···

       
49
       
49
       
 
       
+      if (process.env['NIX_NODEJS_BUILDNPMPACKAGE']) {

     

       
50
       
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+        const spawn = require('@npmcli/promise-spawn')

     

       
51
       
51
       
 
       
+

     

       
52
       
52
       
-
       
+        const npmWithNixFlags = (args, cmd) => spawn('bash', ['-c', 'npm ' + args + ` $npm${cmd}Flags "$\{npm${cmd}FlagsArray[@]}" $npmFlags "$\{npmFlagsArray[@]}"`], { cwd: dir, env: { ...process.env, _PACOTE_NO_PREPARE_: noPrepare.join('\n') } }, { message: `\`npm ${args}\` failed` })

     

       
52
       
52
       
+
       
+        const npmWithNixFlags = (args, cmd) => spawn('bash', ['-c', 'npm ' + args + ` $npm${cmd}Flags "$\{npm${cmd}FlagsArray[@]}" $npmFlags "$\{npmFlagsArray[@]}" || [ -n "$forceGitDeps" ]`], { cwd: dir, env: { ...process.env, _PACOTE_NO_PREPARE_: noPrepare.join('\n') } }, { message: `\`npm ${args}\` failed` })

     

       
53
       
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+        const patchShebangs = () => spawn('bash', ['-c', 'source $stdenv/setup; patchShebangs node_modules'], { cwd: dir })

     

       
54
       
54
       
 
       
+

     

       
55
       
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+        // the DirFetcher will do its own preparation to run the prepare scripts

     
···

       
57
       
57
       
 
       
+        //

     

       
58
       
58
       
 
       
+        // We ignore this.npmConfig to maintain an environment that's as close

     

       
59
       
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+        // to the rest of the build as possible.

     

       
60
       
60
       
-
       
+        return spawn('bash', ['-c', '$prefetchNpmDeps --fixup-lockfile package-lock.json'], { cwd: dir })

     

       
60
       
60
       
+
       
+        return spawn('bash', ['-c', '$prefetchNpmDeps --fixup-lockfile package-lock.json || [ -n "$forceGitDeps" ]'], { cwd: dir })

     

       
61
       
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+        .then(() => npmWithNixFlags('ci --ignore-scripts', 'Install'))

     

       
62
       
62
       
 
       
+        .then(patchShebangs)

     

       
63
       
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+        .then(() => npmWithNixFlags('rebuild', 'Rebuild'))