#13286

Committed 21 Nov 2024 03:03PM UTC coverage: 88.232% (-0.9%) from 89.088%

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push

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Commit Message

0.68.0

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71.02

/src/ProgramBuilder.ts

import * as debounce from 'debounce-promise';
import * as path from 'path';
import { rokuDeploy } from 'roku-deploy';
import type { LogLevel as RokuDeployLogLevel } from 'roku-deploy/dist/Logger';
import type { BsConfig, FinalizedBsConfig } from './BsConfig';
import type { BscFile, BsDiagnostic, FileObj, FileResolver } from './interfaces';
import { Program } from './Program';
import { standardizePath as s, util } from './util';
import { Watcher } from './Watcher';
import { DiagnosticSeverity } from 'vscode-languageserver';
import { LogLevel, createLogger } from './logging';
import PluginInterface from './PluginInterface';
import * as diagnosticUtils from './diagnosticUtils';
import * as fsExtra from 'fs-extra';
import * as requireRelative from 'require-relative';
import { Throttler } from './Throttler';
import { URI } from 'vscode-uri';

/**
 * A runner class that handles
 */
export class ProgramBuilder {

    public constructor() {
        //add the default file resolver (used to load source file contents).
        this.addFileResolver((filePath) => {
            return fsExtra.readFile(filePath).then((value) => {
                return value.toString();
            });
        });
    }
    /**
     * Determines whether the console should be cleared after a run (true for cli, false for languageserver)
     */
    public allowConsoleClearing = true;

    public options: FinalizedBsConfig = util.normalizeConfig({});
    private isRunning = false;
    private watcher: Watcher | undefined;
    public program: Program | undefined;
    public logger = createLogger();
    public plugins: PluginInterface = new PluginInterface([], { logger: this.logger });
    private fileResolvers = [] as FileResolver[];

    public addFileResolver(fileResolver: FileResolver) {
        this.fileResolvers.push(fileResolver);
    }

    /**
     * Get the contents of the specified file as a string.
     * This walks backwards through the file resolvers until we get a value.
     * This allow the language server to provide file contents directly from memory.
     */
    public async getFileContents(srcPath: string) {
        srcPath = s`${srcPath}`;
        let reversedResolvers = [...this.fileResolvers].reverse();
        for (let fileResolver of reversedResolvers) {
            let result = await fileResolver(srcPath);
            if (typeof result === 'string') {
                return result;
            }
        }
        throw new Error(`Could not load file "${srcPath}"`);
    }

    /**
     * A list of diagnostics that are always added to the `getDiagnostics()` call.
     */
    private staticDiagnostics = [] as BsDiagnostic[];

    public addDiagnostic(srcPath: string, diagnostic: Partial<BsDiagnostic>) {
        if (!this.program) {
            throw new Error('Cannot call `ProgramBuilder.addDiagnostic` before `ProgramBuilder.run()`');
        }
        let file: BscFile | undefined = this.program.getFile(srcPath);
        if (!file) {
            file = {
                pkgPath: this.program.getPkgPath(srcPath),
                pathAbsolute: srcPath, //keep this for backwards-compatibility. TODO remove in v1
                srcPath: srcPath,
                getDiagnostics: () => {
                    return [<any>diagnostic];
                }
            } as BscFile;
        }
        diagnostic.file = file;
        this.staticDiagnostics.push(<any>diagnostic);
    }

    public getDiagnostics() {
        return [
            ...this.staticDiagnostics,
            ...(this.program?.getDiagnostics() ?? [])
        ];
    }

    public async run(options: BsConfig) {
        if (options?.logLevel) {
            this.logger.logLevel = options.logLevel;
        }

        if (this.isRunning) {
            throw new Error('Server is already running');
        }
        this.isRunning = true;
        try {
            this.options = util.normalizeAndResolveConfig(options);
            if (this.options.noProject) {
                this.logger.log(`'no-project' flag is set so bsconfig.json loading is disabled'`);
            } else if (this.options.project) {
                this.logger.log(`Using config file: "${this.options.project}"`);
            } else {
                this.logger.log(`No bsconfig.json file found, using default options`);
            }
            this.loadRequires();
            this.loadPlugins();
        } catch (e: any) {
            if (e?.file && e.message && e.code) {
                let err = e as BsDiagnostic;
                this.staticDiagnostics.push(err);
            } else {
                //if this is not a diagnostic, something else is wrong...
                throw e;
            }
            this.printDiagnostics();

            //we added diagnostics, so hopefully that draws attention to the underlying issues.
            //For now, just use a default options object so we have a functioning program
            this.options = util.normalizeConfig({});
        }
        this.logger.logLevel = this.options.logLevel;

        this.createProgram();

