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-{**************************************************************************************************}
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-{ }
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-{ Project JEDI Code Library (JCL) }
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-{ }
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-{ The contents of this file are subject to the Mozilla Public License Version 1.1 (the "License"); }
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-{ you may not use this file except in compliance with the License. You may obtain a copy of the }
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-{ License at http://www.mozilla.org/MPL/ }
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-{ }
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-{ Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF }
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-{ ANY KIND, either express or implied. See the License for the specific language governing rights }
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-{ and limitations under the License. }
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-{ }
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-{ The Original Code is JclUnitVersioning.pas. }
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-{ }
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-{ The Initial Developer of the Original Code is Andreas Hausladen. }
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-{ Portions created by Andreas Hausladen are Copyright (C) Andreas Hausladen. All rights reserved. }
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-{ }
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-{ Contributor(s): }
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-{ Andreas Hausladen (ahuser) }
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-{ }
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-{**************************************************************************************************}
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-{ }
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-{ A unit version information system. It collects information from prepared units by each module. }
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-{ It also works with units in DLLs. }
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-{ }
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-{**************************************************************************************************}
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-{ }
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-{ Last modified: $Date:: $ }
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-{ Revision: $Rev:: $ }
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-{ Author: $Author:: $ }
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-{ }
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-{**************************************************************************************************}
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-
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-unit JclUnitVersioning;
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-
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-{$I jcl.inc}
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-
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-interface
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-
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-uses
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- {$IFDEF HAS_UNIT_LIBC}
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- Libc,
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- {$ENDIF HAS_UNIT_LIBC}
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- {$IFDEF HAS_UNITSCOPE}
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- {$IFDEF MSWINDOWS}
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- Winapi.Windows,
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- {$ENDIF MSWINDOWS}
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- System.SysUtils, System.Contnrs;
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- {$ELSE ~HAS_UNITSCOPE}
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- {$IFDEF MSWINDOWS}
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- Windows,
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- {$ENDIF MSWINDOWS}
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- SysUtils, Contnrs;
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- {$ENDIF ~HAS_UNITSCOPE}
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-
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-type
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- PUnitVersionInfo = ^TUnitVersionInfo;
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- TUnitVersionInfo = record
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- RCSfile: PChar; // $'RCSfile$
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- Revision: PChar; // $'Revision$
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- Date: PChar; // $'Date$ in UTC (GMT)
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- LogPath: PChar; // logical file path
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- Extra: PChar; // user defined string
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- Data: Pointer; // user data
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- end;
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-
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- TUnitVersion = class(TObject)
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- private
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- FInfo: PUnitVersionInfo;
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- public
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- constructor Create(AInfo: PUnitVersionInfo);
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- function RCSfile: string;
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- function Revision: string;
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- function Date: string;
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- function Extra: string;
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- function LogPath: string;
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- function Data: Pointer;
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- function DateTime: TDateTime;
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- function Summary: string;
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- end;
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-
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- TUnitVersioningModule = class(TObject)
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- private
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- FInstance: THandle;
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- FItems: TObjectList;
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-
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- function GetItems(Index: Integer): TUnitVersion;
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- function GetCount: Integer;
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-
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- procedure Add(Info: PUnitVersionInfo);
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- function IndexOfInfo(Info: PUnitVersionInfo): Integer;
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- public
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- constructor Create(AInstance: THandle);
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- destructor Destroy; override;
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-
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- function IndexOf(const RCSfile: string; const LogPath: string = '*'): Integer;
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- function FindUnit(const RCSfile: string; const LogPath: string = '*'): TUnitVersion;
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-
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- property Instance: THandle read FInstance;
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- property Count: Integer read GetCount;
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- property Items[Index: Integer]: TUnitVersion read GetItems; default;
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- end;
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-
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- TCustomUnitVersioningProvider = class(TObject)
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- public
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- constructor Create; virtual;
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- procedure LoadModuleUnitVersioningInfo(Instance: THandle); virtual;
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- procedure ReleaseModuleUnitVersioningInfo(Instance: THandle); virtual;
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- end;
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-
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- TUnitVersioningProviderClass = class of TCustomUnitVersioningProvider;
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-
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- TUnitVersioning = class(TObject)
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- private
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- FModules: TObjectList;
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- FProviders: TObjectList;
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-
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- function GetItem(Index: Integer): TUnitVersion;
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- function GetCount: Integer;
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- function GetModuleCount: Integer;
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- function GetModule(Index: Integer): TUnitVersioningModule;
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-
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- procedure UnregisterModule(Module: TUnitVersioningModule); overload;
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- procedure ValidateModules;
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- // These two methods must be virtual because they can be invoked by a DLL.
