mirror of
https://github.com/daylinmorgan/task.mk.git
synced 2024-12-22 01:50:44 -06:00
117 lines
4.4 KiB
Markdown
117 lines
4.4 KiB
Markdown
# Usage
|
|
|
|
`Task.mk` will add access to a recipe `help` (also aliased to `h`).
|
|
In order to use `make help` to you will need to add some custom comments to your `Makefile`.
|
|
|
|
Deliberately, I don't get names from recipes themselves.
|
|
This not only greatly simplifies the parsing but add's some opportunity to customize the output.
|
|
Such as to document wildcard or redundant recipes.
|
|
|
|
You can place these anywhere, but I recommend adding these notes directly above their relevant recipes.
|
|
The format is `## <recipe> | <msg>`
|
|
|
|
```make
|
|
## build | build the project
|
|
.PHONY: build
|
|
build:
|
|
...
|
|
```
|
|
|
|
Now when you invoke `make help` it will parse these and generate your help output.
|
|
|
|
In addition to a generic help output you can expose some configuration settings with `make vars`.
|
|
To do so define the variables you'd like to print with `PRINT_VARS := VAR1 VAR2 VAR3`.
|
|
|
|
In addition to the `help` and `vars` recipes you can use a custom make function to format your text for fancier output.
|
|
For this there are two options depending on your needs `tprint` or `tprint-sh`. (`tprint-sh` is for use within a multiline sub-shell that has already been silenced, see the version-check rule of this project's `Makefile` for an example.)
|
|
|
|
|
|
To use `tprint` you call it with the builtin `make` call function.
|
|
It accepts only one argument: an unquoted f-string literal.
|
|
All strings passed to `tprint` have access to an object `ansi` or `a` for simplicity.
|
|
This stores ANSI escape codes which can be used to style your text.
|
|
|
|
```make
|
|
## build | compile the source
|
|
.PHONY: build
|
|
build:
|
|
$(call tprint,{a.cyan}Build Starting{a.end})
|
|
...
|
|
$(call tprint,{a.green}Build Finished{a.end})
|
|
```
|
|
See this projects `make info` for more examples of `tprint`.
|
|
|
|
To see the available colors and formatting(bold,italic,etc.) use the hidden recipe `make _print-ansi`.
|
|
|
|
**Note**: Any help commands starting with an underscore will be ignored.
|
|
To view hidden `tasks` (or recipes in GNU Make land) you can use `make _help`.
|
|
|
|
In addition, you can use custom colors using the builtin `ansi.custom` or (`a.custom`) method.
|
|
It has two optional arguments `fg` and `bg`. Which can be used to specify either an 8-bit color from the [256 colors](https://en.wikipedia.org/wiki/8-bit_color).
|
|
Or a tuple/list to define an RBG 24-bit color, for instance `a.custom(fg=(5,10,255))`.
|
|
See this project's `make info` for an example.
|
|
|
|
## Configuration
|
|
|
|
You can quickly customize some of the default behavior of `task.mk` by overriding the below variables prior to the `-include .task.mk`.
|
|
These can also be included in a seperate file `.task.cfg.mk`.
|
|
|
|
```make
|
|
# ---- [config] ---- #
|
|
HEADER_STYLE ?= b_cyan
|
|
ACCENT_STYLE ?= b_yellow
|
|
PARAMS_STYLE ?= $(ACCENT_STYLE)
|
|
GOAL_STYLE ?= $(ACCENT_STYLE)
|
|
MSG_STYLE ?= faint
|
|
DIVIDER_STYLE ?= default
|
|
DIVIDER ?= ─
|
|
HELP_SEP ?= │
|
|
# python f-string literals
|
|
EPILOG ?=
|
|
USAGE ?={ansi.$(HEADER_STYLE)}usage{ansi.end}:\n make <recipe>\n
|
|
INHERIT_SHELL ?=
|
|
```
|
|
|
|
To use a custom color for one of the predefined configuration variables specify only the custom method.
|
|
|
|
```make
|
|
HEADER_STYLE = custom(fg=171,bg=227)
|
|
```
|
|
|
|
**NOTE**: `HELP_SEP` does not change the argument definitions syntax only the format of `make help`.
|
|
|
|
## Advanced Usage: Embedded Python Scripts
|
|
|
|
You can take advantage of the builtin python script runner and write multi-line python scripts of your own.
|
|
This is a simple example but a few lines of python in your `Makefile`
|
|
may be easier than balancing sub-shells and strung together awk commands.
|
|
|
|
When `make` expands the function it will take the parameters passed to `py` and expand them.
|
|
`$(1)` is the variable name and `$(2)` in this case is the implicit pattern from the rule. Pay attention to quotes.
|
|
If you need to debug your python script, use `TASKMK_DEBUG=1` when you run `make` and it will first print the script that will be piped to `python`.
|
|
|
|
```make
|
|
define list_files_py
|
|
from pathlib import Path
|
|
print("files in $(2)")
|
|
print([f.name for f in (Path("$(2)").iterdir())])
|
|
endef
|
|
|
|
## list-% | use pathlib.Path to list files
|
|
list-%:
|
|
$(call py,list_files_py,$*)
|
|
```
|
|
|
|
For what it's worth there is also a predefined function for `bash` (named `tbash`) as well should you need to accomplish something similar of more easily embedding your bash script rather than having to escape every line with a backslash.
|
|
|
|
```make
|
|
define bash_script
|
|
figlet task.mk 2>/dev/null || echo 'no figlet :('
|
|
echo "This is from bash"
|
|
cat /etc/hostname
|
|
printf "%s\n" "$(2)"
|
|
endef
|
|
.PHONY: test-bash
|
|
test-bash:
|
|
$(call tbash,bash_script,test bash multiline)
|
|
```
|