[oe-commits] [bitbake] 04/04: bb: siggen: Print more info when basehash are mis-matched

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rpurdie pushed a commit to branch master-next
in repository bitbake.

commit 07b6054b32b37375e2de4b1276bf6fe3f9ad0b04
Author: Robert Yang <liezhi.yang at windriver.com>
AuthorDate: Wed Apr 17 19:01:51 2019 +0800

    bb: siggen: Print more info when basehash are mis-matched
    
    This is useful for debugging.
    
    Signed-off-by: Robert Yang <liezhi.yang at windriver.com>
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 lib/bb/siggen.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/bb/siggen.py b/lib/bb/siggen.py
index 89bf533..7b9f3de 100644
--- a/lib/bb/siggen.py
+++ b/lib/bb/siggen.py
@@ -119,6 +119,12 @@ class SignatureGeneratorBasic(SignatureGenerator):
             k = fn + "." + task
             if not ignore_mismatch and k in self.basehash and self.basehash[k] != basehash[k]:
                 bb.error("When reparsing %s, the basehash value changed from %s to %s. The metadata is not deterministic and this needs to be fixed." % (k, self.basehash[k], basehash[k]))
+                bb.error("The following commands may help:")
+                cmd = "$ bitbake %s -c%s" % (d.getVar('PN'), task)
+                # Make sure sigdata is dumped before run printdiff
+                bb.error("%s -Snone" % cmd)
+                bb.error("Then:")
+                bb.error("%s -Sprintdiff\n" % cmd)
             self.basehash[k] = basehash[k]
 
         self.taskdeps[fn] = taskdeps

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