[bitbake-devel] [PATCH 1/2] runqueue: report close matches for an invalid task name

[Paul Eggleton]

Help to pick up mistakes such as "bitbake -c cleanstate xyz" (instead
of "bitbake -c cleansstate xyz".)

Signed-off-by: Paul Eggleton <paul.eggleton at linux.intel.com>
---
 bitbake/lib/bb/runqueue.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/bitbake/lib/bb/runqueue.py b/bitbake/lib/bb/runqueue.py
index b2c9703..b3374f1 100644
--- a/bitbake/lib/bb/runqueue.py
+++ b/bitbake/lib/bb/runqueue.py
@@ -601,7 +601,11 @@ class RunQueueData:
                 continue
 
             if target[1] not in taskData.tasks_lookup[fnid]:
-                bb.msg.fatal("RunQueue", "Task %s does not exist for target %s" % (target[1], target[0]))
+                import difflib
+                close_matches = difflib.get_close_matches(target[1], taskData.tasks_lookup[fnid], cutoff=0.7)
+                if close_matches:
+                    extra = ". Close matches:\n  %s" % "\n  ".join(close_matches)
+                bb.msg.fatal("RunQueue", "Task %s does not exist for target %s%s" % (target[1], target[0], extra))
 
             listid = taskData.tasks_lookup[fnid][target[1]]
 
-- 
1.8.1.2