Merge pull request #1944 from mbedmicro/ctrl-c-traceback

Fixes the python traceback when the user does ctrl+c during compilation

tools/toolchains/__init__.py

@@ -41,7 +41,11 @@ CPU_COUNT_MIN = 1
 def compile_worker(job):
     results = []
     for command in job['commands']:
-        _, _stderr, _rc = run_cmd(command, job['work_dir'])
+        try:
+            _, _stderr, _rc = run_cmd(command, job['work_dir'])
+        except KeyboardInterrupt as e:
+            raise ToolException
+
         results.append({
             'code': _rc,
             'output': _stderr,

tools/utils.py

@@ -38,9 +38,10 @@ def run_cmd(command, wd=None, redirect=False):
     try:
         p = Popen(command, stdout=PIPE, stderr=STDOUT if redirect else PIPE, cwd=wd)
         _stdout, _stderr = p.communicate()
-    except:
+    except OSError as e:
         print "[OS ERROR] Command: "+(' '.join(command))
         raise
+
     return _stdout, _stderr, p.returncode