tahoe-lafs/src/allmydata/scripts/cli.py
2009-02-22 16:42:14 -07:00

468 lines
17 KiB
Python

import os.path, re, sys, fnmatch
from twisted.python import usage
from allmydata.scripts.common import BaseOptions, get_aliases
NODEURL_RE=re.compile("http://([^:]*)(:([1-9][0-9]*))?")
class VDriveOptions(BaseOptions, usage.Options):
optParameters = [
["node-directory", "d", "~/.tahoe",
"Look here to find out which Tahoe node should be used for all "
"operations. The directory should either contain a full Tahoe node, "
"or a file named node.url which points to some other Tahoe node. "
"It should also contain a file named private/aliases which contains "
"the mapping from alias name to root dirnode URI."
],
["node-url", "u", None,
"URL of the tahoe node to use, a URL like \"http://127.0.0.1:3456\". "
"This overrides the URL found in the --node-directory ."],
["dir-cap", None, None,
"Which dirnode URI should be used as the 'tahoe' alias."]
]
def postOptions(self):
# compute a node-url from the existing options, put in self['node-url']
if self['node-directory']:
if sys.platform == 'win32' and self['node-directory'] == '~/.tahoe':
from allmydata.windows import registry
self['node-directory'] = registry.get_base_dir_path()
else:
self['node-directory'] = os.path.expanduser(self['node-directory'])
if self['node-url']:
if (not isinstance(self['node-url'], basestring)
or not NODEURL_RE.match(self['node-url'])):
msg = ("--node-url is required to be a string and look like "
"\"http://HOSTNAMEORADDR:PORT\", not: %r" %
(self['node-url'],))
raise usage.UsageError(msg)
else:
node_url_file = os.path.join(self['node-directory'], "node.url")
self['node-url'] = open(node_url_file, "r").read().strip()
if self['node-url'][-1] != "/":
self['node-url'] += "/"
aliases = get_aliases(self['node-directory'])
if self['dir-cap']:
aliases["tahoe"] = self['dir-cap']
self.aliases = aliases # maps alias name to dircap
class MakeDirectoryOptions(VDriveOptions):
def parseArgs(self, where=""):
self.where = where
longdesc = """Create a new directory, either unlinked or as a subdirectory."""
class AddAliasOptions(VDriveOptions):
def parseArgs(self, alias, cap):
self.alias = alias
self.cap = cap
def getSynopsis(self):
return "%s add-alias ALIAS DIRCAP" % (os.path.basename(sys.argv[0]),)
longdesc = """Add a new alias for an existing directory."""
class CreateAliasOptions(VDriveOptions):
def parseArgs(self, alias):
self.alias = alias
def getSynopsis(self):
return "%s create-alias ALIAS" % (os.path.basename(sys.argv[0]),)
longdesc = """Creates a new directory and adds an alias for it."""
class ListAliasOptions(VDriveOptions):
longdesc = """Displays a table of all configured aliases."""
class ListOptions(VDriveOptions):
optFlags = [
("long", "l", "Use long format: show file sizes, and timestamps"),
("uri", "u", "Show file/directory URIs"),
("readonly-uri", None, "Show readonly file/directory URIs"),
("classify", "F", "Append '/' to directory names, and '*' to mutable"),
("json", None, "Show the raw JSON output"),
]
def parseArgs(self, where=""):
self.where = where
longdesc = """List the contents of some portion of the virtual drive."""
class GetOptions(VDriveOptions):
def parseArgs(self, arg1, arg2=None):
# tahoe get FOO |less # write to stdout
# tahoe get tahoe:FOO |less # same
# tahoe get FOO bar # write to local file
# tahoe get tahoe:FOO bar # same
self.from_file = arg1
self.to_file = arg2
if self.to_file == "-":
self.to_file = None
def getSynopsis(self):
return "%s get VDRIVE_FILE LOCAL_FILE" % (os.path.basename(sys.argv[0]),)
longdesc = """Retrieve a file from the virtual drive and write it to the
local filesystem. If LOCAL_FILE is omitted or '-', the contents of the file
will be written to stdout."""
