contrib/hgk.py
changeset 2432 6877064c72f7
parent 2430 4ccd71b83d5e
child 2433 d09da6fc1061
--- a/contrib/hgk.py	Wed Jun 14 18:27:30 2006 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,339 +0,0 @@
-# Minimal support for git commands on an hg repository
-#
-# Copyright 2005 Chris Mason <mason@suse.com>
-#
-# This software may be used and distributed according to the terms
-# of the GNU General Public License, incorporated herein by reference.
-
-import time, sys, signal, os
-from mercurial import hg, mdiff, fancyopts, commands, ui, util
-
-def dodiff(fp, ui, repo, node1, node2, files=None, match=util.always,
-           changes=None, text=False):
-    def date(c):
-        return time.asctime(time.gmtime(c[2][0]))
-
-    if not changes:
-        changes = repo.changes(node1, node2, files, match=match)
-    modified, added, removed, deleted, unknown = changes
-    if files:
-        modified, added, removed = map(lambda x: filterfiles(files, x),
-                                       (modified, added, removed))
-
-    if not modified and not added and not removed:
-        return
-
-    if node2:
-        change = repo.changelog.read(node2)
-        mmap2 = repo.manifest.read(change[0])
-        date2 = date(change)
-        def read(f):
-            return repo.file(f).read(mmap2[f])
-    else:
-        date2 = time.asctime()
-        if not node1:
-            node1 = repo.dirstate.parents()[0]
-        def read(f):
-            return repo.wfile(f).read()
-
-    change = repo.changelog.read(node1)
-    mmap = repo.manifest.read(change[0])
-    date1 = date(change)
-
-    for f in modified:
-        to = None
-        if f in mmap:
-            to = repo.file(f).read(mmap[f])
-        tn = read(f)
-        fp.write("diff --git a/%s b/%s\n" % (f, f))
-        fp.write(mdiff.unidiff(to, date1, tn, date2, f, None, text=text))
-    for f in added:
-        to = None
-        tn = read(f)
-        fp.write("diff --git /dev/null b/%s\n" % (f))
-        fp.write(mdiff.unidiff(to, date1, tn, date2, f, None, text=text))
-    for f in removed:
-        to = repo.file(f).read(mmap[f])
-        tn = None
-        fp.write("diff --git a/%s /dev/null\n" % (f))
-        fp.write(mdiff.unidiff(to, date1, tn, date2, f, None, text=text))
-
-def difftree(ui, repo, node1=None, node2=None, **opts):
-    """diff trees from two commits"""
-    def __difftree(repo, node1, node2):
-        def date(c):
-            return time.asctime(time.gmtime(c[2][0]))
-
-        if node2:
-            change = repo.changelog.read(node2)
-            mmap2 = repo.manifest.read(change[0])
-            modified, added, removed, deleted, unknown = repo.changes(node1, node2)
-            def read(f): return repo.file(f).read(mmap2[f])
-            date2 = date(change)
-        else:
-            date2 = time.asctime()
-            modified, added, removed, deleted, unknown = repo.changes(node1)
-            if not node1:
-                node1 = repo.dirstate.parents()[0]
-            def read(f): return file(os.path.join(repo.root, f)).read()
-
-        change = repo.changelog.read(node1)
-        mmap = repo.manifest.read(change[0])
-        date1 = date(change)
-        empty = "0" * 40;
-
-        for f in modified:
-            # TODO get file permissions
-            print ":100664 100664 %s %s M\t%s\t%s" % (hg.hex(mmap[f]),
-                                                      hg.hex(mmap2[f]), f, f)
