print clear message for "bitbake -e ASSUME_PROVIDED"

The following changes since commit 78983e939ab17f02f8911c8b0d0e326b419856b9:

lib/oe/classextend: Ensure we don't extend expressions more than once (2012-11-06 09:34:47 +0100)

are available in the git repository at:
git://git.pokylinux.org/poky-contrib robert/assume
http://git.pokylinux.org/cgit.cgi/poky-contrib/log/?h=robert/assume

Robert Yang (1):
print clear message for "bitbake -e ASSUME_PROVIDED"

 bitbake/lib/bb/cooker.py |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

1.7.7

"bitbake -e ASSUME_PROVIDED" should fail, but the error message wasn't clear enough in the past:

$ bitbake -e bzip2-native
[snip]
ERROR: Command execution failed: Traceback (most recent call last):
  File "/buildarea/lyang1/poky/bitbake/lib/bb/command.py", line 94, in
runAsyncCommand
    commandmethod(self.cmds_async, self, options)
  File "/buildarea/lyang1/poky/bitbake/lib/bb/command.py", line 323, in
showEnvironmentTarget
    command.cooker.showEnvironment(None, pkg)
  File "/buildarea/lyang1/poky/bitbake/lib/bb/cooker.py", line 325, in
showEnvironment
    fnid = taskdata.build_targets[targetid][0]
KeyError: 0
[snip]

With this patch, the massage will be:
[snip]
ERROR: bzip2-native is in ASSUME_PROVIDED
ERROR: Command execution failed: Exited with 1

Summary: There were 2 ERROR messages shown, returning a non-zero exit code.

[YOCTO #3392]

---
 bitbake/lib/bb/cooker.py |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

index e299059..5f88f1f 100644
@@ -313,6 +313,10 @@ class BBCooker:
         elif len(pkgs_to_build) == 1:
             self.updateCache()
 
+            ignore = self.configuration.data.getVar("ASSUME_PROVIDED", True) or ""
+            if pkgs_to_build[0] in set(ignore.split()):
+                bb.fatal("%s is in ASSUME_PROVIDED" % pkgs_to_build[0])
+
             localdata = data.createCopy(self.configuration.data)
             bb.data.update_data(localdata)
             bb.data.expandKeys(localdata)

1.7.7