def getUsage(self, width=None):
t = VDriveOptions.getUsage(self, width)
t += """
Examples:
% tahoe get FOO |less # write to stdout
% tahoe get tahoe:FOO |less # same
% tahoe get FOO bar # write to local file
% tahoe get tahoe:FOO bar # same
"""
return t
class PutOptions(VDriveOptions):
optFlags = [
("mutable", "m", "Create a mutable file instead of an immutable one."),
]
def parseArgs(self, arg1=None, arg2=None):
# cat FILE | tahoe put # create unlinked file from stdin
# cat FILE | tahoe put - # same
# tahoe put bar # create unlinked file from local 'bar'
# cat FILE | tahoe put - FOO # create tahoe:FOO from stdin
# tahoe put bar FOO # copy local 'bar' to tahoe:FOO
# tahoe put bar tahoe:FOO # same
if arg1 is not None and arg2 is not None:
self.from_file = arg1
self.to_file = arg2
elif arg1 is not None and arg2 is None:
self.from_file = arg1 # might be "-"
self.to_file = None
else:
self.from_file = None
self.to_file = None
if self.from_file == "-":
self.from_file = None
def getSynopsis(self):
return "%s put LOCAL_FILE VDRIVE_FILE" % (os.path.basename(sys.argv[0]),)
longdesc = """Put a file into the virtual drive (copying the file's
contents from the local filesystem). If VDRIVE_FILE is missing, upload
the file but do not link it into a directory: prints the new filecap to
stdout. If LOCAL_FILE is missing or '-', data will be copied from stdin.
VDRIVE_FILE is assumed to start with tahoe: unless otherwise specified."""
def getUsage(self, width=None):
t = VDriveOptions.getUsage(self, width)
t += """
Examples:
% cat FILE | tahoe put # create unlinked file from stdin
% cat FILE | tahoe - # same
% tahoe put bar # create unlinked file from local 'bar'
% cat FILE | tahoe put - FOO # create tahoe:FOO from stdin
% tahoe put bar FOO # copy local 'bar' to tahoe:FOO
% tahoe put bar tahoe:FOO # same
% tahoe put bar MUTABLE-FILE-WRITECAP # modify the mutable file in-place
"""
return t
class CpOptions(VDriveOptions):
optFlags = [
("recursive", "r", "Copy source directory recursively."),
("verbose", "v", "Be noisy about what is happening."),
]
def parseArgs(self, *args):
if len(args) < 2:
raise usage.UsageError("cp requires at least two arguments")
self.sources = args[:-1]
self.destination = args[-1]
class RmOptions(VDriveOptions):
def parseArgs(self, where):
self.where = where
def getSynopsis(self):
return "%s rm VDRIVE_FILE" % (os.path.basename(sys.argv[0]),)
class MvOptions(VDriveOptions):
def parseArgs(self, frompath, topath):
self.from_file = frompath
self.to_file = topath
def getSynopsis(self):
return "%s mv FROM TO" % (os.path.basename(sys.argv[0]),)
class LnOptions(VDriveOptions):
def parseArgs(self, frompath, topath):
self.from_file = frompath
self.to_file = topath
def getSynopsis(self):
return "%s ln FROM TO" % (os.path.basename(sys.argv[0]),)
class BackupConfigurationError(Exception):
pass
class BackupOptions(VDriveOptions):
optFlags = [
("verbose", "v", "Be noisy about what is happening."),
("no-backupdb", None, "Do not use the SQLite-based backup-database (always upload all files)."),
("ignore-timestamps", None, "Do not use backupdb timestamps to decide if a local file is unchanged."),
]
vcs_patterns = ('CVS', 'RCS', 'SCCS', '.git', '.gitignore', '.cvsignore', '.svn',
'.arch-ids','{arch}', '=RELEASE-ID', '=meta-update', '=update',
'.bzr', '.bzrignore', '.bzrtags', '.hg', '.hgignore', '_darcs')
def __init__(self):
super(BackupOptions, self).__init__()
self['exclude'] = set()
def parseArgs(self, localdir, topath):
self.from_dir = localdir
self.to_dir = topath
def getSynopsis(Self):
return "%s backup FROM ALIAS:TO" % os.path.basename(sys.argv[0])
def opt_exclude(self, pattern):
"""Ignore files matching a glob pattern. You may give multiple
'--exclude' options."""
