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#include <unistd.h>
#include <sys/stat.h>
#include <cstring>
#include <climits>
#include <cerrno>
#include <glibmm/miscutils.h>
#include "pbd/compose.h"
#include "pbd/error.h"
#include "ardour/filename_extensions.h"
#include "ardour/utils.h"
#include "i18n.h"
using namespace std;
using namespace PBD;
namespace ARDOUR {
int
find_session (string str, string& path, string& snapshot, bool& isnew)
{
struct stat statbuf;
char buf[PATH_MAX+1];
isnew = false;
if (!realpath (str.c_str(), buf) && (errno != ENOENT && errno != ENOTDIR)) {
error << string_compose (_("Could not resolve path: %1 (%2)"), buf, strerror(errno)) << endmsg;
return -1;
}
str = buf;
/* check to see if it exists, and what it is */
if (stat (str.c_str(), &statbuf)) {
if (errno == ENOENT) {
isnew = true;
} else {
error << string_compose (_("cannot check session path %1 (%2)"), str, strerror (errno))
<< endmsg;
return -1;
}
}
if (!isnew) {
/* it exists, so it must either be the name
of the directory, or the name of the statefile
within it.
*/
if (S_ISDIR (statbuf.st_mode)) {
string::size_type slash = str.find_last_of (G_DIR_SEPARATOR);
if (slash == string::npos) {
/* a subdirectory of cwd, so statefile should be ... */
string tmp = Glib::build_filename (str, str+statefile_suffix);
/* is it there ? */
if (stat (tmp.c_str(), &statbuf)) {
error << string_compose (_("cannot check statefile %1 (%2)"), tmp, strerror (errno))
<< endmsg;
return -1;
}
path = str;
snapshot = str;
} else {
/* some directory someplace in the filesystem.
the snapshot name is the directory name
itself.
*/
path = str;
snapshot = str.substr (slash+1);
}
} else if (S_ISREG (statbuf.st_mode)) {
string::size_type slash = str.find_last_of (G_DIR_SEPARATOR);
string::size_type suffix;
/* remove the suffix */
if (slash != string::npos) {
snapshot = str.substr (slash+1);
} else {
snapshot = str;
}
suffix = snapshot.find (statefile_suffix);
if (suffix == string::npos) {
error << string_compose (_("%1 is not a snapshot file"), str) << endmsg;
return -1;
}
/* remove suffix */
snapshot = snapshot.substr (0, suffix);
if (slash == string::npos) {
/* we must be in the directory where the
statefile lives. get it using cwd().
*/
char cwd[PATH_MAX+1];
if (getcwd (cwd, sizeof (cwd)) == 0) {
error << string_compose (_("cannot determine current working directory (%1)"), strerror (errno))
<< endmsg;
return -1;
}
path = cwd;
} else {
/* full path to the statefile */
path = str.substr (0, slash);
}
} else {
/* what type of file is it? */
error << string_compose (_("unknown file type for session %1"), str) << endmsg;
return -1;
}
} else {
/* its the name of a new directory. get the name
as "dirname" does.
*/
string::size_type slash = str.find_last_of (G_DIR_SEPARATOR);
if (slash == string::npos) {
/* no slash, just use the name, but clean it up */
path = legalize_for_path (str);
snapshot = path;
} else {
path = str;
snapshot = str.substr (slash+1);
}
}
return 0;
}
} // namespace ARDOUR
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