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task.mk
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Usage
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Initializing search
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daylinmorgan/task.mk
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Home
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Usage
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Usage
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Table of contents
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Configuration
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Advanced Usage: Embedded Python Scripts
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Examples
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Check
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Embedded
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Table of contents
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Configuration
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Advanced Usage: Embedded Python Scripts
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< article class = "md-content__inner md-typeset" >
2022-09-19 00:01:42 -05:00
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< svg xmlns = "http://www.w3.org/2000/svg" viewBox = "0 0 24 24" > < path d = "M20.71 7.04c.39-.39.39-1.04 0-1.41l-2.34-2.34c-.37-.39-1.02-.39-1.41 0l-1.84 1.83 3.75 3.75M3 17.25V21h3.75L17.81 9.93l-3.75-3.75L3 17.25Z" / > < / svg >
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< h1 id = "usage" > Usage< / h1 >
< p > < code > Task.mk< / code > will add access to a recipe < code > help< / code > (also aliased to < code > h< / code > ).
In order to use < code > make help< / code > to you will need to add some custom comments to your < code > Makefile< / code > .< / p >
< p > 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.< / p >
< p > You can place these anywhere, but I recommend adding these notes directly above their relevant recipes.
The format is < code > ## < recipe> | < msg> < / code > < / p >
< div class = "highlight" > < pre > < span > < / span > < code > < a id = "__codelineno-0-1" name = "__codelineno-0-1" href = "#__codelineno-0-1" > < / a > < span class = "c" > ## build | build the project< / span >
< a id = "__codelineno-0-2" name = "__codelineno-0-2" href = "#__codelineno-0-2" > < / a > < span class = "nf" > .PHONY< / span > < span class = "o" > :< / span > < span class = "n" > build< / span >
< a id = "__codelineno-0-3" name = "__codelineno-0-3" href = "#__codelineno-0-3" > < / a > < span class = "nf" > build< / span > < span class = "o" > :< / span >
< a id = "__codelineno-0-4" name = "__codelineno-0-4" href = "#__codelineno-0-4" > < / a > ...
< / code > < / pre > < / div >
< p > Now when you invoke < code > make help< / code > it will parse these and generate your help output.< / p >
< p > In addition to a generic help output you can expose some configuration settings with < code > make vars< / code > .
To do so define the variables you'd like to print with < code > PRINT_VARS := VAR1 VAR2 VAR3< / code > .< / p >
< p > In addition to the < code > help< / code > and < code > vars< / code > 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 < code > tprint< / code > or < code > tprint-sh< / code > . (< code > tprint-sh< / code > is for use within a multiline sub-shell that has already been silenced, see the version-check rule of this project's < code > Makefile< / code > for an example.)< / p >
< p > To use < code > tprint< / code > you call it with the builtin < code > make< / code > call function.
It accepts only one argument: an unquoted f-string literal.
All strings passed to < code > tprint< / code > have access to an object < code > ansi< / code > or < code > a< / code > for simplicity.
This stores ANSI escape codes which can be used to style your text.< / p >
< p > < div class = "highlight" > < pre > < span > < / span > < code > < a id = "__codelineno-1-1" name = "__codelineno-1-1" href = "#__codelineno-1-1" > < / a > < span class = "c" > ## build | compile the source< / span >
< a id = "__codelineno-1-2" name = "__codelineno-1-2" href = "#__codelineno-1-2" > < / a > < span class = "nf" > .PHONY< / span > < span class = "o" > :< / span > < span class = "n" > build< / span >
< a id = "__codelineno-1-3" name = "__codelineno-1-3" href = "#__codelineno-1-3" > < / a > < span class = "nf" > build< / span > < span class = "o" > :< / span >
< a id = "__codelineno-1-4" name = "__codelineno-1-4" href = "#__codelineno-1-4" > < / a > < span class = "k" > $(< / span > call tprint,< span class = "o" > {< / span > a.cyan< span class = "o" > }< / span > Build Starting< span class = "o" > {< / span > a.end< span class = "o" > }< / span > < span class = "k" > )< / span >
< a id = "__codelineno-1-5" name = "__codelineno-1-5" href = "#__codelineno-1-5" > < / a > ...
