|
|
#!/usr/bin/env python
|
|
|
#
|
|
|
# This software may be used and distributed according to the terms
|
|
|
# of the GNU General Public License, incorporated herein by reference.
|
|
|
|
|
|
from mercurial.demandload import demandload
|
|
|
demandload(globals(), "os sys sets")
|
|
|
from mercurial import hg
|
|
|
|
|
|
versionstr = "0.0.3"
|
|
|
|
|
|
def lookup_rev(ui, repo, rev=None):
|
|
|
"""returns rev or the checked-out revision if rev is None"""
|
|
|
if not rev is None:
|
|
|
return repo.lookup(rev)
|
|
|
parents = [p for p in repo.dirstate.parents() if p != hg.nullid]
|
|
|
if len(parents) != 1:
|
|
|
ui.warn("unexpected number of parents\n")
|
|
|
ui.warn("please commit or revert\n")
|
|
|
sys.exit(1)
|
|
|
return parents.pop()
|
|
|
|
|
|
def check_clean(ui, repo):
|
|
|
modified, added, removed, deleted, unknown = repo.changes()
|
|
|
if modified or added or removed:
|
|
|
ui.warn("Repository is not clean, please commit or revert\n")
|
|
|
sys.exit(1)
|
|
|
|
|
|
class bisect(object):
|
|
|
"""dichotomic search in the DAG of changesets"""
|
|
|
def __init__(self, ui, repo):
|
|
|
self.repo = repo
|
|
|
self.path = os.path.join(repo.join(""), "bisect")
|
|
|
self.ui = ui
|
|
|
self.goodrevs = []
|
|
|
self.badrev = None
|
|
|
self.good_dirty = 0
|
|
|
self.bad_dirty = 0
|
|
|
self.good_path = os.path.join(self.path, "good")
|
|
|
self.bad_path = os.path.join(self.path, "bad")
|
|
|
|
|
|
s = self.good_path
|
|
|
if os.path.exists(s):
|
|
|
self.goodrevs = self.repo.opener(s).read().splitlines()
|
|
|
self.goodrevs = [hg.bin(x) for x in self.goodrevs]
|
|
|
s = self.bad_path
|
|
|
if os.path.exists(s):
|
|
|
r = self.repo.opener(s).read().splitlines()
|
|
|
if r:
|
|
|
self.badrev = hg.bin(r.pop(0))
|
|
|
|
|
|
def __del__(self):
|
|
|
if not os.path.isdir(self.path):
|
|
|
return
|
|
|
f = self.repo.opener(self.good_path, "w")
|
|
|
f.write("\n".join([hg.hex(r) for r in self.goodrevs]))
|
|
|
if len(self.goodrevs) > 0:
|
|
|
f.write("\n")
|
|
|
f = self.repo.opener(self.bad_path, "w")
|
|
|
if self.badrev:
|
|
|
f.write(hg.hex(self.badrev) + "\n")
|
|
|
|
|
|
def init(self):
|
|
|
"""start a new bisection"""
|
|
|
if os.path.isdir(self.path):
|
|
|
self.ui.warn("bisect directory already exists\n")
|
|
|
return 1
|
|
|
os.mkdir(self.path)
|
|
|
check_clean(self.ui, self.repo)
|
|
|
return 0
|
|
|
|
|
|
def reset(self):
|
|
|
"""finish a bisection"""
|
|
|
if os.path.isdir(self.path):
|
|
|
sl = [self.bad_path, self.good_path]
|
|
|
for s in sl:
|
|
|
if os.path.exists(s):
|
|
|
os.unlink(s)
|
|
|
os.rmdir(self.path)
|
|
|
# Not sure about this
|
|
|
#self.ui.write("Going back to tip\n")
|
|
|
#self.repo.update(self.repo.changelog.tip())
|
|
|
return 1
|
|
|
|
|
|
def num_ancestors(self, head=None, stop=None):
|
|
|
"""
|
|
|
returns a dict with the mapping:
|
|
|
node -> number of ancestors (self included)
|
|
|
for all nodes who are ancestor of head and
|
|
|
not in stop.
|
|
|
"""
|
|
|
if head is None:
|
|
|
head = self.badrev
|
|
|
return self.__ancestors_and_nb_ancestors(head, stop)[1]
|
|
|
|
|
|
def ancestors(self, head=None, stop=None):
|
|
|
"""
|
|
|
returns the set of the ancestors of head (self included)
|
|
|
who are not in stop.
