2 The B{0install select} command-line interface.
5 # Copyright (C) 2011, Thomas Leonard
6 # See the README file for details, or visit http://0install.net.
8 from optparse
import OptionParser
12 from zeroinstall
import cmd
, SafeException
, _
13 from zeroinstall
.cmd
import UsageError
14 from zeroinstall
.injector
import model
, autopolicy
, selections
, handler
15 from zeroinstall
.injector
.iface_cache
import iface_cache
19 def add_generic_select_options(parser
):
20 """All options for selecting."""
21 parser
.add_option("", "--before", help=_("choose a version before this"), metavar
='VERSION')
22 parser
.add_option("", "--command", help=_("command to select"), metavar
='COMMAND')
23 parser
.add_option("", "--cpu", help=_("target CPU type"), metavar
='CPU')
24 parser
.add_option("", "--message", help=_("message to display when interacting with user"))
25 parser
.add_option("", "--not-before", help=_("minimum version to choose"), metavar
='VERSION')
26 parser
.add_option("-o", "--offline", help=_("try to avoid using the network"), action
='store_true')
27 parser
.add_option("", "--os", help=_("target operation system type"), metavar
='OS')
28 parser
.add_option("-r", "--refresh", help=_("refresh all used interfaces"), action
='store_true')
29 parser
.add_option("-s", "--source", help=_("select source code"), action
='store_true')
31 def add_options(parser
):
32 """Options for 'select' and 'download' (but not 'run')"""
33 add_generic_select_options(parser
)
34 parser
.add_option("", "--xml", help=_("write selected versions as XML"), action
='store_true')
36 def get_selections(options
, iface_uri
, select_only
, download_only
, test_callback
):
37 """Get selections for iface_uri, according to the options passed.
38 Will switch to GUI mode if necessary.
39 @param options: options from OptionParser
40 @param iface_uri: canonical URI of the interface
41 @param select_only: return immediately even if the selected versions aren't cached
42 @param download_only: wait for stale feeds, and display GUI button as Download, not Run
43 @return: the selected versions, or None if the user cancels
44 @rtype: L{selections.Selections} | None
46 root_iface
= iface_cache
.get_interface(iface_uri
)
49 h
= handler
.ConsoleHandler()
52 h
.dry_run
= bool(options
.dry_run
)
54 command_name
= options
.command
55 if command_name
is None:
57 elif command_name
== '':
59 policy
= autopolicy
.AutoPolicy(iface_uri
,
61 download_only
= True, # unused?
63 command
= command_name
)
65 if options
.before
or options
.not_before
:
66 policy
.solver
.extra_restrictions
[root_iface
] = [
67 model
.VersionRangeRestriction(model
.parse_version(options
.before
),
68 model
.parse_version(options
.not_before
))]
70 if options
.os
or options
.cpu
:
71 from zeroinstall
.injector
import arch
72 policy
.target_arch
= arch
.get_architecture(options
.os
, options
.cpu
)
75 policy
.network_use
= model
.network_offline
77 # Note that need_download() triggers a solve
78 if options
.refresh
or options
.gui
:
79 # We could run immediately, but the user asked us not to
80 can_run_immediately
= False
83 # --select-only: we only care that we've made a selection, not that we've cached the implementations
84 policy
.need_download()
85 can_run_immediately
= policy
.ready
87 can_run_immediately
= not policy
.need_download()
89 stale_feeds
= [feed
for feed
in policy
.solver
.feeds_used
if
90 not feed
.startswith('distribution:') and # Ignore (memory-only) PackageKit feeds
91 policy
.is_stale(iface_cache
.get_feed(feed
))]
93 if download_only
and stale_feeds
:
94 can_run_immediately
= False
96 if can_run_immediately
:
98 if policy
.network_use
== model
.network_offline
:
99 logging
.debug(_("No doing background update because we are in off-line mode."))
101 # There are feeds we should update, but we can run without them.
102 # Do the update in the background while the program is running.
103 from zeroinstall
.injector
import background
104 background
.spawn_background_update(policy
, options
.verbose
> 0)
105 return policy
.solver
.selections
107 # If the user didn't say whether to use the GUI, choose for them.
108 if options
.gui
is None and os
.environ
.get('DISPLAY', None):
110 # If we need to download anything, we might as well
111 # refresh all the feeds first.
112 options
.refresh
= True
113 logging
.info(_("Switching to GUI mode... (use --console to disable)"))
118 # Just changes the button's label
119 gui_args
.append('--download-only')
121 gui_args
.append('--refresh')
122 if options
.not_before
:
123 gui_args
.insert(0, options
.not_before
)
124 gui_args
.insert(0, '--not-before')
126 gui_args
.insert(0, options
.before
)
127 gui_args
.insert(0, '--before')
129 gui_args
.insert(0, '--source')
131 gui_args
.insert(0, options
.message
)
132 gui_args
.insert(0, '--message')
134 gui_args
.insert(0, '--verbose')
135 if options
.verbose
> 1:
136 gui_args
.insert(0, '--verbose')
138 gui_args
.insert(0, options
.cpu
)
139 gui_args
.insert(0, '--cpu')
141 gui_args
.insert(0, options
.os
)
142 gui_args
.insert(0, '--os')
143 if options
.with_store
:
144 for x
in options
.with_store
:
145 gui_args
+= ['--with-store', x
]
147 gui_args
.append('--select-only')
148 if command_name
is not None:
149 gui_args
.append('--command')
150 gui_args
.append(command_name
)
152 from zeroinstall
import helpers
153 sels
= helpers
.get_selections_gui(iface_uri
, gui_args
, test_callback
)
156 return None # Aborted
158 # Note: --download-only also makes us stop and download stale feeds first.
159 downloaded
= policy
.solve_and_download_impls(refresh
= options
.refresh
or download_only
or False,
160 select_only
= select_only
)
162 policy
.handler
.wait_for_blocker(downloaded
)
163 sels
= selections
.Selections(policy
)
167 def handle(options
, args
):
170 iface_uri
= model
.canonical_iface_uri(args
[0])
172 sels
= get_selections(options
, iface_uri
,
173 select_only
= True, download_only
= False, test_callback
= None)
175 sys
.exit(1) # Aborted by user
184 doc
.writexml(sys
.stdout
)
185 sys
.stdout
.write('\n')
187 def show_human(sels
):
188 from zeroinstall
import zerostore
189 done
= set() # detect cycles
190 def print_node(uri
, command
, indent
):
191 if uri
in done
: return
193 impl
= sels
.selections
.get(uri
, None)
194 print indent
+ "- URI:", uri
196 print indent
+ " Version:", impl
.version
198 if impl
.id.startswith('package:'):
199 path
= "(" + impl
.id + ")"
201 path
= impl
.local_path
or iface_cache
.stores
.lookup_any(impl
.digests
)
202 except zerostore
.NotStored
:
203 path
= "(not cached)"
204 print indent
+ " Path:", path
206 deps
= impl
.dependencies
207 if command
is not None:
208 deps
+= sels
.commands
[command
].requires
210 if isinstance(child
, model
.InterfaceDependency
):
211 if child
.qdom
.name
== 'runner':
212 child_command
= command
+ 1
215 print_node(child
.interface
, child_command
, indent
)
217 print indent
+ " No selected version"
221 print_node(sels
.interface
, 0, "")
223 print_node(sels
.interface
, None, "")