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- // Static linking would mean that the DLL's TUnitVersioning methods handle
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- // the call which leads to an access violation.
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- procedure Add(Instance: THandle; Info: PUnitVersionInfo); virtual;
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- procedure UnregisterModule(Instance: THandle); overload; virtual;
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- public
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- constructor Create;
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- destructor Destroy; override;
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-
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- procedure RegisterProvider(AProviderClass: TUnitVersioningProviderClass);
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- procedure LoadModuleUnitVersioningInfo(Instance: THandle);
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-
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- function IndexOf(const RCSfile: string; const LogPath: string = '*'): Integer;
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- function FindUnit(const RCSfile: string; const LogPath: string = '*'): TUnitVersion;
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-
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- // units by modules
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- property ModuleCount: Integer read GetModuleCount;
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- property Modules[Index: Integer]: TUnitVersioningModule read GetModule;
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-
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- // all units
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- property Count: Integer read GetCount;
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- property Items[Index: Integer]: TUnitVersion read GetItem; default;
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- end;
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-
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-procedure RegisterUnitVersion(Instance: THandle; const Info: TUnitVersionInfo);
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-procedure UnregisterUnitVersion(Instance: THandle);
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-
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-function GetUnitVersioning: TUnitVersioning;
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-
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-procedure ExportUnitVersioningToFile(iFileName : string);
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-
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-const
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- UnitVersioning: TUnitVersionInfo = (
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- RCSfile: '$URL$';
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- Revision: '$Revision$';
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- Date: '$Date$';
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- LogPath: 'JCL\source\common';
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- Extra: '';
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- Data: nil
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- );
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-
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-implementation
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-
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-uses
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- // make TObjectList functions inlined
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- {$IFDEF HAS_UNITSCOPE}
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- System.Types, // inlining of TObjectList.Remove
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- System.Classes,
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- {$ELSE ~HAS_UNITSCOPE}
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- Classes,
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- {$ENDIF ~HAS_UNITSCOPE}
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- JclSysUtils, JclSynch;
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-
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-// Delphi 5 does not know this function //(usc) D6/7 Per does have StartsWith
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-// a fast version of Pos(SubStr, S) = 1
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-function StartsWith(const SubStr, S: string): Boolean;
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-var
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- I, Len: Integer;
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-begin
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- Result := False;
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- Len := Length(SubStr);
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- if Len <= Length(S) then
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- begin
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- for I := 1 to Len do
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- if S[I] <> SubStr[I] then
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- Exit;
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- Result := True;
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- end;
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-end;
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-
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-function CompareFilenames(const Fn1, Fn2: string): Integer;
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-begin
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- {$IFDEF MSWINDOWS}
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- Result := CompareText(Fn1, Fn2);
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- {$ENDIF MSWINDOWS}
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- {$IFDEF UNIX}
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- Result := CompareStr(Fn1, Fn2);
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- {$ENDIF UNIX}
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-end;
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-
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-//=== { TUnitVersion } =======================================================
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-
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-constructor TUnitVersion.Create(AInfo: PUnitVersionInfo);
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-begin
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- inherited Create;
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- FInfo := AInfo;
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-end;
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-
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-function TUnitVersion.RCSfile: string;
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-var
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- I, P: Integer;
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-begin
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- Result := Trim(FInfo.RCSfile);
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- // the + is to have CVS not touch the string
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- if StartsWith('$' + 'RCSfile: ', Result) then // a CVS command
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- begin
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- Delete(Result, 1, 10);
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- Delete(Result, Length(Result) - 1, 2);
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- for I := Length(Result) downto 1 do
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- if Result[I] = ',' then
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- begin
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- Delete(Result, I, MaxInt);
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- Break;
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- end;
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- end;
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- // the + is to have SVN not touch the string
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- if StartsWith('$' + 'URL: ', Result) then // a SVN command
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- begin
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- Delete(Result, 1, 6);
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- Delete(Result, Length(Result) - 1, 2);
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- { TODO -oUSc : Is there any need for a function that returns the URL? }
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- P := Pos('/', Result);
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- while P > 0 do
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- begin
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- Delete(Result, 1, P);
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- P := Pos('/', Result);
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- end;
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- end;
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-end;
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-
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-function TUnitVersion.Revision: string;
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-begin
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- Result := Trim(FInfo.Revision);
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- if StartsWith('$' + 'Revision: ', Result) then // a CVS command
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- Result := Copy(Result, 12, Length(Result) - 11 - 2);
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-end;
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-
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-function TUnitVersion.Date: string;
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-begin
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- Result := Trim(FInfo.Date);
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- if StartsWith('$' + 'Date: ', Result) then // a CVS command
