reorganize package inorder to emphasize freebase-api as the main one

git-svn-id: http://freebase-python.googlecode.com/svn/trunk@88 5914aa95-5b3a-0410-a3b5-7b719e7fe9b2

1 files changed, 688 insertions, 0 deletions

diff --git a/freebase/fcl/commands.py b/freebase/fcl/commands.py
new file mode 100755
index 0000000..0fdc283
--- /dev/null
+++ b/freebase/fcl/commands.py
@@ -0,0 +1,688 @@
+# ==================================================================
+# Copyright (c) 2007,2008,2009 Metaweb Technologies, Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+#       copyright notice, this list of conditions and the following
+#       disclaimer in the documentation and/or other materials provided
+#       with the distribution.
+# 
+# THIS SOFTWARE IS PROVIDED BY METAWEB TECHNOLOGIES AND CONTRIBUTORS
+# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL METAWEB
+# TECHNOLOGIES OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ====================================================================
+
+import os, sys, re, time
+from fbutil import *
+
+import simplejson
+
+import freebase.rison as rison
+from freebase.api import attrdict
+
+
+def cmd_help(fb, command=None):
+    """get help on commands
+
+    %prog help [cmd]
+    """
+
+    if command is not None:
+        cmd = fb.commands[command]
+        print '   %s: %s' % (cmd.name, cmd.shortdoc)
+        print cmd.doc
+        return
+
+    print """
+the interface to this tool is loosely modeled on the
+"svn" command-line tool.  many commands work slightly
+differently from their unix and svn equivalents - 
+read the doc for the command first.
+
+use "%s help <subcommand>" for help on a particular
+subcommand.
+""" % fb.progpath
+
+    fb.oparser.print_help()
+
+    print 'available subcommands:'
+    cmds = sorted(fb.commands.keys())
+
+    for fk in cmds:
+        cmd = fb.commands[fk]
+        print '   %s: %s' % (cmd.name, cmd.shortdoc)
+
+
+def cmd_wikihelp(fb):
+    """get help on commands in mediawiki markup format
+
+    %prog wikihelp
+    """
+
+    print """usage: %s subcommand [ args ... ]
+
+    the interface to this tool is loosely modeled on the
+    "svn" command-line tool.  many commands work slightly
+    differently from their unix and svn equivalents - 
+    read the doc for the command first.
+    """ % fb.progpath
+
+    print 'subcommands:'
+    for fk in sorted(fb.commands.keys()):
+        cmd = fb.commands[fk]
+
+        # mediawiki markup cares about the difference between
+        #  a blank line and a blank line with a bunch of
+        #  spaces at the start of it.  ewww.
+        doc = re.sub(r'\r?\n {0,8}', '\n        ', cmd.doc)
+
+        print '==== %s %s: %s ====' % (fb.progpath, cmd.name, cmd.shortdoc)
+        print doc
+        print
+
+
+# this command is disabled because it relies on some svn glue that
+# was not sufficiently well thought out.
+def old_cmd_pwid(fb):
+    """show the "current working namespace id"
+
+    %prog pwid
+
+    by default, relative ids can't be resolved.  however, if you
+    run the fb tool from a directory that has the svn property
+    'freebase:id' set, relative ids will be resolved relative
+    to that id.  the idea is that you can create an svn tree
+    that parallels the freebase namespace tree.  
+
+    for example:
+        $ %prog pwid
+
+        $ svn propset freebase:id "/freebase" .
