mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-06 11:23:45 +00:00
568 lines
16 KiB
C++
568 lines
16 KiB
C++
// -*- C++ -*-
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/**
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* \file VCBackend.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Lars Gullik Bjønnes
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* \author Pavel Sanda
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef VC_BACKEND_H
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#define VC_BACKEND_H
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#include "support/FileName.h"
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#include <string>
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#include <vector>
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#include "LyXVC.h"
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namespace lyx {
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class Buffer;
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/// A simple version control system interface
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class VCS {
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public:
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/// the status of the managed file
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enum VCStatus {
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UNLOCKED,
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LOCKED,
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NOLOCKING,
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};
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VCS(Buffer * b) : vcstatus(NOLOCKING), owner_(b) {}
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virtual ~VCS() {}
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/// register a file for version control
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virtual void registrer(std::string const & msg) = 0;
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/// can this operation be processed in the current VCS?
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virtual bool renameEnabled() = 0;
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/// rename a file. Return non-empty log on success, empty log on failure.
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virtual std::string rename(support::FileName const &, std::string const &) = 0;
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/// can this operation be processed in the current VCS?
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virtual bool copyEnabled() = 0;
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/// copy a file. Return non-empty log on success, empty log on failure.
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virtual std::string copy(support::FileName const &, std::string const &) = 0;
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/// check in the current revision.
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/// \p log is non-empty on success and may be empty on failure.
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virtual LyXVC::CommandResult
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checkIn(std::string const & msg, std::string & log) = 0;
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/// can this operation be processed in the current VCS?
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virtual bool checkInEnabled() = 0;
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/// should a log message provided for next checkin?
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virtual bool isCheckInWithConfirmation() = 0;
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/// check out for editing, returns log
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virtual std::string checkOut() = 0;
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/// can this operation be processed in the current VCS?
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virtual bool checkOutEnabled() = 0;
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/// synchronize with repository, returns log
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virtual std::string repoUpdate() = 0;
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/// can this operation be processed in the current VCS?
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virtual bool repoUpdateEnabled() = 0;
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/// toggle locking property of the file
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virtual std::string lockingToggle() = 0;
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/// can this operation be processed in the current VCS?
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virtual bool lockingToggleEnabled() = 0;
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/// revert current edits
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virtual bool revert() = 0;
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/// should a confirmation before revert requested?
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virtual bool isRevertWithConfirmation() = 0;
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/**
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* Merge the current with the previous version
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* in a reverse patch kind of way, so that the
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* result is to revert the last changes.
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*/
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virtual void undoLast() = 0;
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/// can this operation be processed in the current VCS?
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virtual bool undoLastEnabled() = 0;
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/**
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* getLog - read the revision log into the given file
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* @param fname file name to read into
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*/
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virtual void getLog(support::FileName const &) = 0;
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/// return the current version description
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virtual std::string const versionString() const = 0;
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/// return the owning buffer
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Buffer * owner() const { return owner_; }
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/// return the lock status of this file
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VCStatus status() const { return vcstatus; }
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/// do we need special handling for read-only toggling?
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/// (also used for check-out operation)
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virtual bool toggleReadOnlyEnabled() = 0;
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/// Return revision info specified by the argument.
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virtual std::string revisionInfo(LyXVC::RevisionInfo const info) = 0;
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/// can this operation be processed in the current VCS?
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virtual bool prepareFileRevision(std::string const & rev, std::string & f) = 0;
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/// can this operation be processed in the current VCS?
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virtual bool prepareFileRevisionEnabled() = 0;
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/// Check the directory of file and all parent directories
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/// for the existence of repository-info like .git or .svn
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static bool checkparentdirs(support::FileName const & file, std::string const & vcsdir);
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protected:
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/// parse information from the version file
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virtual void scanMaster() = 0;
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/// Prepare a version identifier suitable for RCS and CVS.
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/// If needed converts last or relative number to the absolute revision.