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- begin
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- Delete(Result, 1, 7);
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- Delete(Result, Length(Result) - 1, 2);
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- end;
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-end;
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-
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-function TUnitVersion.Data: Pointer;
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-begin
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- Result := FInfo.Data;
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-end;
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-
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-function TUnitVersion.Extra: string;
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-begin
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- Result := Trim(FInfo.Extra);
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-end;
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-
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-function TUnitVersion.LogPath: string;
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-begin
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- Result := Trim(FInfo.LogPath);
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-end;
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-
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-function TUnitVersion.DateTime: TDateTime;
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-var
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- Ps: Integer;
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- S: string;
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- Error: Integer;
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- Year, Month, Day, Hour, Minute, Second: Word;
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- TimeSep: Char;
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-begin
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- Result := 0;
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- S := Date;
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-
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- // date: yyyy/mm/dd | yyyy-mm-dd | mm/dd/yyyy | mm-dd-yyyy | dd.mm.yyyy
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- Ps := Pos('/', S);
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- if Ps = 0 then
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- Ps := Pos('-', S);
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- if Ps <> 0 then
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- begin
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- if Ps = 5 then
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- begin
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- // yyyy/mm/dd | yyyy-mm-dd
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- Val(Copy(S, 1, 4), Year, Error);
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- Val(Copy(S, 6, 2), Month, Error);
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- Val(Copy(S, 9, 2), Day, Error);
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- end
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- else
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- begin
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- // mm/dd/yyyy | mm-dd-yyyy
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- Val(Copy(S, 1, 2), Month, Error);
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- Val(Copy(S, 4, 2), Day, Error);
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- Val(Copy(S, 7, 4), Year, Error);
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- end;
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- end
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- else
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- begin
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- Ps := Pos('.', S);
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- if Ps <> 0 then
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- begin
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- // dd.mm.yyyy
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- Val(Copy(S, 1, 2), Day, Error);
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- Val(Copy(S, 4, 2), Month, Error);
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- Val(Copy(S, 7, 4), Year, Error);
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- end
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- else
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- Exit;
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- end;
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-
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- // time: hh:mm:ss | hh/mm/ss
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- Ps := Pos(' ', S);
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- S := Trim(Copy(S, Ps + 1, MaxInt));
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-
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- Ps := Pos(':', S);
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- if Ps <> 0 then
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- TimeSep := ':'
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- else
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- begin
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- Ps := Pos('/', S);
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- TimeSep := '/';
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- end;
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- Val(Copy(S, 1, Ps - 1), Hour, Error);
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- Delete(S, 1, Ps);
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- Ps := Pos(TimeSep, S);
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- Val(Copy(S, 1, Ps - 1), Minute, Error);
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- Delete(S, 1, Ps);
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- Ps := Pos(TimeSep, S);
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- if Ps = 0 then
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- Ps := Length(S) + 1;
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- Val(Copy(S, 1, Ps - 1), Second, Error);
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-
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- Result := EncodeDate(Year, Month, Day) + EncodeTime(Hour, Minute, Second, 0);
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-end;
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-
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-function TUnitVersion.Summary: string;
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-begin
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- Result := LogPath + #9 + RCSFile + #9 + Revision + #9 + Date;
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- if Extra <> '' then
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- Result := Result + #9 + Extra;
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-end;
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-
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-//=== { TUnitVersioningModule } ==============================================
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-
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-constructor TUnitVersioningModule.Create(AInstance: THandle);
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-begin
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- inherited Create;
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- FInstance := AInstance;
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- FItems := TObjectList.Create;
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-end;
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-
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-destructor TUnitVersioningModule.Destroy;
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-begin
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- FItems.Free;
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- inherited Destroy;
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-end;
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-
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-function TUnitVersioningModule.GetCount: Integer;
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-begin
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- Result := FItems.Count;
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-end;
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-
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-function TUnitVersioningModule.GetItems(Index: Integer): TUnitVersion;
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-begin
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- Result := TUnitVersion(FItems[Index]);
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-end;
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-
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-procedure TUnitVersioningModule.Add(Info: PUnitVersionInfo);
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-begin
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- FItems.Add(TUnitVersion.Create(Info));
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-end;
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-
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-function TUnitVersioningModule.IndexOfInfo(Info: PUnitVersionInfo): Integer;
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-begin
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- for Result := 0 to FItems.Count - 1 do
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- if Items[Result].FInfo = Info then
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- Exit;
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- Result := -1;
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-end;
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-
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-function TUnitVersioningModule.FindUnit(const RCSfile: string; const LogPath: string): TUnitVersion;
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-var
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- Index: Integer;
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-begin
