// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: fileutl.h,v 1.2 1998/07/07 04:17:13 jgg Exp $
+// $Id: fileutl.h,v 1.26 2001/05/07 05:06:52 jgg Exp $
/* ######################################################################
File Utilities
##################################################################### */
/*}}}*/
-// Header section: pkglib
#ifndef PKGLIB_FILEUTL_H
#define PKGLIB_FILEUTL_H
-#ifdef __GNUG__
-#pragma interface "pkglib/fileutl.h"
-#endif
+#include <apt-pkg/macros.h>
+#include <apt-pkg/aptconfiguration.h>
#include <string>
+#include <vector>
+#include <set>
+#include <time.h>
-class File
+#include <zlib.h>
+
+#ifndef APT_8_CLEANER_HEADERS
+using std::string;
+#endif
+
+/* Define this for python-apt */
+#define APT_HAS_GZIP 1
+
+class FileFdPrivate;
+class FileFd
{
protected:
int iFd;
- enum LocalFlags {AutoClose = (1<<0),Fail = (1<<1),DelOnFail = (1<<2)};
+ enum LocalFlags {AutoClose = (1<<0),Fail = (1<<1),DelOnFail = (1<<2),
+ HitEof = (1<<3), Replace = (1<<4), Compressed = (1<<5) };
unsigned long Flags;
- string FileName;
-
+ std::string FileName;
+ std::string TemporaryFileName;
+
public:
- enum OpenMode {ReadOnly,WriteEmpty,WriteExists};
+ enum OpenMode {
+ ReadOnly = (1 << 0),
+ WriteOnly = (1 << 1),
+ ReadWrite = ReadOnly | WriteOnly,
+
+ Create = (1 << 2),
+ Exclusive = (1 << 3),
+ Atomic = Exclusive | (1 << 4),
+ Empty = (1 << 5),
+
+ WriteEmpty = ReadWrite | Create | Empty,
+ WriteExists = ReadWrite,
+ WriteAny = ReadWrite | Create,
+ WriteTemp = ReadWrite | Create | Exclusive,
+ ReadOnlyGzip,
+ WriteAtomic = ReadWrite | Create | Atomic
+ };
+ enum CompressMode { Auto = 'A', None = 'N', Extension = 'E', Gzip = 'G', Bzip2 = 'B', Lzma = 'L', Xz = 'X' };
- bool Read(void *To,unsigned long Size);
- bool Write(void *From,unsigned long Size);
- bool Seek(unsigned long To);
- unsigned long Size();
- bool Close();
+ inline bool Read(void *To,unsigned long long Size,bool AllowEof)
+ {
+ unsigned long long Jnk;
+ if (AllowEof)
+ return Read(To,Size,&Jnk);
+ return Read(To,Size);
+ }
+ bool Read(void *To,unsigned long long Size,unsigned long long *Actual = 0);
+ char* ReadLine(char *To, unsigned long long const Size);
+ bool Write(const void *From,unsigned long long Size);
+ bool static Write(int Fd, 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();
+ time_t ModificationTime();
+ /* 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… */
+ bool Read(void *To,unsigned long long Size,unsigned long *Actual) APT_DEPRECATED
+ {
+ unsigned long long R;
+ bool const T = Read(To, Size, &R);
+ *Actual = R;
+ return T;
+ }
+
+ bool Open(std::string FileName,unsigned int const Mode,CompressMode Compress,unsigned long const Perms = 0666);
+ bool Open(std::string FileName,unsigned int const Mode,APT::Configuration::Compressor const &compressor,unsigned long const Perms = 0666);
+ inline bool Open(std::string const &FileName,unsigned int const Mode, unsigned long const Perms = 0666) {
+ return Open(FileName, Mode, None, Perms);
+ };
+ bool OpenDescriptor(int Fd, unsigned int const Mode, CompressMode Compress, bool AutoClose=false);
+ bool OpenDescriptor(int Fd, unsigned int const Mode, APT::Configuration::Compressor const &compressor, bool AutoClose=false);
+ inline bool OpenDescriptor(int Fd, unsigned int const Mode, bool AutoClose=false) {
+ return OpenDescriptor(Fd, Mode, None, AutoClose);
+ };
+ bool Close();
+ bool Sync();
+
// Simple manipulators
inline int Fd() {return iFd;};