|
|
|
"""
|
|
|
if head is None:
|
|
|
head = self.badrev
|
|
|
return self.__ancestors_and_nb_ancestors(head, stop)[0]
|
|
|
|
|
|
def __ancestors_and_nb_ancestors(self, head, stop=None):
|
|
|
"""
|
|
|
if stop is None then ancestors of goodrevs are used as
|
|
|
lower limit.
|
|
|
|
|
|
returns (anc, n_child) where anc is the set of the ancestors of head
|
|
|
and n_child is a dictionary with the following mapping:
|
|
|
node -> number of ancestors (self included)
|
|
|
"""
|
|
|
cl = self.repo.changelog
|
|
|
if not stop:
|
|
|
stop = sets.Set([])
|
|
|
for g in reversed(self.goodrevs):
|
|
|
if g in stop:
|
|
|
continue
|
|
|
stop.update(cl.reachable(g))
|
|
|
def num_children(a):
|
|
|
"""
|
|
|
returns a dictionnary with the following mapping
|
|
|
node -> [number of children, empty set]
|
|
|
"""
|
|
|
d = {a: [0, sets.Set([])]}
|
|
|
for i in xrange(cl.rev(a)+1):
|
|
|
n = cl.node(i)
|
|
|
if not d.has_key(n):
|
|
|
d[n] = [0, sets.Set([])]
|
|
|
parents = [p for p in cl.parents(n) if p != hg.nullid]
|
|
|
for p in parents:
|
|
|
d[p][0] += 1
|
|
|
return d
|
|
|
|
|
|
if head in stop:
|
|
|
self.ui.warn("Unconsistent state, %s is good and bad\n"
|
|
|
% hg.hex(head))
|
|
|
sys.exit(1)
|
|
|
n_child = num_children(head)
|
|
|
for i in xrange(cl.rev(head)+1):
|
|
|
n = cl.node(i)
|
|
|
parents = [p for p in cl.parents(n) if p != hg.nullid]
|
|
|
for p in parents:
|
|
|
n_child[p][0] -= 1
|
|
|
if not n in stop:
|
|
|
n_child[n][1].union_update(n_child[p][1])
|
|
|
if n_child[p][0] == 0:
|
|
|
n_child[p] = len(n_child[p][1])
|
|
|
if not n in stop:
|
|
|
n_child[n][1].add(n)
|
|
|
if n_child[n][0] == 0:
|
|
|
if n == head:
|
|
|
anc = n_child[n][1]
|
|
|
n_child[n] = len(n_child[n][1])
|
|
|
return anc, n_child
|
|
|
|
|
|
def next(self):
|
|
|
if not self.badrev:
|
|
|
self.ui.warn("You should give at least one bad\n")
|
|
|
sys.exit(1)
|
|
|
if not self.goodrevs:
|
|
|
self.ui.warn("No good revision given\n")
|
|
|
self.ui.warn("Assuming the first revision is good\n")
|
|
|
ancestors, num_ancestors = self.__ancestors_and_nb_ancestors(self.badrev)
|
|
|
tot = len(ancestors)
|
|
|
if tot == 1:
|
|
|
if ancestors.pop() != self.badrev:
|
|
|
self.ui.warn("Could not find the first bad revision\n")
|
|
|
sys.exit(1)
|
|
|
self.ui.write(
|
|
|
"The first bad revision is : %s\n" % hg.hex(self.badrev))
|
|
|
sys.exit(0)
|
|
|
self.ui.write("%d revisions left\n" % tot)
|
|
|
best_rev = None
|
|
|
best_len = -1
|
|
|
for n in ancestors:
|
|
|
l = num_ancestors[n]
|
|
|
l = min(l, tot - l)
|
|
|
if l > best_len:
|
|
|
best_len = l
|
|
|
best_rev = n
|
|
|
return best_rev
|
|
|
|
|
|
def autonext(self):
|
|
|
"""find and update to the next revision to test"""
|
|
|
check_clean(self.ui, self.repo)
|
|
|
rev = self.next()
|
|
|
self.ui.write("Now testing %s\n" % hg.hex(rev))
|
|
|
return self.repo.update(rev, force=True)
|
|
|
|
|
|
def good(self, rev):
|
|
|
self.goodrevs.append(rev)
|
|
|
|
|
|
def autogood(self, rev=None):
|
|
|
"""mark revision as good and update to the next revision to test"""
|
|
|
check_clean(self.ui, self.repo)
|
|
|
rev = lookup_rev(self.ui, self.repo, rev)
|
|
|
self.good(rev)
|
|
|
if self.badrev:
|
|
|
self.autonext()
|
|
|
|
|
|
def bad(self, rev):
|
|
|
self.badrev = rev
|
|
|
|
|
|
def autobad(self, rev=None):
|
|
|
"""mark revision as bad and update to the next revision to test"""
|
|
|
check_clean(self.ui, self.repo)
|
|
|
rev = lookup_rev(self.ui, self.repo, rev)
|
|
|
self.bad(rev)
|
|
|
if self.goodrevs:
|
|
|
self.autonext()
