@angular-devkit/core
Version:
Angular DevKit - Core Utility Library
133 lines • 15.5 kB
JavaScript
;
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.writeWorkspace = exports.readWorkspace = exports._test_removeWorkspaceFile = exports._test_addWorkspaceFile = exports.WorkspaceFormat = void 0;
const virtual_fs_1 = require("../virtual-fs");
const reader_1 = require("./json/reader");
const writer_1 = require("./json/writer");
const formatLookup = new WeakMap();
/**
* Supported workspace formats
*/
var WorkspaceFormat;
(function (WorkspaceFormat) {
WorkspaceFormat[WorkspaceFormat["JSON"] = 0] = "JSON";
})(WorkspaceFormat = exports.WorkspaceFormat || (exports.WorkspaceFormat = {}));
/**
* @private
*/
function _test_addWorkspaceFile(name, format) {
workspaceFiles[name] = format;
}
exports._test_addWorkspaceFile = _test_addWorkspaceFile;
/**
* @private
*/
function _test_removeWorkspaceFile(name) {
delete workspaceFiles[name];
}
exports._test_removeWorkspaceFile = _test_removeWorkspaceFile;
// NOTE: future additions could also perform content analysis to determine format/version
const workspaceFiles = {
'angular.json': WorkspaceFormat.JSON,
'.angular.json': WorkspaceFormat.JSON,
};
/**
* Reads and constructs a `WorkspaceDefinition`. If the function is provided with a path to a
* directory instead of a file, a search of the directory's files will commence to attempt to
* locate a known workspace file. Currently the following are considered known workspace files:
* - `angular.json`
* - `.angular.json`
*
* @param path The path to either a workspace file or a directory containing a workspace file.
* @param host The `WorkspaceHost` to use to access the file and directory data.
* @param format An optional `WorkspaceFormat` value. Used if the path specifies a non-standard
* file name that would prevent automatically discovering the format.
*
*
* @return An `Promise` of the read result object with the `WorkspaceDefinition` contained within
* the `workspace` property.
*/
async function readWorkspace(path, host, format) {
if (await host.isDirectory(path)) {
// TODO: Warn if multiple found (requires diagnostics support)
const directory = (0, virtual_fs_1.normalize)(path);
let found = false;
for (const [name, nameFormat] of Object.entries(workspaceFiles)) {
if (format !== undefined && format !== nameFormat) {
continue;
}
const potential = (0, virtual_fs_1.getSystemPath)((0, virtual_fs_1.join)(directory, name));
if (await host.isFile(potential)) {
path = potential;
format = nameFormat;
found = true;
break;
}
}
if (!found) {
throw new Error('Unable to locate a workspace file for workspace path. Are you missing an `angular.json`' +
' or `.angular.json` file?');
}
}
else if (format === undefined) {
const filename = (0, virtual_fs_1.basename)((0, virtual_fs_1.normalize)(path));
if (filename in workspaceFiles) {
format = workspaceFiles[filename];
}
}
if (format === undefined) {
throw new Error('Unable to determine format for workspace path.');
}
let workspace;
switch (format) {
case WorkspaceFormat.JSON:
workspace = await (0, reader_1.readJsonWorkspace)(path, host);
break;
default:
throw new Error('Unsupported workspace format.');
}
formatLookup.set(workspace, WorkspaceFormat.JSON);
return { workspace };
}
exports.readWorkspace = readWorkspace;
/**
* Writes a `WorkspaceDefinition` to the underlying storage via the provided `WorkspaceHost`.
* If the `WorkspaceDefinition` was created via the `readWorkspace` function, metadata will be
* used to determine the path and format of the Workspace. In all other cases, the `path` and
* `format` options must be specified as they would be otherwise unknown.
*
* @param workspace The `WorkspaceDefinition` that will be written.
* @param host The `WorkspaceHost` to use to access/write the file and directory data.
* @param path The path to a file location for the output. Required if `readWorkspace` was not
* used to create the `WorkspaceDefinition`. Optional otherwise; will override the
* `WorkspaceDefinition` metadata if provided.
* @param format The `WorkspaceFormat` to use for output. Required if `readWorkspace` was not
* used to create the `WorkspaceDefinition`. Optional otherwise; will override the
* `WorkspaceDefinition` metadata if provided.
*
*
* @return An `Promise` of type `void`.
