fix: allow watching relative path files (#1385)

Fixes #1355

doc/cli/help.txt

@@ -5,7 +5,7 @@
   --config file ............ alternate nodemon.json config file to use
   -e, --ext ................ extensions to look for, ie. js,jade,hbs.
   -x, --exec app ........... execute script with "app", ie. -x "python -v".
-  -w, --watch dir........... watch directory "dir" or files. use once for
+  -w, --watch path.......... watch directory "path" or files. use once for
                              each directory or file to watch.
   -i, --ignore ............. ignore specific files or directories.
   -V, --verbose ............ show detail on what is causing restarts.

lib/monitor/match.js

@@ -160,7 +160,8 @@ function match(files, monitor, ext) {
       return '!**' + (prefix !== path.sep ? path.sep : '') + s.slice(1);
     }
 
-    if (s.slice(0, 2) === '..') {
+    // if it starts with a period, then let's get the relative path
+    if (s.indexOf('.') === 0) {
       return path.resolve(cwd, s);
     }
 

test/monitor/match.test.js

@@ -557,4 +557,18 @@ describe('watcher', function() {
       }
     );
   });
+
+  it('should watch relative paths', function() {
+    const monitor = match.rulesToMonitor([ './http.js' ], [], {
+      dirs: [],
+    });
+
+    var matched = match(
+      ['http.js'],
+      monitor,
+      'js,mjs,json'
+    );
+    assert(matched.result.length === 1, 'found match ' + matched.results);
+  });
+
 });