How to identify the source's revision?

[Daniel(原志)]

Oh, this match utility can NOT work.  It have ever workable.
Is there anyone know.

By the way, Matt, could u put it in default extension?

--- my ~/.hgrc begin
[extensions]
match= ~/tool/for_hg/match.py
--- my ~/.hgrc end

The error message is:

  File "match.py", line 10, in match
    data1 = repo[None][fname].data()

TypeError: 'parentrevspecrepo' object is unsubscriptable


On Sat, Jun 28, 2008 at 9:40 AM, Daniel(原志) <dlin.tw at gmail.com> wrote:

> Thank you very much.
> The file match is useful to me.
>
>
> On Sat, Jun 28, 2008 at 12:32 AM, Matt Mackall <mpm at selenic.com> wrote:
>
>>
>> On Fri, 2008-06-27 at 10:52 -0500, Matt Mackall wrote:
>> > There's no good shortcut for "compare a given file with all revisions
>> > of a file", no. That would make for a clever little extension.
>>
>> And I hacked one together:
>>
>> $ hg cat -r 3000 mercurial/localrepo.py > l
>> $ hg --config "extensions.match=" match l mercurial/localrepo.py
>>  0.00%   2967:eef469259745 tag: shorten hash in default commit message
>>  0.41%   3019:aebc3f64b20f fix incorrect warning when walking on a
>> particular r
>>  1.39%   2965:96d034d02d61 Demote a pull note to a debug message
>>  1.44%   3035:4d0e0f149581 localrepo: move the repo creation code, fail if
>> the
>>  1.58%   2961:5bb65c3945a3 localrepo.status: detect clean files even when
>> the m
>>  1.63%   3072:bc3fe3b5b785 Never apply string formatting to generated
>> errors wi
>>  1.94%   3079:4c9fcb5e3b82 If local repository is missing, make error
>> message c
>>  2.01%   2887:05257fd28591 filelog: add hash-based comparisons
>>  2.05%   3132:81da3c45aabd Move defaultrev into changectx
>>  2.23%   2875:3d6efcbbd1c9 remove localrepository.changes.
>>
>> This will work after I push out some other changes I've got queued:
>>
>> # match.py - extension to find the best matching file revision
>>
>> from mercurial.i18n import gettext as _
>> from mercurial import mdiff
>>
>> def match(ui, repo, fname, fname2=None):
>>    '''find the best file match against all revisions'''
>>    data1 = repo[None][fname].data()
>>    f = fname2 or fname
>>    fl = repo.file(f)
>>
>>    stats = []
>>    for r in fl:
>>        n = fl.node(r)
>>        data2 = fl.read(n)
>>        length = 0
>>        d = mdiff.unidiff(data1, "", data2, "", "a", "b")
>>        for l in d.split('\n'):
>>            if (l.startswith("+") and not l.startswith("+++ ") or
>>                l.startswith("-") and not l.startswith("--- ")):
>>                length += len(l) - 1
>>        stats.append((length, fl.linkrev(n)))
>>
>>    stats.sort()
>>    for l, r in stats[:10]:
>>        pct = 100.0 * l / len(data1 or " ")
>>        c = repo[r]
>>        d = c.description().splitlines()[0][:52]
>>        ui.write("% 5.2f%% % 6d:%s %s\n" % (pct, r, str(c), d))
>>
>> cmdtable = {"match": (match, [], 'hg match file [file]')}
>>
>> --
>> Mathematics is the supreme nostalgia of our time.
>>
>>
>
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