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|
unit MySQLCommonFuncs;
interface
uses
gnugettext, SysUtils, AuxFuncs, Windows, Forms, TntRegistry, TntClasses, TntSysUtils;
function GetMySQLCommandLineClientPath: WideString;
function GetMySQLAdministratorCmd: WideString;
function GetMySQLQueryBrowserCmd: WideString;
procedure RegisterMySQLApplication(Name: WideString;
Version: WideString; InstallPath: WideString);
function ScanRegistryForProductVersion(RegMainPath: WideString; RegAppName: WideString;
Key: WideString; KeyType: Integer): WideString;
//----------------------------------------------------------------------------------------------------------------------
implementation
uses
Math;
//----------------------------------------------------------------------------------------------------------------------
function GetMySQLCommandLineClientPath: WideString;
var
InstallDir: WideString;
begin
if(FileExists(GetProgramFilesDir+'MySQL\bin\mysql.exe'))then
Result:=GetProgramFilesDir+'MySQL\bin\mysql.exe'
else if(FileExists('c:\mysql\bin\mysql.exe'))then
Result:='c:\mysql\bin\mysql.exe'
else
begin
InstallDir:=ReadFromReg(HKEY_LOCAL_MACHINE,
'\SOFTWARE\MySQL AB\MySQL Server 4.1', 'Location', 0, '', False);
if(FileExists(IncludeTrailingPathDelimiter(InstallDir)+
'bin\mysql.exe'))then
Result:=IncludeTrailingPathDelimiter(InstallDir)+'bin\mysql.exe'
else
begin
InstallDir:=ReadFromReg(HKEY_LOCAL_MACHINE,
'\SOFTWARE\MySQL AB\MySQL Server 5.0', 'Location', 0, '', False);
if (InstallDir='') then
InstallDir := ScanRegistryForProductVersion('SOFTWARE\MySQL AB', 'MySQL Server', 'Location', 0);
if(FileExists(IncludeTrailingPathDelimiter(InstallDir)+
'bin\mysql.exe'))then
Result:=IncludeTrailingPathDelimiter(InstallDir)+'bin\mysql.exe'
else
Result:='';
end;
end
end;
//----------------------------------------------------------------------------------------------------------------------
function GetMySQLAdministratorCmd: WideString;
var
InstallDir: WideString;
begin
if(FileExists(ExtractFilePath(Application.ExeName)+'MySQLAdministrator.exe'))then
Result:=ExtractFilePath(Application.ExeName)+'MySQLAdministrator.exe'
else
begin
InstallDir:=ReadFromReg(HKEY_LOCAL_MACHINE,
'\SOFTWARE\MySQL AB\MySQL Administrator', 'Location', 0, '', False);
if(FileExists(IncludeTrailingPathDelimiter(InstallDir)+'MySQLAdministrator.exe'))then
Result:=IncludeTrailingPathDelimiter(InstallDir)+'MySQLAdministrator.exe'
else
Result:='';
if(Result='')then
begin
InstallDir:=ReadFromReg(HKEY_LOCAL_MACHINE,
'\SOFTWARE\MySQL AB\MySQL Administrator 1.0', 'Location', 0, '', False);
if (InstallDir='') then
InstallDir := ScanRegistryForProductVersion('SOFTWARE\MySQL AB', 'MySQL Administrator', 'Location', 0);
if(FileExists(IncludeTrailingPathDelimiter(InstallDir)+'MySQLAdministrator.exe'))then
Result:=IncludeTrailingPathDelimiter(InstallDir)+'MySQLAdministrator.exe'
else
Result:='';
end;
end;
end;
//----------------------------------------------------------------------------------------------------------------------
function GetMySQLQueryBrowserCmd: WideString;
var
InstallDir: WideString;
begin
if(FileExists(ExtractFilePath(Application.ExeName)+'MySQLQueryBrowser.exe'))then
Result:=ExtractFilePath(Application.ExeName)+'MySQLQueryBrowser.exe'
else
begin
InstallDir := ReadFromReg(HKEY_LOCAL_MACHINE,
'\SOFTWARE\MySQL AB\MySQL Query Browser', 'Location', 0, '', False);
if(FileExists(IncludeTrailingPathDelimiter(InstallDir)+'MySQLQueryBrowser.exe'))then
Result:=IncludeTrailingPathDelimiter(InstallDir)+'MySQLQueryBrowser.exe'
else
Result:='';
if(Result='')then
begin
InstallDir := ReadFromReg(HKEY_LOCAL_MACHINE,
'\SOFTWARE\MySQL AB\MySQL Query Browser 1.0', 'Location', 0, '', False);