-        for f in added:
-            print ":000000 100664 %s %s N\t%s\t%s" % (empty, hg.hex(mmap2[f]), f, f)
-        for f in removed:
-            print ":100664 000000 %s %s D\t%s\t%s" % (hg.hex(mmap[f]), empty, f, f)
-    ##
-
-    while True:
-        if opts['stdin']:
-            try:
-                line = raw_input().split(' ')
-                node1 = line[0]
-                if len(line) > 1:
-                    node2 = line[1]
-                else:
-                    node2 = None
-            except EOFError:
-                break
-        node1 = repo.lookup(node1)
-        if node2:
-            node2 = repo.lookup(node2)
-        else:
-            node2 = node1
-            node1 = repo.changelog.parents(node1)[0]
-        if opts['patch']:
-            if opts['pretty']:
-                catcommit(repo, node2, "")
-            dodiff(sys.stdout, ui, repo, node1, node2)
-        else:
-            __difftree(repo, node1, node2)
-        if not opts['stdin']:
-            break
-
-def catcommit(repo, n, prefix, changes=None):
-    nlprefix = '\n' + prefix;
-    (p1, p2) = repo.changelog.parents(n)
-    (h, h1, h2) = map(hg.hex, (n, p1, p2))
-    (i1, i2) = map(repo.changelog.rev, (p1, p2))
-    if not changes:
-        changes = repo.changelog.read(n)
-    print "tree %s" % (hg.hex(changes[0]))
-    if i1 != -1: print "parent %s" % (h1)
-    if i2 != -1: print "parent %s" % (h2)
-    date_ar = changes[2]
-    date = int(float(date_ar[0]))
-    lines = changes[4].splitlines()
-    if lines[-1].startswith('committer:'):
-        committer = lines[-1].split(': ')[1].rstrip()
-    else:
-        committer = changes[1]
-
-    print "author %s %s %s" % (changes[1], date, date_ar[1])
-    print "committer %s %s %s" % (committer, date, date_ar[1])
-    print ""
-    if prefix != "":
-        print "%s%s" % (prefix, changes[4].replace('\n', nlprefix).strip())
-    else:
-        print changes[4]
-    if prefix:
-        sys.stdout.write('\0')
-
-def base(ui, repo, node1, node2):
-    """Output common ancestor information"""
-    node1 = repo.lookup(node1)
-    node2 = repo.lookup(node2)
-    n = repo.changelog.ancestor(node1, node2)
-    print hg.hex(n)
-
-def catfile(ui, repo, type=None, r=None, **opts):
-    """cat a specific revision"""
-    # in stdin mode, every line except the commit is prefixed with two
-    # spaces.  This way the our caller can find the commit without magic
-    # strings
-    #
-    prefix = ""
-    if opts['stdin']:
-        try:
-            (type, r) = raw_input().split(' ');
-            prefix = "    "
-        except EOFError:
-            return
-
-    else:
-        if not type or not r:
-            ui.warn("cat-file: type or revision not supplied\n")
-            commands.help_(ui, 'cat-file')
-
-    while r:
-        if type != "commit":
-            sys.stderr.write("aborting hg cat-file only understands commits\n")
-            sys.exit(1);
-        n = repo.lookup(r)
-        catcommit(repo, n, prefix)
-        if opts['stdin']:
-            try:
-                (type, r) = raw_input().split(' ');
-            except EOFError:
-                break
-        else:
-            break
-
-# git rev-tree is a confusing thing.  You can supply a number of
-# commit sha1s on the command line, and it walks the commit history
-# telling you which commits are reachable from the supplied ones via
-# a bitmask based on arg position.
