Mercurial > hg > mercurial-crew-with-dirclash
view contrib/hgit @ 820:89985a1b3427
Clean up walk and changes code to use normalised names properly.
New function: commands.pathto returns the relative path from one path
to another. For example, given foo/bar and baz/quux, it will return
../../baz/quux. This new function is used by the walk and status code
to print relative paths correctly.
New command: debugwalk exercises the walk code without doing anything
more.
hg.dirstate.walk now yields normalised names. For example, if you're
in the baz directory and you ask it to walk ../foo/bar/.., it will yield
names starting with foo/.
As a result of this change, all of the other walk and changes methods
in this module also return normalised names.
The util.matcher function now normalises globs and path names, so that
it will match normalised names properly.
Finally, util.matcher uses the non-glob prefix of a glob to tell walk
which directories to scan. Perviously, a glob like foo/* would scan
everything, but only return matches for foo/*. Now, foo/* only scans
under foo (using the globprefix function), which is much faster.
author | Bryan O'Sullivan <bos@serpentine.com> |
---|---|
date | Sun, 31 Jul 2005 17:42:46 -0800 |
parents | d2422f10c136 |
children | 29f17e083e84 |
line wrap: on
line source
#!/usr/bin/env python # # 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 from mercurial import hg, mdiff, fancyopts, commands, ui def difftree(args, ui, repo): def __difftree(repo, files = None, node1 = None, node2 = None): def date(c): return time.asctime(time.gmtime(float(c[2].split(' ')[0]))) if node2: change = repo.changelog.read(node2) mmap2 = repo.manifest.read(change[0]) (c, a, d, u) = repo.changes(node1, node2) def read(f): return repo.file(f).read(mmap2[f]) date2 = date(change) else: date2 = time.asctime() (c, a, d, u) = repo.diffdir(repo.root, 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; if files: c, a, d = map(lambda x: filterfiles(files, x), (c, a, d)) for f in c: # 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 a: print ":000000 100664 %s %s N\t%s\t%s" % (empty, hg.hex(mmap2[f]), f, f) for f in d: print ":100664 000000 %s %s D\t%s\t%s" % (hg.hex(mmap[f]), empty, f, f) ## revs = [] if args: doptions = {} opts = [('p', 'patch', None, 'patch'), ('r', 'recursive', None, 'recursive')] args = fancyopts.fancyopts(args, opts, doptions) if len(args) < 2: help() sys.exit(1) revs.append(repo.lookup(args[0])) revs.append(repo.lookup(args[1])) args = args[2:] if doptions['patch']: commands.dodiff(sys.stdout, ui, repo, args, *revs) else: __difftree(repo, args, *revs) def catcommit(repo, n, prefix): nlprefix = '\n' + prefix; changes = repo.changelog.read(n) (p1, p2) = repo.changelog.parents(n) (h, h1, h2) = map(hg.hex, (n, p1, p2)) (i1, i2) = map(repo.changelog.rev, (p1, p2)) print "tree %s" % (h) if i1 != -1: print "%sparent %s" % (prefix, h1) if i2 != -1: print "%sparent %s" % (prefix, h2) date_ar = changes[2].split(' ') date = int(float(date_ar[0])) print "%sauthor <%s> %s %s" % (prefix, changes[1], date, date_ar[1]) print "%scommitter <%s> %s %s" % (prefix, changes[1], date, date_ar[1]) print prefix if prefix != "": print "%s%s" % (prefix, changes[4].replace('\n', nlprefix).strip()) else: print changes[4] def catfile(args, ui, repo): doptions = {} opts = [('s', 'stdin', None, 'stdin')] args = fancyopts.fancyopts(args, opts, doptions) # 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 doptions['stdin']: try: (type, r) = raw_input().split(' '); prefix = " " except EOFError: return else: if len(args) < 2: help() sys.exit(1) type = args[0] r = args[1] 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 doptions['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): # 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: break 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: break # walk the repository looking for commits that are in our # reachability graph for i in range(repo.changelog.count()-1, -1, -1): n = repo.changelog.node(i) mask = is_reachable(want_sha1, reachable, n) if mask: if not full: print hg.hex(n) elif full is "commit": print hg.hex(n) catcommit(repo, n, ' ') else: changes = repo.changelog.read(n) (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].split(' ')[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(args, repo): doptions = {} opts = [('c', 'commit', None, 'commit'), ('n', 'max-nr', 0, 'max-nr')] args = fancyopts.fancyopts(args, opts, doptions) if doptions['commit']: full = "commit" else: full = None for i in range(1, len(args)): args[i] = '^' + args[i] revtree(args, repo, full, doptions['max-nr']) def catchterm(*args): raise SignalInterrupt def help(): sys.stderr.write("commands:\n") sys.stderr.write(" hgit cat-file [type] sha1\n") sys.stderr.write(" hgit diff-tree [-p] [-r] sha1 sha1\n") sys.stderr.write(" hgit rev-tree [sha1 ... [^stop sha1]]\n") sys.stderr.write(" hgit rev-list [-c] [sha1 [stop sha1]\n") cmd = sys.argv[1] args = sys.argv[2:] u = ui.ui() signal.signal(signal.SIGTERM, catchterm) repo = hg.repository(ui = u) if cmd == "diff-tree": difftree(args, u, repo) elif cmd == "cat-file": catfile(args, u, repo) elif cmd == "rev-tree": revtree(args, repo) elif cmd == "rev-list": revlist(args, repo) elif cmd == "help": help() else: if cmd: sys.stderr.write("unknown command\n\n") help() sys.exit(1) sys.exit(0)