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- Index := IndexOf(RCSfile, LogPath);
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- if Index <> -1 then
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- Result := Items[Index]
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- else
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- Result := nil;
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-end;
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-
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-function TUnitVersioningModule.IndexOf(const RCSfile: string; const LogPath: string): Integer;
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-var
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- Item: TUnitVersion;
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-begin
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- for Result := 0 to FItems.Count - 1 do
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- begin
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- Item := Items[Result];
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- if CompareFilenames(Item.RCSfile, RCSfile) = 0 then
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- if LogPath = '*' then
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- Exit
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- else
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- if CompareFilenames(LogPath, Trim(Item.LogPath)) = 0 then
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- Exit;
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- end;
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- Result := -1;
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-end;
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-
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-//=== { TCustomUnitVersioningProvider } ======================================
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-
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-constructor TCustomUnitVersioningProvider.Create;
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-begin
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- inherited Create;
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-end;
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-
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-procedure TCustomUnitVersioningProvider.LoadModuleUnitVersioningInfo(Instance: THandle);
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-begin
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-//
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-end;
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-
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-procedure TCustomUnitVersioningProvider.ReleaseModuleUnitVersioningInfo(Instance: THandle);
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-begin
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-//
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-end;
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-
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-//=== { TUnitVersioning } ====================================================
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-
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-constructor TUnitVersioning.Create;
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-begin
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- inherited Create;
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- FModules := TObjectList.Create;
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- FProviders := TObjectList.Create;
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-end;
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-
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-destructor TUnitVersioning.Destroy;
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-begin
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- FProviders.Free;
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- FModules.Free;
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- inherited Destroy;
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-end;
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-
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-procedure TUnitVersioning.Add(Instance: THandle; Info: PUnitVersionInfo);
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-var
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- I: Integer;
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- Module: TUnitVersioningModule;
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-begin
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- for I := 0 to FModules.Count - 1 do
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- begin
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- Module := Modules[I];
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- if Module.Instance = Instance then
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- begin
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- if Module.IndexOfInfo(Info) = -1 then
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- Module.Add(Info);
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- Exit;
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- end;
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- end;
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- // create a new module entry
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- Module := TUnitVersioningModule.Create(Instance);
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- FModules.Add(Module);
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- Module.Add(Info);
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-end;
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-
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-procedure TUnitVersioning.UnregisterModule(Instance: THandle);
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-var
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- I: Integer;
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-begin
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- for I := FModules.Count - 1 downto 0 do
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- if Modules[I].Instance = Instance then
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- begin
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- FModules.Delete(I);
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- Break;
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- end;
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- for I := 0 to FProviders.Count -1 do
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- TCustomUnitVersioningProvider(FProviders[I]).ReleaseModuleUnitVersioningInfo(Instance);
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-end;
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-
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-procedure TUnitVersioning.UnregisterModule(Module: TUnitVersioningModule);
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-begin
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- FModules.Remove(Module);
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-end;
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-
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-function TUnitVersioning.GetCount: Integer;
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-var
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- I: Integer;
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-begin
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- Result := 0;
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- ValidateModules;
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- for I := 0 to FModules.Count - 1 do
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- Inc(Result, Modules[I].Count);
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-end;
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-
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-function TUnitVersioning.GetItem(Index: Integer): TUnitVersion;
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-var
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- Cnt, I: Integer;
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- Module: TUnitVersioningModule;
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-begin
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- Result := nil;
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- ValidateModules;
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- Cnt := 0;
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- for I := 0 to FModules.Count - 1 do
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- begin
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- Module := Modules[I];
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- if Index < Cnt + Module.Count then
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- begin
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- Result := Module.Items[Index - Cnt];
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- Break;
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- end;
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- Inc(Cnt, Module.Count);
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- end;
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-end;
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-
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-function TUnitVersioning.GetModuleCount: Integer;
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-begin
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- ValidateModules;
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- Result := FModules.Count;
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-end;
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-
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-function TUnitVersioning.GetModule(Index: Integer): TUnitVersioningModule;
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-begin
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- Result := TUnitVersioningModule(FModules[Index]);
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-end;
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-
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-{$UNDEF FPCUNIX} // Temporary, will move to .inc's in time.