        //parse every file in the entire project
        await this.loadAllFilesAST();

        if (this.options.watch) {
            this.logger.log('Starting compilation in watch mode...');
            await this.runOnce();
            this.enableWatchMode();
        } else {
            await this.runOnce();
        }
    }

    protected createProgram() {
        this.program = new Program(this.options, this.logger, this.plugins);

        this.plugins.emit('afterProgramCreate', this.program);

        return this.program;
    }

    protected loadPlugins() {
        const cwd = this.options.cwd ?? process.cwd();
        const plugins = util.loadPlugins(
            cwd,
            this.options.plugins ?? [],
            (pathOrModule, err) => this.logger.error(`Error when loading plugin '${pathOrModule}':`, err)
        );
        this.logger.log(`Loading ${this.options.plugins?.length ?? 0} plugins for cwd "${cwd}"`);
        for (let plugin of plugins) {
            this.plugins.add(plugin);
        }

        this.plugins.emit('beforeProgramCreate', this);
    }

    /**
     * `require()` every options.require path
     */
    protected loadRequires() {
        for (const dep of this.options.require ?? []) {
            requireRelative(dep, this.options.cwd);
        }
    }

    private clearConsole() {
        if (this.allowConsoleClearing) {
            util.clearConsole();
        }
    }

    /**
     * A handle for the watch mode interval that keeps the process alive.
     * We need this so we can clear it if the builder is disposed
     */
    private watchInterval: NodeJS.Timer | undefined;

    public enableWatchMode() {
        this.watcher = new Watcher(this.options);
        if (this.watchInterval) {
            clearInterval(this.watchInterval);
        }
        //keep the process alive indefinitely by setting an interval that runs once every 12 days
        this.watchInterval = setInterval(() => { }, 1073741824);

        //clear the console
        this.clearConsole();

        let fileObjects = rokuDeploy.normalizeFilesArray(this.options.files ? this.options.files : []);

        //add each set of files to the file watcher
        for (let fileObject of fileObjects) {
            let src = typeof fileObject === 'string' ? fileObject : fileObject.src;
            this.watcher.watch(src);
        }

        this.logger.log('Watching for file changes...');

        let debouncedRunOnce = debounce(async () => {
            this.logger.log('File change detected. Starting incremental compilation...');
            await this.runOnce();
            this.logger.log(`Watching for file changes.`);
        }, 50);

        //on any file watcher event
        this.watcher.on('all', async (event: string, thePath: string) => { //eslint-disable-line @typescript-eslint/no-misused-promises
            if (!this.program) {
                throw new Error('Internal invariant exception: somehow file watcher ran before `ProgramBuilder.run()`');
            }
            thePath = s`${path.resolve(this.rootDir, thePath)}`;
            if (event === 'add' || event === 'change') {
                const fileObj = {
                    src: thePath,
                    dest: rokuDeploy.getDestPath(
                        thePath,
                        this.program.options.files,
                        //some shells will toTowerCase the drive letter, so do it to rootDir for consistency
                        util.driveLetterToLower(this.rootDir)
                    )
                };
                this.program.setFile(
                    fileObj,
                    await this.getFileContents(fileObj.src)
                );
            } else if (event === 'unlink') {
                this.program.removeFile(thePath);
            }
            //wait for change events to settle, and then execute `run`
            await debouncedRunOnce();
        });
    }

    /**
     * The rootDir for this program.
     */
    public get rootDir() {
        if (!this.program) {
            throw new Error('Cannot access `ProgramBuilder.rootDir` until after `ProgramBuilder.run()`');
        }
        return this.program.options.rootDir;
    }

    /**
     * A method that is used to cancel a previous run task.
     * Does nothing if previous run has completed or was already canceled
     */
    private cancelLastRun = () => {
        return Promise.resolve();
    };

    /**
     * Run the entire process exactly one time.
     */
    private runOnce() {
        //clear the console
        this.clearConsole();
        let cancellationToken = { isCanceled: false };
        //wait for the previous run to complete
        let runPromise = this.cancelLastRun().then(() => {
            //start the new run
            return this._runOnce(cancellationToken);
        }) as any;

        //a function used to cancel this run
        this.cancelLastRun = () => {
            cancellationToken.isCanceled = true;
            return runPromise;
        };
        return runPromise;
    }

    private printDiagnostics(diagnostics?: BsDiagnostic[]) {
        if (this.options?.showDiagnosticsInConsole === false) {
            return;
        }
        if (!diagnostics) {
            diagnostics = this.getDiagnostics();
        }

        //group the diagnostics by file
        let diagnosticsByFile = {} as Record<string, BsDiagnostic[]>;
        for (let diagnostic of diagnostics) {
            if (!diagnosticsByFile[diagnostic.file.srcPath]) {
                diagnosticsByFile[diagnostic.file.srcPath] = [];
            }
            diagnosticsByFile[diagnostic.file.srcPath].push(diagnostic);
        }

