add travis badge, make with 4 thread

Author: hathach

README.md

@@ -1,4 +1,6 @@
-# Adafruit Bluefruit nRF52 Bootloader
+# Adafruit nRF52 Bootloader
+
+[![Build Status](https://travis-ci.com/adafruit/Adafruit_nRF52_Bootloader.svg?branch=master)](https://travis-ci.com/adafruit/Adafruit_nRF52_Bootloader)
 
 This is a CDC/DFU/UF2 bootloader for nRF52 boards.
 

tools/build_all.py

@@ -7,10 +7,8 @@
 subprocess.run("rm -rf _build*", shell=True)
 subprocess.run("rm -rf bin/*", shell=True)
 
-PARALLEL = "-j 5"
 travis = False
 if "TRAVIS" in os.environ and os.environ["TRAVIS"] == "true":
-    PARALLEL="-j 2"
     travis = True
 
 exit_status = 0
@@ -21,12 +19,14 @@
 
 #sha, version = build_info.get_version_info()
 
+total_time = time.monotonic()
+
 for board in all_boards:
     bin_directory = "bin/{}/".format(board)
     os.makedirs(bin_directory, exist_ok=True)
 
     start_time = time.monotonic()
-    make_result = subprocess.run("make BOARD={} combinehex genpkg".format(board), shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+    make_result = subprocess.run("make -j 4 BOARD={} combinehex genpkg".format(board), shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
     build_duration = time.monotonic() - start_time
     success = "\033[32msucceeded\033[0m"
     if make_result.returncode != 0:
@@ -48,4 +48,7 @@
 
     print()
 
+total_time = time.monotonic() - total_time
+print("Total build time took {:.2f}s".format(total_time))
+
 sys.exit(exit_status)