angular-docs-cn/aio/tools/transforms/cli-docs-package/readers/cli-command.js

87 lines
2.9 KiB
JavaScript

/**
* This file reader will pull the contents from a cli command json file
*
* The doc will initially have the form:
* ```
* {
* startingLine: 1,
* ...
* }
* ```
*/
module.exports = function cliCommandFileReader() {
const json5 = require('json5');
return {
name: 'cliCommandFileReader',
defaultPattern: /\.json$/,
getDocs(fileInfo) {
fileInfo.realProjectRelativePath = 'packages/angular/cli/commands/' + fileInfo.relativePath;
try {
const doc = json5.parse(fileInfo.content);
const name = fileInfo.baseName;
const path = `cli/${name}`;
// We return a single element array because content files only contain one document
const result = Object.assign(doc, {
content: doc.description,
docType: 'cli-command',
id: `cli-${doc.name}`,
commandAliases: doc.aliases || [],
aliases: computeAliases(doc), path,
outputPath: `${path}.json`,
breadCrumbs: [
{text: 'CLI', path: 'cli'},
{text: name, path},
]
});
if (doc.longDescription) {
doc.longDescriptionDoc = createLongDescriptionDoc(fileInfo);
}
return [result];
} catch (e) {
throw new Error(
`Failed to read cli command file: "${fileInfo.relativePath}" - ${e.message}`);
}
}
};
function computeAliases(doc) {
return [doc.name].concat(doc.aliases || []).map(alias => `cli-${alias}`);
}
/**
* Synthesize a doc for the CLI command long description, which is used to generate links
* for viewing and editing the long description in GitHub.
*
* The long description is stored in a markdown file that is referenced from the original
* schema file for the command, via the `$longDescription` field. The field is a relative path
* to the markdown file from the schema file.
*
* This function tries to retrieve that original schema based on the file path of the help JSON
* file, which was passed to the `cliCommandFileReader.getDocs()` method.
*/
function createLongDescriptionDoc(fileInfo) {
const path = require('canonical-path');
const fs = require('fs');
const json5 = require('json5');
const schemaJsonPath = path.resolve(fileInfo.basePath, '../commands', fileInfo.relativePath);
try {
const schemaJson = fs.readFileSync(schemaJsonPath);
const schema = json5.parse(schemaJson);
if (schema.$longDescription) {
return {
docType: 'content',
startingLine: 0,
fileInfo: {
realProjectRelativePath:
path.join(path.dirname(fileInfo.realProjectRelativePath), schema.$longDescription)
}
};
}
} catch (e) {
throw new Error(
`Unable to read CLI "$longDescription" info from the schema: "${schemaJsonPath}" - ${e.message}`);
}
}
};