+ inline void Fd(int fd) { OpenDescriptor(fd, ReadWrite);};
+ gzFile gzFd() APT_DEPRECATED;
+
inline bool IsOpen() {return iFd >= 0;};
inline bool Failed() {return (Flags & Fail) == Fail;};
inline void EraseOnFailure() {Flags |= DelOnFail;};
inline void OpFail() {Flags |= Fail;};
-
- File(string FileName,OpenMode Mode,unsigned long Perms = 0666);
- File(int Fd) : iFd(Fd), Flags(AutoClose) {};
- File(int Fd,bool) : iFd(Fd), Flags(0) {};
- virtual ~File();
+ inline bool Eof() {return (Flags & HitEof) == HitEof;};
+ inline bool IsCompressed() {return (Flags & Compressed) == Compressed;};
+ inline std::string &Name() {return FileName;};
+
+ FileFd(std::string FileName,unsigned int const Mode,unsigned long Perms = 0666) : iFd(-1), Flags(0), d(NULL)
+ {
+ Open(FileName,Mode, None, Perms);
+ };
+ FileFd(std::string FileName,unsigned int const Mode, CompressMode Compress, unsigned long Perms = 0666) : iFd(-1), Flags(0), d(NULL)
+ {
+ Open(FileName,Mode, Compress, Perms);
+ };
+ FileFd() : iFd(-1), Flags(AutoClose), d(NULL) {};
+ FileFd(int const Fd, unsigned int const Mode = ReadWrite, CompressMode Compress = None) : iFd(-1), Flags(0), d(NULL)
+ {
+ OpenDescriptor(Fd, Mode, Compress);
+ };
+ FileFd(int const Fd, bool const AutoClose) : iFd(-1), Flags(0), d(NULL)
+ {
+ OpenDescriptor(Fd, ReadWrite, None, AutoClose);
+ };
+ virtual ~FileFd();
+
+ private:
+ FileFdPrivate* d;
+ bool OpenInternDescriptor(unsigned int const Mode, APT::Configuration::Compressor const &compressor);
+
+ // private helpers to set Fail flag and call _error->Error
+ bool FileFdErrno(const char* Function, const char* Description,...) APT_PRINTF(3) APT_COLD;
+ bool FileFdError(const char* Description,...) APT_PRINTF(2) APT_COLD;
};
-bool CopyFile(string From,string To);
-int GetLock(string File,bool Errors = true);
-bool FileExists(string File);
-string SafeGetCWD();
+bool RunScripts(const char *Cnf);
+bool CopyFile(FileFd &From,FileFd &To);
+int GetLock(std::string File,bool Errors = true);
+bool FileExists(std::string File);
+bool RealFileExists(std::string File);
+bool DirectoryExists(std::string const &Path) APT_CONST;
+bool CreateDirectory(std::string const &Parent, std::string const &Path);
+time_t GetModificationTime(std::string const &Path);
+
+std::string GetTempDir();
+
+/** \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(std::string const &Parent, std::string const &Path);
+
+std::vector<std::string> GetListOfFilesInDir(std::string const &Dir, std::string const &Ext,
+ bool const &SortList, bool const &AllowNoExt=false);
+std::vector<std::string> GetListOfFilesInDir(std::string const &Dir, std::vector<std::string> const &Ext,
+ bool const &SortList);
+std::vector<std::string> GetListOfFilesInDir(std::string const &Dir, bool SortList);
+std::string SafeGetCWD();
+void SetCloseExec(int Fd,bool Close);
+void SetNonBlock(int Fd,bool Block);
+bool WaitFd(int Fd,bool write = false,unsigned long timeout = 0);
+pid_t ExecFork();
+pid_t ExecFork(std::set<int> keep_fds);
+void MergeKeepFdsFromConfiguration(std::set<int> &keep_fds);
+bool ExecWait(pid_t Pid,const char *Name,bool Reap = false);
+
+// File string manipulators
+std::string flNotDir(std::string File);
+std::string flNotFile(std::string File);
+std::string flNoLink(std::string File);
+std::string flExtension(std::string File);
+std::string flCombine(std::string Dir,std::string File);
+
+// simple c++ glob
+std::vector<std::string> Glob(std::string const &pattern, int flags=0);
#endif
projects / apt.git / blobdiff