< a id = "__codelineno-1-6" name = "__codelineno-1-6" href = "#__codelineno-1-6" > < / a > < span class = "k" > $(< / span > call tprint,< span class = "o" > {< / span > a.green< span class = "o" > }< / span > Build Finished< span class = "o" > {< / span > a.end< span class = "o" > }< / span > < span class = "k" > )< / span >
< / code > < / pre > < / div >
See this projects < code > make info< / code > for more examples of < code > tprint< / code > .< / p >
< p > To see the available colors and formatting(bold,italic,etc.) use the hidden recipe < code > make _print-ansi< / code > .< / p >
< p > < strong > Note< / strong > : Any help commands starting with an underscore will be ignored.
To view hidden < code > tasks< / code > (or recipes in GNU Make land) you can use < code > make _help< / code > .< / p >
< p > In addition, you can use custom colors using the builtin < code > ansi.custom< / code > or (< code > a.custom< / code > ) method.
It has two optional arguments < code > fg< / code > and < code > bg< / code > . Which can be used to specify either an 8-bit color from the < a href = "https://en.wikipedia.org/wiki/8-bit_color" > 256 colors< / a > .
Or a tuple/list to define an RBG 24-bit color, for instance < code > a.custom(fg=(5,10,255))< / code > .
See this project's < code > make info< / code > for an example.< / p >
< h2 id = "configuration" > Configuration< / h2 >
< p > You can quickly customize some of the default behavior of < code > task.mk< / code > by overriding the below variables prior to the < code > -include .task.mk< / code > .< / p >
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< div class = "highlight" > < pre > < span > < / span > < code > < a id = "__codelineno-2-1" name = "__codelineno-2-1" href = "#__codelineno-2-1" > < / a > < span class = "c" > # ---- [config] ---- #< / span >
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< a id = "__codelineno-2-2" name = "__codelineno-2-2" href = "#__codelineno-2-2" > < / a > < span class = "nv" > HEADER_STYLE< / span > < span class = "o" > ?=< / span > b_cyan
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< a id = "__codelineno-2-3" name = "__codelineno-2-3" href = "#__codelineno-2-3" > < / a > < span class = "nv" > ACCENT_STYLE< / span > < span class = "o" > ?=< / span > b_yellow
< a id = "__codelineno-2-4" name = "__codelineno-2-4" href = "#__codelineno-2-4" > < / a > < span class = "nv" > PARAMS_STYLE< / span > < span class = "o" > ?=< / span > < span class = "k" > $(< / span > ACCENT_STYLE< span class = "k" > )< / span >
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< a id = "__codelineno-2-5" name = "__codelineno-2-5" href = "#__codelineno-2-5" > < / a > < span class = "nv" > GOAL_STYLE< / span > < span class = "o" > ?=< / span > < span class = "k" > $(< / span > ACCENT_STYLE< span class = "k" > )< / span >
< a id = "__codelineno-2-6" name = "__codelineno-2-6" href = "#__codelineno-2-6" > < / a > < span class = "nv" > MSG_STYLE< / span > < span class = "o" > ?=< / span > faint
< a id = "__codelineno-2-7" name = "__codelineno-2-7" href = "#__codelineno-2-7" > < / a > < span class = "nv" > DIVIDER_STYLE< / span > < span class = "o" > ?=< / span > default
< a id = "__codelineno-2-8" name = "__codelineno-2-8" href = "#__codelineno-2-8" > < / a > < span class = "nv" > DIVIDER< / span > < span class = "o" > ?=< / span > ─
< a id = "__codelineno-2-9" name = "__codelineno-2-9" href = "#__codelineno-2-9" > < / a > < span class = "nv" > HELP_SEP< / span > < span class = "o" > ?=< / span > │
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< a id = "__codelineno-2-10" name = "__codelineno-2-10" href = "#__codelineno-2-10" > < / a > < span class = "c" > # python f-string literals< / span >