+
+        $ %prog pwid
+        /freebase
+
+    """
+    if fb.cwid is not None:
+        print fb.cwid
+    else:
+        print ''
+
+
+def cmd_ls(fb, path=None):
+    """list the keys in a namespace
+
+    %prog ls [id]
+    """
+    path = fb.absid(path)
+    q = {'id': path,
+         '/type/namespace/keys': [{'value': None,
+                                   'namespace': {
+                                       'id': None,
+                                       'type': []
+                                    },
+                                    'optional':True
+                                   }]
+         }
+
+    r = fb.mss.mqlread(q)
+    if r is None:
+        raise CmdException('query for id %r failed' % path)
+
+    #sys.stdout.write(' '.join([mk.value for mk in r['/type/namespace/keys']]))
+
+    for mk in r['/type/namespace/keys']:
+        print mk.value
+
+    if 0:
+        suffix = ''
+        if ('/type/namespace' in mk.namespace.type
+            or '/type/domain' in mk.namespace.type):
+            suffix = '/'
+        print mk.value, mk.namespace.id+suffix
+
+
+def cmd_mkdir(fb, path):
+    """create a new freebase namespace
+    %prog mkdir id
+
+    create a new instance of /type/namespace at the given
+    point in id space.  if id already exists, it should be
+    a namespace.
+    """
+    path = fb.absid(path)
+    dir,file = dirsplit(path)
+    wq = { 'create': 'unless_exists',
+           'key':{
+               'connect': 'insert',
+               'namespace': dir,
+               'value': file
+               },
+           'name': path,
+           'type': '/type/namespace'
+         }
+
+    r = fb.mss.mqlwrite(wq)
+
+def cmd_ln(fb, src, dst):
+    """create a namespace key
+    %prog ln srcid dstid
+
+    create a new namespace link at dstid to the object
+    currently at srcid.
+    """
+    src = fb.absid(src)
+    dst = fb.absid(dst)
+    dir,file = dirsplit(dst)
+    wq = { 'id': src,
+           'key':{
+               'connect': 'insert',
+               'namespace': dir,
+               'value': file
+               }
+         }
+
+    r = fb.mss.mqlwrite(wq)
+
+
+def cmd_rm(fb, path):
+    """unlink a namespace key
+    %prog rm id
+    
+    remove the /type/key that connects the given id to its
+    parent.  id must be a path for this to make any sense.
+
+    note that is like unix 'unlink' rather than 'rm'.
+    it won't complain if the 'subdirectory' contains data,
+    since that data will still be accessible to other queries.
+    it's not like 'rm -rf' either, because it doesn't
+    disturb anything other than the one directory entry.
+    """
+    path = fb.absid(path)
+    dir,file = dirsplit(path)
+
+    wq = { 'id': path,
+           'key':{
+               'connect': 'delete',
+               'namespace': dir,
+               'value': file
+            }
+         }
+
+    r = fb.mss.mqlwrite(wq)
+
+def cmd_mv(fb, src, dst):
+    """rename srcid to dstid.
+    %prog mv srcid dstid
+
+    equivalent to:
+    $ fb ln <srcid> <dstid>
+    $ fb rm <srcid>
+    """
+    cmd_ln(fb, src, dst)
+    cmd_rm(fb, src)
+
+def cmd_cat(fb, id, include_headers=False):
+    """download a document from freebase to stdout
+    %prog cat id
+
+    equivalent to "%prog get id -".
+    """
+    return cmd_get(fb, id, localfile='-', include_headers=include_headers)
+
+def cmd_get(fb, id, localfile=None, include_headers=False):
+    """download a file from freebase
+    %prog get id [localfile]
+
+    download the document or image with the given id from freebase
+    into localfile.  localfile '-' means stdout.  localfile
+    defaults to a file in the current directory with the same name
+    as the last key in the path, possibly followed by a metadata
+    extension like .html or .txt.
