Kartik Raj (karrtikr) · May 24, 2022 · May 23, 2022
diff --git a/news/2 Fixes/18989.md b/news/2 Fixes/18989.md
@@ -0,0 +1 @@
+Fix error `No such file or directory` on conda activate, and simplify the environment activation code.
diff --git a/src/client/common/terminal/environmentActivationProviders/condaActivationProvider.ts b/src/client/common/terminal/environmentActivationProviders/condaActivationProvider.ts
@@ -81,13 +81,35 @@ export class CondaActivationCommandProvider implements ITerminalActivationComman
             if (versionInfo.minor >= CondaRequiredMinor) {
                 // New version.
                 const interpreterPath = await this.condaService.getInterpreterPathForEnvironment(envInfo);
-                const condaPath = await this.condaService.getCondaFileFromInterpreter(interpreterPath, envInfo.name);
-                if (condaPath) {
-                    const activatePath = path
-                        .join(path.dirname(condaPath), 'activate')
-                        .fileToCommandArgumentForPythonExt();
-                    const firstActivate = this.platform.isWindows ? activatePath : `source ${activatePath}`;
-                    return [firstActivate, `conda activate ${condaEnv.toCommandArgumentForPythonExt()}`];
+                const activatePath = await this.condaService.getActivationScriptFromInterpreter(
+                    interpreterPath,
+                    envInfo.name,
+                );
+                // eslint-disable-next-line camelcase
+                if (activatePath?.path) {
+                    if (this.platform.isWindows) {
+                        return [activatePath.path, `conda activate ${condaEnv.toCommandArgumentForPythonExt()}`];
+                    }
+
+                    const condaInfo = await this.condaService.getCondaInfo();
+
+                    if (
+                        activatePath.type !== 'global' ||
+                        // eslint-disable-next-line camelcase
+                        condaInfo?.conda_shlvl === undefined ||
+                        condaInfo.conda_shlvl === -1
+                    ) {
+                        // activatePath is not the global activate path, or we don't have a shlvl, or it's -1（conda never sourced）.
+                        // and we need to source the activate path.
+                        if (activatePath.path === 'activate') {
+                            return [
+                                `source ${activatePath.path}`,
+                                `conda activate ${condaEnv.toCommandArgumentForPythonExt()}`,
+                            ];
+                        }
+                        return [`source ${activatePath.path} ${condaEnv.toCommandArgumentForPythonExt()}`];
+                    }
+                    return [`conda activate ${condaEnv.toCommandArgumentForPythonExt()}`];
                 }
             }
         }

diff --git a/src/client/interpreter/contracts.ts b/src/client/interpreter/contracts.ts
@@ -8,7 +8,7 @@ import {
     PythonLocatorQuery,
     TriggerRefreshOptions,
 } from '../pythonEnvironments/base/locator';
-import { CondaEnvironmentInfo } from '../pythonEnvironments/common/environmentManagers/conda';
+import { CondaEnvironmentInfo, CondaInfo } from '../pythonEnvironments/common/environmentManagers/conda';
 import { EnvironmentType, PythonEnvironment } from '../pythonEnvironments/info';
 
 export type PythonEnvironmentsChangedEvent = {
@@ -59,10 +59,15 @@ export const ICondaService = Symbol('ICondaService');
  */
 export interface ICondaService {
     getCondaFile(forShellExecution?: boolean): Promise<string>;
+    getCondaInfo(): Promise<CondaInfo | undefined>;
     isCondaAvailable(): Promise<boolean>;
     getCondaVersion(): Promise<SemVer | undefined>;
     getInterpreterPathForEnvironment(condaEnv: CondaEnvironmentInfo): Promise<string | undefined>;
     getCondaFileFromInterpreter(interpreterPath?: string, envName?: string): Promise<string | undefined>;
+    getActivationScriptFromInterpreter(
+        interpreterPath?: string,
+        envName?: string,
+    ): Promise<{ path: string | undefined; type: 'local' | 'global' } | undefined>;
 }
 
 export const IInterpreterService = Symbol('IInterpreterService');

diff --git a/src/client/pythonEnvironments/common/environmentManagers/conda.ts b/src/client/pythonEnvironments/common/environmentManagers/conda.ts
@@ -43,6 +43,7 @@ export type CondaInfo = {
     default_prefix?: string; // eslint-disable-line camelcase
     root_prefix?: string; // eslint-disable-line camelcase
     conda_version?: string; // eslint-disable-line camelcase
+    conda_shlvl?: number; // eslint-disable-line camelcase
 };
 
 type CondaEnvInfo = {

diff --git a/src/client/pythonEnvironments/common/environmentManagers/condaService.ts b/src/client/pythonEnvironments/common/environmentManagers/condaService.ts
@@ -19,6 +19,39 @@ export class CondaService implements ICondaService {
         @inject(IFileSystem) private fileSystem: IFileSystem,
     ) {}
 
