enable APT in unpack/configure ordering to handle loops as well

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

diff --git a/apt-pkg/contrib/fileutl.h b/apt-pkg/contrib/fileutl.h
index 73b5ea3be1a3ed410ba658810cf56e9c940ffa5f..973a38cff6841cf22834c4a7243df74bb8565086 100644 (file)
--- a/apt-pkg/contrib/fileutl.h
+++ b/apt-pkg/contrib/fileutl.h
@@ -21,8 +21,15 @@
 #ifndef PKGLIB_FILEUTL_H
 #define PKGLIB_FILEUTL_H
 
+#include <apt-pkg/macros.h>
 
 #include <string>
+#include <vector>
+
+#include <zlib.h>
+
+/* Define this for python-apt */
+#define APT_HAS_GZIP 1
 
 using std::string;
 
@@ -32,34 +39,55 @@ class FileFd
    int iFd;
  
    enum LocalFlags {AutoClose = (1<<0),Fail = (1<<1),DelOnFail = (1<<2),
-                    HitEof = (1<<3)};
+                    HitEof = (1<<3), Replace = (1<<4) };
    unsigned long Flags;
    string FileName;
-   
+   string TemporaryFileName;
+   gzFile gz;
+
    public:
-   enum OpenMode {ReadOnly,WriteEmpty,WriteExists,WriteAny,WriteTemp};
+   enum OpenMode {ReadOnly,WriteEmpty,WriteExists,WriteAny,WriteTemp,ReadOnlyGzip,
+                  WriteAtomic};
    
-   inline bool Read(void *To,unsigned long Size,bool AllowEof)
+   inline bool Read(void *To,unsigned long long Size,bool AllowEof)
    {
-      unsigned long Jnk;
+      unsigned long long Jnk;
       if (AllowEof)
         return Read(To,Size,&Jnk);
       return Read(To,Size);
    }   
-   bool Read(void *To,unsigned long Size,unsigned long *Actual = 0);
-   bool Write(const void *From,unsigned long Size);
-   bool Seek(unsigned long To);
-   bool Skip(unsigned long To);
-   bool Truncate(unsigned long To);
-   unsigned long Tell();
-   unsigned long Size();
+   bool Read(void *To,unsigned long long Size,unsigned long long *Actual = 0);
+   bool Write(const void *From,unsigned long long Size);
+   bool Seek(unsigned long long To);
+   bool Skip(unsigned long long To);
+   bool Truncate(unsigned long long To);
+   unsigned long long Tell();
+   unsigned long long Size();
+   unsigned long long FileSize();
+
+   /* You want to use 'unsigned long long' if you are talking about a file
+      to be able to support large files (>2 or >4 GB) properly.
+      This shouldn't happen all to often for the indexes, but deb's might be…
+      And as the auto-conversation converts a 'unsigned long *' to a 'bool'
+      instead of 'unsigned long long *' we need to provide this explicitely -
+      otherwise applications magically start to fail… */
+   __deprecated bool Read(void *To,unsigned long long Size,unsigned long *Actual)
+   {
+       unsigned long long R;
+       bool const T = Read(To, Size, &R);
+       *Actual = R;
+       return T;
+   }
+
    bool Open(string FileName,OpenMode Mode,unsigned long Perms = 0666);
+   bool OpenDescriptor(int Fd, OpenMode Mode, bool AutoClose=false);
    bool Close();
    bool Sync();
    
    // Simple manipulators
    inline int Fd() {return iFd;};
    inline void Fd(int fd) {iFd = fd;};
+   inline gzFile gzFd() {return gz;};
    inline bool IsOpen() {return iFd >= 0;};
    inline bool Failed() {return (Flags & Fail) == Fail;};
    inline void EraseOnFailure() {Flags |= DelOnFail;};
@@ -68,12 +96,12 @@ class FileFd
    inline string &Name() {return FileName;};
    
    FileFd(string FileName,OpenMode Mode,unsigned long Perms = 0666) : iFd(-1), 
-            Flags(0) 
+            Flags(0), gz(NULL)
    {
       Open(FileName,Mode,Perms);
    };
-   FileFd(int Fd = -1) : iFd(Fd), Flags(AutoClose) {};
-   FileFd(int Fd,bool) : iFd(Fd), Flags(0) {};
+   FileFd(int Fd = -1) : iFd(Fd), Flags(AutoClose), gz(NULL) {};
+   FileFd(int Fd,bool) : iFd(Fd), Flags(0), gz(NULL) {};
    virtual ~FileFd();
 };
 
@@ -81,6 +109,23 @@ bool RunScripts(const char *Cnf);
 bool CopyFile(FileFd &From,FileFd &To);
 int GetLock(string File,bool Errors = true);
 bool FileExists(string File);
+bool RealFileExists(string File);
+bool DirectoryExists(string const &Path) __attrib_const;
+bool CreateDirectory(string const &Parent, string const &Path);
+time_t GetModificationTime(string const &Path);
+
+/** \brief Ensure the existence of the given Path
+ *
+ *  \param Parent directory of the Path directory - a trailing
+ *  /apt/ will be removed before CreateDirectory call.
+ *  \param Path which should exist after (successful) call
+ */
+bool CreateAPTDirectoryIfNeeded(string const &Parent, string const &Path);
+
+std::vector<string> GetListOfFilesInDir(string const &Dir, string const &Ext,
+                                       bool const &SortList, bool const &AllowNoExt=false);
+std::vector<string> GetListOfFilesInDir(string const &Dir, std::vector<string> const &Ext,
+                                       bool const &SortList);
 string SafeGetCWD();
 void SetCloseExec(int Fd,bool Close);
 void SetNonBlock(int Fd,bool Block);