        //get printing options
        const options = diagnosticUtils.getPrintDiagnosticOptions(this.options);
        const { cwd, emitFullPaths } = options;

        let srcPaths = Object.keys(diagnosticsByFile).sort();
        for (let srcPath of srcPaths) {
            let diagnosticsForFile = diagnosticsByFile[srcPath];
            //sort the diagnostics in line and column order
            let sortedDiagnostics = diagnosticsForFile.sort((a, b) => {
                return (
                    (a.range?.start.line ?? -1) - (b.range?.start.line ?? -1) ||
                    (a.range?.start.character ?? -1) - (b.range?.start.character ?? -1)
                );
            });

            let filePath = srcPath;
            if (!emitFullPaths) {
                filePath = path.relative(cwd, filePath);
            }
            //load the file text
            const file = this.program?.getFile(srcPath);
            //get the file's in-memory contents if available
            const lines = file?.fileContents?.split(/\r?\n/g) ?? [];

            for (let diagnostic of sortedDiagnostics) {
                //default the severity to error if undefined
                let severity = typeof diagnostic.severity === 'number' ? diagnostic.severity : DiagnosticSeverity.Error;
                let relatedInformation = (diagnostic.relatedInformation ?? []).map(x => {
                    let relatedInfoFilePath = URI.parse(x.location.uri).fsPath;
                    if (!emitFullPaths) {
                        relatedInfoFilePath = path.relative(cwd, relatedInfoFilePath);
                    }
                    return {
                        filePath: relatedInfoFilePath,
                        range: x.location.range,
                        message: x.message
                    };
                });
                //format output
                diagnosticUtils.printDiagnostic(options, severity, filePath, lines, diagnostic, relatedInformation);
            }
        }
    }

    /**
     * Run the process once, allowing cancelability.
     * NOTE: This should only be called by `runOnce`.
     */
    private async _runOnce(cancellationToken: { isCanceled: any }) {
        let wereDiagnosticsPrinted = false;
        try {
            //maybe cancel?
            if (cancellationToken.isCanceled === true) {
                return -1;
            }
            //validate program
            this.validateProject();

            //maybe cancel?
            if (cancellationToken.isCanceled === true) {
                return -1;
            }

            const diagnostics = this.getDiagnostics();
            this.printDiagnostics(diagnostics);
            wereDiagnosticsPrinted = true;
            let errorCount = diagnostics.filter(x => x.severity === DiagnosticSeverity.Error).length;

            if (errorCount > 0) {
                this.logger.log(`Found ${errorCount} ${errorCount === 1 ? 'error' : 'errors'}`);
                return errorCount;
            }

            //create the deployment package (and transpile as well)
            await this.createPackageIfEnabled();

            //maybe cancel?
            if (cancellationToken.isCanceled === true) {
                return -1;
            }

            //deploy the package
            await this.deployPackageIfEnabled();

            return 0;
        } catch (e) {
            if (wereDiagnosticsPrinted === false) {
                this.printDiagnostics();
            }
            throw e;
        }
    }

    private async createPackageIfEnabled() {
        if (this.options.copyToStaging || this.options.createPackage || this.options.deploy) {

            //transpile the project
            await this.transpile();

            //create the zip file if configured to do so
            if (this.options.createPackage !== false || this.options.deploy) {
                await this.logger.time(LogLevel.log, [`Creating package at ${this.options.outFile}`], async () => {
                    await rokuDeploy.zipPackage({
                        ...this.options,
                        logLevel: this.options.logLevel as unknown as RokuDeployLogLevel,
                        outDir: util.getOutDir(this.options),
                        outFile: path.basename(this.options.outFile)
                    });
                });
            }
        }
    }

    private transpileThrottler = new Throttler(0);
    /**
     * Transpiles the entire program into the staging folder
     */
    public async transpile() {
        await this.transpileThrottler.run(async () => {
            let options = util.cwdWork(this.options.cwd, () => {
                return rokuDeploy.getOptions({
                    ...this.options,
                    logLevel: this.options.logLevel as unknown as RokuDeployLogLevel,
                    outDir: util.getOutDir(this.options),
                    outFile: path.basename(this.options.outFile)

                    //rokuDeploy's return type says all its fields can be nullable, but it sets values for all of them.
                }) as any as Required<ReturnType<typeof rokuDeploy.getOptions>>;
            });

            //get every file referenced by the files array
            let fileMap = await rokuDeploy.getFilePaths(options.files, options.rootDir);

