if the package has no installed & candidate but is virtual see if only

[apt.git] / apt-pkg / contrib / fileutl.cc

diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc
index da32983f11ab13dc2c7a7ff448cbec122a677ae5..e95ddf56256143ff8264d44a504ba28ad9d11099 100644 (file)
--- a/apt-pkg/contrib/fileutl.cc
+++ b/apt-pkg/contrib/fileutl.cc
@@ -18,6 +18,7 @@
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
 #include <apt-pkg/fileutl.h>
+#include <apt-pkg/strutl.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/sptr.h>
 #include <apt-pkg/configuration.h>
@@ -197,15 +198,61 @@ bool FileExists(string File)
    return true;
 }
                                                                        /*}}}*/
+// DirectoryExists - Check if a directory exists and is really one     /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool DirectoryExists(string const &Path)
+{
+   struct stat Buf;
+   if (stat(Path.c_str(),&Buf) != 0)
+      return false;
+   return ((Buf.st_mode & S_IFDIR) != 0);
+}
+                                                                       /*}}}*/
+// CreateDirectory - poor man's mkdir -p guarded by a parent directory /*{{{*/
+// ---------------------------------------------------------------------
+/* This method will create all directories needed for path in good old
+   mkdir -p style but refuses to do this if Parent is not a prefix of
+   this Path. Example: /var/cache/ and /var/cache/apt/archives are given,
+   so it will create apt/archives if /var/cache exists - on the other
+   hand if the parent is /var/lib the creation will fail as this path
+   is not a parent of the path to be generated. */
+bool CreateDirectory(string const &Parent, string const &Path)
+{
+   if (Parent.empty() == true || Path.empty() == true)
+      return false;
+
+   if (DirectoryExists(Path) == true)
+      return true;
+
+   if (DirectoryExists(Parent) == false)
+      return false;
+
+   // we are not going to create directories "into the blue"
+   if (Path.find(Parent, 0) != 0)
+      return false;
+
+   vector<string> const dirs = VectorizeString(Path.substr(Parent.size()), '/');
+   string progress = Parent;
+   for (vector<string>::const_iterator d = dirs.begin(); d != dirs.end(); ++d)
+   {
+      if (d->empty() == true)
+        continue;
+
+      progress.append("/").append(*d);
+      if (DirectoryExists(progress) == true)
+        continue;
+
+      if (mkdir(progress.c_str(), 0755) != 0)
+        return false;
+   }
+   return true;
+}
+                                                                       /*}}}*/
 // GetListOfFilesInDir - returns a vector of files in the given dir    /*{{{*/
 // ---------------------------------------------------------------------
 /* If an extension is given only files with this extension are included
    in the returned vector, otherwise every "normal" file is included. */
-std::vector<string> GetListOfFilesInDir(string const &Dir, string const &Ext,
-                                       bool const &SortList)
-{
-   return GetListOfFilesInDir(Dir, Ext, SortList, false);
-}
 std::vector<string> GetListOfFilesInDir(string const &Dir, string const &Ext,
                                        bool const &SortList, bool const &AllowNoExt)
 {
@@ -234,6 +281,7 @@ std::vector<string> GetListOfFilesInDir(string const &Dir, std::vector<string> c
    }
 
    std::vector<string> List;
+   Configuration::MatchAgainstConfig SilentIgnore("Dir::Ignore-Files-Silently");
    DIR *D = opendir(Dir.c_str());
    if (D == 0) 
    {
@@ -259,6 +307,7 @@ std::vector<string> GetListOfFilesInDir(string const &Dir, std::vector<string> c
            {
               if (Debug == true)
                  std::clog << "Bad file: " << Ent->d_name << " → no extension" << std::endl;
+              _error->Notice("Ignoring file '%s' in directory '%s' as it has no filename extension", Ent->d_name, Dir.c_str());
               continue;
            }
         }
@@ -266,6 +315,8 @@ std::vector<string> GetListOfFilesInDir(string const &Dir, std::vector<string> c
         {
            if (Debug == true)
               std::clog << "Bad file: " << Ent->d_name << " → bad extension »" << flExtension(Ent->d_name) << "«" << std::endl;
+           if (SilentIgnore.Match(Ent->d_name) == false)
+              _error->Notice("Ignoring file '%s' in directory '%s' as it has an invalid filename extension", Ent->d_name, Dir.c_str());
            continue;
         }
       }