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This PR does the following: 1. Adds 3 babel plugins to help transform ESM code to CJS: one to transform `path.dirname(fileURLToPath(import.meta)` to `__dirname`, another to turn `isEsm` to false, and lastly a final one to turn proxyquire into esmock. 3. Adds an ESM-path in compileProtos (searches for source code one level deeper, and generates `protos.js` and `protos.cjs` in es6 and amd, respectively)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| // Copyright 2023 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
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| import {Visitor, types} from '@babel/core'; | ||
|
|
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| export interface PluginOptions { | ||
| opts?: { | ||
| fromLibName?: string; | ||
| toLibName?: string; | ||
| }; | ||
| } | ||
|
|
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| export default function replaceESMMockingLib(): { | ||
| visitor: Visitor<PluginOptions>; | ||
| } { | ||
| return { | ||
| visitor: { | ||
| ImportDeclaration(path, state) { | ||
| const opts = state.opts || {}; | ||
| const fromLib = opts.fromLibName || 'esmock'; | ||
| const toLib = opts.toLibName || 'proxyquire'; | ||
| const {node} = path; | ||
|
|
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| node.specifiers.forEach(spec => { | ||
| if (spec.local.name !== fromLib) { | ||
| return; | ||
| } | ||
| spec.local.name = spec.local.name.replace(fromLib, toLib); | ||
| }); | ||
|
|
||
| if (node.source.value !== fromLib) { | ||
| return; | ||
| } | ||
| node.source.value = node.source.value.replace(fromLib, toLib); | ||
| }, | ||
| CallExpression(path, state) { | ||
| const opts = state.opts || {}; | ||
| const fromLib = opts.fromLibName || 'esmock'; | ||
| const toLib = opts.toLibName || 'proxyquire'; | ||
| const {node} = path; | ||
|
|
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| if (types.isIdentifier(node.callee)) { | ||
| if (node.callee.name !== fromLib) { | ||
| return; | ||
| } | ||
|
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| node.callee.name = toLib; | ||
| path.parentPath.replaceWith(types.expressionStatement(node)); | ||
| } | ||
| }, | ||
| }, | ||
| }; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| // Copyright 2023 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
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| // eslint-disable-next-line node/no-extraneous-import | ||
| import {smart} from '@babel/template'; | ||
| import {Statement} from '@babel/types'; | ||
| import {Visitor} from '@babel/core'; | ||
|
|
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| export interface PluginOptions { | ||
| opts?: { | ||
| replacementValue?: string; | ||
| }; | ||
| } | ||
|
|
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| export default function replaceImportMetaUrl(): { | ||
| visitor: Visitor<PluginOptions>; | ||
| } { | ||
| return { | ||
| visitor: { | ||
| CallExpression(path, state) { | ||
| const opts = state.opts || {}; | ||
| const replacementValue = opts.replacementValue || '__dirname'; | ||
| const {node} = path; | ||
| if ( | ||
| node.callee.type === 'MemberExpression' && | ||
| node.callee.property.type === 'Identifier' && | ||
| node.callee.property.name === 'dirname' && | ||
| node.arguments[0].type === 'CallExpression' && | ||
| node.arguments[0].callee.type === 'Identifier' && | ||
| node.arguments[0].callee.name === 'fileURLToPath' && | ||
| node.arguments[0].arguments[0].type === 'MemberExpression' && | ||
| node.arguments[0].arguments[0].object.type === 'MetaProperty' && | ||
| node.arguments[0].arguments[0].object.meta.type === 'Identifier' && | ||
| node.arguments[0].arguments[0].object.meta.name === 'import' && | ||
| node.arguments[0].arguments[0].object.property.type === | ||
| 'Identifier' && | ||
| node.arguments[0].arguments[0].object.property.name === 'meta' && | ||
| node.arguments[0].arguments[0].property.type === 'Identifier' && | ||
| node.arguments[0].arguments[0].property.name === 'url' | ||
| ) { | ||
| const replacement = smart.ast`${replacementValue}` as Statement; | ||
| path.replaceWith(replacement); | ||
| } | ||
| }, | ||
| }, | ||
| }; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,44 @@ | ||
| // Copyright 2023 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| import {Visitor, types} from '@babel/core'; | ||
|
|
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| export interface PluginOptions { | ||
| opts?: { | ||
| variableIdentifier?: string; | ||
| replacementValue?: boolean; | ||
| }; | ||
| } | ||
|
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| export default function toggleESMFlagVariable(): { | ||
| visitor: Visitor<PluginOptions>; | ||
| } { | ||
| return { | ||
| visitor: { | ||
| VariableDeclarator(path, state) { | ||
| const opts = state.opts || {}; | ||
| const variableIdentifier = opts.variableIdentifier || 'isEsm'; | ||
| const replacementValue = opts.replacementValue || false; | ||
| const {node} = path; | ||
| const identifier = node.id as types.Identifier; | ||
| if ( | ||
| identifier.name === variableIdentifier && | ||
| node.init?.type === 'BooleanLiteral' | ||
| ) { | ||
| node.init.value = replacementValue; | ||
| } | ||
| }, | ||
| }, | ||
| }; | ||
| } |
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