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Date: Mon, 22 Feb 2010 19:59:28 +0100
From: Pavel Machek <pavel@....cz>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: Jean Delvare <khali@...ux-fr.org>, lasse.collin@...aani.org,
linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: ketchup was Re: [kernel.org users] XZ Migration discussion
On Sun 2010-02-21 14:53:41, Pavel Machek wrote:
> On Tue 2010-02-16 17:27:45, Pavel Machek wrote:
> > Add --only-dl option -- when you want to cache the needed patches but
> > not apply anything yet.
>
> Actually, you'll probably get a better patch if you relace 'only-dl'
> with just 'dl'. Mistaking --only-dl and --dl-only is just too easy.
This should work; save time&bandwidth by using incremental patches
between -rcX.
Is there testsuite for ketchup? It would be useful at this point...
Pavel
--- ketchup.orig 2010-02-16 16:36:51.000000000 +0100
+++ ketchup 2010-02-22 19:53:56.000000000 +0100
@@ -107,19 +107,32 @@
# Functions to parse version strings
def tree(ver):
+ """returns 2.6"""
return float(re.match(r'(\d+\.\d+)', ver).group(1))
+def rawrev(ver):
+ """given 2.6.31 or 2.6.31-rc1 returns 31"""
+ return int(re.match(r'\d+\.\d+\.(\d+)', ver).group(1))
+
def rev(ver):
+ """given 2.6.31 or 2.6.32-rc1 returns 31"""
p = pre(ver)
- r = int(re.match(r'\d+\.\d+\.(\d+)', ver).group(1))
+ r = rawrev(ver)
if p: r = r - 1
return r
def pre(ver):
+ """returns rc5"""
try: return re.match(r'\d+\.\d+\.\d+(\.\d+)?-((rc|pre)\d+)', ver).group(2)
except: return None
+def next_pre(ver, inc = 1):
+ s = pre(ver)
+ i = int(re.match(r'rc(\d+)', s).group(1))
+ return "rc%d" % (i+inc)
+
def post(ver):
+ """given 2.6.27.1 returns 1"""
try: return re.match(r'\d+\.\d+\.\d+\.(\d+)', ver).group(1)
except: return None
@@ -132,9 +145,15 @@
except: return None
def prebase(ver):
+ """returns 2.6.13-rc1"""
return re.match(r'(\d+\.\d+\.\d+((-(rc|pre)|\.)\d+)?)', ver).group(1)
+def preincr(ver):
+ """only use when incremental patches are requested"""
+ return re.match(r'(\d+\.\d+\.\d+((-(rc|pre)|\.).+)?)', ver).group(1)
+
def revbase(ver):
+ """returns 2.6.23 for 2.6.23.15 or 2.6.24-rc5"""
return "%s.%s" % (tree(ver), rev(ver))
def base(ver):
@@ -283,8 +302,12 @@
f = forkname(ver)
p = pre(ver)
+ print "find_info (ver) ", ver, "f=", f
+
s = b
- if f:
+ if re.match(".*rc.*rc.*", ver):
+ s = "%s-incrc" %b
+ elif f:
s = "%s-%s" % (b, f)
elif p:
s = "%s-pre" % b
@@ -297,11 +320,14 @@
if type(i) != type([]):
i = [i]
+ print "version urls i = ", i
+
v = {
'full': ver,
'tree': tree(ver),
'base': base(ver),
- 'prebase': prebase(ver)
+ 'prebase': prebase(ver),
+ 'preincr': preincr(ver),
}
l = []
@@ -399,6 +425,7 @@
def apply_patch(ver, reverse = 0):
"""Find the patch to upgrade from the predecessor of ver to ver and
apply or reverse it."""
+ print 'apply patch ', ver, ' reverse = ', reverse
p = get_patch(ver)
r = ""
if reverse:
@@ -501,6 +528,24 @@
else:
return ver
+def step_rc(a, b):
+ rc1base = "%s.%s" % (tree(b), rawrev(b))
+ print 'stepping from ', a, ' to ', b
+ while pre(a) != pre(b):
+ if pre(a) < pre(b):
+ next = next_pre(a, 1)
+ s = ("%s-%s-%s" % (rc1base, pre(a), next))
+ apply_patch(s)
+ else:
+ next = next_pre(a, -1)
+ s = ("%s-%s-%s" % (rc1base, next, pre(a)))
+ apply_patch(s, 1)
+
+ print "Applying ", s
+
+ a = "%s-%s" % (rc1base, next)
+ print "Should be at ", a
+
def transform(a, b):
if a == b:
qprint("Nothing to do!")
@@ -514,10 +559,25 @@
if fork(a):
apply_patch(a, 1)
a = prebase(a)
+
+ if base(a) == base(b):
+ if pre(a) and pre(b):
+ print a, ' to ', b, ' possible small steps'
+ step_rc(prebase(a), prebase(b))
+ a = prebase(b)
+
if prebase(a) != prebase(b):
- if pre(a):
- apply_patch(a, 1)
- a = base(a)
+ print 'prebase ', a, ' is not prebase ', b
+ if (rev(a) != rev(b)) and pre(a):
+ print 'stepping to release, first'
+ rc1base = "%s.%s" % (tree(a), rawrev(a))
+ rc1 = rc1base + '-rc1'
+ print "Base is ", rc1base, "now at ", a, " should go to ", rc1
+ step_rc(a, rc1)
+ print "Should now be on -rc1"
+ apply_patch(rc1, 1)
+ a = base(rc1)
+ print "Should now be at", a
if post(a) and (post(a) != post(b) or rev(a) != rev(b)):
apply_patch(prebase(a), 1)
@@ -536,9 +596,12 @@
a = base(b)
if pre(b):
- apply_patch(prebase(b))
- a = prebase(b)
-
+ rc1base = "%s.%s" % (tree(b), rawrev(b))
+ rc1 = rc1base + '-rc1'
+ print "Base is ", rc1base, "now at ", a, " should go to ", b
+ apply_patch(rc1)
+ step_rc(rc1, b)
+
if fork(b):
a = apply_patch(b)
@@ -573,6 +636,10 @@
kernel_url + "/v2.6" + "/patch-%(prebase)s.bz2",
r'patch-(.*?).bz2',
1, "current stable kernel series"),
+ '2.6-incrc': (latest_dir,
+ kernel_url + "/v2.6" + "/testing/incr/patch-%(preincr)s.bz2",
+ r'patch-(.*?).bz2',
+ 1, "current stable kernel series prereleases -- incremental"),
'2.6-rc': (latest_dir,
kernel_url + "/v2.6" + "/testing/patch-%(prebase)s.bz2",
r'patch-(.*?).bz2',
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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