*/
async function writeWorkspace(workspace, host, path, format) {
if (format === undefined) {
format = formatLookup.get(workspace);
if (format === undefined) {
throw new Error('A format is required for custom workspace objects.');
}
}
switch (format) {
case WorkspaceFormat.JSON:
return (0, writer_1.writeJsonWorkspace)(workspace, host, path);
default:
throw new Error('Unsupported workspace format.');
}
}
exports.writeWorkspace = writeWorkspace;
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If the function is provided with a path to a\n * directory instead of a file, a search of the directory's files will commence to attempt to\n * locate a known workspace file.  Currently the following are considered known workspace files:\n * - `angular.json`\n * - `.angular.json`\n *\n * @param path The path to either a workspace file or a directory containing a workspace file.\n * @param host The `WorkspaceHost` to use to access the file and directory data.\n * @param format An optional `WorkspaceFormat` value. Used if the path specifies a non-standard\n * file name that would prevent automatically discovering the format.\n *\n *\n * @return An `Promise` of the read result object with the `WorkspaceDefinition` contained within\n * the `workspace` property.\n */\nexport async function readWorkspace(\n  path: string,\n  host: WorkspaceHost,\n  format?: WorkspaceFormat,\n  // return type will eventually have a `diagnostics` property as well\n): Promise<{ workspace: WorkspaceDefinition }> {\n  if (await host.isDirectory(path)) {\n    // TODO: Warn if multiple found (requires diagnostics support)\n    const directory = normalize(path);\n    let found = false;\n    for (const [name, nameFormat] of Object.entries(workspaceFiles)) {\n      if (format !== undefined && format !== nameFormat) {\n        continue;\n      }\n\n      const potential = getSystemPath(join(directory, name));\n      if (await host.isFile(potential)) {\n        path = potential;\n        format = nameFormat;\n        found = true;\n        break;\n      }\n    }\n    if (!found) {\n      throw new Error(\n        'Unable to locate a workspace file for workspace path. Are you missing an `angular.json`' +\n          ' or `.angular.json` file?',\n      );\n    }\n  } else if (format === undefined) {\n    const filename = basename(normalize(path));\n    if (filename in workspaceFiles) {\n      format = workspaceFiles[filename];\n    }\n  }\n\n  if (format === undefined) {\n    throw new Error('Unable to determine format for workspace path.');\n  }\n\n  let workspace;\n  switch (format) {\n    case WorkspaceFormat.JSON:\n      workspace = await readJsonWorkspace(path, host);\n      break;\n    default:\n      throw new Error('Unsupported workspace format.');\n  }\n\n  formatLookup.set(workspace, WorkspaceFormat.JSON);\n\n  return { workspace };\n}\n\n/**\n * Writes a `WorkspaceDefinition` to the underlying storage via the provided `WorkspaceHost`.\n * If the `WorkspaceDefinition` was created via the `readWorkspace` function, metadata will be\n * used to determine the path and format of the Workspace.  In all other cases, the `path` and\n * `format` options must be specified as they would be otherwise unknown.\n *\n * @param workspace The `WorkspaceDefinition` that will be written.\n * @param host The `WorkspaceHost` to use to access/write the file and directory data.\n * @param path The path to a file location for the output. Required if `readWorkspace` was not\n * used to create the `WorkspaceDefinition`.  Optional otherwise; will override the\n * `WorkspaceDefinition` metadata if provided.\n * @param format The `WorkspaceFormat` to use for output. Required if `readWorkspace` was not\n * used to create the `WorkspaceDefinition`.  Optional otherwise; will override the\n * `WorkspaceDefinition` metadata if provided.\n *\n *\n * @return An `Promise` of type `void`.\n */\nexport async function writeWorkspace(\n  workspace: WorkspaceDefinition,\n  host: WorkspaceHost,\n  path?: string,\n  format?: WorkspaceFormat,\n): Promise<void> {\n  if (format === undefined) {\n    format = formatLookup.get(workspace);\n    if (format === undefined) {\n      throw new Error('A format is required for custom workspace objects.');\n    }\n  }\n\n  switch (format) {\n    case WorkspaceFormat.JSON:\n      return writeJsonWorkspace(workspace, host, path);\n    default:\n      throw new Error('Unsupported workspace format.');\n  }\n}\n"]}