef WIN32
+#ifdef _WIN32
if(p.size()==1 && p.is_absolute())
continue;
#endif
- struct stat st;
- int err = stat(p, st);
- if(err==0)
+ if(FS::Stat st = stat(p))
{
- if(!S_ISDIR(st.st_mode))
- throw Exception("A component exists and is not a directory");
+ if(!st.is_directory())
+ throw not_a_directory(p);
continue;
}
- else if(errno!=ENOENT)
- throw SystemError("stat failed", errno);
else
mkdir(p, mode);
}
}
-void rmdir(const Path &path)
-{
- if(::rmdir(path.str().c_str())==-1)
- throw SystemError("rmdir failed", errno);
-}
-
-void rmdirs(const Path &path)
+void rmpath(const Path &path)
{
list<string> files = list_files(path);
for(list<string>::iterator i=files.begin(); i!=files.end(); ++i)
{
Path p = path / *i;
- struct stat st = stat(p.str().c_str());
- if(S_ISDIR(st.st_mode))
- rmdirs(p);
+ if(is_dir(p))
+ rmpath(p);
else
unlink(p);
}
list<string> result;
DIR *dir = opendir(path.str().c_str());
- if(dir)
+ if(!dir)
+ throw system_error("opendir");
+
+ while(dirent *de = readdir(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);
+ 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()
-{
- char buf[1024];
- return ::getcwd(buf, sizeof(buf));
-}
-
-Path get_home_dir()
+Path get_sys_conf_dir(const string &)
{
-#ifdef WIN32
- char home[MAX_PATH];
- if(SHGetFolderPath(0, CSIDL_PERSONAL, 0, 0, home)==S_OK)
- return home;
-#else
- const char *home = getenv("HOME");
- if(home)
- return home;
-#endif
- return ".";
+ return get_sys_conf_dir();
}
-Path get_user_data_dir(const string &appname)
+Path get_sys_conf_dir()
{
-#ifdef WIN32
- char datadir[MAX_PATH];
- if(SHGetFolderPath(0, CSIDL_LOCAL_APPDATA, 0, 0, datadir)==S_OK)
- return Path(datadir)/appname;
- return ".";
-#else
- return get_home_dir()/("."+appname);
-#endif
-}
+ const char *argv0 = Application::get_argv0();
+ if(!argv0)
+ throw logic_error("no startup command");
-Path get_sys_conf_dir(const string &argv0)
-{
Path dir = get_bin_dir(argv0);
if(dir[-1]=="bin" || dir[-1]=="sbin")
return dir;
}
-Path get_sys_data_dir(const string &argv0, const string &appname)
+Path get_sys_data_dir(const string &, const string &)
{
+ return get_sys_data_dir();
+}
+
+Path get_sys_data_dir()
+{
+ const char *argv0 = Application::get_argv0();
+ if(!argv0)
+ throw logic_error("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 string &, const string &)
{
+ return get_sys_lib_dir();
+}
+
+Path get_sys_lib_dir()
+{
+ const char *argv0 = Application::get_argv0();
+ if(!argv0)
+ throw logic_error("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 list<Path> &paths)
+{
+ for(list<Path>::const_iterator i=paths.begin(); i!=paths.end(); ++i)
+ {
+ Path full = *i/name;
+ if(exists(full))
+ return realpath(full);
+ }
+
+ return Path();
+}
+
+Path path_lookup(const string &name)
{
- if(::chdir(path.str().c_str())==-1)
- throw SystemError("chdir failed", errno);
+ const char *path = getenv("PATH");
+ vector<string> dirs = split(path, ITEMSEP);
+ return path_lookup(name, list<Path>(dirs.begin(), dirs.end()));
}
} // namespace FS
projects / libs / core.git / blobdiff