|
|
|
|
|
|
# should we put it in the class ?
|
|
|
def test(ui, repo, rev):
|
|
|
"""test the bisection code"""
|
|
|
b = bisect(ui, repo)
|
|
|
rev = repo.lookup(rev)
|
|
|
ui.write("testing with rev %s\n" % hg.hex(rev))
|
|
|
anc = b.ancestors()
|
|
|
while len(anc) > 1:
|
|
|
if not rev in anc:
|
|
|
ui.warn("failure while bisecting\n")
|
|
|
sys.exit(1)
|
|
|
ui.write("it worked :)\n")
|
|
|
new_rev = b.next()
|
|
|
ui.write("choosing if good or bad\n")
|
|
|
if rev in b.ancestors(head=new_rev):
|
|
|
b.bad(new_rev)
|
|
|
ui.write("it is bad\n")
|
|
|
else:
|
|
|
b.good(new_rev)
|
|
|
ui.write("it is good\n")
|
|
|
anc = b.ancestors()
|
|
|
repo.update(new_rev, force=True)
|
|
|
for v in anc:
|
|
|
if v != rev:
|
|
|
ui.warn("fail to found cset! :(\n")
|
|
|
return 1
|
|
|
ui.write("Found bad cset: %s\n" % hg.hex(b.badrev))
|
|
|
ui.write("Everything is ok :)\n")
|
|
|
return 0
|
|
|
|
|
|
def bisect_run(ui, repo, cmd=None, *args):
|
|
|
"""bisect extension: dichotomic search in the DAG of changesets
|
|
|
for subcommands see "hg bisect help\"
|
|
|
"""
|
|
|
def help_(cmd=None, *args):
|
|
|
"""show help for a given bisect subcommand or all subcommands"""
|
|
|
cmdtable = bisectcmdtable
|
|
|
if cmd:
|
|
|
doc = cmdtable[cmd][0].__doc__
|
|
|
synopsis = cmdtable[cmd][2]
|
|
|
ui.write(synopsis + "\n")
|
|
|
ui.write("\n" + doc + "\n")
|
|
|
return
|
|
|
ui.write("list of subcommands for the bisect extension\n\n")
|
|
|
cmds = cmdtable.keys()
|
|
|
cmds.sort()
|
|
|
m = max([len(c) for c in cmds])
|
|
|
for cmd in cmds:
|
|
|
doc = cmdtable[cmd][0].__doc__.splitlines(0)[0].rstrip()
|
|
|
ui.write(" %-*s %s\n" % (m, cmd, doc))
|
|
|
|
|
|
b = bisect(ui, repo)
|
|
|
bisectcmdtable = {
|
|
|
"init": (b.init, 0, "hg bisect init"),
|
|
|
"bad": (b.autobad, 1, "hg bisect bad [<rev>]"),
|
|
|
"good": (b.autogood, 1, "hg bisect good [<rev>]"),
|
|
|
"next": (b.autonext, 0, "hg bisect next"),
|
|
|
"reset": (b.reset, 0, "hg bisect reset"),
|
|
|
"help": (help_, 1, "hg bisect help [<subcommand>]"),
|
|
|
}
|
|
|
|
|
|
if not bisectcmdtable.has_key(cmd):
|
|
|
ui.warn("bisect: Unknown sub-command\n")
|
|
|
return help_()
|
|
|
if len(args) > bisectcmdtable[cmd][1]:
|
|
|
ui.warn("bisect: Too many arguments\n")
|
|
|
return help_()
|
|
|
return bisectcmdtable[cmd][0](*args)
|
|
|
|
|
|
cmdtable = {
|
|
|
"bisect": (bisect_run, [],
|
|
|
"hg bisect [help|init|reset|next|good|bad]"),
|
|
|
#"bisect-test": (test, [], "hg bisect-test rev"),
|
|
|
}
|
|
|
|
