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Enhance environment manager settings updates to avoid unnecessary write to settings.json #1120

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eleanorjboyd merged 2 commits into from
Jan 26, 2026
Merged

Enhance environment manager settings updates to avoid unnecessary write to settings.json #1120

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5a1ed40
Enhance environment manager settings updates to avoid unnecessary wri…
eleanorjboyd Jan 26, 2026
9c1104f
add testing
eleanorjboyd Jan 26, 2026
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134 changes: 115 additions & 19 deletions src/features/settings/settingHelpers.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -129,6 +129,11 @@ export async function setAllManagerSettings(edits: EditAllManagerSettings[]): Pr
workspaces.forEach((es, w) => {
const config = workspace.getConfiguration('python-envs', w);
const overrides = config.get<PythonProjectSettings[]>('pythonProjects', []);
const projectsInspect = config.inspect<PythonProjectSettings[]>('pythonProjects');
const existingProjectsSetting =
projectsInspect?.workspaceFolderValue ?? projectsInspect?.workspaceValue ?? undefined;
const originalOverridesLength = overrides.length;

es.forEach((e) => {
const pwPath = path.normalize(e.project.uri.fsPath);
const index = overrides.findIndex((s) => path.resolve(w.uri.fsPath, s.path) === pwPath);
Expand All @@ -142,33 +147,72 @@ export async function setAllManagerSettings(edits: EditAllManagerSettings[]): Pr
packageManager: e.packageManager,
});
} else {
if (config.get('defaultEnvManager') !== e.envManager) {
// Only write settings if:
// 1. There's already an explicit setting (we're updating it), OR
// 2. The new value is not the implicit fallback (system manager is the fallback)
const isSystemManager = e.envManager === 'ms-python.python:system';
const envManagerInspect = config.inspect<string>('defaultEnvManager');
const hasExplicitEnvManager =
envManagerInspect?.workspaceFolderValue !== undefined ||
envManagerInspect?.workspaceValue !== undefined;

// Write if changing an existing setting, OR if setting to non-system manager
if ((hasExplicitEnvManager || !isSystemManager) && config.get('defaultEnvManager') !== e.envManager) {
promises.push(config.update('defaultEnvManager', e.envManager, ConfigurationTarget.Workspace));
}
if (config.get('defaultPackageManager') !== e.packageManager) {

const pkgManagerInspect = config.inspect<string>('defaultPackageManager');
const hasExplicitPkgManager =
pkgManagerInspect?.workspaceFolderValue !== undefined ||
pkgManagerInspect?.workspaceValue !== undefined;
// For package manager, write if there's an explicit setting OR if env manager is being written
if (
(hasExplicitPkgManager || !isSystemManager) &&
config.get('defaultPackageManager') !== e.packageManager
) {
promises.push(
config.update('defaultPackageManager', e.packageManager, ConfigurationTarget.Workspace),
);
}
}
});
promises.push(
config.update(
'pythonProjects',
overrides,
workspaceFile ? ConfigurationTarget.WorkspaceFolder : ConfigurationTarget.Workspace,
),
);

// Only write pythonProjects if:
// 1. There was already an explicit setting OR
// 2. adding new project entries
const shouldWriteProjects = existingProjectsSetting !== undefined || overrides.length > originalOverridesLength;
if (shouldWriteProjects) {
promises.push(
config.update(
'pythonProjects',
overrides,
workspaceFile ? ConfigurationTarget.WorkspaceFolder : ConfigurationTarget.Workspace,
),
);
}
});

const config = workspace.getConfiguration('python-envs', undefined);
edits
.filter((e) => !e.project)
.forEach((e) => {
if (config.get('defaultEnvManager') !== e.envManager) {
// Only write global settings if:
// 1. There's already an explicit global setting (we're updating it), OR
// 2. The new value is not the implicit fallback (system manager)
const isSystemManager = e.envManager === 'ms-python.python:system';
const envManagerInspect = config.inspect<string>('defaultEnvManager');
const hasExplicitGlobalEnvManager = envManagerInspect?.globalValue !== undefined;

if ((hasExplicitGlobalEnvManager || !isSystemManager) && config.get('defaultEnvManager') !== e.envManager) {
promises.push(config.update('defaultEnvManager', e.envManager, ConfigurationTarget.Global));
}
if (config.get('defaultPackageManager') !== e.packageManager) {

const pkgManagerInspect = config.inspect<string>('defaultPackageManager');
const hasExplicitGlobalPkgManager = pkgManagerInspect?.globalValue !== undefined;
if (
(hasExplicitGlobalPkgManager || !isSystemManager) &&
config.get('defaultPackageManager') !== e.packageManager
) {
promises.push(config.update('defaultPackageManager', e.packageManager, ConfigurationTarget.Global));
}
});
Expand Down Expand Up @@ -211,23 +255,45 @@ export async function setEnvironmentManager(edits: EditEnvManagerSettings[]): Pr
workspaces.forEach((es, w) => {
const config = workspace.getConfiguration('python-envs', w.uri);
const overrides = config.get<PythonProjectSettings[]>('pythonProjects', []);
const projectsInspect = config.inspect<PythonProjectSettings[]>('pythonProjects');
const existingProjectsSetting = projectsInspect?.workspaceValue ?? undefined;
const originalOverridesLength = overrides.length;
let projectsModified = false;

