I recently more often view generated SVGs in #Emacs

- build system task dependency graph like https://codeberg.org/harald/pythonbuilder#dependency-graph-of-pythonbuilder-s-build
- class dependency graph for a TypeScript project generated from https://github.com/PSeitz/ts-dependency-graph

In both cases it would be great if clicking on a node would result in some emacs command being called.

Any ideas?

#pythonbuilder #tsDependencyGraph #graphviz #svg

Why a build script instead of a straight normal script?

A build shall not run tasks which are unnecessary
- because the input did not change since last time and
- the output is the same as last time produced (e.g. file not deleted or modified)
Call it "guarded execution".

But most build systems introduce a new language. Why?

I use Pythonbuilder for Java, Python, Typescript. It is plain Python plus guarded execution.

https://codeberg.org/harald/pythonbuilder#img-src-config-pythonbuilder-logo-png-width-60-pythonbuilder-mdash-pythonic-project-builder

#pythonbuilder #buildsystem #buildtool #dev

Having the freedom to chose my work environment on the computer, I move more and more tasks to Emacs recently, like running terminal windows with https://codeberg.org/harald/terminal-frame . Another pet of mine is my python build system: https://codeberg.org/harald/pythonbuilder

The latter can produce a nice SVG graph, using #graphviz, of the dependency tree of the build setup.

And should I forget which targets the build has, it is just a C-x C-f dependencies.svg away to see that graph.😀

#emacs #terminal_frame #pythonbuilder

Pythonbuilder update. Removes a feature described in the last post about #pythonbuilder. 🤦‍♀️ But we have new features which are hopefully better:😎

- Save build state of successfully created targets even if the build stops with an exception.
- Simplify state computation for Paths object. A Paths object is a bit like a combination of a Path + rglob.

https://codeberg.org/harald/pythonbuilder

Feedback welcome.

#pythonbuilder
#buildmachine
#bashbuilder
#buildsystem
#buildtool
#softwaredevelopment
#programming

A pythonbuilder update adds a technical feature hard to describe if you haven't used the software. I try anyway:

So far you could define that a file, using a much simplified example, Path("build/README.html") is a Target to be build by writing

Target(Path("build/README.html"), ...)

With the new feature, that first argument of Target may be a Callable.

https://codeberg.org/harald/pythonbuilder

#pythonbuilder
#buildmachine
#bashbuilder
#buildsystem
#buildtool
#softwaredevelopment
#programming

Nice, lazy import in Python on the way.

https://peps.python.org/pep-0810/

Though I must say that pythonbuilder (https://codeberg.org/harald/pythonbuilder ) is able to start up, define ~20 targets, analyze them, and if there is nothing to do, finish in around 50ms. Lazy loading might hardly improve it, but lets see.

#python #pythonbuilder #lazyimport

Pythonbuilder update available.

A maintenance release with code cleanup. See the commits from v-2025-09-21 to v-2025-09-26: https://codeberg.org/harald/pythonbuilder/graph

The one publicly visible change should be that fields of the Target class got Final type hints as needed. This would show up for brave souls writing to these fields (nobody should) **and** using a type checker.😀

https://codeberg.org/harald/pythonbuilder

#pythonbuilder
#buildmachine
#bashbuilder
#buildsystem
#buildtool
#softwaredevelopment
#programming

Pythonbuilder got some updates since Aug-21st.

- It is now a regular python package which should need less sys.path wrestling to use it.
- The Paths class, a Path combined with an iterator over contained files, can now be created with extensive file include/exclude and directory include/exclude regular expression patterns.

https://docs.miamao.de/@main/pythonbuilder/pythonbuilder.pbutil.Paths.html#filtered

https://codeberg.org/harald/pythonbuilder

#pythonbuilder
#buildmachine
#bashbuilder
#buildsystem
#buildtool
#softwaredevelopment
#programming

Most build systems have their own syntax to write build scripts with the twist that functions are only run if their output could differ from the last call.

I turned this upside-down thing on its feet again, providing a Python library to run functions only if needed.

So your build script is just a Python script, but still does not run functions unnecessarily.

https://codeberg.org/harald/pythonbuilder

#pythonbuilder #buildtool #cmake #gradle #ant #buildautomation