Mixing shebang and an esbuild plugin causes an error

[segevfiner]

Steps to reproduce:

1. Clone https://github.com/segevfiner/tsup-fileloc

2. Run npm install & npm build, it will error with:

   
   ✘ [ERROR] Syntax error "!"
   
   src/index.ts:10:1:
     10 │ #!/usr/bin/env node
        ╵  ^

CJS Build failed Error: Build failed with 1 error: src/index.ts:10:1: ERROR: Syntax error "!" at failureErrorWithLog (/prj/tsup-fileloc/node_modules/esbuild/lib/main.js:1621:15) at /prj/tsup-fileloc/node_modules/esbuild/lib/main.js:1263:28 at runOnEndCallbacks (/prj/tsup-fileloc/node_modules/esbuild/lib/main.js:1043:63) at buildResponseToResult (/prj/tsup-fileloc/node_modules/esbuild/lib/main.js:1261:7) at /prj/tsup-fileloc/node_modules/esbuild/lib/main.js:1374:14 at /prj/tsup-fileloc/node_modules/esbuild/lib/main.js:675:9 at handleIncomingPacket (/prj/tsup-fileloc/node_modules/esbuild/lib/main.js:772:9) at Socket.readFromStdout (/prj/tsup-fileloc/node_modules/esbuild/lib/main.js:641:7) at Socket.emit (node:events:527:28) at addChunk (node:internal/streams/readable:315:12)

If you either remove/comment out the shebang, or the esbuild plugin, it will work.

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[Ge-yuan-jun]

same question

[Ge-yuan-jun]

I have tried banner option, it doesn't work. So I hacked it with some code

const fs = require('fs')
const path = require('path')

const build = path.join(__dirname, '../dist', 'index.cjs.js')
const unpatchedBuild = fs.readFileSync(build, 'utf-8')
const patchedBuild = unpatchedBuild.replace(
  "'use strict';",
  "#!/usr/bin/env node\n\n'use strict;'\n"
)
fs.writeFileSync(build, patchedBuild, 'utf-8')

[AntoineKM]

I don't know if this is possibly related: https://github.com/egoist/tsup/issues/910