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-rw-r--r--node_modules/cross-spawn/lib/util/resolveCommand.js31
1 files changed, 31 insertions, 0 deletions
diff --git a/node_modules/cross-spawn/lib/util/resolveCommand.js b/node_modules/cross-spawn/lib/util/resolveCommand.js
new file mode 100644
index 0000000..b7a9490
--- /dev/null
+++ b/node_modules/cross-spawn/lib/util/resolveCommand.js
@@ -0,0 +1,31 @@
+'use strict';
+
+var path = require('path');
+var which = require('which');
+var LRU = require('lru-cache');
+
+var commandCache = new LRU({ max: 50, maxAge: 30 * 1000 }); // Cache just for 30sec
+
+function resolveCommand(command, noExtension) {
+ var resolved;
+
+ noExtension = !!noExtension;
+ resolved = commandCache.get(command + '!' + noExtension);
+
+ // Check if its resolved in the cache
+ if (commandCache.has(command)) {
+ return commandCache.get(command);
+ }
+
+ try {
+ resolved = !noExtension ?
+ which.sync(command) :
+ which.sync(command, { pathExt: path.delimiter + (process.env.PATHEXT || '') });
+ } catch (e) { /* empty */ }
+
+ commandCache.set(command + '!' + noExtension, resolved);
+
+ return resolved;
+}
+
+module.exports = resolveCommand;