g = pattern.strip()
if g:
exclude = self['exclude']
exclude.add(g)
def opt_exclude_from(self, filepath):
"""Ignore file matching glob patterns listed in file, one per
line."""
try:
exclude_file = file(filepath)
except:
raise BackupConfigurationError('Error opening exclude file %r.' % filepath)
try:
for line in exclude_file:
self.opt_exclude(line)
finally:
exclude_file.close()
def opt_exclude_vcs(self):
"""Exclude files and directories used by following version
control systems: 'CVS', 'RCS', 'SCCS', 'SVN', 'Arch',
'Bazaar', 'Mercurial', and 'Darcs'."""
for pattern in self.vcs_patterns:
self.opt_exclude(pattern)
def filter_listdir(self, listdir):
"""Yields non-excluded childpaths in path."""
exclude = self['exclude']
exclude_regexps = [re.compile(fnmatch.translate(pat)) for pat in exclude]
for filename in listdir:
for regexp in exclude_regexps:
if regexp.match(filename):
break
else:
yield filename
longdesc = """Add a versioned backup of the local FROM directory to a timestamped subdir of the (tahoe) TO/Archives directory, sharing as many files and directories as possible with the previous backup. Creates TO/Latest as a reference to the latest backup. Behaves somewhat like 'rsync -a --link-dest=TO/Archives/(previous) FROM TO/Archives/(new); ln -sf TO/Archives/(new) TO/Latest'."""
class WebopenOptions(VDriveOptions):
def parseArgs(self, where=''):
self.where = where
def getSynopsis(self):
return "%s webopen [ALIAS:PATH]" % (os.path.basename(sys.argv[0]),)
longdesc = """Opens a webbrowser to the contents of some portion of the virtual drive."""
class ManifestOptions(VDriveOptions):
optFlags = [
("storage-index", "s", "Only print storage index strings, not pathname+cap"),
("verify-cap", None, "Only print verifycap, not pathname+cap"),
("repair-cap", None, "Only print repaircap, not pathname+cap"),
("raw", "r", "Display raw JSON data instead of parsed"),
]
def parseArgs(self, where=''):
self.where = where
def getSynopsis(self):
return "%s manifest [ALIAS:PATH]" % (os.path.basename(sys.argv[0]),)
longdesc = """Print a list of all files/directories reachable from the given starting point."""
class StatsOptions(VDriveOptions):
optFlags = [
("raw", "r", "Display raw JSON data instead of parsed"),
]
def parseArgs(self, where=''):
self.where = where
def getSynopsis(self):
return "%s stats [ALIAS:PATH]" % (os.path.basename(sys.argv[0]),)
longdesc = """Print statistics about of all files/directories reachable from the given starting point."""
class CheckOptions(VDriveOptions):
optFlags = [
("raw", None, "Display raw JSON data instead of parsed"),
("verify", None, "Verify all hashes, instead of merely querying share presence"),
("repair", None, "Automatically repair any problems found"),
("add-lease", None, "Add/renew lease on all shares"),
]
def parseArgs(self, where=''):
self.where = where
def getSynopsis(self):
return "%s check [ALIAS:PATH]" % (os.path.basename(sys.argv[0]),)
longdesc = """Check a single file or directory: count how many shares are available, verify their hashes. Optionally repair the file if any problems were found."""
class DeepCheckOptions(VDriveOptions):
optFlags = [
("raw", None, "Display raw JSON data instead of parsed"),
("verify", None, "Verify all hashes, instead of merely querying share presence"),
("repair", None, "Automatically repair any problems found"),
("add-lease", None, "Add/renew lease on all shares"),
("verbose", "v", "Be noisy about what is happening."),
]
def parseArgs(self, where=''):
self.where = where
def getSynopsis(self):
return "%s deep-check [ALIAS:PATH]" % (os.path.basename(sys.argv[0]),)
longdesc = """Check all files/directories reachable from the given starting point (which must be a directory), like 'tahoe check' but for multiple files. Optionally repair any problems found."""
