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#! /usr/bin/env sh
# NOTE: This is the line length of the .licensure.yml header template **plus** the extra
# line after the template comment.
TEMPLATE_LINE_LENGTH=20
LATEX_TEMPLATE_LINE_LENGTH=9
PROJECT_ROOT="$(git rev-parse --show-toplevel)"
remove() {
extension="$1"
file="$2"
# We need to differentiate, when removing the old copyright header, as some
# formatters do weird things to the file
case "$extension" in
# normal '#' comments (these are $TEMPLATE_LINE_LENGTH lines long)
"Makefile" | "toml" | "envrc" | "yml" | "gitignore" | "awk")
sed --in-place "1,${TEMPLATE_LINE_LENGTH}d" "$file"
;;
# LaTeX files (or TeX files in general) have a different license, use the
# $LATEX_TEMPLATE_LINE_LENGTH variable.
"tex")
sed --in-place "1,${LATEX_TEMPLATE_LINE_LENGTH}d" "$file"
;;
# normal '/* ... */' like comments (these are $TEMPLATE_LINE_LENGTH + 2 lines long)
"c" | "h" | "md" | "rs")
length="$((TEMPLATE_LINE_LENGTH + 2))"
sed --in-place "1,${length}d;" "$file"
;;
# alejandra (the nix formatter) removes the blank line after the comment,
# thus only $TEMPLATE_LINE_LENGTH - 1 lines
"nix")
length="$((TEMPLATE_LINE_LENGTH - 1))"
sed --in-place "1,${length}d;" "$file"
;;
# Shell needs a shebang on the first line, only after the first line can we
# remove the $TEMPLATE_LINE_LENGTH lines
"sh")
sed --in-place "2,${TEMPLATE_LINE_LENGTH}d;" "$file"
licensure --in-place "$file"
TEMPLATE_LINE_LENGTH_NEW="$(($(yq --raw-output '.licenses | map(.template) | join("")' "$PROJECT_ROOT/.licensure.yml" | wc -l) + $(yq '.comments | last | .commenter.trailing_lines' "$PROJECT_ROOT/.licensure.yml")))"
# delete the current shebang
to="$((TEMPLATE_LINE_LENGTH_NEW + 1))"
sed --in-place "${TEMPLATE_LINE_LENGTH_NEW},${to}d;" "$file"
# add a new one
sed --in-place "1i#! /usr/bin/env sh" "$file"
;;
*)
echo "File '$file' with extension '$extension' is not know yet, please add it!"
;;
esac
}
list() {
echo "$extension -> $file"
}
if [ -f "$1" ]; then
file="$(realpath "$1")"
filename="$(basename -- "$file")"
extension="${filename##*.}"
filename="${filename%.*}"
if [ -n "$DRY_RUN" ]; then
list "$extension" "$file"
else
remove "$extension" "$file"
fi
else
fd --type file --hidden . | while read -r file; do
if grep --quiet 'SPDX-License-Identifier' "$file"; then
filename="$(basename -- "$file")"
extension="${filename##*.}"
filename="${filename%.*}"
if [ -n "$DRY_RUN" ]; then
list "$extension" "$file"
else
remove "$extension" "$file"
fi
fi
done
if [ -z "$DRY_RUN" ]; then
licensure --in-place --project
nix fmt
fi
fi
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