< a id = "__codelineno-2-11" name = "__codelineno-2-11" href = "#__codelineno-2-11" > < / a > < span class = "nv" > EPILOG< / span > < span class = "o" > ?=< / span >
< a id = "__codelineno-2-12" name = "__codelineno-2-12" href = "#__codelineno-2-12" > < / a > < span class = "nv" > USAGE< / span > < span class = "o" > ?={< / span > ansi.< span class = "k" > $(< / span > HEADER_STYLE< span class = "k" > )< / span > < span class = "o" > }< / span > usage< span class = "o" > {< / span > ansi.end< span class = "o" > }< / span > :< span class = "se" > \n< / span > make < recipe> < span class = "se" > \n< / span >
< a id = "__codelineno-2-13" name = "__codelineno-2-13" href = "#__codelineno-2-13" > < / a > < span class = "nv" > INHERIT_SHELL< / span > < span class = "o" > ?=< / span >
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< / code > < / pre > < / div >
< p > To use a custom color for one of the predefined configuration variables specify only the custom method.< / p >
< div class = "highlight" > < pre > < span > < / span > < code > < a id = "__codelineno-3-1" name = "__codelineno-3-1" href = "#__codelineno-3-1" > < / a > < span class = "nv" > HEADER_STYLE< / span > < span class = "o" > =< / span > custom< span class = "o" > (< / span > < span class = "nv" > fg< / span > < span class = "o" > =< / span > < span class = "m" > 171< / span > ,bg< span class = "o" > =< / span > < span class = "m" > 227< / span > < span class = "o" > )< / span >
< / code > < / pre > < / div >
< p > < strong > NOTE< / strong > : < code > HELP_SEP< / code > does not change the argument definitions syntax only the format of < code > make help< / code > .< / p >
< h2 id = "advanced-usage-embedded-python-scripts" > Advanced Usage: Embedded Python Scripts< / h2 >
< p > 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 < code > Makefile< / code >
may be easier than balancing sub-shells and strung together awk commands.< / p >
< p > When < code > make< / code > expands the function it will take the parameters passed to < code > py< / code > and expand them.
< code > $(1)< / code > is the variable name and < code > $(2)< / code > in this case is the implicit pattern from the rule. Pay attention to quotes.
If you need to debug your python script, use < code > DEBUG=1< / code > when you run < code > make< / code > and it will first print the script that will be piped to < code > python< / code > .< / p >
< div class = "highlight" > < pre > < span > < / span > < code > < a id = "__codelineno-4-1" name = "__codelineno-4-1" href = "#__codelineno-4-1" > < / a > < span class = "cp" > define list_files_py< / span >
< a id = "__codelineno-4-2" name = "__codelineno-4-2" href = "#__codelineno-4-2" > < / a > < span class = "err" > from< / span > < span class = "w" > < / span > < span class = "err" > pathlib< / span > < span class = "w" > < / span > < span class = "err" > import< / span > < span class = "w" > < / span > < span class = "err" > Path< / span > < span class = "w" > < / span >
< a id = "__codelineno-4-3" name = "__codelineno-4-3" href = "#__codelineno-4-3" > < / a > < span class = "err" > print(< / span > < span class = "s2" > " files in $(2)" < / span > < span class = "err" > )< / span > < span class = "w" > < / span >
< a id = "__codelineno-4-4" name = "__codelineno-4-4" href = "#__codelineno-4-4" > < / a > < span class = "err" > print([f.name< / span > < span class = "w" > < / span > < span class = "err" > for< / span > < span class = "w" > < / span > < span class = "err" > f< / span > < span class = "w" > < / span > < span class = "err" > in< / span > < span class = "w" > < / span > < span class = "err" > (Path(< / span > < span class = "s2" > " $(2)" < / span > < span class = "err" > ).iterdir())])< / span > < span class = "w" > < / span >
