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Search for a local npm installation #74

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merged 2 commits into from
Dec 3, 2017
Merged

Search for a local npm installation #74

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c685a75
Run npm installed binary if it exists
dougkoch Nov 26, 2017
5ce0f40
Make index.js look for a local installation
dougkoch Dec 3, 2017
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19 changes: 18 additions & 1 deletion npm/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@

// This package inspired by
// https://github.com/angular/clang-format/blob/master/index.js
const fs = require('fs');
const os = require('os');
const path = require('path');
const spawn = require('child_process').spawn;
Expand All @@ -38,7 +39,23 @@ function main(args) {
return Promise.resolve(1);
}

const binary = path.join(__dirname, 'bin', `${platform}_${arch}`, 'ibazel');
// By default, use the ibazel binary underneath this script
var basePath = __dirname;

const dirs = process.cwd().split(path.sep);

// Walk up the cwd, looking for a local ibazel installation
for (var i = dirs.length; i > 0; i--) {
var attemptedBasePath = [...dirs.slice(0, i), 'node_modules', '@bazel', 'ibazel'].join(path.sep);

// If we find a local installation, use that one instead
if (fs.existsSync(path.join(attemptedBasePath, 'bin', `${platform}_${arch}`, 'ibazel'))) {
basePath = attemptedBasePath;
break;
}
}

const binary = path.join(basePath, 'bin', `${platform}_${arch}`, 'ibazel');
const ibazel = spawn(binary, args, {stdio: 'inherit'});
ibazel.on('close', e => process.exitCode = e);
}
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