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import * as path from 'path';
import * as commander from 'commander';
import Args from '../interface/Args';
import SceneExporterPlugin from '../interface/SceneExporterPlugin';
import AssetExporterPlugin from '../interface/AssetExporterPlugin';
/**
* Parses CLI argument via process.env and convert to Args type.
*/
export default function parseArgs(): Args {
const packageJson = require('../../package.json');
const spaceSeparatedPaths = (value: string): string[] => {
const parts = [];
const frags = value.split(' ');
for (let i = 0; i < frags.length; i++) {
const frag = frags[i];
Eif (fs.existsSync(frag)) {
parts.push(frag);
} else {
const nextFrag = frags[i + 1];
if (!nextFrag) {
break;
}
frags[i + 1] = `${frag} ${nextFrag}`;
}
}
return parts;
};
commander
.version(packageJson.version)
.option(
'-c, --config [value]',
'config file path'
)
.option(
'-r, --runtime [value]',
'runtime identifier'
)
.option(
'-a, --assetRoot [value]',
'root directory for assets'
)
.option(
'-s, --sceneFiles [value]',
'exporting scene files (space separated)',
spaceSeparatedPaths
)
.option(
'-d, --destDir [value]',
"destination directory default './scene-graph'"
)
.option(
'--assetDestDir [value]',
'asset destination directory default \${DEST}/\${ASSET_NAME_SPACE}'
)
.option(
'--assetNameSpace [value]',
"asset directory name default 'assets'"
)
.option(
'-p, --plugins [value]',
"plugin names (space separated) default ''",
spaceSeparatedPaths
).option(
'--listRuntimes',
'list available runtimes'
)
.parse(process.argv);
// passing option via process.env is deprecated
let config: {
runtime?: string;
assetRoot?: string;
sceneFiles?: string | string[];
destDir?: string;
assetDestDir?: string;
assetNameSpace?: string;
plugins?: string | SceneExporterPlugin | AssetExporterPlugin |
string[] | SceneExporterPlugin[] | AssetExporterPlugin[];
} = {};
let configFilePath = '';
// using -c option
Iif (commander.config) {
const configPath = path.resolve(process.cwd(), commander.config);
const userConfigFactory = require(configPath);
config = userConfigFactory();
if (config.sceneFiles && !Array.isArray(config.sceneFiles)) {
config.sceneFiles = [config.sceneFiles];
}
if (config.plugins && !Array.isArray(config.plugins)) {
const plugin = config.plugins as string | SceneExporterPlugin | AssetExporterPlugin;
config.plugins = [plugin] as string[] | SceneExporterPlugin[] | AssetExporterPlugin[];
}
configFilePath = path.dirname(commander.config);
}
// priority
// cli option > user config > env
const args: Args = {
runtime:
commander.runtime
|| config.runtime
|| process.env.RUNTIME
|| '',
assetRoot:
commander.assetRoot
|| config.assetRoot
|| process.env.ASSET_ROOT
|| '',
sceneFiles:
commander.sceneFiles
|| config.sceneFiles
|| (process.env.SCENE_FILE ? spaceSeparatedPaths(process.env.SCENE_FILE) : []),
destDir:
commander.destDir
|| config.destDir
|| process.env.DEST
|| path.resolve(process.cwd(), 'scene-graph'),
assetDestDir:
commander.assetDestDir
|| config.assetDestDir
|| process.env.ASSET_DEST
|| '',
assetNameSpace:
commander.assetNameSpace
|| config.assetNameSpace
|| process.env.ASSET_NAME_SPACE
|| 'assets',
plugins:
commander.plugins
|| config.plugins
|| (process.env.PLUGINS ? spaceSeparatedPaths(process.env.PLUGINS) : []),
listRuntimes:
commander.listRuntimes
};
Iif (args.listRuntimes) {
return args;
}
Iif (!args.runtime) {
throw new Error('runtime option is required');
}
Iif (!args.assetRoot) {
throw new Error('assetRoot option is required');
}
Iif (args.sceneFiles.length === 0) {
throw new Error('sceneFiles option is required');
}
Iif (!path.isAbsolute(args.assetRoot)) {
args.assetRoot = path.resolve(process.cwd(), configFilePath, args.assetRoot);
}
Iif (!path.isAbsolute(args.destDir)) {
args.destDir = path.resolve(process.cwd(), args.destDir);
}
Eif (args.assetDestDir) {
Iif (!path.isAbsolute(args.assetDestDir)) {
args.assetDestDir = path.resolve(args.destDir, args.assetNameSpace, args.assetDestDir);
}
} else {
args.assetDestDir = path.resolve(args.destDir, args.assetNameSpace);
}
for (let i = 0; i < args.sceneFiles.length; i++) {
const sceneFile = args.sceneFiles[i];
Iif (!path.isAbsolute(sceneFile)) {
args.sceneFiles[i] = path.resolve(process.cwd(), configFilePath, sceneFile);
}
}
args.assetRoot = args.assetRoot.replace(/\/$/, '');
return args;
}
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