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Additional graceful handling for pixi (microsoft#23942)
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In addition to first PR
microsoft#23937

I've been able to repro aggressive errors of 
```
2024-08-12 13:59:21.087 [error] [Error: spawn pixi ENOENT
	at ChildProcess._handle.onexit (node:internal/child_process:286:19)
	at onErrorNT (node:internal/child_process:484:16)
	at process.processTicksAndRejections (node:internal/process/task_queues:82:21)] {
  errno: -2,
  code: 'ENOENT',
  syscall: 'spawn pixi',
  path: 'pixi',
  spawnargs: [ '--version' ]
}
```

```
2024-08-12 13:59:20.794 [error] Reading directory to watch failed [Error: ENOENT: no such file or directory, scandir '/Users/anthonykim/Desktop/vscode-python/.pixi/envs'
	at Object.readdirSync (node:fs:1509:26)
	at t.readdirSync (node:electron/js2c/node_init:2:11418)
	at /Users/anthonykim/.vscode/extensions/ms-python.python-2024.13.2024080901-darwin-arm64/out/client/extension.js:2:583006
	at /Users/anthonykim/.vscode/extensions/ms-python.python-2024.13.2024080901-darwin-arm64/out/client/extension.js:2:583197
	at Array.map (<anonymous>)
	at d.initWatchers (/Users/anthonykim/.vscode/extensions/ms-python.python-2024.13.2024080901-darwin-arm64/out/client/extension.js:2:582915)
	at async d.ensureWatchersReady (/Users/anthonykim/.vscode/extensions/ms-python.python-2024.13.2024080901-darwin-arm64/out/client/extension.js:2:539326)] {
  errno: -2,
  code: 'ENOENT',
  syscall: 'scandir',
  path: '/Users/anthonykim/Desktop/vscode-python/.pixi/envs'
}
```

even when I dont have pixi in my workspace. Changing the log level on
this and adding more wraps around that should give necessary
hint/message when needed without crashing program.

---------

Co-authored-by: Karthik Nadig <[email protected]>
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anthonykim1 and karthiknadig committed Sep 13, 2024
1 parent 7916213 commit 71794f5
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Showing 3 changed files with 14 additions and 12 deletions.
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@
import { IDisposable } from '../../../../common/types';
import { createDeferred, Deferred } from '../../../../common/utils/async';
import { Disposables } from '../../../../common/utils/resourceLifecycle';
import { traceError } from '../../../../logging';
import { traceError, traceWarn } from '../../../../logging';
import { arePathsSame, isVirtualWorkspace } from '../../../common/externalDependencies';
import { getEnvPath } from '../../info/env';
import { BasicEnvInfo, IPythonEnvsIterator, Locator, PythonLocatorQuery } from '../../locator';
Expand Down Expand Up @@ -36,7 +36,11 @@ export abstract class LazyResourceBasedLocator extends Locator<BasicEnvInfo> imp
protected async activate(): Promise<void> {
await this.ensureResourcesReady();
// There is not need to wait for the watchers to get started.
this.ensureWatchersReady().ignoreErrors();
try {
this.ensureWatchersReady();
} catch (ex) {
traceWarn(`Failed to ensure watchers are ready for locator ${this.constructor.name}`, ex);
}
}

public async dispose(): Promise<void> {
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ import * as path from 'path';
import { Uri } from 'vscode';
import { FileChangeType, watchLocationForPattern } from '../../../../common/platform/fileSystemWatcher';
import { sleep } from '../../../../common/utils/async';
import { traceError, traceVerbose } from '../../../../logging';
import { traceVerbose, traceWarn } from '../../../../logging';
import { getEnvironmentDirFromPath } from '../../../common/commonUtils';
import {
PythonEnvStructure,
Expand All @@ -32,13 +32,13 @@ function checkDirWatchable(dirname: string): DirUnwatchableReason {
names = fs.readdirSync(dirname);
} catch (err) {
const exception = err as NodeJS.ErrnoException;
traceError('Reading directory to watch failed', exception);
traceVerbose('Reading directory failed', exception);
if (exception.code === 'ENOENT') {
// Treat a missing directory as unwatchable since it can lead to CPU load issues:
// https://github.com/microsoft/vscode-python/issues/18459
return 'directory does not exist';
}
throw err; // re-throw
return undefined;
}
// The limit here is an educated guess.
if (names.length > 200) {
Expand Down Expand Up @@ -117,7 +117,7 @@ export abstract class FSWatchingLocator extends LazyResourceBasedLocator {
// that might be watched due to a glob are not checked.
const unwatchable = await checkDirWatchable(root);
if (unwatchable) {
traceError(`Dir "${root}" is not watchable (${unwatchable})`);
traceWarn(`Dir "${root}" is not watchable (${unwatchable})`);
return undefined;
}
return root;
Expand Down
10 changes: 4 additions & 6 deletions src/client/pythonEnvironments/common/environmentManagers/pixi.ts
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ import { OSType, getOSType, getUserHomeDir } from '../../../common/utils/platfor
import { exec, getPythonSetting, onDidChangePythonSetting, pathExists, pathExistsSync } from '../externalDependencies';
import { cache } from '../../../common/utils/decorators';
import { isTestExecution } from '../../../common/constants';
import { traceError, traceVerbose, traceWarn } from '../../../logging';
import { traceVerbose, traceWarn } from '../../../logging';
import { OUTPUT_MARKER_SCRIPT } from '../../../common/process/internal/scripts';

export const PIXITOOLPATH_SETTING_KEY = 'pixiToolPath';
Expand Down Expand Up @@ -119,7 +119,7 @@ export class Pixi {
yield customPixiToolPath;
}
} catch (ex) {
traceError(`Failed to get pixi setting`, ex);
traceWarn(`Failed to get pixi setting`, ex);
}

// Check unqualified filename, in case it's on PATH.
Expand Down Expand Up @@ -182,7 +182,7 @@ export class Pixi {
const pixiInfo: PixiInfo = JSON.parse(infoOutput.stdout);
return pixiInfo;
} catch (error) {
traceError(`Failed to get pixi info for ${cwd}`, error);
traceWarn(`Failed to get pixi info for ${cwd}`, error);
return undefined;
}
}
Expand All @@ -199,15 +199,13 @@ export class Pixi {
if (!versionOutput || !versionOutput.stdout) {
return undefined;
}

const versionParts = versionOutput.stdout.split(' ');
if (versionParts.length < 2) {
return undefined;
}

return versionParts[1].trim();
} catch (error) {
traceError(`Failed to get pixi version`, error);
traceVerbose(`Failed to get pixi version`, error);
return undefined;
}
}
Expand Down

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