Windows support!

(Hopefully this didn't break macOS/Linux.)

1 files changed, 12 insertions, 0 deletions

diff --git a/src/command-exists.js b/src/command-exists.js
new file mode 100755
index 0000000..9921364
--- /dev/null
+++ b/src/command-exists.js
@@ -0,0 +1,12 @@
+const npmCommandExists = require('command-exists')
+
+module.exports = async function commandExists(command) {
+  // When the command-exists module sees that a given command doesn't exist, it
+  // throws an error instead of returning false, which is not what we want.
+
+  try {
+    return await npmCommandExists(command)
+  } catch(err) {
+    return false
+  }
+}