if (InstallDir='') then
InstallDir := ReadFromReg(HKEY_LOCAL_MACHINE,
'\SOFTWARE\MySQL AB\MySQL Query Browser 1.1', 'Location', 0, '', False);
if (InstallDir='') then
InstallDir := ScanRegistryForProductVersion('SOFTWARE\MySQL AB', 'MySQL Query Browser', 'Location', 0);
if(FileExists(IncludeTrailingPathDelimiter(InstallDir)+'MySQLQueryBrowser.exe'))then
Result:=IncludeTrailingPathDelimiter(InstallDir)+'MySQLQueryBrowser.exe'
else
Result:='';
end;
end;
end;
//----------------------------------------------------------------------------------------------------------------------
function GetSubkeyNameByPrefix(RegMainPath: WideString; RegAppName: WideString) : WideString;
var
ParentKey: HKEY;
I: Integer;
NumSubKeys: Integer;
MaxKeySize: Integer;
KeyName: WideString;
KeyLen: Cardinal;
L: Integer;
RegResult: Integer;
begin
Result := '';
if RegOpenKeyExW(HKEY_LOCAL_MACHINE, PWideChar(RegMainPath), 0, KEY_READ, ParentKey) = ERROR_SUCCESS then
begin
if RegQueryInfoKey(ParentKey, nil, nil, nil, @NumSubKeys, @MaxKeySize, nil, nil, nil, nil, nil, nil) = ERROR_SUCCESS then
begin
// Add room for terminating 0.
Inc(MaxKeySize);
L := Length(RegAppName);
SetLength(KeyName, MaxKeySize);
for I := 0 to NumSubKeys - 1 do
begin
KeyLen := MaxKeySize;
RegResult := RegEnumKeyExW(ParentKey, I, PWideChar(KeyName), KeyLen, nil, nil, nil, nil);
if RegResult = ERROR_SUCCESS then
begin
if WideSameText(RegAppName, Copy(KeyName, 1, Min(L, KeyLen))) then
begin
Result := Copy(KeyName, 1, KeyLen);
// Dont break as we are looking for the last key (in the hope the last key is also that with the
// highest version number).
// TODO: either return all installed version of one app or truly compare version numbers and pick the highest one.
end;
end;
end;
end;
end;
end;
//----------------------------------------------------------------------------------------------------------------------
function ScanRegistryForProductVersion(RegMainPath: WideString; RegAppName: WideString; Key: WideString; KeyType: Integer): WideString;
var
FullAppKey: WideString;
// i, j: Integer;
begin
FullAppKey := RegMainPath + '\' + GetSubkeyNameByPrefix(RegMainPath, RegAppName);
Result := ReadFromReg(HKEY_LOCAL_MACHINE, FullAppKey, Key, KeyType, '', False);
// if you're going to uncomment code below notice a bug:
// there's only one break - which breaks to outer loop,
// thus always finding the version with lowest major
// and highest minor numbers
{
Result := '';
for i:=10 downto 1 do
begin
for j:=30 downto 0 do
begin
Result := ReadFromReg(HKEY_LOCAL_MACHINE,
Format(RegMainPath+'\'+RegAppName+' %d.%d', [i, j]),
Key, KeyType, '', False);
if (Result<>'') then
break;
end;
end;
}
end;
//----------------------------------------------------------------------------------------------------------------------
procedure RegisterMySQLApplication(Name: WideString; Version: WideString; InstallPath: WideString);
var
RegVersion: WideString;
KeyName: WideString;
MainVersion: WideString;
p, p2: integer;
begin
MainVersion:='';
p:=Pos('.', Version);
if(p>0)then
begin
p2:=Pos('.', Copy(Version, p+1, Length(Version)));
if(p2>0)then
MainVersion:=Copy(Version, 1, p2+1);
end;
if(MainVersion<>'')then
KeyName:=Name+' '+MainVersion
else
KeyName:=Name;
RegVersion:=ReadFromReg(HKEY_LOCAL_MACHINE,
'\SOFTWARE\MySQL AB\'+KeyName, 'Version', 0, '');
if(RegVersion<>Version)then
begin
WriteToReg(HKEY_LOCAL_MACHINE, '\SOFTWARE\MySQL AB\'+KeyName,
'Version', 0, Version);
WriteToReg(HKEY_LOCAL_MACHINE, '\SOFTWARE\MySQL AB\'+KeyName,
'Location', 0, InstallPath);
end;
end;
//----------------------------------------------------------------------------------------------------------------------
end.
|