            //remove files currently loaded in the program, we will transpile those instead (even if just for source maps)
            let filteredFileMap = [] as FileObj[];

            for (let fileEntry of fileMap) {
                if (this.program!.hasFile(fileEntry.src) === false) {
                    filteredFileMap.push(fileEntry);
                }
            }

            this.plugins.emit('beforePrepublish', this, filteredFileMap);

            await this.logger.time(LogLevel.log, ['Copying to staging directory'], async () => {
                //prepublish all non-program-loaded files to staging
                await rokuDeploy.prepublishToStaging({
                    ...options,
                    files: filteredFileMap
                });
            });

            this.plugins.emit('afterPrepublish', this, filteredFileMap);
            this.plugins.emit('beforePublish', this, fileMap);

            await this.logger.time(LogLevel.log, ['Transpiling'], async () => {
                //transpile any brighterscript files
                await this.program!.transpile(fileMap, options.stagingDir);
            });

            this.plugins.emit('afterPublish', this, fileMap);
        });
    }

    private async deployPackageIfEnabled() {
        //deploy the project if configured to do so
        if (this.options.deploy) {
            await this.logger.time(LogLevel.log, ['Deploying package to', this.options.host], async () => {
                await rokuDeploy.publish({
                    ...this.options,
                    logLevel: this.options.logLevel as unknown as RokuDeployLogLevel,
                    outDir: util.getOutDir(this.options),
                    outFile: path.basename(this.options.outFile)
                });
            });
        }
    }

    /**
     * Parse and load the AST for every file in the project
     */
    private async loadAllFilesAST() {
        await this.logger.time(LogLevel.log, ['Parsing files'], async () => {
            let files = await this.logger.time(LogLevel.debug, ['getFilePaths'], async () => {
                return util.getFilePaths(this.options);
            });
            this.logger.trace('ProgramBuilder.loadAllFilesAST() files:', files);

            const typedefFiles = [] as FileObj[];
            const sourceFiles = [] as FileObj[];
            let manifestFile: FileObj | null = null;

            for (const file of files) {
                // source files (.brs, .bs, .xml)
                if (/(?<!\.d)\.(bs|brs|xml)$/i.test(file.dest)) {
                    sourceFiles.push(file);

                    // typedef files (.d.bs)
                } else if (/\.d\.bs$/i.test(file.dest)) {
                    typedefFiles.push(file);

                    // manifest file
                } else if (/^manifest$/i.test(file.dest)) {
                    manifestFile = file;
                }
            }

            if (manifestFile) {
                this.program!.loadManifest(manifestFile, false);
            }

            const loadFile = async (fileObj) => {
                try {
                    this.program!.setFile(fileObj, await this.getFileContents(fileObj.src));
                } catch (e) {
                    this.logger.log(e); // log the error, but don't fail this process because the file might be fixable later
                }
            };
            await Promise.all(typedefFiles.map(loadFile)); // preload every type definition file, which eliminates duplicate file loading
            await Promise.all(sourceFiles.map(loadFile)); // parse source files
        });
    }

    /**
     * Remove all files from the program that are in the specified folder path
     * @param srcPath the path to the
     */
    public removeFilesInFolder(srcPath: string) {
        for (let filePath in this.program.files) {
            //if the file path starts with the parent path and the file path does not exactly match the folder path
            if (filePath.startsWith(srcPath) && filePath !== srcPath) {
                this.program.removeFile(filePath);
            }
        }
    }

    /**
     * Scan every file and resolve all variable references.
     * If no errors were encountered, return true. Otherwise return false.
     */
    private validateProject() {
        this.program.validate();
    }

    public dispose() {
        if (this.watcher) {
            this.watcher.dispose();
        }
        if (this.program) {
            this.program.dispose?.();
        }
        if (this.watchInterval) {
            clearInterval(this.watchInterval);
        }
    }
}