+    """
+    id = fb.absid(id)
+    dir,file = dirsplit_unsafe(id)
+
+    def read_content(id, content_only=False):
+        c = attrdict(id=id)
+        cq = { 'id': id,
+               'type': [],
+               '/common/document/content': None,
+               '/common/document/source_uri': None,
+               '/type/content/media_type': { 'name':None,
+                                             'optional': True },
+               #'/type/content/text_encoding': { 'name':None },
+               '/type/content/blob_id':None,
+             }
+        cd = fb.mss.mqlread(cq)
+        if '/type/content' in cd.type:
+            c.media_type = cd['/type/content/media_type'].name
+            #c.text_encoding = cd['/type/content/text_encoding'].name
+            c.sha256 = cd['/type/content/blob_id']
+            return c
+
+        if content_only:
+            raise CmdException('%s is not a content id' % id)
+
+        cid = cd['/common/document/content']
+        if cid is not None:
+            return read_content(cid, content_only=True)
+
+        # in this case we don't have a content object
+        if cd['/common/document/source_uri'] is not None:
+            return None
+
+        raise CmdException('%s is not a content or document id' % id)
+
+
+    content = read_content(id)
+    log.debug('COBJ %r' % content)
+    if content is not None:
+        fileext = media_type_to_extension.get(content.media_type, None)
+    else:
+        fileext = None
+
+    if localfile == '-':
+        ofp = sys.stdout
+    else:
+        if localfile is None:
+            implicit_outfile = True
+            localfile = file
+        elif re.match(r'[/\\]$', localfile):
+            implicit_outfile = True
+            localfile = localfile + file
+        else:
+            implicit_outfile = False
+        localfile = os.path.abspath(localfile)
+
+        # add file extension based on content-type:
+        #  should be an option to disable this
+        if implicit_outfile and fileext is not None:
+            localfile += '.' + fileext
+
+        # if we didn't explicitly name the output file,
+        #  don't destroy an existing file
+        localfile_base = localfile
+        count = 0
+        while implicit_outfile and os.path.exists(localfile):
+            count += 1
+            localfile = '%s.%d' % (localfile_base, count)
+        ofp = open(localfile, 'wb')
+
+    body = fb.mss.trans(id)
+
+    if include_headers:
+        # XXX show content-type, what else?
+        pass
+
+    ofp.write(body)
+
+    if localfile != '-':
+        print ('%s saved (%d bytes)' % (localfile, len(body)))
+        ofp.close()
+
+
+def cmd_put(fb, localfile, id=None, content_type=None):
+    """upload a document to freebase   -- EXPERIMENTAL
+    %prog put localfile [id] [content-type]
+
+    upload the document or image in localfile to given freebase
+    id.  if localfile is '-' the data will be read from stdin.
+
+    if id is missing or empty, a new document will be created.
+    later the id might default to something computed from localfile
+    and any svn attributes it has.
+
+    output: a single line, the id of the document.
+    """
+    if content_type is None:
+        ext = re.sub('^.*\.([^/.]+)$', r'\1', localfile)
+        media_type = extension_to_media_type.get(ext, None)
+
+        if media_type is None:
+            raise CmdException('could not infer a media type from extension %r: please specify it'
+                               % ext)
+
+        if media_type.startswith('text/'):
+            # this is a bad assumption.  should sniff it?
+            text_encoding = 'utf-8'
+            content_type = '%s;charset=%s' % (media_type, text_encoding)
+        else:
+            content_type = media_type
+
+    new_id = None
+    if id is not None:
+        idinfo = fb.mss.mqlread({ 'id': id, 'type': '/common/document' })
+        if idinfo is None:
+            new_id = id
+            id = None
+
+    body = open(localfile, 'rb').read()
+    r = fb.mss.upload(body, content_type, document_id=id)
+
+    if new_id is None:
+        print r.document
+    else:
+        cmd_ln(fb, r.document, new_id)
+        print new_id
+
+
+def cmd_dump(fb, id):
+    """show all properties of a freebase object
+    %prog dump object_id
+    """
+    id = fb.absid(id)
+
+    import inspect
+
+    r = inspect.inspect_object(fb.mss, id)
+    if r is None:
+        raise CmdException('no match for id %r' % id)
+
+    for k in sorted(r.keys()):
+        vs = r[k]
+        for v in vs:
+            id = v.get('id', '')
+
+            name = '%r' % (v.get('name') or v.get('value'))
+            if name == 'None': name = ''
+
+            type = v.get('type', '')
+            if type == '/type/text':
+                extra = v.get('lang', '')
+            elif type == '/type/key':
+                extra = v.get('namespace', '')
+            else:
+                extra = ''
+
+            fb.trow(k, id, name, type, extra)
+                    
+
+def cmd_pget(fb, id, propid):
+    """get a property of a freebase object  -- EXPERIMENTAL
+    %prog pget object_id property_id
+
+    get the property named by property_id from the object.
