metadata_scm.bbclass: simplify base_detect_revision()

The previous code looks strange because of historical reason, simply return
base_get_metadata_git_revision/branch() is enough, the later functions has
handled everything like '<unknown>' and strip().

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>

diff --git a/meta/classes/metadata_scm.bbclass b/meta/classes/metadata_scm.bbclass
index fa791f04c4c090d1f9a3dd77e0b853fa9d4ddae1..658e2f883b07650e51298fafa02d9b6495cfffb5 100644 (file)
--- a/meta/classes/metadata_scm.bbclass
+++ b/meta/classes/metadata_scm.bbclass
@@ -3,27 +3,11 @@ METADATA_REVISION ?= "${@base_detect_revision(d)}"
 
 def base_detect_revision(d):
     path = base_get_scmbasepath(d)
-
-    scms = [base_get_metadata_git_revision]
-
-    for scm in scms:
-        rev = scm(path, d)
-        if rev != "<unknown>":
-            return rev
-
-    return "<unknown>"
+    return base_get_metadata_git_revision(path, d)
 
 def base_detect_branch(d):
     path = base_get_scmbasepath(d)
-
-    scms = [base_get_metadata_git_branch]
-
-    for scm in scms:
-        rev = scm(path, d)
-        if rev != "<unknown>":
-            return rev.strip()
-
-    return "<unknown>"
+    return base_get_metadata_git_branch(path, d)
 
 def base_get_scmbasepath(d):
     return os.path.join(d.getVar('COREBASE'), 'meta')