1+ import * as path from 'node:path'
2+ import * as url from 'node:url'
3+ import * as fs from 'node:fs'
4+ import * as assert from 'node:assert/strict'
5+ import * as threads from 'node:worker_threads'
6+ import * as esb from 'esbuild'
7+ import ts from 'typescript'
8+
9+ type Worker_Data = {
10+ is_dev : boolean ,
11+ dist_dirname : string ,
12+ ts_entries : string [ ] ,
13+ }
14+
15+ const filename = url . fileURLToPath ( import . meta. url )
16+ // const dirname = path.dirname(filename)
17+
18+ export const DEFAULT_EXTERNAL_DEPS : string [ ] = [
19+ 'solid-js' ,
20+ 'solid-js/*' ,
21+ '@solid-devtools/shared/*' ,
22+ ]
23+
24+ export function get_external_deps_from_pkg ( pkg_filename : string ) : string [ ] {
25+ let pkg = JSON . parse ( fs . readFileSync ( pkg_filename , 'utf-8' ) ) as any
26+ return [
27+ ...DEFAULT_EXTERNAL_DEPS ,
28+ ...Object . keys ( { ...pkg ?. peerDependencies , ...pkg ?. dependencies } ) ,
29+ ]
30+ }
31+
32+ export function get_is_dev_from_args ( ) : boolean {
33+ return process . argv . includes ( '--watch' )
34+ }
35+
36+ export function get_common_esbuild_options ( is_dev : boolean , dist_dirname : string ) : esb . BuildOptions {
37+ return {
38+ platform : 'browser' ,
39+ format : 'esm' ,
40+ target : 'esnext' ,
41+ sourcemap : is_dev ,
42+ outdir : dist_dirname ,
43+ bundle : true ,
44+ splitting : true ,
45+ treeShaking : ! is_dev ,
46+ logLevel : is_dev ? 'debug' : 'warning' ,
47+ }
48+ }
49+
50+ function main ( ) {
51+
52+ if ( threads . isMainThread )
53+ return
54+
55+ /* Worker - runs the ts program */
56+
57+ const data = threads . workerData as Worker_Data
58+
59+ const port = threads . parentPort
60+ assert . ok ( port != null )
61+
62+ const options = get_tsc_options ( data . dist_dirname )
63+
64+ /* Watch - never terminates */
65+ if ( data . is_dev ) {
66+ const host = ts . createWatchCompilerHost (
67+ data . ts_entries ,
68+ options ,
69+ ts . sys ,
70+ undefined ,
71+ report_diagnostic ,
72+ report_watch_status_changed ,
73+ )
74+ ts . createWatchProgram ( host )
75+ }
76+ /* Emit once and exit */
77+ else {
78+ let begin = performance . now ( )
79+ ts . createProgram ( data . ts_entries , options ) . emit ( )
80+ // eslint-disable-next-line no-console
81+ console . log ( `DTS complete in ${ ( performance . now ( ) - begin ) . toFixed ( 2 ) } )
82+ process . exit ( 0 )
83+ }
84+ }
85+
86+ export async function build (
87+ options : esb . BuildOptions [ ] ,
88+ ts_entries : string [ ] ,
89+ is_dev : boolean ,
90+ dist_dirname : string = path . join ( process . cwd ( ) , `dist` ) ,
91+ ) : Promise < void > {
92+
93+ /* Clear dist when building to prod */
94+ if ( ! is_dev ) {
95+ fs . rmSync ( dist_dirname , { recursive : true , force : true } )
96+ }
97+
98+ const worker = new threads . Worker ( filename , {
99+ workerData : { is_dev, dist_dirname, ts_entries} satisfies Worker_Data
100+ } )
101+
102+ worker . on ( 'error' , ( error ) => {
103+ // eslint-disable-next-line no-console
104+ console . error ( `Worker error:` , error )
105+ } )
106+
107+ /* Watch - never terminates */
108+ if ( is_dev ) {
109+ for ( const option of options ) {
110+ esb . context ( option )
111+ . then ( ctx => ctx . watch ( ) )
112+ }
113+ }
114+ /* Build once - wait for all to finish */
115+ else {
116+ let begin = performance . now ( )
117+ await Promise . all ( options . map ( option => esb . build ( option ) ) )
118+ // eslint-disable-next-line no-console
119+ console . log ( `JS built in ${ ( performance . now ( ) - begin ) . toFixed ( 2 ) } )
120+ }
121+ }
122+
123+ const format_host : ts . FormatDiagnosticsHost = {
124+ getCurrentDirectory : ( ) => process . cwd ( ) ,
125+ getCanonicalFileName : ( fileName ) => fileName ,
126+ getNewLine : ( ) => ts . sys . newLine
127+ }
128+
129+ function report_diagnostic ( diagnostic : ts . Diagnostic ) {
130+ // eslint-disable-next-line no-console
131+ console . error ( ts . formatDiagnostic ( diagnostic , format_host ) )
132+ }
133+ function report_diagnostics ( diagnostics : ts . Diagnostic [ ] ) {
134+ // eslint-disable-next-line no-console
135+ console . error ( ts . formatDiagnostics ( diagnostics , format_host ) )
136+ }
137+ function report_watch_status_changed ( diagnostic : ts . Diagnostic ) {
138+ // eslint-disable-next-line no-console
139+ console . info ( ts . formatDiagnostic ( diagnostic , format_host ) )
140+ }
141+
142+ export function get_tsc_options ( dist_dirname : string ) : ts . CompilerOptions {
143+
144+ let ts_config_file = ts . findConfigFile ( process . cwd ( ) , ts . sys . fileExists , 'tsconfig.json' )
145+ if ( ! ts_config_file ) throw Error ( 'tsconfig.json not found' )
146+
147+ let { config, error} = ts . readConfigFile ( ts_config_file , ts . sys . readFile )
148+ if ( error ) {
149+ report_diagnostic ( error )
150+ }
151+
152+ let { options, errors} = ts . parseJsonConfigFileContent ( config , ts . sys , process . cwd ( ) )
153+ if ( errors . length > 0 ) {
154+ report_diagnostics ( errors )
155+ }
156+
157+ return {
158+ ...options ,
159+ outDir : dist_dirname ,
160+ emitDeclarationOnly : true ,
161+ noEmit : false ,
162+ noEmitOnError : false ,
163+ declaration : true ,
164+ sourceMap : true ,
165+ }
166+ }
167+
168+
169+ main ( )
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