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bool makeRCSRevision(std::string const &version, std::string &revis) const;
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/// GUI container for doVCCommandCall
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int doVCCommand(std::string const & cmd, support::FileName const & path, bool reportError = true);
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/**
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* doVCCommandCall - call out to the version control utility
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* @param cmd the command to execute
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* @param path the path from which to execute
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* @return exit status
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*/
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static int doVCCommandCall(std::string const & cmd, support::FileName const & path);
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/**
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* The master VC file. For RCS this is *,v or RCS/ *,v. master should
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* have full path.
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*/
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support::FileName master_;
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/// The status of the VC controlled file.
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VCStatus vcstatus;
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/// The buffer using this VC
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Buffer * const owner_;
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};
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///
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class RCS : public VCS {
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public:
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explicit
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RCS(support::FileName const & m, Buffer * b);
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/// return the revision file for the given file, if found
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static support::FileName const findFile(support::FileName const & file);
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/// get file from repo, the caller must ensure that it does not exist locally
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static bool retrieve(support::FileName const & file);
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virtual void registrer(std::string const & msg);
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virtual bool renameEnabled();
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virtual std::string rename(support::FileName const &, std::string const &);
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virtual bool copyEnabled();
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virtual std::string copy(support::FileName const &, std::string const &);
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virtual LyXVC::CommandResult
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checkIn(std::string const & msg, std::string & log);
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virtual bool checkInEnabled();
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virtual bool isCheckInWithConfirmation();
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virtual std::string checkOut();
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virtual bool checkOutEnabled();
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virtual std::string repoUpdate();
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virtual bool repoUpdateEnabled();
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virtual std::string lockingToggle();
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virtual bool lockingToggleEnabled();
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virtual bool revert();
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virtual bool isRevertWithConfirmation();
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virtual void undoLast();
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virtual bool undoLastEnabled();
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virtual void getLog(support::FileName const &);
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virtual std::string const versionString() const {
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return "RCS: " + version_;
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}
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virtual bool toggleReadOnlyEnabled();
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virtual std::string revisionInfo(LyXVC::RevisionInfo const info);
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virtual bool prepareFileRevision(std::string const & rev, std::string & f);
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virtual bool prepareFileRevisionEnabled();
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protected:
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virtual void scanMaster();
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private:
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bool getRevisionInfo();
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/**
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* The version of the VC file. I am not sure if this can be a
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* string or if it must be a float/int.
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*/
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std::string version_;
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/// The user currently keeping the lock on the VC file (or "Unlocked").
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std::string locker_;
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/// Cache for revision info.
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std::string rev_date_cache_;
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///
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std::string rev_time_cache_;
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///
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std::string rev_author_cache_;
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};
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///
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class CVS : public VCS {
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public:
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///
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explicit
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CVS(support::FileName const & m, Buffer * b);
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/// return the revision file for the given file, if found
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static support::FileName const findFile(support::FileName const & file);
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/// get file from repo, the caller must ensure that it does not exist locally
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static bool retrieve(support::FileName const & file);
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virtual void registrer(std::string const & msg);
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virtual bool renameEnabled();
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virtual std::string rename(support::FileName const &, std::string const &);
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virtual bool copyEnabled();
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virtual std::string copy(support::FileName const &, std::string const &);
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virtual LyXVC::CommandResult
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checkIn(std::string const & msg, std::string & log);
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virtual bool checkInEnabled();
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virtual bool isCheckInWithConfirmation();
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virtual std::string checkOut();
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virtual bool checkOutEnabled();
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virtual std::string repoUpdate();
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virtual bool repoUpdateEnabled();
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virtual std::string lockingToggle();
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virtual bool lockingToggleEnabled();
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virtual bool isRevertWithConfirmation();
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virtual bool revert();
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virtual void undoLast();
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virtual bool undoLastEnabled();
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virtual void getLog(support::FileName const &);
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/// Check for messages in cvs output.
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/// Returns conflict line.