1	import * as debounce from 'debounce-promise';	1✔
2	import * as path from 'path';	1✔
3	import { rokuDeploy } from 'roku-deploy';	1✔
4	import type { LogLevel as RokuDeployLogLevel } from 'roku-deploy/dist/Logger';
5	import type { BsConfig, FinalizedBsConfig } from './BsConfig';
6	import type { BscFile, BsDiagnostic, FileObj, FileResolver } from './interfaces';
7	import { Program } from './Program';	1✔
8	import { standardizePath as s, util } from './util';	1✔
9	import { Watcher } from './Watcher';	1✔
10	import { DiagnosticSeverity } from 'vscode-languageserver';	1✔
11	import { LogLevel, createLogger } from './logging';	1✔
12	import PluginInterface from './PluginInterface';	1✔
13	import * as diagnosticUtils from './diagnosticUtils';	1✔
14	import * as fsExtra from 'fs-extra';	1✔
15	import * as requireRelative from 'require-relative';	1✔
16	import { Throttler } from './Throttler';	1✔
17	import { URI } from 'vscode-uri';	1✔
18
19	/**
20	* A runner class that handles
21	*/
22	export class ProgramBuilder {	1✔
23
24	public constructor() {
25	//add the default file resolver (used to load source file contents).
26	this.addFileResolver((filePath) => {	59✔
27	return fsExtra.readFile(filePath).then((value) => {	23✔
28	return value.toString();	23✔
29	});
30	});
31	}
32	/**
33	* Determines whether the console should be cleared after a run (true for cli, false for languageserver)
34	*/
35	public allowConsoleClearing = true;	59✔
36
37	public options: FinalizedBsConfig = util.normalizeConfig({});	59✔
38	private isRunning = false;	59✔
39	private watcher: Watcher \| undefined;
40	public program: Program \| undefined;
41	public logger = createLogger();	59✔
42	public plugins: PluginInterface = new PluginInterface([], { logger: this.logger });	59✔
43	private fileResolvers = [] as FileResolver[];	59✔
44
45	public addFileResolver(fileResolver: FileResolver) {
46	this.fileResolvers.push(fileResolver);	94✔
47	}
48
49	/**
50	* Get the contents of the specified file as a string.
51	* This walks backwards through the file resolvers until we get a value.
52	* This allow the language server to provide file contents directly from memory.
53	*/
54	public async getFileContents(srcPath: string) {
55	srcPath = s`${srcPath}`;	23✔
56	let reversedResolvers = [...this.fileResolvers].reverse();	23✔
57	for (let fileResolver of reversedResolvers) {	23✔
58	let result = await fileResolver(srcPath);	43✔
59	if (typeof result === 'string') {	43✔
60	return result;	23✔
61	}
62	}
63	throw new Error(`Could not load file "${srcPath}"`);	×
64	}
65
66	/**
67	* A list of diagnostics that are always added to the `getDiagnostics()` call.
68	*/
69	private staticDiagnostics = [] as BsDiagnostic[];	59✔
70
71	public addDiagnostic(srcPath: string, diagnostic: Partial<BsDiagnostic>) {
72	if (!this.program) {	×
73	throw new Error('Cannot call `ProgramBuilder.addDiagnostic` before `ProgramBuilder.run()`');	×
74	}
75	let file: BscFile \| undefined = this.program.getFile(srcPath);	×
76	if (!file) {	×
77	file = {	×
78	pkgPath: this.program.getPkgPath(srcPath),
79	pathAbsolute: srcPath, //keep this for backwards-compatibility. TODO remove in v1
80	srcPath: srcPath,
81	getDiagnostics: () => {
82	return [<any>diagnostic];	×
83	}
84	} as BscFile;
85	}
86	diagnostic.file = file;	×
87	this.staticDiagnostics.push(<any>diagnostic);	×
88	}
89
90	public getDiagnostics() {
91	return [	105✔
92	...this.staticDiagnostics,
93	...(this.program?.getDiagnostics() ?? [])	630!
94	];
95	}
96
97	public async run(options: BsConfig) {
98	if (options?.logLevel) {	44✔
99	this.logger.logLevel = options.logLevel;	2✔
100	}
101
102	if (this.isRunning) {	44!
103	throw new Error('Server is already running');	×
104	}
105	this.isRunning = true;	44✔
106	try {	44✔
107	this.options = util.normalizeAndResolveConfig(options);	44✔
108	if (this.options.noProject) {	43!
109	this.logger.log(`'no-project' flag is set so bsconfig.json loading is disabled'`);	×
110	} else if (this.options.project) {	43✔
111	this.logger.log(`Using config file: "${this.options.project}"`);	9✔
112	} else {
113	this.logger.log(`No bsconfig.json file found, using default options`);	34✔
114	}
115	this.loadRequires();	43✔
116	this.loadPlugins();	43✔
117	} catch (e: any) {
118	if (e?.file && e.message && e.code) {	1!
119	let err = e as BsDiagnostic;	1✔
120	this.staticDiagnostics.push(err);	1✔
121	} else {
122	//if this is not a diagnostic, something else is wrong...
123	throw e;	×
124	}
125	this.printDiagnostics();	1✔
126
127	//we added diagnostics, so hopefully that draws attention to the underlying issues.
128	//For now, just use a default options object so we have a functioning program
