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Lint and fix missing trailing newlines (#16445) 

Apply the Clojure Style Guide recommendation to end files with proper lines
(having a trailing newline character). See
https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206
This commit is contained in:
Icaro Motta 2023-07-04 19:40:13 +00:00 committed by GitHub
parent 8978e92042
commit 19ca8e28a5
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50 changed files with 94 additions and 60 deletions
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3
Makefile
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@ -307,6 +307,7 @@ lint: ##@test Run code style checks
clj-kondo --config .clj-kondo/config.edn --cache false --lint src && \
ALL_CLOJURE_FILES=$(call find_all_clojure_files) && \
zprint '{:search-config? true}' -sfc $$ALL_CLOJURE_FILES && \
sh scripts/lint-trailing-newline.sh && \
yarn prettier
# NOTE: We run the linter twice because of https://github.com/kkinnear/zprint/issues/271
@ -315,9 +316,9 @@ lint-fix: ##@test Run code style checks and fix issues
ALL_CLOJURE_FILES=$(call find_all_clojure_files) && \
zprint '{:search-config? true}' -sw $$ALL_CLOJURE_FILES && \
zprint '{:search-config? true}' -sw $$ALL_CLOJURE_FILES && \
sh scripts/lint-trailing-newline.sh --fix && \
yarn prettier
shadow-server: export TARGET := clojure
shadow-server:##@ Start shadow-cljs in server mode for watching
yarn shadow-cljs server

33
scripts/lint-trailing-newline.sh Executable file
View File

@ -0,0 +1,33 @@
#!/usr/bin/env bash
set -eof pipefail
FILES=$(comm -23 <(sort <(git ls-files --cached --others --exclude-standard)) <(sort <(git ls-files --deleted)) | grep --ignore-case -E '\.(java|cpp|nix|json|sh|md|js|clj|cljs|cljc|edn)$')
N_FILES=$(echo "$FILES" | wc -l)
LINT_SHOULD_FIX=0
if [[ -n $1 && $1 != '--fix' ]]; then
echo "Unknown option '$1'" >&2
exit 1
elif [[ $1 == '--fix' ]]; then
LINT_SHOULD_FIX=1
fi
echo "Checking ${N_FILES} files for missing trailing newlines."
# Do not process the whole file and only check the last character. Ignore empty
# files. Taken from https://stackoverflow.com/a/10082466.
for file in $FILES; do
if [ -s "$file" ] && [ "$(tail -c1 "$file"; echo x)" != $'\nx' ]; then
if [[ $LINT_SHOULD_FIX -eq 1 ]]; then
echo "" >>"$file"
else
LINT_ERROR=1
echo "No trailing newline: $file" >&2
fi
fi
done
if [[ $LINT_ERROR -eq 1 ]]; then
exit 1
fi