bitbake: build: print traceback if progress handler can't be created

Before:

ERROR: expat-native-2.2.9-r0 do_compile: 'NoneType' object has no attribute 'get'
ERROR: Logfile of failure stored in: /home/laplante/repos/oe-core/build/tmp-glibc/work/x86_64-linux/expat-native/2.2.9-r0/temp/log.do_compile.90289
Log data follows:
| ERROR: 'NoneType' object has no attribute 'get'
ERROR: Task (virtual:native:/home/laplante/repos/oe-core/meta/recipes-core/expat/expat_2.2.9.bb:do_compile) failed with exit code '1'

After:

ERROR: expat-native-2.2.9-r0 do_configure: Failed to create progress handler
ERROR: expat-native-2.2.9-r0 do_configure: Traceback (most recent call last):
  File "/home/laplante/repos/oe-core/bitbake/lib/bb/build.py", line 400, in exec_func_shell
    logfile = create_progress_handler(func, progress, logfile, d)
  File "/home/laplante/repos/oe-core/bitbake/lib/bb/build.py", line 344, in create_progress_handler
    cls_obj = functools.reduce(resolve, cls.split("."), bb.utils._context)
  File "/home/laplante/repos/oe-core/bitbake/lib/bb/build.py", line 343, in resolve
    return x.get(y)
AttributeError: 'NoneType' object has no attribute 'get'

ERROR: expat-native-2.2.9-r0 do_configure: 'NoneType' object has no attribute 'get'
ERROR: Logfile of failure stored in: /home/laplante/repos/oe-core/build/tmp-glibc/work/x86_64-linux/expat-native/2.2.9-r0/temp/log.do_configure.22982
ERROR: Task (virtual:native:/home/laplante/repos/oe-core/meta/recipes-core/expat/expat_2.2.9.bb:do_configure) failed with exit code '1'

(Bitbake rev: ba0472a672eacbbbb2295252a0d2056d3399c6a9)

Signed-off-by: Chris Laplante <chris.laplante@agilent.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/bitbake/lib/bb/build.py b/bitbake/lib/bb/build.py
index 23b6ee455f..cb2e75b145 100644
--- a/bitbake/lib/bb/build.py
+++ b/bitbake/lib/bb/build.py
@@ -398,7 +398,13 @@ exit $ret
 
     progress = d.getVarFlag(func, 'progress')
     if progress:
-        logfile = create_progress_handler(func, progress, logfile, d)
+        try:
+            logfile = create_progress_handler(func, progress, logfile, d)
+        except:
+            from traceback import format_exc
+            logger.error("Failed to create progress handler")
+            logger.error(format_exc())
+            raise
 
     fifobuffer = bytearray()
     def readfifo(data):