[oe-commits] Khem Raj : base.bbclass: Fix PR increment bug when PR number is a single digit

[git version control]

Module: openembedded-core.git
Branch: master
Commit: 9aeaae7b786a42d213ad4224743dfd49e2324077
URL:    http://git.openembedded.org/?p=openembedded-core.git&a=commit;h=9aeaae7b786a42d213ad4224743dfd49e2324077

Author: Khem Raj <raj.khem at gmail.com>
Date:   Mon May 16 11:18:38 2011 -0700

base.bbclass: Fix PR increment bug when PR number is a single digit

PRINC which should add to base PR value has a problem when
the PR is single digit e.g. r0 - r9. Current algorithm
needed atleasts 2 digits to successfully populate end and begin
markers.

We reimplement the incrementing algorithm using regular expressions
which addressed the above mentioned problem and
simplifies the logic a bit and gets rid of loops and conditionals

Signed-off-by: Khem Raj <raj.khem at gmail.com>

---

 meta/classes/base.bbclass |   19 ++++++-------------
 1 files changed, 6 insertions(+), 13 deletions(-)

diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
index d9ed15f..23095ec 100644
--- a/meta/classes/base.bbclass
+++ b/meta/classes/base.bbclass
@@ -233,25 +233,18 @@ do_build () {
 }
 
 python () {
-    import exceptions, string
+    import exceptions, string, re
 
     # If PRINC is set, try and increase the PR value by the amount specified
     princ = bb.data.getVar('PRINC', d, True)
     if princ:
         pr = bb.data.getVar('PR', d, True)
-        start = -1
-        end = -1
-        for i in range(len(pr)):
-            if pr[i] in string.digits:
-                if start == -1:
-                    start = i
-                else:
-                    end = i
-        if start == -1 or end == -1:
+        pr_prefix = re.search("\D+",pr)
+        prval = re.search("\d+",pr)
+        if pr_prefix is None or prval is None:
             bb.error("Unable to analyse format of PR variable: %s" % pr)
-        prval = pr[start:end+1]
-        prval = int(prval) + int(princ)
-        pr = pr[0:start] + str(prval) + pr[end:len(pr)-1]
+        nval = int(prval.group(0)) + int(princ)
+        pr = pr_prefix.group(0) + str(nval) + pr[prval.end():]
         bb.data.setVar('PR', pr, d)
 
     pn = bb.data.getVar('PN', d, 1)