129	this.options = util.normalizeConfig({});	1✔
130	}
131	this.logger.logLevel = this.options.logLevel;	44✔
132
133	this.createProgram();	44✔
134
135	//parse every file in the entire project
136	await this.loadAllFilesAST();	44✔
137
138	if (this.options.watch) {	44!
139	this.logger.log('Starting compilation in watch mode...');	×
140	await this.runOnce();	×
141	this.enableWatchMode();	×
142	} else {
143	await this.runOnce();	44✔
144	}
145	}
146
147	protected createProgram() {
148	this.program = new Program(this.options, this.logger, this.plugins);	45✔
149
150	this.plugins.emit('afterProgramCreate', this.program);	45✔
151
152	return this.program;	45✔
153	}
154
155	protected loadPlugins() {
156	const cwd = this.options.cwd ?? process.cwd();	43!
157	const plugins = util.loadPlugins(	43✔
158	cwd,
159	this.options.plugins ?? [],	129!
160	(pathOrModule, err) => this.logger.error(`Error when loading plugin '${pathOrModule}':`, err)	×
161	);
162	this.logger.log(`Loading ${this.options.plugins?.length ?? 0} plugins for cwd "${cwd}"`);	43!
163	for (let plugin of plugins) {	43✔
164	this.plugins.add(plugin);	×
165	}
166
167	this.plugins.emit('beforeProgramCreate', this);	43✔
168	}
169
170	/**
171	* `require()` every options.require path
172	*/
173	protected loadRequires() {
174	for (const dep of this.options.require ?? []) {	43✔
175	requireRelative(dep, this.options.cwd);	2✔
176	}
177	}
178
179	private clearConsole() {
180	if (this.allowConsoleClearing) {	41✔
181	util.clearConsole();	6✔
182	}
183	}
184
185	/**
186	* A handle for the watch mode interval that keeps the process alive.
187	* We need this so we can clear it if the builder is disposed
188	*/
189	private watchInterval: NodeJS.Timer \| undefined;
190
191	public enableWatchMode() {
192	this.watcher = new Watcher(this.options);	×
193	if (this.watchInterval) {	×
194	clearInterval(this.watchInterval);	×
195	}
196	//keep the process alive indefinitely by setting an interval that runs once every 12 days
197	this.watchInterval = setInterval(() => { }, 1073741824);	×
198
199	//clear the console
200	this.clearConsole();	×
201
202	let fileObjects = rokuDeploy.normalizeFilesArray(this.options.files ? this.options.files : []);	×
203
204	//add each set of files to the file watcher
205	for (let fileObject of fileObjects) {	×
206	let src = typeof fileObject === 'string' ? fileObject : fileObject.src;	×
207	this.watcher.watch(src);	×
208	}
209
210	this.logger.log('Watching for file changes...');	×
211
212	let debouncedRunOnce = debounce(async () => {	×
213	this.logger.log('File change detected. Starting incremental compilation...');	×
214	await this.runOnce();	×
215	this.logger.log(`Watching for file changes.`);	×
216	}, 50);
217
218	//on any file watcher event
219	this.watcher.on('all', async (event: string, thePath: string) => { //eslint-disable-line @typescript-eslint/no-misused-promises	×
220	if (!this.program) {	×
221	throw new Error('Internal invariant exception: somehow file watcher ran before `ProgramBuilder.run()`');	×
222	}
223	thePath = s`${path.resolve(this.rootDir, thePath)}`;	×
224	if (event === 'add' \|\| event === 'change') {	×
225	const fileObj = {	×
226	src: thePath,
227	dest: rokuDeploy.getDestPath(
228	thePath,
229	this.program.options.files,
230	//some shells will toTowerCase the drive letter, so do it to rootDir for consistency
231	util.driveLetterToLower(this.rootDir)
232	)
233	};
234	this.program.setFile(	×
235	fileObj,
236	await this.getFileContents(fileObj.src)
237	);
238	} else if (event === 'unlink') {	×
239	this.program.removeFile(thePath);	×
240	}
241	//wait for change events to settle, and then execute `run`
242	await debouncedRunOnce();	×
243	});
244	}
245
246	/**
247	* The rootDir for this program.
248	*/
249	public get rootDir() {
250	if (!this.program) {	8!
251	throw new Error('Cannot access `ProgramBuilder.rootDir` until after `ProgramBuilder.run()`');	×
252	}
253	return this.program.options.rootDir;	8✔
254	}
255
256	/**
257	* A method that is used to cancel a previous run task.
258	* Does nothing if previous run has completed or was already canceled
259	*/
260	private cancelLastRun = () => {	59✔
261	return Promise.resolve();	41✔
262	};
263
264	/**
265	* Run the entire process exactly one time.
266	*/
267	private runOnce() {
268	//clear the console
269	this.clearConsole();	41✔
270	let cancellationToken = { isCanceled: false };	41✔
271	//wait for the previous run to complete
272	let runPromise = this.cancelLastRun().then(() => {	41✔
273	//start the new run
274	return this._runOnce(cancellationToken);	41✔
275	}) as any;
276
277	//a function used to cancel this run
278	this.cancelLastRun = () => {	41✔
279	cancellationToken.isCanceled = true;	×
