onnx-mlir/doc/doc_check/README.md

77 lines
3.0 KiB
Markdown
Raw Normal View History

[RFC] Doc-check utility. (#12) * 1. Implement doc-check utility. * 1. Move ONNF installation script to a standalone script file. * 1. Modify build script to install llvm-project next to ONNF. The build script used to install llvm-project inside ONNF, which didn't make sense. * 1. Check out code to ONNF directory. * 1. Pass path parameter correctly. * 1. Debugging buildbot. * 1. Remove debug code. * 1. Update installation instructions in README.md. 2. Enforce consistency with scripts used in testing using doc-check. * 1. Fix error with respect to syntax to build multiple CMake targets. * 1. Move doc-check to doc_check. 2. Remove directive_config in top-level driver. * 1. Build onnf and check-mlir-lit separately because only CMake 3.15+ supports building multiple targets in one cmake --build run. * 1. Use new env variables to locate LLVM-Project. * 1. Documentation nits. * 1. Prettify buildbot scripts. * 1. Fix build script error. * 1. Support exclude_dirs in DocCheck. 2. Add README for DocCheck. * 1. Mark python3 interpreter as required. 2. Use imported interpreter target. * 1. Automatically deduce doc file extension in DocCheckCtx. 2. Rename ctx.open -> ctx.open_doc since it should only be used to open doc file. 3. Always read line in parser, instead of reading lines in driver and then passing it to parser.py. * 1. Rename parser -> doc_parser due to name conflict with python built-in module. 2. Explose doc_check module directory first before importing; otherwise if the doc_check utility is invoked by other script, importing will not work correctly. * 1. Keep renaming parser -> doc_parser. 2. Explicitly define a default configuration parser that parses the configuration into a python dictionary. * 1. Add test for doc-check. 2. Exclude doc-check tests from project dock-check because base directory is different. * 1. Raise ValueError if directive configuration fails to parse. 2. Format code. * Shorten test case documentation. Show example of using same-as-file directive, check with DocCheck. * 1. Shorten test case documentation. 2. More documentation, check documentation with DocCheck. * 1. Add copyright notice. * 1. Make documentation clearer. 2. Prettify build-scripts. * 1. Provide more documentation. 2. Fix some non-compliance with pep8 recommendations. Co-authored-by: Gheorghe-Teodor Bercea <gt.bercea@gmail.com>
2020-01-10 07:35:52 +08:00
# DocCheck
### Goal
DocCheck provides a set of utilities to enforce invariant properties of artifacts (e.g., code snippets or
output of execution) presented in the software documentation. They can be used to ensure that these
artifacts are always compatible and up-to-date with the state of software development.
### Directives
DocCheck provides a set of directives that can be used in documentations to enforce desired invariants.
A directive is a comment with a specific format/syntax to communicate the intent to check certain invariants to the
DocCheck checker. Generally, a directive has the following syntax in markdown:
```markdown
[{directive}]: <> ({configuration})
```
Where {directive} specifies the type of invariance checking intended and {configuration} expresses the specific
parameters of this directive. In general, a directive configuration is expressed using a python dictionary literal,
but special shorthands exist for each directive individually.
##### `same-as-file`:
Use `same-as-file` directive to ensure that the code section following this directive is the same as a source file.
This is useful primarily because testing code snippet in documentation directly is often impossible. However,
unit tests can be written utilizing an exact copy of the code snippet content. We can use `same-as-file` directive
to ensure the code snippet is always the same as its copy used in some unit tests,
`same-as-file` directive supports a convenient short-hand configuration format where the directive configuration can be fully specified using the name of the reference file to check against.
For example, to ensure a code snippet is the same as a unit-tested file `reference.cpp`, use the following directive as shown in the documentation snippet:
[same-as-file]: <> (doc/doc_check/test/same-as-file/simple/README.md)
````markdown
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
[same-as-file]: <> (reference.cpp)
```cpp
#include<iostream>
using namespace std;
int main() {
cout<<"Hello World";
return 0;
}
```
````
In the canonical form of directive configuration (as a python dictionary literal), this directive supports these parameters in it:
`ref` (string): reference file to check against.
`skip-doc` (int): number of lines to skip when checking the documentation.
`skip-ref` (int): number of lines to skip when scanning the reference file.
For example, to ensure the following code snippet is the same as a unit-tested file `reference.cpp`, except for the first 2 lines of the code used in documentation, and the first 3 lines of code used in the reference file, the following directive configuration can be used:
[same-as-file]: <> (doc/doc_check/test/same-as-file/skip-doc-ref/README.md)
````markdown
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
[same-as-file]: <> ({"ref": "reference.cpp", "skip-doc": 2, "skip-ref": 3})
```cpp
// First line unique to documentation
// Second line unique to documentation
#include<iostream>
using namespace std;
int main() {
cout<<"Hello World";
return 0;
}
```
````