Add update-control.py helper script to rename packages

This script from libboost helps convert all package names from the
old ABI name to the new one - thanks to Jan Blunck for the initial
conversion!

Change-Id: I6c74fab9f3122cae464ac0bc705bfb32c9f1227d
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>

diff --git a/debian/update-control.py b/debian/update-control.py
new file mode 100644 (file)
index 0000000..1f0d39a
--- /dev/null
+++ b/debian/update-control.py
@@ -0,0 +1,82 @@
+#! /usr/bin/env python
+#
+# based on https://anonscm.debian.org/viewvc/pkg-boost/boost/trunk/debian/update-control.py
+#
+
+import sys
+reload(sys)
+sys.setdefaultencoding('utf-8')
+
+from deb822 import Deb822
+import re
+
+gOldVersion = None
+gNewVersion = None
+
+class DpdkVersion:
+    def __init__(self, version):
+        (self.Major,self.Minor) = version.split('.')
+        self.PackageVersion = self.Major + '.' + self.Minor
+
+def replaceVersion(string, ver1, ver2):
+    '''Search 'string' for a DpdkVersion ver1.  If
+    SharedObjectVersion or PackageVersion of ver1 is found, replace by
+    corresponding ver2 version string.  Return the updated string.'''
+    string = re.sub(ver1.PackageVersion, ver2.PackageVersion, string)
+    return string
+
+def updateVersionedValue(paragraph, key):
+    if not paragraph.has_key(key): return
+    oldValue = paragraph[key]
+    paragraph[key] = replaceVersion(paragraph[key], gOldVersion, gNewVersion)
+    return (oldValue, paragraph[key])
+
+def conflictsWithPrevious(paragraph):
+    if not paragraph.has_key('Conflicts'): return False
+    nameRe = re.sub('\d', '\\d', paragraph['Package'])
+    return re.search(nameRe, paragraph['Conflicts']) is not None
+
+def updateConflicts(paragraph, oldPkgName):
+    newPkgName = paragraph['Package']
+    needsConflict = (newPkgName.endswith("-dev") and not newPkgName.endswith("-all-dev")) or conflictsWithPrevious(paragraph)
+    if not needsConflict: return
+    if paragraph.has_key('Conflicts'):
+        if paragraph['Conflicts'].find(oldPkgName) == -1:
+            paragraph['Conflicts'] += ', ' + oldPkgName
+    else:
+        paragraph['Conflicts'] = oldPkgName
+
+def processSourceParagraph(p):
+    updateVersionedValue(p, 'Source')
+
+def processPackageParagraph(p):
+    (oldPkgName, newPkgName) = updateVersionedValue(p, 'Package')
+    updateVersionedValue(p, 'Depends')
+    updateVersionedValue(p, 'Recommends')
+    updateVersionedValue(p, 'Suggests')
+    updateConflicts(p, oldPkgName)
+
+def printParagraph(p):
+    for key in p.keys():
+        print "%s: %s" % (key, p[key])
+
+def processControl():
+    firstParagraph = True
+    for paragraph in Deb822.iter_paragraphs(open('control')):
+        if firstParagraph:
+            processSourceParagraph(paragraph)
+            printParagraph(paragraph)
+            firstParagraph = False
+        else:
+            processPackageParagraph(paragraph)
+            print
+            printParagraph(paragraph)
+
+if len(sys.argv) < 3:
+    print "Usage: cd debian/; %s <old version> <new version> > control_new" % sys.argv[0]
+    exit(1)
+
+gOldVersion = DpdkVersion(sys.argv[1])
+gNewVersion = DpdkVersion(sys.argv[2])
+processControl()
+print