Commit c3f8aa6

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Feat: Add util for files and piping processes

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Lines changed: 6 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -2,5 +2,9 @@`
`2`	`2`
`3`	`3`	`## Node/JS`
`4`	`4`
`5`		`-* [Get Version number in code](https://stackoverflow.com/questions/9153571/is-there-a-way-to-get-version-from-package-json-in-nodejs-code)`
`6`		`-* [Commandline arguments to npm run script](https://stackoverflow.com/questions/11580961/sending-command-line-arguments-to-npm-script)`
	`5`	`+* [Node: Get Version number in code](https://stackoverflow.com/questions/9153571/is-there-a-way-to-get-version-from-package-json-in-nodejs-code)`
	`6`	`+* [Node: Commandline arguments to npm run script](https://stackoverflow.com/questions/11580961/sending-command-line-arguments-to-npm-script)`
	`7`	`+* [Node: Piping stdout to a file](https://stackoverflow.com/questions/32719923/redirecting-stdout-to-file-nodejs)`
	`8`	`+* [Node: Child Process : Docs](https://nodejs.org/docs/v0.4.6/api/child_processes.html#child.stdin)`
	`9`	`+* [Node: Child Process : Example](https://zaiste.net/programming/nodejs/howtos/redirect-output-to-file-nodejs/)`
	`10`	`+* [Node: External Program](https://stackoverflow.com/questions/5775088/how-to-execute-an-external-program-from-within-node-js)`

Lines changed: 12 additions & 0 deletions

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`@@ -0,0 +1,12 @@`
	`1`	`+import { writeFileSync } from "fs";`
	`2`	`+import path from "path";`
	`3`	`+import { fileURLToPath } from "url";`
	`4`	`+`
	`5`	`+//Node.js 10 supports ECMAScript modules, where __dirname and __filename are no longer available.`
	`6`	`+//https://stackoverflow.com/a/50053801/12988588`
	`7`	`+//https://stackoverflow.com/a/55859500/12988588`
	`8`	`+export const getDirname = (filepath) => {`
	`9`	`+ return path.dirname(fileURLToPath(import.meta.url));`
	`10`	`+};`
	`11`	`+`
	`12`	`+export default {getDirname}`

Lines changed: 5 additions & 9 deletions

Original file line number	Diff line number	Diff line change
`@@ -1,10 +1,6 @@`
`1`		`-import path from "path";`
`2`		`-import { fileURLToPath } from "url";`
`3`		`-`
`4`		`-//Node.js 10 supports ECMAScript modules, where __dirname and __filename are no longer available.`
`5`		`-//https://stackoverflow.com/a/50053801/12988588`
`6`		`-//https://stackoverflow.com/a/55859500/12988588`
`7`		`-export const getDirname = ( filepath ) => {`
`8`		`- return path.dirname(fileURLToPath(import.meta.url));`
	`1`	`+import { getDirname } from "./files";`
	`2`	`+import { connectProcess } from "./shell";`
	`3`	`+export {`
	`4`	`+ getDirname`
`9`	`5`	`}`
`10`		`-`
	`6`	`+exportdefault{getDirname,connectProcess}`

Lines changed: 36 additions & 0 deletions

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`@@ -0,0 +1,36 @@`
	`1`	`+import { spawn } from "child_process";`
	`2`	`+`
	`3`	`+export const connectProcess = (exe1, args1, exe2, args2, callback) => {`
	`4`	`+ const program1 = spawn(exe1, args1);`
	`5`	`+ const program2 = spawn(exe2, args2);`
	`6`	`+ let error1 = "";`
	`7`	`+ let error2 = "";`
	`8`	`+ let output = "";`
	`9`	`+ program1.stdout.on("data", (chunk) => {`
	`10`	`+ program2.stdin.write(chunk);`
	`11`	`+ });`
	`12`	`+ program1.stderr.on("data", (err) => {`
	`13`	`+ error1 += err.toString();`
	`14`	`+ });`
	`15`	`+ program1.on("exit", (code) => {`
	`16`	`+ if (code !== 0) {`
	`17`	+ error1 += `exited with code ${code}`;
	`18`	`+ } else {`
	`19`	`+ program2.stdin.end();`
	`20`	`+ }`
	`21`	`+ });`
	`22`	`+ program2.stdout.on("data", (chunk) => {`
	`23`	`+ output += chunk.toString();`
	`24`	`+ });`
	`25`	`+ program2.stderr.on("data", (err) => {`
	`26`	`+ error2 += err.toString();`
	`27`	`+ });`
	`28`	`+ program2.on("exit", (code) => {`
	`29`	`+ if (code != 0) {`
	`30`	+ error2 += `exited with code ${code}`;
	`31`	`+ }`
	`32`	`+ callback(exe1, exe2, error1, error2, output);`
	`33`	`+ });`
	`34`	`+};`
	`35`	`+`
	`36`	`+export default { connectProcess };`

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