def activate():
"""Enter into an environment with support for tab-completion
This command drops you into a subshell, similar to the one
generated via `be in ...`, except no topic is present and
instead it enables tab-completion for supported shells.
See documentation for further information.
https://github.com/mottosso/be/wiki/cli
"""
parent = lib.parent()
cmd = lib.cmd(parent)
# Store reference to calling shell
context = lib.context()
context["BE_SHELL"] = parent
if lib.platform() == "unix":
context["BE_TABCOMPLETION"] = os.path.join(
os.path.dirname(__file__), "_autocomplete.sh").replace("\\", "/")
context.pop("BE_ACTIVE", None)
sys.exit(subprocess.call(cmd, env=context))
def in_(ctx, topics, yes, as_, enter):
"""Set the current topics to `topics`
Environment:
BE_PROJECT: First topic
BE_CWD: Current `be` working directory
BE_TOPICS: Arguments to `in`
BE_DEVELOPMENTDIR: Absolute path to current development directory
BE_PROJECTROOT: Absolute path to current project
BE_PROJECTSROOT: Absolute path to where projects are located
BE_ACTIVE: 0 or 1, indicates an active be environment
BE_USER: Current user, overridden with `--as`
BE_SCRIPT: User-supplied shell script
BE_PYTHON: User-supplied python script
BE_ENTER: 0 or 1 depending on whether the topic was entered
BE_GITHUB_API_TOKEN: Optional GitHub API token
BE_ENVIRONMENT: Space-separated list of user-added
environment variables
BE_TEMPDIR: Directory in which temporary files are stored
BE_PRESETSDIR: Directory in which presets are searched
BE_ALIASDIR: Directory in which aliases are written
BE_BINDING: Binding between template and item in inventory
\b
Usage:
$ be in project topics
"""
topics = map(str, topics) # They enter as unicode
if self.isactive():
lib.echo("ERROR: Exit current project first")
sys.exit(lib.USER_ERROR)
# Determine topic syntax
if len(topics[0].split("/")) == 3:
topic_syntax = lib.FIXED
project = topics[0].split("/")[0]
else:
topic_syntax = lib.POSITIONAL
project = topics[0]
project_dir = _format.project_dir(_extern.cwd(), project)
if not os.path.exists(project_dir):
lib.echo("Project \"%s\" not found. " % project)
lib.echo("\nAvailable:")
ctx.invoke(ls)
sys.exit(lib.USER_ERROR)
# Boot up
context = lib.context(project)
be = _extern.load_be(project)
templates = _extern.load_templates(project)
inventory = _extern.load_inventory(project)
context.update({
"BE_PROJECT": project,
"BE_USER": str(as_),
"BE_ENTER": "1" if enter else "",
"BE_TOPICS": " ".join(topics)
})
# Remap topic syntax, for backwards compatibility
# In cases where the topic is entered in a way that
# differs from the template, remap topic to template.
if any(re.findall("{\d+}", pattern) for pattern in templates.values()):
template_syntax = lib.POSITIONAL
else:
template_syntax = lib.FIXED
if topic_syntax & lib.POSITIONAL and not template_syntax & lib.POSITIONAL:
topics = ["/".join(topics)]
if topic_syntax & lib.FIXED and not template_syntax & lib.FIXED:
topics[:] = topics[0].split("/")
try:
key = be.get("templates", {}).get("key") or "{1}"
item = _format.item_from_topics(key, topics)
binding = _format.binding_from_item(inventory, item)
context["BE_BINDING"] = binding
except IndexError as exc:
lib.echo("At least %s topics are required" % str(exc))
sys.exit(lib.USER_ERROR)
except KeyError as exc:
lib.echo("\"%s\" not found" % item)
if exc.bindings:
lib.echo("\nAvailable:")
for item_ in sorted(exc.bindings,
key=lambda a: (exc.bindings[a], a)):
lib.echo("- %s (%s)" % (item_, exc.bindings[item_]))
sys.exit(lib.USER_ERROR)
# Finally, determine a development directory
# based on the template-, not topic-syntax.
if template_syntax & lib.POSITIONAL:
try:
development_dir = _format.pos_development_directory(
templates=templates,
inventory=inventory,
context=context,
topics=topics,
user=as_,
item=item)
except KeyError as exc:
lib.echo("\"%s\" not found" % item)
if exc.bindings:
lib.echo("\nAvailable:")
for item_ in sorted(exc.bindings,
key=lambda a: (exc.bindings[a], a)):
lib.echo("- %s (%s)" % (item_, exc.bindings[item_]))
sys.exit(lib.USER_ERROR)
else: # FIXED topic_syntax
development_dir = _format.fixed_development_directory(
templates,
inventory,
topics,
as_)
context["BE_DEVELOPMENTDIR"] = development_dir
tempdir = (tempfile.mkdtemp()
if not os.environ.get("BE_TEMPDIR")
else os.environ["BE_TEMPDIR"])
context["BE_TEMPDIR"] = tempdir
# Should it be entered?
if enter and not os.path.exists(development_dir):
create = False
if yes:
create = True
else:
sys.stdout.write("No development directory found. Create? [Y/n]: ")
if raw_input().lower() in ("", "y", "yes"):
create = True
if create:
ctx.invoke(mkdir, dir=development_dir)
else:
sys.stdout.write("Cancelled")
sys.exit(lib.NORMAL)
# Parse be.yaml
if "script" in be:
context["BE_SCRIPT"] = _extern.write_script(
be["script"], tempdir)
if "python" in be:
script = "\n".join(be["python"])
context["BE_PYTHON"] = script
try:
exec script in {"__name__": __name__}
except Exception as e:
lib.echo("ERROR: %s" % e)
invalids = [v for v in context.values() if not isinstance(v, str)]
assert all(isinstance(v, str) for v in context.values()), invalids
# Create aliases
aliases_dir = _extern.write_aliases(
be.get("alias", {}), tempdir)
context["PATH"] = (aliases_dir
+ os.pathsep
+ context.get("PATH", ""))
context["BE_ALIASDIR"] = aliases_dir
# Parse redirects
_format.parse_redirect(
be.get("redirect", {}), topics, context)
# Override inherited context
# with that coming from be.yaml.
if "environment" in be:
parsed = _format.parse_environment(
fields=be["environment"],
context=context,
topics=topics)
context["BE_ENVIRONMENT"] = " ".join(parsed.keys())
context.update(parsed)
if "BE_TESTING" in context:
os.chdir(development_dir)
os.environ.update(context)
else:
parent = lib.parent()
cmd = lib.cmd(parent)
# Store reference to calling shell
context["BE_SHELL"] = parent
try:
sys.exit(subprocess.call(cmd, env=context))
finally:
import shutil
shutil.rmtree(tempdir)
