mercurial/hgweb/webutil.py

i18n: use "encoding.lower()" to normalize specified keywords for log searching

some problematic encoding (e.g.: cp932) uses ASCII alphabet characters
in byte sequence of multi byte characters.

"str.lower()" on such byte sequence may treat distinct characters as
same one, and cause unexpected log matching.

this patch uses "encoding.lower()" instead of "str.lower()" to
normalize strings for compare.

# hgweb/webutil.py - utility library for the web interface.
#
# Copyright 21 May 2005 - (c) 2005 Jake Edge <[e-mail]>
# Copyright 2005-2007 Matt Mackall <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

import os, copy
from mercurial import match, patch, scmutil, error, ui, util
from mercurial.i18n import _
from mercurial.node import hex, nullid

def up(p):
    if p[0] != "/":
        p = "/" + p
    if p[-1] == "/":
        p = p[:-1]
    up = os.path.dirname(p)
    if up == "/":
        return "/"
    return up + "/"

def revnavgen(pos, pagelen, limit, nodefunc):
    def seq(factor, limit=None):
        if limit:
            yield limit
            if limit >= 20 and limit <= 40:
                yield 50
        else:
            yield 1 * factor
            yield 3 * factor
        for f in seq(factor * 10):
            yield f

    navbefore = []
    navafter = []

    last = 0
    for f in seq(1, pagelen):
        if f < pagelen or f <= last:
            continue
        if f > limit:
            break
        last = f
        if pos + f < limit:
            navafter.append(("+%d" % f, hex(nodefunc(pos + f).node())))
        if pos - f >= 0:
            navbefore.insert(0, ("-%d" % f, hex(nodefunc(pos - f).node())))

    navafter.append(("tip", "tip"))
    try:
        navbefore.insert(0, ("(0)", hex(nodefunc('0').node())))
    except error.RepoError:
        pass

    def gen(l):
        def f(**map):
            for label, node in l:
                yield {"label": label, "node": node}
        return f

    return (dict(before=gen(navbefore), after=gen(navafter)),)

def _siblings(siblings=[], hiderev=None):
    siblings = [s for s in siblings if s.node() != nullid]
    if len(siblings) == 1 and siblings[0].rev() == hiderev:
        return
    for s in siblings:
        d = {'node': s.hex(), 'rev': s.rev()}
        d['user'] = s.user()
        d['date'] = s.date()
        d['description'] = s.description()
        d['branch'] = s.branch()
        if util.safehasattr(s, 'path'):
            d['file'] = s.path()
        yield d

def parents(ctx, hide=None):
    return _siblings(ctx.parents(), hide)

def children(ctx, hide=None):
    return _siblings(ctx.children(), hide)

def renamelink(fctx):
    r = fctx.renamed()
    if r:
        return [dict(file=r[0], node=hex(r[1]))]
    return []

def nodetagsdict(repo, node):
    return [{"name": i} for i in repo.nodetags(node)]

def nodebookmarksdict(repo, node):
    return [{"name": i} for i in repo.nodebookmarks(node)]

def nodebranchdict(repo, ctx):
    branches = []
    branch = ctx.branch()
    # If this is an empty repo, ctx.node() == nullid,
    # ctx.branch() == 'default', but branchtags() is
    # an empty dict. Using dict.get avoids a traceback.
    if repo.branchtags().get(branch) == ctx.node():
        branches.append({"name": branch})
    return branches

def nodeinbranch(repo, ctx):
    branches = []
    branch = ctx.branch()
    if branch != 'default' and repo.branchtags().get(branch) != ctx.node():
        branches.append({"name": branch})
    return branches

def nodebranchnodefault(ctx):
    branches = []
    branch = ctx.branch()
    if branch != 'default':
        branches.append({"name": branch})
    return branches

def showtag(repo, tmpl, t1, node=nullid, **args):
    for t in repo.nodetags(node):
        yield tmpl(t1, tag=t, **args)

def showbookmark(repo, tmpl, t1, node=nullid, **args):
    for t in repo.nodebookmarks(node):
        yield tmpl(t1, bookmark=t, **args)

def cleanpath(repo, path):
    path = path.lstrip('/')
    return scmutil.canonpath(repo.root, '', path)

def changectx(repo, req):
    changeid = "tip"
    if 'node' in req.form:
        changeid = req.form['node'][0]
    elif 'manifest' in req.form:
        changeid = req.form['manifest'][0]

