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GitHub Actions seems to be hiding colored whitespace, and after lots of attempts I couldn't find a way to work it around. So instead I'm using a perl expression to replace trailing spaces with `·` and tabs with `<TAB>` in the ANSI colored diff output. This ensure that they're visible, and they are properly colored as expected too.
27 lines
1.0 KiB
Bash
Executable File
27 lines
1.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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# This script runs black on all Python files in the repo.
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set -uo pipefail
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# Apply black.
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echo -e "Formatting Python files..."
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PY_FILES=$(git ls-files -- '*SConstruct' '*SCsub' '*.py' ':!:.git/*' ':!:thirdparty/*')
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black -l 120 $PY_FILES
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diff=$(git diff --color)
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# If no diff has been generated all is OK, clean up, and exit.
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if [ -z "$diff" ] ; then
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printf "\e[1;32m*** Files in this commit comply with the black style rules.\e[0m\n"
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exit 0
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fi
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# A diff has been created, notify the user, clean up, and exit.
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printf "\n\e[1;33m*** The following changes must be made to comply with the formatting rules:\e[0m\n\n"
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# Perl commands replace trailing spaces with `·` and tabs with `<TAB>`.
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printf "$diff\n" | perl -pe 's/(.*[^ ])( +)(\e\[m)$/my $spaces="·" x length($2); sprintf("$1$spaces$3")/ge' | perl -pe 's/(.*[^\t])(\t+)(\e\[m)$/my $tabs="<TAB>" x length($2); sprintf("$1$tabs$3")/ge'
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printf "\n\e[1;91m*** Please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\e[0m\n"
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exit 1
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