# project.conf
# Unique project name
name: test

# Required BuildStream format version
format-version: 16

# Subdirectory where elements are stored
element-path: elements

# Define an alias
aliases:
  gitlab: https://gitlab.com/

# elemnts/base.bst
kind: junction
description: |

    Base image.

sources:
- kind: git
  url: gitlab:freedesktop-sdk/freedesktop-sdk
  ref: 18.08

# elements/test.bst
kind: stack

depends:
- junction: base.bst
  filename: desktop.bst

# >> bst build test.bst
Traceback (most recent call last):
      File "/home/raoulhidalgo/.local/bin/bst", line 8, in <module>
        sys.exit(cli())
      File "/home/raoulhidalgo/.local/lib/python3.5/site-packages/click/core.py", line 722, in __call__
        return self.main(*args, **kwargs)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/_frontend/cli.py", line 162, in override_main
        standalone_mode=standalone_mode, **extra)
      File "/home/raoulhidalgo/.local/lib/python3.5/site-packages/click/core.py", line 697, in main
        rv = self.invoke(ctx)
      File "/home/raoulhidalgo/.local/lib/python3.5/site-packages/click/core.py", line 1066, in invoke
        return _process_result(sub_ctx.command.invoke(sub_ctx))
      File "/home/raoulhidalgo/.local/lib/python3.5/site-packages/click/core.py", line 895, in invoke
        return ctx.invoke(self.callback, **ctx.params)
      File "/home/raoulhidalgo/.local/lib/python3.5/site-packages/click/core.py", line 535, in invoke
        return callback(*args, **kwargs)
      File "/home/raoulhidalgo/.local/lib/python3.5/site-packages/click/decorators.py", line 27, in new_func
        return f(get_current_context().obj, *args, **kwargs)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/_frontend/cli.py", line 330, in build
        build_all=all_)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/_stream.py", line 184, in build
        dynamic_plan=True)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/_stream.py", line 873, in _load
        fetch_subprojects=fetch_subprojects)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/_pipeline.py", line 111, in load
        fetch_subprojects=fetch_subprojects)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/_project.py", line 325, in load_elements
        for meta in meta_elements
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/_project.py", line 325, in <listcomp>
        for meta in meta_elements
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/element.py", line 898, in _new_from_meta
        dependency = Element._new_from_meta(meta_dep, artifacts)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/element.py", line 898, in _new_from_meta
        dependency = Element._new_from_meta(meta_dep, artifacts)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/element.py", line 898, in _new_from_meta
        dependency = Element._new_from_meta(meta_dep, artifacts)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/element.py", line 898, in _new_from_meta
        dependency = Element._new_from_meta(meta_dep, artifacts)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/element.py", line 898, in _new_from_meta
        dependency = Element._new_from_meta(meta_dep, artifacts)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/element.py", line 898, in _new_from_meta
        dependency = Element._new_from_meta(meta_dep, artifacts)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/element.py", line 898, in _new_from_meta
        dependency = Element._new_from_meta(meta_dep, artifacts)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/element.py", line 901, in _new_from_meta
        dependency = Element._new_from_meta(meta_dep, artifacts)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/element.py", line 901, in _new_from_meta
        dependency = Element._new_from_meta(meta_dep, artifacts)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/element.py", line 898, in _new_from_meta
        dependency = Element._new_from_meta(meta_dep, artifacts)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/element.py", line 898, in _new_from_meta
        dependency = Element._new_from_meta(meta_dep, artifacts)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/element.py", line 898, in _new_from_meta
        dependency = Element._new_from_meta(meta_dep, artifacts)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/element.py", line 888, in _new_from_meta
        first_pass=meta.first_pass)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/_project.py", line 253, in create_source
        return self.config.source_factory.create(self._context, self, meta)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/_sourcefactory.py", line 60, in create
        source_type, _ = self.lookup(meta.kind)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/_plugincontext.py", line 77, in lookup
        return self._ensure_plugin(kind)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/_plugincontext.py", line 161, in _ensure_plugin
        self._types[kind] = self._load_plugin(source, kind, defaults)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/_plugincontext.py", line 170, in _load_plugin
        plugin = source.load_plugin(kind)
      File "/home/raoulhidalgo/.local/lib/python3.5/site-packages/pluginbase.py", line 302, in load_plugin
        globals(), {}, ['__name__'])
      File "/home/raoulhidalgo/.local/lib/python3.5/site-packages/pluginbase.py", line 439, in plugin_import
        fromlist, level)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/plugins/sources/ostree.py", line 57, in <module>
        from buildstream import _ostree
      File "/home/raoulhidalgo/.local/lib/python3.5/site-packages/pluginbase.py", line 439, in plugin_import
        fromlist, level)
      File "/home/raoulhidalgo/Documents/buildstream/buildstream/buildstream/_ostree.py", line 36, in <module>
        gi.require_version('OSTree', '1.0')
      File "/usr/lib/python3/dist-packages/gi/__init__.py", line 118, in require_version
        raise ValueError('Namespace %s not available' % namespace)
    ValueError: Namespace OSTree not available