esp-idf/tools/windows/tool_setup/python_page.iss.inc

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2019-04-29 02:36:03 +00:00
{ Copyright 2019 Espressif Systems (Shanghai) PTE LTD
SPDX-License-Identifier: Apache-2.0 }
{ ------------------------------ Page to select Python interpreter ------------------------------ }
#include "python_find_installed.iss.inc"
var
PythonPage: TInputOptionWizardPage;
PythonVersion, PythonPath, PythonExecutablePath: String;
PythonUseExisting: Boolean;
function GetPythonPath(Unused: String): String;
begin
Result := PythonPath;
end;
function PythonInstallRequired(): Boolean;
begin
Result := not PythonUseExisting;
end;
function PythonVersionSupported(Version: String): Boolean;
var
Major, Minor: Integer;
begin
Result := False;
if not VersionExtractMajorMinor(Version, Major, Minor) then
begin
Log('PythonVersionSupported: Could not parse version=' + Version);
exit;
end;
if (Major = 2) and (Minor = 7) then Result := True;
if (Major = 3) and (Minor >= 5) then Result := True;
end;
procedure OnPythonPagePrepare(Sender: TObject);
var
Page: TInputOptionWizardPage;
FullName: String;
i, Index, FirstEnabledIndex: Integer;
OfferToInstall: Boolean;
VersionToInstall: String;
VersionSupported: Boolean;
begin
Page := TInputOptionWizardPage(Sender);
Log('OnPythonPagePrepare');
if Page.CheckListBox.Items.Count > 0 then
exit;
FindInstalledPythonVersions();
VersionToInstall := '{#PythonVersion}';
OfferToInstall := True;
FirstEnabledIndex := -1;
for i := 0 to InstalledPythonVersions.Count - 1 do
begin
VersionSupported := PythonVersionSupported(InstalledPythonVersions[i]);
FullName := InstalledPythonDisplayNames.Strings[i];
if not VersionSupported then
begin
FullName := FullName + ' (unsupported)';
end;
FullName := FullName + #13#10 + InstalledPythonExecutables.Strings[i];
Index := Page.Add(FullName);
if not VersionSupported then
begin
Page.CheckListBox.ItemEnabled[Index] := False;
end else begin
if FirstEnabledIndex < 0 then FirstEnabledIndex := Index;
end;
if InstalledPythonVersions[i] = VersionToInstall then
begin
OfferToInstall := False;
end;
end;
if OfferToInstall then
begin
Index := Page.Add('Install Python ' + VersionToInstall);
if FirstEnabledIndex < 0 then FirstEnabledIndex := Index;
end;
Page.SelectedValueIndex := FirstEnabledIndex;
end;
procedure OnPythonSelectionChange(Sender: TObject);
var
Page: TInputOptionWizardPage;
begin
Page := TInputOptionWizardPage(Sender);
Log('OnPythonSelectionChange index=' + IntToStr(Page.SelectedValueIndex));
end;
function OnPythonPageValidate(Sender: TWizardPage): Boolean;
var
Page: TInputOptionWizardPage;
begin
Page := TInputOptionWizardPage(Sender);
Log('OnPythonPageValidate index=' + IntToStr(Page.SelectedValueIndex));
if Page.SelectedValueIndex < InstalledPythonExecutables.Count then
begin
PythonUseExisting := True;
PythonExecutablePath := InstalledPythonExecutables[Page.SelectedValueIndex];
PythonPath := ExtractFilePath(PythonExecutablePath);
PythonVersion := InstalledPythonVersions[Page.SelectedValueIndex];
end else begin
PythonUseExisting := False;
PythonExecutablePath := '';
PythonPath := '';
PythonVersion := '{#PythonVersion}';
end;
Log('OnPythonPageValidate: PythonPath='+PythonPath+' PythonExecutablePath='+PythonExecutablePath);
Result := True;
end;
procedure PythonExecutablePathUpdateAfterInstall();
var
Version, DisplayName, ExecutablePath: String;
begin
if not GetPythonVersionInfoFromKey(
HKEY_CURRENT_USER, 'Software\Python', 'PythonCore', '{#PythonVersion}',
Version, DisplayName, ExecutablePath) then
begin
Log('Failed to find ExecutablePath for the installed copy of Python');
exit;
end;
Log('Found ExecutablePath for ' + DisplayName + ': ' + ExecutablePath);
PythonExecutablePath := ExecutablePath;
PythonPath := ExtractFilePath(PythonExecutablePath);
Log('PythonExecutablePathUpdateAfterInstall: PythonPath='+PythonPath+' PythonExecutablePath='+PythonExecutablePath);
end;
<event('InitializeWizard')>
procedure CreatePythonPage();
begin
PythonPage := ChoicePageCreate(
wpLicense,
'Python choice', 'Please choose Python version',
'Available Python versions',
'',
False,
@OnPythonPagePrepare,
@OnPythonSelectionChange,
@OnPythonPageValidate);
end;