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-{$IFDEF FPC}
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- {$IFDEF UNIX}
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- {$DEFIN FPCUNIX}
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-{$ENDIF}
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-{$ENDIF}
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-
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-procedure TUnitVersioning.ValidateModules;
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-var
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- I: Integer;
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- {$IFNDEF FPCUNIX}
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- Buffer: string;
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- {$ENDIF ~FPCUNIX}
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- Module: TUnitVersioningModule;
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-begin
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- {$IFNDEF FPCUNIX}
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- SetLength(Buffer, 1024);
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- {$ENDIF ~FPCUNIX}
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- for I := FModules.Count - 1 downto 0 do
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- begin
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- Module := Modules[I];
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- {$IFDEF FPCUNIX}
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- if dlsym(Pointer(Module.Instance), '_init') = nil then
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- {$ELSE ~FPCUNIX}
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- if GetModuleFileName(Module.Instance, PChar(Buffer), 1024) = 0 then
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- {$ENDIF ~FPCUNIX}
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- // This module is no more in memory but has not unregistered itself so
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- // unregister it here.
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- UnregisterModule(Module);
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- end;
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-end;
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-
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-function TUnitVersioning.FindUnit(const RCSfile: string; const LogPath: string): TUnitVersion;
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-var
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- I: Integer;
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-begin
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- for I := 0 to FModules.Count - 1 do
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- begin
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- Result := Modules[I].FindUnit(RCSfile, LogPath);
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- if Result <> nil then
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- Exit;
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- end;
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- Result := nil;
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-end;
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-
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-function TUnitVersioning.IndexOf(const RCSfile: string; const LogPath: string): Integer;
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-var
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- I, Cnt, Index: Integer;
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- Module: TUnitVersioningModule;
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-begin
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- Result := -1;
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- Cnt := 0;
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- for I := 0 to FModules.Count - 1 do
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- begin
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- Module := Modules[I];
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- Index := Module.IndexOf(RCSfile, LogPath);
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- if Index <> -1 then
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- begin
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- Result := Cnt + Index;
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- Break;
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- end;
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- Inc(Cnt, Module.Count);
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- end;
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-end;
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-
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-procedure TUnitVersioning.RegisterProvider(AProviderClass: TUnitVersioningProviderClass);
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-var
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- I, Idx: Integer;
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-begin
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- Idx := -1;
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- for I := 0 to FProviders.Count - 1 do
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- if TObject(FProviders[I]).ClassType = AProviderClass then
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- begin
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- Idx := I;
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- Break;
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- end;
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- if Idx = -1 then
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- FProviders.Add(AProviderClass.Create);
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-end;
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-
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-procedure TUnitVersioning.LoadModuleUnitVersioningInfo(Instance: THandle);
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-var
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- I: Integer;
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-begin
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- for I := 0 to FProviders.Count - 1 do
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- TCustomUnitVersioningProvider(FProviders[I]).LoadModuleUnitVersioningInfo(Instance);
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-end;
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-
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-type
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- PUnitVersioning = ^TUnitVersioning;
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-
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-var
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- UnitVersioningOwner: Boolean = False;
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- GlobalUnitVersioning: TUnitVersioning = nil;
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- UnitVersioningNPA: PUnitVersioning = nil;
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- UnitVersioningMutex: TJclMutex;
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- UnitVersioningFinalized: Boolean = False;
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-
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-function GetUnitVersioning: TUnitVersioning;
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-begin
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- if UnitVersioningFinalized then
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- begin
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- Result := nil;
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- Exit;
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- end;
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-
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- if UnitVersioningMutex = nil then
