libs/pbd/clear_dir.cc

   1 #include <string>
   2 #include <dirent.h>
   3 #include <unistd.h>
   4 #include <sys/stat.h>
   5 #include <errno.h>
   6 #include <string.h>
   7
   8 #include <glibmm/miscutils.h>
   9
  10 #include "pbd/error.h"
  11 #include "pbd/compose.h"
  12 #include "pbd/clear_dir.h"
  13
  14 #include "i18n.h"
  15
  16 using namespace PBD;
  17 using namespace std;
  18
  19 int
  20 PBD::clear_directory (const string& dir, size_t* size, vector<string>* paths)
  21 {
  22         struct dirent* dentry;
  23         struct stat statbuf;
  24         DIR* dead;
  25         int ret = 0;
  26
  27         if ((dead = ::opendir (dir.c_str())) == 0) {
  28                 return -1;
  29         }
  30
  31         while ((dentry = ::readdir (dead)) != 0) {
  32
  33                 /* avoid '.' and '..' */
  34
  35                 if ((dentry->d_name[0] == '.' && dentry->d_name[1] == '\0') ||
  36                     (dentry->d_name[2] == '\0' && dentry->d_name[0] == '.' && dentry->d_name[1] == '.')) {
  37                         continue;
  38                 }
  39
  40                 string fullpath = Glib::build_filename (dir, dentry->d_name);
  41
  42                 if (::stat (fullpath.c_str(), &statbuf)) {
  43                         continue;
  44                 }
  45
  46                 if (!S_ISREG (statbuf.st_mode)) {
  47                         continue;
  48                 }
  49
  50                 if (::unlink (fullpath.c_str())) {
  51                         error << string_compose (_("cannot remove file %1 (%2)"), fullpath, strerror (errno))
  52                               << endmsg;
  53                         ret = 1;
  54                 }
  55
  56                 if (paths) {
  57                         paths->push_back (dentry->d_name);
  58                 }
  59
  60                 if (size) {
  61                         *size += statbuf.st_size;
  62                 }
  63         }
  64
  65         ::closedir (dead);
  66
  67         return ret;
  68 }