+
+    XXX output quoting is not well specified.
+
+    property_id must be a fully qualified id for now.
+
+    prints one line for each match.
+
+    if propid ends in '*' this does a wildcard for a particular type.
+    """
+    id = fb.absid(id)
+    proptype, propkey = dirsplit(propid)
+
+    if propkey != '*':
+        # look up the prop
+        q = { 'id': id,
+               propid: [{}],
+             }
+        r = fb.mss.mqlread(q)
+        for v in r[propid]:
+            if 'value' in v:
+                print v.value
+            else:
+                print v.id
+
+    else:
+        # look up the prop
+        q = { 'id': id,
+               '*': [{}],
+             }
+        if isinstance(proptype, basestring):
+            q['type'] = proptype
+
+        r = fb.mss.mqlread(q)
+
+        for k in sorted(r.keys()):
+            v = r[k];
+            if 'value' in v:
+                print '%s %s' % (k, v.value)
+            else:
+                print '%s %s' % (k, v.id)
+
+def cmd_pdel(fb, id, propid, oldval):
+    """delete a property of a freebase object   -- EXPERIMENTAL
+    %prog pdel object_id property_id oldvalue
+
+    set the property named by property_id on the object.
+    value is an id or a json value.  XXX this is ambiguous.
+
+    property_id must be a fully qualified id for now.
+
+    for now you need to provide a "oldval" argument,
+    later this tool will query and perhaps prompt if the
+    deletion is ambiguous.
+
+    prints a single line, either 'deleted' or 'missing'
+    """
+    return cmd_pset(fb, id, propid, None, oldval)
+
+
+def cmd_touch(fb):
+    """bypass any cached query results the service may have.  use sparingly.
+    """
+    fb.mss.mqlflush()
+
+
+def cmd_pset(fb, id, propkey, val, oldval=None, extra=None):
+    """set a property of a freebase object  -- EXPERIMENTAL
+    %prog pset object_id property_id value
+
+    set the property named by property_id on the object.
+    value is an id or a json value.  XXX this is ambiguous.
+
+    property_id must be a fully qualified id for now.
+
+    if the property should be a unique property, this will
+    write with 'connect:update'.  if the property may have
+    multiple, it is written with 'connect:insert'.
+
+    prints a single line, either 'inserted' or 'present'
+    """
+    id = fb.absid(id)
+
+    propid = fb.absprop(propkey)
+
+    # look up the prop
+    pq = { 'id': propid,
+           'type': '/type/property',
+           'name': None,
+           'unique': None,
+           'expected_type': {
+               'id':   None,
+               'name': None,
+               'default_property': None,
+               'optional': True,
+           },
+         }
+
+    prop = fb.mss.mqlread(pq)
+
+    if prop is None:
+        raise CmdException('can\'t resolve property key %r - use an absolute id' % propid);
+
+    if propid.startswith('/type/object/') or propid.startswith('/type/value/'):
+        propkey = re.sub('/type/[^/]+/', '', propid);
+    else:
+        propkey = propid
+
+    wq = { 'id': id,
+           propkey: {
+           }
+         }
+
+    if val is None:
+        val = oldval
+        wq[propkey]['connect'] = 'delete'
+    elif prop.unique:
+        wq[propkey]['connect'] = 'update'
+    else:
+        wq[propkey]['connect'] = 'insert'
+
+    if prop.expected_type is None:
+        wq[propkey]['id'] = val
+    elif prop.expected_type.id not in value_types:
+        wq[propkey]['id'] = val
+    else:
+        wq[propkey]['value'] = val
+    
+        if prop.expected_type.id == '/type/text':
+            if extra is not None:
+                lang = extra
+            else:
+                lang = '/lang/en'
+            wq[propkey]['lang'] = lang
+    
+        if prop.expected_type.id == '/type/key':
+            if extra is not None:
+                wq[propkey]['namespace'] = extra
+            else:
+                raise CmdException('must specify a namespace to pset /type/key')
+
+    r = fb.mss.mqlwrite(wq)
+    print r[propkey]['connect']
+    
+def cmd_login(fb, username=None, password=None):
+    """login to the freebase service
+    %prog login [username [password]]
+
+    cookies are maintained in a file so
+    they are available to the next invocation.