es.forEach((e) => {
const pwPath = path.normalize(e.project.uri.fsPath);
const index = overrides.findIndex((s) => path.resolve(w.uri.fsPath, s.path) === pwPath);
if (index >= 0) {
overrides[index].envManager = e.envManager;
} else if (config.get('defaultEnvManager') !== e.envManager) {
promises.push(config.update('defaultEnvManager', e.envManager, ConfigurationTarget.Workspace));
projectsModified = true;
} else {
// Only write settings if updating existing OR setting non-system manager
const isSystemManager = e.envManager === 'ms-python.python:system';
const envManagerInspect = config.inspect<string>('defaultEnvManager');
const hasExplicitEnvManager = envManagerInspect?.workspaceValue !== undefined;
if ((hasExplicitEnvManager || !isSystemManager) && config.get('defaultEnvManager') !== e.envManager) {
promises.push(config.update('defaultEnvManager', e.envManager, ConfigurationTarget.Workspace));
}
}
});
promises.push(config.update('pythonProjects', overrides, ConfigurationTarget.Workspace));

// Only write pythonProjects if there was an explicit setting or we modified entries
const shouldWriteProjects =
existingProjectsSetting !== undefined || overrides.length > originalOverridesLength || projectsModified;
if (shouldWriteProjects) {
promises.push(config.update('pythonProjects', overrides, ConfigurationTarget.Workspace));
}
});

const config = workspace.getConfiguration('python-envs', undefined);
edits
.filter((e) => !e.project)
.forEach((e) => {
if (config.get('defaultEnvManager') !== e.envManager) {
// Only write global settings if updating existing OR setting non-system manager
const isSystemManager = e.envManager === 'ms-python.python:system';
const envManagerInspect = config.inspect<string>('defaultEnvManager');
const hasExplicitGlobalEnvManager = envManagerInspect?.globalValue !== undefined;
if ((hasExplicitGlobalEnvManager || !isSystemManager) && config.get('defaultEnvManager') !== e.envManager) {
promises.push(config.update('defaultEnvManager', e.envManager, ConfigurationTarget.Global));
}
});
Expand Down Expand Up @@ -273,23 +339,53 @@ export async function setPackageManager(edits: EditPackageManagerSettings[]): Pr
workspaces.forEach((es, w) => {
const config = workspace.getConfiguration('python-envs', w.uri);
const overrides = config.get<PythonProjectSettings[]>('pythonProjects', []);
const projectsInspect = config.inspect<PythonProjectSettings[]>('pythonProjects');
const existingProjectsSetting = projectsInspect?.workspaceValue ?? undefined;
const originalOverridesLength = overrides.length;
let projectsModified = false;

es.forEach((e) => {
const pwPath = path.normalize(e.project.uri.fsPath);
const index = overrides.findIndex((s) => path.resolve(w.uri.fsPath, s.path) === pwPath);
if (index >= 0) {
overrides[index].packageManager = e.packageManager;
} else if (config.get('defaultPackageManager') !== e.packageManager) {
promises.push(config.update('defaultPackageManager', e.packageManager, ConfigurationTarget.Workspace));
projectsModified = true;
} else {
// Only write settings if updating existing OR setting non-default package manager
const isPipManager = e.packageManager === 'ms-python.python:pip';
const pkgManagerInspect = config.inspect<string>('defaultPackageManager');
const hasExplicitPkgManager = pkgManagerInspect?.workspaceValue !== undefined;
if (
(hasExplicitPkgManager || !isPipManager) &&
config.get('defaultPackageManager') !== e.packageManager
) {
promises.push(
config.update('defaultPackageManager', e.packageManager, ConfigurationTarget.Workspace),
);
}
}
});
promises.push(config.update('pythonProjects', overrides, ConfigurationTarget.Workspace));

// Only write pythonProjects if there was an explicit setting or we modified entries
const shouldWriteProjects =
existingProjectsSetting !== undefined || overrides.length > originalOverridesLength || projectsModified;
if (shouldWriteProjects) {
promises.push(config.update('pythonProjects', overrides, ConfigurationTarget.Workspace));
}
});

const config = workspace.getConfiguration('python-envs', undefined);
edits
.filter((e) => !e.project)
.forEach((e) => {
if (config.get('defaultPackageManager') !== e.packageManager) {
// Only write global settings if updating existing OR setting non-default package manager
const isPipManager = e.packageManager === 'ms-python.python:pip';
const pkgManagerInspect = config.inspect<string>('defaultPackageManager');
const hasExplicitGlobalPkgManager = pkgManagerInspect?.globalValue !== undefined;
if (
(hasExplicitGlobalPkgManager || !isPipManager) &&
config.get('defaultPackageManager') !== e.packageManager
) {
promises.push(config.update('defaultPackageManager', e.packageManager, ConfigurationTarget.Global));
}
});
Expand Down