280	return runPromise;	×
281	};
282	return runPromise;	41✔
283	}
284
285	private printDiagnostics(diagnostics?: BsDiagnostic[]) {
286	if (this.options?.showDiagnosticsInConsole === false) {	48!
287	return;	34✔
288	}
289	if (!diagnostics) {	14✔
290	diagnostics = this.getDiagnostics();	6✔
291	}
292
293	//group the diagnostics by file
294	let diagnosticsByFile = {} as Record<string, BsDiagnostic[]>;	14✔
295	for (let diagnostic of diagnostics) {	14✔
296	if (!diagnosticsByFile[diagnostic.file.srcPath]) {	7✔
297	diagnosticsByFile[diagnostic.file.srcPath] = [];	6✔
298	}
299	diagnosticsByFile[diagnostic.file.srcPath].push(diagnostic);	7✔
300	}
301
302	//get printing options
303	const options = diagnosticUtils.getPrintDiagnosticOptions(this.options);	14✔
304	const { cwd, emitFullPaths } = options;	14✔
305
306	let srcPaths = Object.keys(diagnosticsByFile).sort();	14✔
307	for (let srcPath of srcPaths) {	14✔
308	let diagnosticsForFile = diagnosticsByFile[srcPath];	6✔
309	//sort the diagnostics in line and column order
310	let sortedDiagnostics = diagnosticsForFile.sort((a, b) => {	6✔
311	return (	1✔
312	(a.range?.start.line ?? -1) - (b.range?.start.line ?? -1) \|\|	14!
313	(a.range?.start.character ?? -1) - (b.range?.start.character ?? -1)	12!
314	);
315	});
316
317	let filePath = srcPath;	6✔
318	if (!emitFullPaths) {	6!
319	filePath = path.relative(cwd, filePath);	6✔
320	}
321	//load the file text
322	const file = this.program?.getFile(srcPath);	6!
323	//get the file's in-memory contents if available
324	const lines = file?.fileContents?.split(/\r?\n/g) ?? [];	6✔
325
326	for (let diagnostic of sortedDiagnostics) {	6✔
327	//default the severity to error if undefined
328	let severity = typeof diagnostic.severity === 'number' ? diagnostic.severity : DiagnosticSeverity.Error;	7✔
329	let relatedInformation = (diagnostic.relatedInformation ?? []).map(x => {	7!
330	let relatedInfoFilePath = URI.parse(x.location.uri).fsPath;	×
331	if (!emitFullPaths) {	×
332	relatedInfoFilePath = path.relative(cwd, relatedInfoFilePath);	×
333	}
334	return {	×
335	filePath: relatedInfoFilePath,
336	range: x.location.range,
337	message: x.message
338	};
339	});
340	//format output
341	diagnosticUtils.printDiagnostic(options, severity, filePath, lines, diagnostic, relatedInformation);	7✔
342	}
343	}
344	}
345
346	/**
347	* Run the process once, allowing cancelability.
348	* NOTE: This should only be called by `runOnce`.
349	*/
350	private async _runOnce(cancellationToken: { isCanceled: any }) {
351	let wereDiagnosticsPrinted = false;	41✔
352	try {	41✔
353	//maybe cancel?
354	if (cancellationToken.isCanceled === true) {	41!
355	return -1;	×
356	}
357	//validate program
358	this.validateProject();	41✔
359
360	//maybe cancel?
361	if (cancellationToken.isCanceled === true) {	41!
362	return -1;	×
363	}
364
365	const diagnostics = this.getDiagnostics();	41✔
366	this.printDiagnostics(diagnostics);	41✔
367	wereDiagnosticsPrinted = true;	41✔
368	let errorCount = diagnostics.filter(x => x.severity === DiagnosticSeverity.Error).length;	41✔
369
370	if (errorCount > 0) {	41✔
371	this.logger.log(`Found ${errorCount} ${errorCount === 1 ? 'error' : 'errors'}`);	1!
372	return errorCount;	1✔
373	}
374
375	//create the deployment package (and transpile as well)
376	await this.createPackageIfEnabled();	40✔
377
378	//maybe cancel?
379	if (cancellationToken.isCanceled === true) {	40!
380	return -1;	×
381	}
382
383	//deploy the package
384	await this.deployPackageIfEnabled();	40✔
385
386	return 0;	40✔
387	} catch (e) {
388	if (wereDiagnosticsPrinted === false) {	×
389	this.printDiagnostics();	×
390	}
391	throw e;	×
392	}
393	}
394
395	private async createPackageIfEnabled() {
396	if (this.options.copyToStaging \|\| this.options.createPackage \|\| this.options.deploy) {	40✔
397
398	//transpile the project
399	await this.transpile();	4✔
400
401	//create the zip file if configured to do so
402	if (this.options.createPackage !== false \|\| this.options.deploy) {	4✔
403	await this.logger.time(LogLevel.log, [`Creating package at ${this.options.outFile}`], async () => {	2✔
404	await rokuDeploy.zipPackage({	2✔
405	...this.options,
406	logLevel: this.options.logLevel as unknown as RokuDeployLogLevel,
407	outDir: util.getOutDir(this.options),
408	outFile: path.basename(this.options.outFile)
409	});
410	});
411	}
412	}
413	}
414
415	private transpileThrottler = new Throttler(0);	59✔
416	/**
417	* Transpiles the entire program into the staging folder
418	*/
419	public async transpile() {
420	await this.transpileThrottler.run(async () => {	4✔
421	let options = util.cwdWork(this.options.cwd, () => {	4✔
422	return rokuDeploy.getOptions({	4✔