+    public async getActivationScriptFromInterpreter(
+        interpreterPath?: string,
+        envName?: string,
+    ): Promise<{ path: string | undefined; type: 'local' | 'global' } | undefined> {
+        const condaPath = await this.getCondaFileFromInterpreter(interpreterPath, envName);
+
+        const activatePath = (condaPath
+            ? path.join(path.dirname(condaPath), 'activate')
+            : 'activate'
+        ).fileToCommandArgumentForPythonExt(); // maybe global activate?
+
+        // try to find the activate script in the global conda root prefix.
+        if (this.platform.isLinux || this.platform.isMac) {
+            const condaInfo = await this.getCondaInfo();
+            // eslint-disable-next-line camelcase
+            if (condaInfo?.root_prefix) {
+                const globalActivatePath = path
+                    // eslint-disable-next-line camelcase
+                    .join(condaInfo.root_prefix, this.platform.virtualEnvBinName, 'activate')
+                    .fileToCommandArgumentForPythonExt();
+
+                if (activatePath === globalActivatePath || !(await this.fileSystem.fileExists(activatePath))) {
+                    return {
+                        path: globalActivatePath,
+                        type: 'global',
+                    };
+                }
+            }
+        }
+
+        return { path: activatePath, type: 'local' }; // return the default activate script wether it exists or not.
+    }
+
     /**
      * Return the path to the "conda file".
      */
@@ -111,7 +144,7 @@ export class CondaService implements ICondaService {
      */
     @cache(60_000)
     // eslint-disable-next-line class-methods-use-this
-    public async _getCondaInfo(): Promise<CondaInfo | undefined> {
+    public async getCondaInfo(): Promise<CondaInfo | undefined> {
         const conda = await Conda.getConda();
         return conda?.getInfo();
     }

diff --git a/src/test/common/terminals/activation.conda.unit.test.ts b/src/test/common/terminals/activation.conda.unit.test.ts
@@ -210,7 +210,17 @@ suite('Terminal Environment Activation conda', () => {
     const interpreterPath = path.join('path', 'to', 'interpreter');
     const environmentName = 'Env';
     const environmentNameHasSpaces = 'Env with spaces';
-    const testsForActivationUsingInterpreterPath = [
+    const testsForActivationUsingInterpreterPath: {
+        testName: string;
+        envName: string;
+        condaScope?: 'global' | 'local';
+        condaInfo?: {
+            // eslint-disable-next-line camelcase
+            conda_shlvl?: number;
+        };
+        expectedResult: string[];
+        isWindows: boolean;
+    }[] = [
         {
             testName:
                 'Activation provides correct activation commands (windows) after 4.4.0 given interpreter path is provided, with no spaces in env name',
@@ -222,7 +232,7 @@ suite('Terminal Environment Activation conda', () => {
             testName:
                 'Activation provides correct activation commands (non-windows) after 4.4.0 given interpreter path is provided, with no spaces in env name',
             envName: environmentName,
-            expectedResult: ['source path/to/activate', 'conda activate Env'],
+            expectedResult: ['source path/to/activate Env'],
             isWindows: false,
         },
         {
@@ -236,7 +246,7 @@ suite('Terminal Environment Activation conda', () => {
             testName:
                 'Activation provides correct activation commands (non-windows) after 4.4.0 given interpreter path is provided, with spaces in env name',
             envName: environmentNameHasSpaces,
-            expectedResult: ['source path/to/activate', 'conda activate "Env with spaces"'],
+            expectedResult: ['source path/to/activate "Env with spaces"'],
             isWindows: false,
         },
         {
@@ -250,7 +260,37 @@ suite('Terminal Environment Activation conda', () => {
             testName:
                 'Activation provides correct activation commands (non-windows) after 4.4.0 given interpreter path is provided, and no env name',
             envName: '',
-            expectedResult: ['source path/to/activate', `conda activate .`],
+            expectedResult: ['source path/to/activate .'],
+            isWindows: false,
+        },
+        {
+            testName:
+                'Activation provides correct activation commands (non-windows) after 4.4.0 given interpreter path is provided, global conda, conda not sourced and with no spaces in env name',
+            envName: environmentName,
+            expectedResult: ['source path/to/activate Env'],
+            condaScope: 'global',
+            isWindows: false,
+        },
+        {
+            testName:
+                'Activation provides correct activation commands (non-windows) after 4.4.0 given interpreter path is provided, global conda, conda sourced and with no spaces in env name',
+            envName: environmentName,
+            expectedResult: ['conda activate Env'],
+            condaInfo: {
+                conda_shlvl: 1,
+            },
+            condaScope: 'global',
+            isWindows: false,
+        },
+        {
+            testName:
+                'Activation provides correct activation commands (non-windows) after 4.4.0 given interpreter path is provided, local conda, conda sourced and with no spaces in env name',
+            envName: environmentName,
+            expectedResult: ['source path/to/activate Env'],
+            condaInfo: {
+                conda_shlvl: 1,
+            },
+            condaScope: 'local',
             isWindows: false,
         },
     ];
@@ -272,13 +312,26 @@ suite('Terminal Environment Activation conda', () => {
             condaService
                 .setup((c) => c.getCondaFileFromInterpreter(TypeMoq.It.isAny(), TypeMoq.It.isAny()))
                 .returns(() => Promise.resolve(interpreterPath));
+            condaService
+                .setup((c) => c.getActivationScriptFromInterpreter(TypeMoq.It.isAny(), TypeMoq.It.isAny()))
+                .returns(() =>
+                    Promise.resolve({
+                        path: path.join(path.dirname(interpreterPath), 'activate').fileToCommandArgumentForPythonExt(),
+                        type: testParams.condaScope ?? 'local',
+                    }),
+                );
+
+            condaService.setup((c) => c.getCondaInfo()).returns(() => Promise.resolve(testParams.condaInfo));
+
+            // getActivationScriptFromInterpreter
 
             const provider = new CondaActivationCommandProvider(
                 condaService.object,
                 platformService.object,
                 configService.object,
                 componentAdapter.object,
             );
+
             const activationCommands = await provider.getActivationCommands(undefined, TerminalShellType.bash);
 
             expect(activationCommands).to.deep.equal(testParams.expectedResult, 'Incorrect Activation command');
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Fix error `No such file or directory` on conda activate, and simplify the environment activation code.