< a id = "__codelineno-4-5" name = "__codelineno-4-5" href = "#__codelineno-4-5" > < / a > < span class = "cp" > endef< / span >
< a id = "__codelineno-4-6" name = "__codelineno-4-6" href = "#__codelineno-4-6" > < / a >
< a id = "__codelineno-4-7" name = "__codelineno-4-7" href = "#__codelineno-4-7" > < / a > < span class = "c" > ## list-% | use pathlib.Path to list files< / span >
< a id = "__codelineno-4-8" name = "__codelineno-4-8" href = "#__codelineno-4-8" > < / a > < span class = "nf" > list-%< / span > < span class = "o" > :< / span >
< a id = "__codelineno-4-9" name = "__codelineno-4-9" href = "#__codelineno-4-9" > < / a > < span class = "k" > $(< / span > call py,list_files_py,< span class = "nv" > $*< / span > < span class = "k" > )< / span >
< / code > < / pre > < / div >
< p > For what it's worth there is also a predefined function for < code > bash< / code > (named < code > tbash< / code > ) 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.< / p >
< div class = "highlight" > < pre > < span > < / span > < code > < a id = "__codelineno-5-1" name = "__codelineno-5-1" href = "#__codelineno-5-1" > < / a > < span class = "cp" > define bash_script< / span >
< a id = "__codelineno-5-2" name = "__codelineno-5-2" href = "#__codelineno-5-2" > < / a > < span class = "nf" > figlet task.mk 2> /dev/null || echo ' no figlet < / span > < span class = "o" > :< / span > ('
< a id = "__codelineno-5-3" name = "__codelineno-5-3" href = "#__codelineno-5-3" > < / a > < span class = "err" > echo< / span > < span class = "w" > < / span > < span class = "s2" > " This is from bash" < / span > < span class = "w" > < / span >
< a id = "__codelineno-5-4" name = "__codelineno-5-4" href = "#__codelineno-5-4" > < / a > < span class = "err" > cat< / span > < span class = "w" > < / span > < span class = "err" > /etc/hostname< / span > < span class = "w" > < / span >
< a id = "__codelineno-5-5" name = "__codelineno-5-5" href = "#__codelineno-5-5" > < / a > < span class = "err" > printf< / span > < span class = "w" > < / span > < span class = "s2" > " %s\n" < / span > < span class = "w" > < / span > < span class = "s2" > " $(2)" < / span > < span class = "w" > < / span >
< a id = "__codelineno-5-6" name = "__codelineno-5-6" href = "#__codelineno-5-6" > < / a > < span class = "cp" > endef< / span >
< a id = "__codelineno-5-7" name = "__codelineno-5-7" href = "#__codelineno-5-7" > < / a > < span class = "nf" > .PHONY< / span > < span class = "o" > :< / span > < span class = "n" > test< / span > -< span class = "n" > bash< / span >
< a id = "__codelineno-5-8" name = "__codelineno-5-8" href = "#__codelineno-5-8" > < / a > < span class = "nf" > test-bash< / span > < span class = "o" > :< / span >
< a id = "__codelineno-5-9" name = "__codelineno-5-9" href = "#__codelineno-5-9" > < / a > < span class = "k" > $(< / span > call tbash,bash_script,test bash multiline< span class = "k" > )< / span >
< / code > < / pre > < / div >
< hr >
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Last update:
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< span class = "git-revision-date-localized-plugin git-revision-date-localized-plugin-date" > September 21, 2022< / span >
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< br >
Created:
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< span class = "git-revision-date-localized-plugin git-revision-date-localized-plugin-date" > September 5, 2022< / span >
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