423	...this.options,
424	logLevel: this.options.logLevel as unknown as RokuDeployLogLevel,
425	outDir: util.getOutDir(this.options),
426	outFile: path.basename(this.options.outFile)
427
428	//rokuDeploy's return type says all its fields can be nullable, but it sets values for all of them.
429	}) as any as Required<ReturnType<typeof rokuDeploy.getOptions>>;
430	});
431
432	//get every file referenced by the files array
433	let fileMap = await rokuDeploy.getFilePaths(options.files, options.rootDir);	4✔
434
435	//remove files currently loaded in the program, we will transpile those instead (even if just for source maps)
436	let filteredFileMap = [] as FileObj[];	4✔
437
438	for (let fileEntry of fileMap) {	4✔
439	if (this.program!.hasFile(fileEntry.src) === false) {	4✔
440	filteredFileMap.push(fileEntry);	2✔
441	}
442	}
443
444	this.plugins.emit('beforePrepublish', this, filteredFileMap);	4✔
445
446	await this.logger.time(LogLevel.log, ['Copying to staging directory'], async () => {	4✔
447	//prepublish all non-program-loaded files to staging
448	await rokuDeploy.prepublishToStaging({	4✔
449	...options,
450	files: filteredFileMap
451	});
452	});
453
454	this.plugins.emit('afterPrepublish', this, filteredFileMap);	4✔
455	this.plugins.emit('beforePublish', this, fileMap);	4✔
456
457	await this.logger.time(LogLevel.log, ['Transpiling'], async () => {	4✔
458	//transpile any brighterscript files
459	await this.program!.transpile(fileMap, options.stagingDir);	4✔
460	});
461
462	this.plugins.emit('afterPublish', this, fileMap);	4✔
463	});
464	}
465
466	private async deployPackageIfEnabled() {
467	//deploy the project if configured to do so
468	if (this.options.deploy) {	40!
469	await this.logger.time(LogLevel.log, ['Deploying package to', this.options.host], async () => {	×
470	await rokuDeploy.publish({	×
471	...this.options,
472	logLevel: this.options.logLevel as unknown as RokuDeployLogLevel,
473	outDir: util.getOutDir(this.options),
474	outFile: path.basename(this.options.outFile)
475	});
476	});
477	}
478	}
479
480	/**
481	* Parse and load the AST for every file in the project
482	*/
483	private async loadAllFilesAST() {
484	await this.logger.time(LogLevel.log, ['Parsing files'], async () => {	46✔
485	let files = await this.logger.time(LogLevel.debug, ['getFilePaths'], async () => {	46✔
486	return util.getFilePaths(this.options);	46✔
487	});
488	this.logger.trace('ProgramBuilder.loadAllFilesAST() files:', files);	46✔
489
490	const typedefFiles = [] as FileObj[];	46✔
491	const sourceFiles = [] as FileObj[];	46✔
492	let manifestFile: FileObj \| null = null;	46✔
493
494	for (const file of files) {	46✔
495	// source files (.brs, .bs, .xml)
496	if (/(?<!\.d)\.(bs\|brs\|xml)$/i.test(file.dest)) {	30✔
497	sourceFiles.push(file);	23✔
498
499	// typedef files (.d.bs)
500	} else if (/\.d\.bs$/i.test(file.dest)) {	7✔
501	typedefFiles.push(file);	2✔
502
503	// manifest file
504	} else if (/^manifest$/i.test(file.dest)) {	5!
505	manifestFile = file;	5✔
506	}
507	}
508
509	if (manifestFile) {	46✔
510	this.program!.loadManifest(manifestFile, false);	5✔
511	}
512
513	const loadFile = async (fileObj) => {	46✔
514	try {	25✔
515	this.program!.setFile(fileObj, await this.getFileContents(fileObj.src));	25✔
516	} catch (e) {
517	this.logger.log(e); // log the error, but don't fail this process because the file might be fixable later	×
518	}
519	};
520	await Promise.all(typedefFiles.map(loadFile)); // preload every type definition file, which eliminates duplicate file loading	46✔
521	await Promise.all(sourceFiles.map(loadFile)); // parse source files	46✔
522	});
523	}
524
525	/**
526	* Remove all files from the program that are in the specified folder path
527	* @param srcPath the path to the
528	*/
529	public removeFilesInFolder(srcPath: string) {
530	for (let filePath in this.program.files) {	×
531	//if the file path starts with the parent path and the file path does not exactly match the folder path
532	if (filePath.startsWith(srcPath) && filePath !== srcPath) {	×
533	this.program.removeFile(filePath);	×
534	}
535	}
536	}
537
538	/**
539	* Scan every file and resolve all variable references.
540	* If no errors were encountered, return true. Otherwise return false.
541	*/
542	private validateProject() {
543	this.program.validate();	41✔
544	}
545
546	public dispose() {
547	if (this.watcher) {	21!
548	this.watcher.dispose();	×
549	}
550	if (this.program) {	21!
551	this.program.dispose?.();	21!
552	}
553	if (this.watchInterval) {	21!
554	clearInterval(this.watchInterval);	×
555	}
556	}
557	}

rokucommunity / brighterscript / #13286

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