    try:
        ctx = repo[changeid]
    except error.RepoError:
        man = repo.manifest
        ctx = repo[man.linkrev(man.rev(man.lookup(changeid)))]

    return ctx

def filectx(repo, req):
    path = cleanpath(repo, req.form['file'][0])
    if 'node' in req.form:
        changeid = req.form['node'][0]
    else:
        changeid = req.form['filenode'][0]
    try:
        fctx = repo[changeid][path]
    except error.RepoError:
        fctx = repo.filectx(path, fileid=changeid)

    return fctx

def listfilediffs(tmpl, files, node, max):
    for f in files[:max]:
        yield tmpl('filedifflink', node=hex(node), file=f)
    if len(files) > max:
        yield tmpl('fileellipses')

def diffs(repo, tmpl, ctx, files, parity, style):

    def countgen():
        start = 1
        while True:
            yield start
            start += 1

    blockcount = countgen()
    def prettyprintlines(diff):
        blockno = blockcount.next()
        for lineno, l in enumerate(diff.splitlines(True)):
            lineno = "%d.%d" % (blockno, lineno + 1)
            if l.startswith('+'):
                ltype = "difflineplus"
            elif l.startswith('-'):
                ltype = "difflineminus"
            elif l.startswith('@'):
                ltype = "difflineat"
            else:
                ltype = "diffline"
            yield tmpl(ltype,
                       line=l,
                       lineid="l%s" % lineno,
                       linenumber="% 8s" % lineno)

    if files:
        m = match.exact(repo.root, repo.getcwd(), files)
    else:
        m = match.always(repo.root, repo.getcwd())

    diffopts = patch.diffopts(repo.ui, untrusted=True)
    parents = ctx.parents()
    node1 = parents and parents[0].node() or nullid
    node2 = ctx.node()

    block = []
    for chunk in patch.diff(repo, node1, node2, m, opts=diffopts):
        if chunk.startswith('diff') and block:
            yield tmpl('diffblock', parity=parity.next(),
                       lines=prettyprintlines(''.join(block)))
            block = []
        if chunk.startswith('diff') and style != 'raw':
            chunk = ''.join(chunk.splitlines(True)[1:])
        block.append(chunk)
    yield tmpl('diffblock', parity=parity.next(),
               lines=prettyprintlines(''.join(block)))

def diffstatgen(ctx):
    '''Generator function that provides the diffstat data.'''

    stats = patch.diffstatdata(util.iterlines(ctx.diff()))
    maxname, maxtotal, addtotal, removetotal, binary = patch.diffstatsum(stats)
    while True:
        yield stats, maxname, maxtotal, addtotal, removetotal, binary

def diffsummary(statgen):
    '''Return a short summary of the diff.'''

    stats, maxname, maxtotal, addtotal, removetotal, binary = statgen.next()
    return _(' %d files changed, %d insertions(+), %d deletions(-)\n') % (
             len(stats), addtotal, removetotal)

def diffstat(tmpl, ctx, statgen, parity):
    '''Return a diffstat template for each file in the diff.'''

    stats, maxname, maxtotal, addtotal, removetotal, binary = statgen.next()
    files = ctx.files()

    def pct(i):
        if maxtotal == 0:
            return 0
        return (float(i) / maxtotal) * 100

    fileno = 0
    for filename, adds, removes, isbinary in stats:
        template = filename in files and 'diffstatlink' or 'diffstatnolink'
        total = adds + removes
        fileno += 1
        yield tmpl(template, node=ctx.hex(), file=filename, fileno=fileno,
                   total=total, addpct=pct(adds), removepct=pct(removes),
                   parity=parity.next())

class sessionvars(object):
    def __init__(self, vars, start='?'):
        self.start = start
        self.vars = vars
    def __getitem__(self, key):
        return self.vars[key]
    def __setitem__(self, key, value):
        self.vars[key] = value
    def __copy__(self):
        return sessionvars(copy.copy(self.vars), self.start)
    def __iter__(self):
        separator = self.start
        for key, value in self.vars.iteritems():
            yield {'name': key, 'value': str(value), 'separator': separator}
            separator = '&'

class wsgiui(ui.ui):
    # default termwidth breaks under mod_wsgi
    def termwidth(self):
        return 80