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lib: don't error in repl when cwd doesn't exist
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The current working directory may not exist when the REPL starts up.
Don't treat that as an error because it's still possible to do many
useful things.  This is like the previous commit but for the REPL.

Fixes: #1184
PR-URL: #1194
Reviewed-By: Johan Bergström <[email protected]>
Reviewed-By: Rod Vagg <[email protected]>
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bnoordhuis committed Mar 19, 2015
1 parent 2c6f79c commit 2b2e48a
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Showing 2 changed files with 36 additions and 2 deletions.
12 changes: 10 additions & 2 deletions lib/repl.js
Original file line number Diff line number Diff line change
Expand Up @@ -40,8 +40,16 @@ function hasOwnProperty(obj, prop) {
}


// hack for require.resolve("./relative") to work properly.
module.filename = path.resolve('repl');
try {
// hack for require.resolve("./relative") to work properly.
module.filename = path.resolve('repl');
} catch (e) {
// path.resolve('repl') fails when the current working directory has been
// deleted. Fall back to the directory name of the (absolute) executable
// path. It's not really correct but what are the alternatives?
const dirname = path.dirname(process.execPath);
module.filename = path.resolve(dirname, 'repl');
}

// hack for repl require to work properly with node_modules folders
module.paths = require('module')._nodeModulePaths(module.filename);
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26 changes: 26 additions & 0 deletions test/parallel/test-cwd-enoent-repl.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,26 @@
var common = require('../common');
var assert = require('assert');
var fs = require('fs');
var spawn = require('child_process').spawn;

// Fails with EINVAL on SmartOS, EBUSY on Windows.
if (process.platform === 'sunos' || process.platform === 'win32') {
console.log('1..0 # Skipped: cannot rmdir current working directory');
return;
}

var dirname = common.tmpDir + '/cwd-does-not-exist-' + process.pid;
fs.mkdirSync(dirname);
process.chdir(dirname);
fs.rmdirSync(dirname);

var proc = spawn(process.execPath, ['--interactive']);
proc.stdout.pipe(process.stdout);
proc.stderr.pipe(process.stderr);
proc.stdin.write('require("path");\n');
proc.stdin.write('process.exit(42);\n');

proc.once('exit', common.mustCall(function(exitCode, signalCode) {
assert.equal(exitCode, 42);
assert.equal(signalCode, null);
}));

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