cphang99 opened a new issue, #1891:
URL: https://github.com/apache/buildstream/issues/1891
## How to reproduce
Using a nested junction reference (or referencing it from a `link` element)
results in the following python exception traceback occurring:
```shell
[--:--:--][ ][ main:core activity ] BUG 'dict'
object has no attribute 'clone'
Traceback (most recent call last):
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_loader/loader.py",
line 409, in _load_one_file
element = self._elements[filename]
KeyError: 'components/libyaml.bst'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/christopherphang/.pyenv/versions/bst2/bin/bst", line 8, in
<module>
sys.exit(cli())
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/click/core.py",
line 1157, in __call__
return self.main(*args, **kwargs)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_frontend/cli.py",
line 271, in override_main
original_main(self, args=args, prog_name=prog_name,
complete_var=None, standalone_mode=standalone_mode, **extra)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/click/core.py",
line 1078, in main
rv = self.invoke(ctx)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/click/core.py",
line 1688, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/click/core.py",
line 1434, in invoke
return ctx.invoke(self.callback, **ctx.params)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/click/core.py",
line 783, in invoke
return __callback(*args, **kwargs)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/click/decorators.py",
line 45, in new_func
return f(get_current_context().obj, *args, **kwargs)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_frontend/cli.py",
line 521, in build
app.stream.build(
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_stream.py",
line 397, in build
elements = self._load(
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_stream.py",
line 1641, in _load
elements, except_elements, artifacts =
self._load_elements_from_targets(
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_stream.py",
line 1456, in _load_elements_from_targets
elements, except_elements = self._load_elements([element_names,
except_targets])
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_stream.py",
line 1406, in _load_elements
elements = self._project.load_elements(targets)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_project.py",
line 431, in load_elements
load_elements = self.loader.load(targets)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_loader/loader.py",
line 132, in load
element = loader._load_file(name, None)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_loader/loader.py",
line 498, in _load_file
dep_element = loader._load_file(dep.name, dep.node)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_loader/loader.py",
line 466, in _load_file
top_element = self._load_one_file(filename, provenance_node,
load_subprojects=load_subprojects)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_loader/loader.py",
line 421, in _load_one_file
element = self._load_file_no_deps(filename, provenance_node)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_loader/loader.py",
line 313, in _load_file_no_deps
self.project.ensure_fully_loaded()
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_project.py",
line 485, in ensure_fully_loaded
self.junction._get_project().ensure_fully_loaded()
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_project.py",
line 487, in ensure_fully_loaded
self._load_second_pass()
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_project.py",
line 832, in _load_second_pass
self._project_includes.process(project_conf_second_pass,
process_project_options=False)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_includes.py",
line 46, in process
self._process(node, only_local=only_local,
process_project_options=process_project_options)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_includes.py",
line 66, in _process
self._process_node(
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_includes.py",
line 105, in _process_node
include_node, file_path, sub_loader = self._include_file(include,
current_loader)
File
"/home/christopherphang/.pyenv/versions/3.10.4/envs/bst2/lib/python3.10/site-packages/buildstream/_includes.py",
line 175, in _include_file
variables_node = current_loader.project.base_variables.clone()
AttributeError: 'dict' object has no attribute 'clone'
```
This can be achieved by having an element that references a nested junction
element directly:
```yaml
- foo-junction.bst:freedesktop-sdk.bst:components/libyaml.bst
```
Even if the junction element is referenced via a link element, so:
`freedesktop-sdk.bst`
```yaml
kind: link
config:
target: foo-junction.bst:freedesktop-sdk.bst
```
and then:
```yaml
- freedesktop-sdk.bst:components/libyaml.bst
```
results in the same error.
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