def run(self, args):
if args.repository:
repository_folder = File(args.repository)
else:
repository_folder = detect_repository(File())
if not repository_folder:
raise Exception("You're not in a repository (or a working "
"folder) right now and you didn't specify "
"--repository.")
if args.working:
working_file = File(args.working)
else:
working_file = detect_working(silent=True)
repository = Repository(repository_folder)
revisions = None
if working_file and working_file.has_xattr(XATTR_BASE) and not args.all:
# We have a working file and we're not displaying all revisions.
# Only show revisions which are ancestors of the working file.
# TODO: Figure out a way to do this without having to reconstruct
# every revision; probably need to have some sort of cache in the
# Repository class of parent-child revision relationships. Still
# thinking a Neo4j database might be useful for this, or maybe some
# sort of equivalent SQLite database.
revisions = set()
base = json.loads(working_file.get_xattr(XATTR_BASE))
current = set(base)
while current:
# Find the revision with the highest number in current
max_hash = max(current, key=lambda r: int(repository.number_for_rev(r)))
revisions.add(max_hash)
current.remove(max_hash)
current |= set(repository.get_revision(max_hash)["parents"])
print
for number, hash, data in repository.revision_iterator():
if revisions is not None and hash not in revisions:
continue
print u"Revision %s:%s:" % (number, hash)
print u" date: %s" % time.ctime(data.get("info", {}).get("date", 0))
print u" type: %s" % data["type"]
if data.get("current_name"):
print u" committed as: %s" % data["current_name"]
for cparent in data["parents"]:
print u" change parent: %s:%s" % (repository.number_for_rev(cparent), cparent)
# for dparent in repository.get_dirparents(hash):
# print " dir parent: %s:%s" % (repository.number_for_rev(dparent), dparent)
try:
print u" message: %s" % data.get("info", {}).get("message", "")
except:
print >>sys.stderr, data
raise
print
def run(self, args):
# The checkout command does something different depending on how it's
# run:
#
# If the working copy (specified with --working or auto-detected)
# exists and -r is specified, the working copy is updated to the
# revision in question.
# If the working copy exists but is not a working copy, it is turned
# into one. Then, if -r is specified, it is updated to the specified
# revision.
# If the working copy does not exist, -r must be specified (so that we
# know whether to create a file or a folder), and the working copy
# will be created and updated to the revision in question.
#
# So, if the working copy does not exist, we require -r and create it.
# Then, if it's not a working copy, we make it one by setting
# XATTR_REPO. Then we go update the working copy to the specified
# revision.
if args.repository:
repository_folder = File(args.repository)
else:
repository_folder = detect_repository()
repository = Repository(repository_folder)
if args.working:
working_file = File(args.working)
else:
working_file = detect_working()
revision = args.revision
# Check to see if the soon-to-be working copy already exists as a file
# or folder
if not working_file.exists:
# It doesn't exist. Make sure we've got a --revision (and error out
# if we don't, since then we don't know whether to create a file or
# a folder).
if revision is None:
raise Exception("When using the checkout command on a working "
"copy that doesn't actually exist yet, --revision must "
"be specified. This is because Filer doesn't know "
"whether to create a folder or a file for it. If you "
"want to create a new, blank working copy without "
"checking one out from a revision, create a file or "
"folder at the relevant location, then use the "
"checkout command again. Then it'll work.")
# We've got a revision, so look at whether it's a file or a folder,
# and create a file or a folder accordingly.
working_type = repository.get_revision(revision)["type"]
if working_type == "file":
# It's a file, so create a blank file for it.
working_file.write("")
else:
# It's a folder, so create a blank folder for it.
working_file.mkdir()
# The working file exists. Now see if it's a working copy.
working = WorkingCopy(repository, working_file)
if not working.is_working():
# It's not a working copy, so make it a working copy.
working.create()
# Now update it. TODO: We might want to keep track of whether it
# already existed before now, and if it did, warn the user that they'll
# be overwriting their changes.
if revision:
if working_file.has_xattr(XATTR_BASE):
base = json.loads(working_file.get_xattr(XATTR_BASE))
else:
base = None
# If we're already checked out, warn if we have multiple parents
# as that'll likely steamroller over an impending merge. TODO:
# might want to recursively walk down and make sure we don't have
# any children that also have impending merges.
if base and len(base) > 1:
if not args.quiet and raw_input("The working copy has multiple parents; this "
"usually means a merge is in progress. Do you still "
"want to check out a new revision and overwrite "
"your changes (y or n)? ").lower()[0] != "y":
print "Stopping."
return
# If we're checked out with one parent, see if the new revision is
# an ancestor of the current revision or vice versa. If not, warn
# that we're jumping history lines. TODO: Don't warn if they're on
# the same changeline, even if they're on disjointed branches of
# the changeline.
elif base and len(base) == 1:
base_rev = base[0]
new_rev = repository.rev_for_number(revision)
if not (repository.is_ancestor(base_rev, new_rev) or
repository.is_ancestor(new_rev, base_rev)):
if not args.quiet and raw_input("The revision you're updating to (%s) is not "
"an ancestor or a descendant of the working "
"copy's current revision (%s). Do you still want "
"to continue updating (y or n)? "
% (new_rev, base_rev)).lower()[0] != "y":
print "Stopping."
return
working.update_to(revision)
print "Checked out revision %r" % revision
else:
print "Resetting working copy to untracked"
delete_tracked(working_file)