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std::string scanLogFile(support::FileName const & f, std::string & status);
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virtual std::string const versionString() const {
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return "CVS: " + version_;
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}
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virtual bool toggleReadOnlyEnabled();
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virtual std::string revisionInfo(LyXVC::RevisionInfo const info);
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virtual bool prepareFileRevision(std::string const & rev, std::string & f);
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virtual bool prepareFileRevisionEnabled();
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protected:
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virtual void scanMaster();
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/// the mode of operation for some VC commands
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enum OperationMode {
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Directory = 0,
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File = 1
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};
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/// possible status values of file
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enum CvsStatus {
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UpToDate = 0,
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LocallyModified = 1,
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LocallyAdded = 2,
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NeedsMerge = 3,
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NeedsCheckout = 4,
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NoCvsFile = 5,
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StatusError = 6
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};
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private:
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// revision number from scanMaster
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std::string version_;
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/**
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* doVCCommandWithOutput
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* - call out to the version control utility
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* - it is able to collect output in a file
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* @param cmd the command to execute
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* @param path the path from which to execute
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* @param output the path where to store output
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* @param reportError display of low level error message dialog
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* @return exit status
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*/
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int doVCCommandWithOutput(std::string const & cmd,
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support::FileName const & path,
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support::FileName const & output,
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bool reportError = true);
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static int doVCCommandCallWithOutput(std::string const & cmd,
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support::FileName const & path,
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support::FileName const & output);
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/// return the quoted pathname if Directory or filename if File
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virtual std::string const getTarget(OperationMode opmode) const;
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/// collect the diff of file or directory against repository
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/// result is placed in temporary file
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void getDiff(OperationMode opmode, support::FileName const & tmpf);
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/// make the file ready for editing:
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/// save a copy in CVS/Base and change file permissions to rw if needed
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virtual int edit();
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/// revert the edit operation
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virtual int unedit();
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/// retrieve repository changes into working copy
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virtual int update(OperationMode opmode, support::FileName const & tmpf);
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/// check readonly state for file
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/// assume true when file is writable
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virtual bool isLocked() const;
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/// query and parse the cvs status of file
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virtual CvsStatus getStatus();
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/// convert enum to string
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virtual docstring toString(CvsStatus status) const;
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/// cache the info values of current file revision
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/// author, date and time of commit
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std::string rev_author_cache_;
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std::string rev_date_cache_;
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std::string rev_time_cache_;
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/// fills the cache values, returns true if successfull.
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void getRevisionInfo();
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bool have_rev_info_;
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};
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///
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class SVN : public VCS {
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public:
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///
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explicit
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SVN(support::FileName const & m, Buffer * b);
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/// return the revision file for the given file, if found
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static support::FileName const findFile(support::FileName const & file);
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/// get file from repo, the caller must ensure that it does not exist locally
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static bool retrieve(support::FileName const & file);
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virtual void registrer(std::string const & msg);
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virtual bool renameEnabled();
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virtual std::string rename(support::FileName const &, std::string const &);
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virtual bool copyEnabled();
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virtual std::string copy(support::FileName const &, std::string const &);
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virtual LyXVC::CommandResult
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checkIn(std::string const & msg, std::string & log);
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virtual bool checkInEnabled();
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virtual bool isCheckInWithConfirmation();
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virtual std::string checkOut();
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virtual bool checkOutEnabled();
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virtual std::string repoUpdate();
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virtual bool repoUpdateEnabled();
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virtual std::string lockingToggle();
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virtual bool lockingToggleEnabled();
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virtual bool revert();
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virtual bool isRevertWithConfirmation();
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virtual void undoLast();
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virtual bool undoLastEnabled();
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virtual void getLog(support::FileName const &);
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virtual std::string const versionString() const {
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return "SVN: " + rev_file_cache_;
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}
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virtual bool toggleReadOnlyEnabled();
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virtual std::string revisionInfo(LyXVC::RevisionInfo const info);
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virtual bool prepareFileRevision(std::string const & rev, std::string & f);
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virtual bool prepareFileRevisionEnabled();
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protected:
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virtual void scanMaster();
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/// Check for messages in svn output. Returns error.
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std::string scanLogFile(support::FileName const & f, std::string & status);
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/// checks locking policy and setup locked_mode_
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bool checkLockMode();
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/// is the loaded file locked?
