Mercurial > hg > mercurial-crew-with-dirclash
view hgext/hgk.py @ 2439:e8c4f3d3df8c
extend network protocol to stop clients from locking servers
now all repositories have capabilities slot, tuple with list of names.
if 'unbundle' capability present, repo supports push where client does
not need to lock server. repository classes that have unbundle capability
also have unbundle method.
implemented for ssh now, will be base for push over http.
unbundle protocol acts this way. server tells client what heads it
has during normal negotiate step. client starts unbundle by repeat
server's heads back to it. if server has new heads, abort immediately.
otherwise, transfer changes to server. once data transferred, server
locks and checks heads again. if heads same, changes can be added.
else someone else added heads, and server aborts.
if client wants to force server to add heads, sends special heads list of
'force'.
author | Vadim Gelfer <vadim.gelfer@gmail.com> |
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date | Thu, 15 Jun 2006 16:37:23 -0700 |
parents | 6877064c72f7 |
children | c49dc6f38a19 |
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# 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