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- UnitVersioningMutex := TJclMutex.Create(nil, False, 'MutexNPA_UnitVersioning_' + IntToStr(GetCurrentProcessId));
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-
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- if GlobalUnitVersioning = nil then
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- begin
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- UnitVersioningMutex.WaitFor(INFINITE);
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- try
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- if UnitVersioningNPA = nil then
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- SharedGetMem(UnitVersioningNPA, 'ShmNPA_UnitVersioning_' + IntToStr(GetCurrentProcessId), SizeOf(TUnitVersioning));
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- if UnitVersioningNPA <> nil then
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- begin
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- GlobalUnitVersioning := UnitVersioningNPA^;
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- if GlobalUnitVersioning = nil then
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- begin
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- GlobalUnitVersioning := TUnitVersioning.Create;
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- UnitVersioningNPA^ := GlobalUnitVersioning;
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- UnitVersioningOwner := True;
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- end;
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- end
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- else
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- begin
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- GlobalUnitVersioning := TUnitVersioning.Create;
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- UnitVersioningOwner := True;
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- end;
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- finally
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- UnitVersioningMutex.Release;
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- end;
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- end
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- else
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- if UnitVersioningNPA <> nil then
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- begin
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- UnitVersioningMutex.WaitFor(INFINITE);
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- try
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- GlobalUnitVersioning := UnitVersioningNPA^; // update (maybe the owner has destroyed the instance)
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- finally
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- UnitVersioningMutex.Release;
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- end;
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- end;
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- Result := GlobalUnitVersioning;
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-end;
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-
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-procedure FinalizeUnitVersioning;
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-begin
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- UnitVersioningFinalized := True;
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- try
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- if UnitVersioningNPA <> nil then
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- SharedCloseMem(UnitVersioningNPA);
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- if (GlobalUnitVersioning <> nil) and UnitVersioningOwner then
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- FreeAndNil(GlobalUnitVersioning)
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- else
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- GlobalUnitVersioning := nil;
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- except
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- // ignore - should never happen
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- end;
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- FreeAndNil(UnitVersioningMutex);
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-end;
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-
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-procedure RegisterUnitVersion(Instance: THandle; const Info: TUnitVersionInfo);
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-var
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- UnitVersioning: TUnitVersioning;
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-begin
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- UnitVersioning := GetUnitVersioning;
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- if Assigned(UnitVersioning) then
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- UnitVersioning.Add(Instance, @Info);
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-end;
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-
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-procedure UnregisterUnitVersion(Instance: THandle);
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-var
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- UnitVersioning: TUnitVersioning;
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-begin
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- UnitVersioning := GetUnitVersioning;
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- if Assigned(UnitVersioning) then
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- UnitVersioning.UnregisterModule(Instance);
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-end;
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-
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-procedure ExportUnitVersioningToFile(iFileName : string);
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-var
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- I: Integer;
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- sl: TStringList;
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-begin
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- sl := TStringList.Create;
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- try
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- for I := 0 to GetUnitVersioning.Count - 1 do
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- sl.Add(GetUnitVersioning.Items[I].Summary);
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- sl.Sort;
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- sl.SaveToFile(iFileName);
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- finally
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- sl.Free;
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- end;
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-end;
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-
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-initialization
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-{$IFDEF UNITVERSIONING}
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- RegisterUnitVersion(HInstance, UnitVersioning);
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-{$ENDIF UNITVERSIONING}
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-
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-finalization
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-{$IFDEF UNITVERSIONING}
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- UnregisterUnitVersion(HInstance);
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-{$ENDIF UNITVERSIONING}
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- FinalizeUnitVersioning;
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-
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-end.
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