SCons builders.
Project description
Miniscons
SCons builders.
Motivation
When writing an SConstruct.py
configuration it is difficult to:
- Specify libraries and warnings for each build since the default environment is global
- Declare executable targets that depend on builds and don't need to be built themselves
- Parse outputs from
conan
to get include paths for build dependencies since they don't appear in the exportedconandeps
- Declare and chain together aliases for external scripts
We can use miniscons
to keep the SConstruct.py
file short and get an interface like this:
builds:
build
tests
targets:
start -> build
test -> tests
scripts:
clang-tidy
cppclean
routines:
lint -> [clang-tidy, cppclean]
flags:
--dump
Installation
pip install miniscons
Documentation
Documentation and more detailed examples are hosted on Github Pages.
Usage
Parse the SConscript_conandeps
if you are using conan
:
from miniscons import conan
env = conan()
Add the builds with their specific warning flags and libs to include:
from miniscons import Build, flags, packages
from walkmate import tree
build = Build(
"build",
tree("src", r"(?<!\.spec)\.cpp$"),
flags("c++11", ["shadow"]),
)
tests = Build(
"tests",
tree("src", r"\.cpp$", ["main.cpp"]),
flags("c++11"),
packages(["gtest"]),
)
Add the executable targets that depend on the builds with their runtime arguments:
from miniscons import Target
start = Target("start", build)
test = Target("test", tests, ["--gtest_brief"])
Add the scripts to invoke your tooling:
from miniscons import Script
from walkmate import tree
cppclean = Script("cppclean", ["."])
includes = tests.packages["CPPPATH"]
tidy = Script(
"clang-tidy",
[tree("src", r"\.(cpp)$"), "--", [f"-I{i}" for i in includes]],
)
Add the routines and flags for your interface:
from miniscons import Flag, Routine
lint = Routine("lint", [cppclean, tidy])
dump = Flag("--dump")
Register all the declarations with the environment and add handlers for each flag:
from miniscons import Tasks
from SCons.Script.Main import GetOption
cli = Tasks(
[build, tests],
[start, test],
[tidy, cppclean],
[lint],
[dump],
)
cli.register(env)
if GetOption("dump"):
cli.dump()
Now if we run
scons --dump
We get our interface:
scons: Reading SConscript files ...
builds:
build
tests
targets:
start -> build
test -> tests
scripts:
clang-tidy
cppclean
routines:
lint -> [clang-tidy, cppclean]
flags:
--dump
Discussion
Why not use a simple task runner for scripts and routines?
Some scripts need access to the include paths that appear in the SConstruct.py
file so they need to be integrated into the scons workflow.
Tooling
Dependencies
To install dependencies:
yarn install
pip install .[all]
Tests
To run tests:
thx test
Documentation
To generate the documentation locally:
thx docs
Linters
To run linters:
thx lint
Formatters
To run formatters:
thx format
Contributing
Please read this repository's Code of Conduct which outlines our collaboration standards and the Changelog for details on breaking changes that have been made.
This repository adheres to semantic versioning standards. For more information on semantic versioning visit SemVer.
Bump2version is used to version and tag changes. For example:
bump2version patch
Contributors
- Joel Lefkowitz - Initial work
Remarks
Lots of love to the open source community!
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