+    prompts for username and password if not given
+    """
+    import getpass
+    if username is None:
+        sys.stdout.write('freebase.com username: ')
+        username = sys.stdin.readline()
+        if not username:
+            raise CmdException('usernmae required for login')
+        username = re.compile('\n$').sub('', username)
+    if password is None:
+        password = getpass.getpass('freebase.com password: ')
+
+    fb.mss.username = username
+    fb.mss.password = password
+    fb.mss.login()
+
+def cmd_logout(fb):
+    """logout from the freebase service
+    %prog logout
+
+    deletes the login cookies
+    """
+    fb.cookiejar.clear(domain=fb.service_host.split(':')[0])
+
+
+def cmd_find(fb, qstr):
+    """print all ids matching a given constraint.
+
+    if the query string starts with "{" it is treated as json.
+    otherwise it is treated as o-rison.
+
+    %prog find
+    """
+    if qstr.startswith('{'):
+        q = simplejson.loads(qstr)
+    else:
+        q = rison.loads('(' + qstr + ')')
+
+    if 'id' not in q:
+        q['id'] = None
+
+    results = fb.mss.mqlreaditer(q)
+    for r in results:
+        print r.id
+
+def cmd_q(fb, qstr):
+    """run a freebase query.
+
+    if the query string starts with "{" it is treated as json.
+    otherwise it is treated as o-rison.
+
+    dump the result as json.
+    
+    %prog q
+    """
+    if qstr.startswith('{'):
+        q = simplejson.loads(qstr)
+    else:
+        q = rison.loads('(' + qstr + ')')
+
+    # results could be streamed with a little more work
+    results = fb.mss.mqlreaditer(q)
+    print simplejson.dumps(list(results), indent=2)
+
+def cmd_open(fb, id):
+    """open a web browser on the given id.  works on OSX only for now.
+    
+    %prog open /some/id
+    """
+    os.system("open 'http://www.freebase.com/view%s'" % id)
+
+
+def cmd_log(fb, id):
+    """log changes pertaining to a given id.
+
+    INCOMPLETE
+    
+    %prog log /some/id
+    """
+
+    null = None
+    true = True
+    false = False
+
+    baseq = {
+            'type': '/type/link',
+            'source': null,
+            'master_property': null,
+            'attribution': null,
+            'timestamp': null,
+            'operation': null,
+            'valid': null,
+            'sort': '-timestamp'
+        };
+    
+    queries = [
+        {
+        'target_value': { '*': null },
+        'target': { 'id': null, 'name': null, 'optional': true },
+        },
+        {
+        'target': { 'id': null, 'name': null },
+        }]
+
+    for i,q in list(enumerate(queries)):
+        q.update(baseq)
+        queries[i] = [q]
+
+
+    valuesfrom,linksfrom = fb.mss.mqlreadmulti(queries)
+
+    for link in linksfrom:
+        # fb.trow(link.master_property.id, ...)
+        print simplejson.dumps(link, indent=2)
+
+    for link in valuesfrom:
+        # fb.trow(link.master_property.id, ...)
+        print simplejson.dumps(link, indent=2)
+
+