def run(self, args):
location = File(args.location)
if args.plain:
repository_folder = location
else:
location.mkdirs()
repository_folder = location.child(".filer")
init_repository(repository_folder)
if not args.plain:
repository = Repository(repository_folder)
working = WorkingCopy(repository, location)
working.create()
print "Repository created at %r." % repository_folder.path
def run(self, args):
# This is basically as simple as getting the working file and the
# repository and committing a new revision on them.
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()
info = {"date": time.time(), "message": args.message}
working = WorkingCopy(repository, working_file)
# Keep track of the old base (which will be None if the working copy
# is untracked) and compare it later on to see if anything changed
if working_file.has_xattr(XATTR_BASE):
base = json.loads(working_file.check_xattr(XATTR_BASE))
else:
base = None
working.commit(info)
if not working_file.has_xattr(XATTR_BASE):
# This can happen when the working file itself isn't tracked, which
# is rare but happens if the user checks out a new, blank working
# copy but doesn't add it with the add command. In that case, we
# print a friendly warning.
print "The working copy isn't being tracked. You probably need to "
print "`filer add %s` first." % working_file.path
else:
new_base = json.loads(working_file.check_xattr(XATTR_BASE))
hash = new_base[0]
if new_base != base:
print "Committed revision %s:%s." % (repository.number_for_rev(hash), hash)
else:
print "No changes to be committed."
print "If you copied new files into the working copy that you "
print "expected to show up, make sure to `filer add` them first."
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)