subCommands = [
["mkdir", None, MakeDirectoryOptions, "Create a new directory"],
["add-alias", None, AddAliasOptions, "Add a new alias cap"],
["create-alias", None, CreateAliasOptions, "Create a new alias cap"],
["list-aliases", None, ListAliasOptions, "List all alias caps"],
["ls", None, ListOptions, "List a directory"],
["get", None, GetOptions, "Retrieve a file from the virtual drive."],
["put", None, PutOptions, "Upload a file into the virtual drive."],
["cp", None, CpOptions, "Copy one or more files."],
["rm", None, RmOptions, "Unlink a file or directory in the virtual drive."],
["mv", None, MvOptions, "Move a file within the virtual drive."],
["ln", None, LnOptions, "Make an additional link to an existing file."],
["backup", None, BackupOptions, "Make target dir look like local dir."],
["webopen", None, WebopenOptions, "Open a webbrowser to the root_dir"],
["manifest", None, ManifestOptions, "List all files/dirs in a subtree"],
["stats", None, StatsOptions, "Print statistics about all files/dirs in a subtree"],
["check", None, CheckOptions, "Check a single file or directory"],
["deep-check", None, DeepCheckOptions, "Check all files/directories reachable from a starting point"],
]
def mkdir(options):
from allmydata.scripts import tahoe_mkdir
rc = tahoe_mkdir.mkdir(options)
return rc
def add_alias(options):
from allmydata.scripts import tahoe_add_alias
rc = tahoe_add_alias.add_alias(options)
return rc
def create_alias(options):
from allmydata.scripts import tahoe_add_alias
rc = tahoe_add_alias.create_alias(options)
return rc
def list_aliases(options):
from allmydata.scripts import tahoe_add_alias
rc = tahoe_add_alias.list_aliases(options)
return rc
def list(options):
from allmydata.scripts import tahoe_ls
rc = tahoe_ls.list(options)
return rc
def get(options):
from allmydata.scripts import tahoe_get
rc = tahoe_get.get(options)
if rc == 0:
if options.to_file is None:
# be quiet, since the file being written to stdout should be
# proof enough that it worked, unless the user is unlucky
# enough to have picked an empty file
pass
else:
print >>options.stderr, "%s retrieved and written to %s" % \
(options.from_file, options.to_file)
return rc
def put(options):
from allmydata.scripts import tahoe_put
rc = tahoe_put.put(options)
return rc
def cp(options):
from allmydata.scripts import tahoe_cp
rc = tahoe_cp.copy(options)
return rc
def rm(options):
from allmydata.scripts import tahoe_rm
rc = tahoe_rm.rm(options)
return rc
def mv(options):
from allmydata.scripts import tahoe_mv
rc = tahoe_mv.mv(options, mode="move")
return rc
def ln(options):
from allmydata.scripts import tahoe_mv
rc = tahoe_mv.mv(options, mode="link")
return rc
def backup(options):
from allmydata.scripts import tahoe_backup
rc = tahoe_backup.backup(options)
return rc
def webopen(options, opener=None):
from allmydata.scripts import tahoe_webopen
rc = tahoe_webopen.webopen(options, opener=opener)
return rc
def manifest(options):
from allmydata.scripts import tahoe_manifest
rc = tahoe_manifest.manifest(options)
return rc
def stats(options):
from allmydata.scripts import tahoe_manifest
rc = tahoe_manifest.stats(options)
return rc
def check(options):
from allmydata.scripts import tahoe_check
rc = tahoe_check.check(options)
return rc
def deepcheck(options):
from allmydata.scripts import tahoe_check
rc = tahoe_check.deepcheck(options)
return rc
dispatch = {
"mkdir": mkdir,
"add-alias": add_alias,
"create-alias": create_alias,
"list-aliases": list_aliases,
"ls": list,
"get": get,
"put": put,
"cp": cp,
"rm": rm,
"mv": mv,
"ln": ln,
"backup": backup,
"webopen": webopen,
"manifest": manifest,
"stats": stats,
"check": check,
"deep-check": deepcheck,
}