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bool isLocked() const;
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/// acquire/release write lock for the current file
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bool fileLock(bool lock, support::FileName const & tmpf, std::string & status);
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/// Check in files \p f with log \p msg
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LyXVC::CommandResult checkIn(std::vector<support::FileName> const & f,
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std::string const & msg, std::string & log);
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private:
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/// is the loaded file under locking policy?
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bool locked_mode_;
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/**
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* Real code for obtaining file revision info. Fills all file-related caches
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* and returns true if successfull.
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* "?" is stored in rev_file_cache_ as a signal if request for obtaining info
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* was already unsuccessful.
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*/
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bool getFileRevisionInfo();
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/// cache for file revision number, "?" if already unsuccessful, isNumber==true
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std::string rev_file_cache_;
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/// cache for author of last commit
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std::string rev_author_cache_;
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/// cache for date of last commit
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std::string rev_date_cache_;
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/// cache for time of last commit
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std::string rev_time_cache_;
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/// fills rev_tree_cache_, returns true if successfull.
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bool getTreeRevisionInfo();
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/// cache for tree revision number, "?" if already unsuccessful
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std::string rev_tree_cache_;
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};
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/**
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* Very basic git support:
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* Remote repos are completely ignored, only the local tree is considered.
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* How push and pull could be integrated with the LyX VCS interface needs
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* to be discussed.
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*/
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class GIT : public VCS {
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public:
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///
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explicit
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GIT(support::FileName const & m, Buffer * b);
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/// return the revision file for the given file, if found
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static support::FileName const findFile(support::FileName const & file);
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/// get file from repo, the caller must ensure that it does not exist locally
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static bool retrieve(support::FileName const & file);
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virtual void registrer(std::string const & msg);
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virtual bool renameEnabled();
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virtual std::string rename(support::FileName const &, std::string const &);
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virtual bool copyEnabled();
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virtual std::string copy(support::FileName const &, std::string const &);
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virtual LyXVC::CommandResult
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checkIn(std::string const & msg, std::string & log);
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virtual bool checkInEnabled();
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virtual bool isCheckInWithConfirmation();
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virtual std::string checkOut();
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virtual bool checkOutEnabled();
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virtual std::string repoUpdate();
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virtual bool repoUpdateEnabled();
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virtual std::string lockingToggle();
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virtual bool lockingToggleEnabled();
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virtual bool revert();
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virtual bool isRevertWithConfirmation();
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virtual void undoLast();
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virtual bool undoLastEnabled();
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virtual void getLog(support::FileName const &);
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virtual std::string const versionString() const {
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return "GIT: ?";
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}
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virtual bool toggleReadOnlyEnabled();
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virtual std::string revisionInfo(LyXVC::RevisionInfo const info);
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virtual bool prepareFileRevision(std::string const & rev, std::string & f);
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virtual bool prepareFileRevisionEnabled();
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protected:
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virtual void scanMaster();
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/// Check for messages in svn output. Returns error.
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std::string scanLogFile(support::FileName const & f, std::string & status);
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/// Check in files \p f with log \p msg
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LyXVC::CommandResult checkIn(std::vector<support::FileName> const & f,
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std::string const & msg, std::string & log);
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private:
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/**
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* Real code for obtaining file revision info. Fills all file-related caches
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* and returns true if successfull.
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* "?" is stored in rev_file_cache_ as a signal if request for obtaining info
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* was already unsuccessful.
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*/
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bool getFileRevisionInfo();
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/// cache for file revision number, "?" if already unsuccessful, isNumber==true
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std::string rev_file_cache_;
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/// cache for author of last commit
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std::string rev_author_cache_;
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/// cache for date of last commit
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std::string rev_date_cache_;
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/// cache for time of last commit
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std::string rev_time_cache_;
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/// fills rev_tree_cache_, returns true if successfull.
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bool getTreeRevisionInfo();
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/// cache for tree revision number, "?" if already unsuccessful
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std::string rev_tree_cache_;
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};
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} // namespace lyx
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#endif // VCBACKEND_H
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