comparison mercurial/commands.py @ 343:d7df759d0e97

rework all code using tags

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rework all code using tags

Add three utility functions:

tags(): get (and possibly load) the tags mapping
tagslist(): sort tag,node by revision (aka topologically)
nodetags(): return a list of tags associated with a node (also cached)

Update all the code using tags to use these.

Simplify identify code
 make unknown always visible if printed
 don't ignore tip pseudo-tag

manifest hash: e6deb4d545ad465be7735f9ec43227bcb5e238c7
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342:f7c51058cbb7

            ui.status("\n")
        else:
            ui.status("summary:     %s\n" % description[0])
    ui.status("\n")

def tags_load(repo):
    repo.lookup(0) # prime the cache
    i = repo.tags.items()
    n = []
    for e in i:
        try:
            l = repo.changelog.rev(e[1])
        except KeyError:
            l = -2
        n.append((l, e))
    return n

def help(ui, cmd=None):
    '''show help for a given command or all commands'''
    if cmd:
        try:
            i = find(cmd)

def identify(ui, repo):
    """print information about the working copy"""
    (c, a, d, u) = repo.diffdir(repo.root)
    mflag = (c or a or d or u) and "+" or ""
    parents = [parent for parent in repo.dirstate.parents()
                      if parent != hg.nullid]
    if not parents:
        ui.note("unknown\n")
        return

    tstring = ''
    if not ui.quiet:
        taglist = [e[1] for e in tags_load(repo)]
        tstring = " %s" % ' + '.join([e[0] for e in taglist
                                      if e[0] != 'tip' and e[1] in parents])

    hexfunc = ui.verbose and hg.hex or hg.short
    pstring = '+'.join([hexfunc(parent) for parent in parents])
    ui.write("%s%s%s\n" % (pstring, mflag, tstring))

    for f in d: print "R", f
    for f in u: print "?", f

def tags(ui, repo):
    """list repository tags"""
    n = tags_load(repo)

    n.sort()
    n.reverse()
    i = [ e[1] for e in n ]
    for k, n in i:
        try:
            r = repo.changelog.rev(n)
        except KeyError:
            r = "?"
        print "%-30s %5d:%s" % (k, repo.changelog.rev(n), hg.hex(n))

def tip(ui, repo):
    """show the tip revision"""
    n = repo.changelog.tip()
    show_changeset(ui, repo, changenode=n)

343:d7df759d0e97

            ui.status("\n")
        else:
            ui.status("summary:     %s\n" % description[0])
    ui.status("\n")

def help(ui, cmd=None):
    '''show help for a given command or all commands'''
    if cmd:
        try:
            i = find(cmd)

def identify(ui, repo):
    """print information about the working copy"""
    (c, a, d, u) = repo.diffdir(repo.root)
    mflag = (c or a or d or u) and "+" or ""
    parents = [p for p in repo.dirstate.parents() if p != hg.nullid]
    if not parents:
        ui.write("unknown\n")
        return

    tstring = ''
    if not ui.quiet:
        tags = sum(map(repo.nodetags, parents), [])
        tstring = " " + ' + '.join(tags)

    hexfunc = ui.verbose and hg.hex or hg.short
    pstring = '+'.join([hexfunc(parent) for parent in parents])
    ui.write("%s%s%s\n" % (pstring, mflag, tstring))

    for f in d: print "R", f
    for f in u: print "?", f

def tags(ui, repo):
    """list repository tags"""
    
    l = repo.tagslist()
    l.reverse()
    for t,n in l:
        try:
            r = repo.changelog.rev(n)
        except KeyError:
            r = "?"
        print "%-30s %5d:%s" % (t, repo.changelog.rev(n), hg.hex(n))

def tip(ui, repo):
    """show the tip revision"""
    n = repo.changelog.tip()
    show_changeset(ui, repo, changenode=n)