-# you can specify a commit to stop at by starting the sha1 with ^
-def revtree(args, repo, full="tree", maxnr=0, parents=False):
-    def chlogwalk():
-        ch = repo.changelog
-        count = ch.count()
-        i = count
-        l = [0] * 100
-        chunk = 100
-        while True:
-            if chunk > i:
-                chunk = i
-                i = 0
-            else:
-                i -= chunk
-
-            for x in xrange(0, chunk):
-                if i + x >= count:
-                    l[chunk - x:] = [0] * (chunk - x)
-                    break
-                if full != None:
-                    l[x] = ch.read(ch.node(i + x))
-                else:
-                    l[x] = 1
-            for x in xrange(chunk-1, -1, -1):
-                if l[x] != 0:
-                    yield (i + x, full != None and l[x] or None)
-            if i == 0:
-                break
-
-    # calculate and return the reachability bitmask for sha
-    def is_reachable(ar, reachable, sha):
-        if len(ar) == 0:
-            return 1
-        mask = 0
-        for i in range(len(ar)):
-            if sha in reachable[i]:
-                mask |= 1 << i
-
-        return mask
-
-    reachable = []
-    stop_sha1 = []
-    want_sha1 = []
-    count = 0
-
-    # figure out which commits they are asking for and which ones they
-    # want us to stop on
-    for i in range(len(args)):
-        if args[i].startswith('^'):
-            s = repo.lookup(args[i][1:])
-            stop_sha1.append(s)
-            want_sha1.append(s)
-        elif args[i] != 'HEAD':
-            want_sha1.append(repo.lookup(args[i]))
-
-    # calculate the graph for the supplied commits
-    for i in range(len(want_sha1)):
-        reachable.append({});
-        n = want_sha1[i];
-        visit = [n];
-        reachable[i][n] = 1
-        while visit:
-            n = visit.pop(0)
-            if n in stop_sha1:
-                continue
-            for p in repo.changelog.parents(n):
-                if p not in reachable[i]:
-                    reachable[i][p] = 1
-                    visit.append(p)
-                if p in stop_sha1:
-                    continue
-
-    # walk the repository looking for commits that are in our
-    # reachability graph
-    #for i in range(repo.changelog.count()-1, -1, -1):
-    for i, changes in chlogwalk():
-        n = repo.changelog.node(i)
-        mask = is_reachable(want_sha1, reachable, n)
-        if mask:
-            parentstr = ""
-            if parents:
-                pp = repo.changelog.parents(n)
-                if pp[0] != hg.nullid:
-                    parentstr += " " + hg.hex(pp[0])
-                if pp[1] != hg.nullid:
-                    parentstr += " " + hg.hex(pp[1])
-            if not full:
-                print hg.hex(n) + parentstr
-            elif full is "commit":
-                print hg.hex(n) + parentstr
-                catcommit(repo, n, '    ', changes)
-            else:
-                (p1, p2) = repo.changelog.parents(n)
-                (h, h1, h2) = map(hg.hex, (n, p1, p2))
-                (i1, i2) = map(repo.changelog.rev, (p1, p2))
-
-                date = changes[2][0]
-                print "%s %s:%s" % (date, h, mask),
-                mask = is_reachable(want_sha1, reachable, p1)
-                if i1 != -1 and mask > 0:
-                    print "%s:%s " % (h1, mask),
-                mask = is_reachable(want_sha1, reachable, p2)
-                if i2 != -1 and mask > 0:
-                    print "%s:%s " % (h2, mask),
-                print ""
-            if maxnr and count >= maxnr:
-                break
-            count += 1
-
-# git rev-list tries to order things by date, and has the ability to stop
-# at a given commit without walking the whole repo.  TODO add the stop
-# parameter
-def revlist(ui, repo, *revs, **opts):
-    """print revisions"""
-    if opts['header']:
-        full = "commit"
-    else:
-        full = None
-    copy = [x for x in revs]
-    revtree(copy, repo, full, opts['max_count'], opts['parents'])
-
-def view(ui, repo, *etc):
-    "start interactive history viewer"
-    os.chdir(repo.root)
-    os.system(ui.config("hgk", "path", "hgk") + " " + " ".join(etc))
-
-cmdtable = {
-    "view": (view, [], 'hg view'),
-    "debug-diff-tree": (difftree, [('p', 'patch', None, 'generate patch'),
-                            ('r', 'recursive', None, 'recursive'),
-                            ('P', 'pretty', None, 'pretty'),
-                            ('s', 'stdin', None, 'stdin'),
-                            ('C', 'copy', None, 'detect copies'),
-                            ('S', 'search', "", 'search')],
-                            "hg git-diff-tree [options] node1 node2"),
-    "debug-cat-file": (catfile, [('s', 'stdin', None, 'stdin')],
-                 "hg debug-cat-file [options] type file"),
-    "debug-merge-base": (base, [], "hg debug-merge-base node node"),
-    "debug-rev-list": (revlist, [('H', 'header', None, 'header'),
-                           ('t', 'topo-order', None, 'topo-order'),
-                           ('p', 'parents', None, 'parents'),
-                           ('n', 'max-count', 0, 'max-count')],
-                 "hg debug-rev-list [options] revs"),
-}
-
-def reposetup(ui, repo):
-    pass