gnome-shell/.gitlab-ci/run-eslint.sh

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#!/usr/bin/bash
OUTPUT_REGULAR=reports/lint-regular-report.txt
OUTPUT_LEGACY=reports/lint-legacy-report.txt
OUTPUT_FINAL=reports/lint-common-report.txt
OUTPUT_MR=reports/lint-mr-report.txt
LINE_CHANGES=changed-lines.txt
is_empty() {
(! grep -q . $1)
}
run_eslint() {
ARGS_LEGACY='--config lint/eslintrc-legacy.json'
local extra_args=ARGS_$1
local output=OUTPUT_$1
eslint -f unix ${!extra_args} -o ${!output} js
}
list_commit_range_additions() {
# Turn raw context-less git-diff into a list of
# filename:lineno pairs of new (+) lines
git diff -U0 "$@" -- js |
awk '
BEGIN { file=""; }
/^+++ b/ { file=substr($0,7); }
/^@@ / {
len = split($3,a,",")
start=a[1]
count=(len > 1) ? a[2] : 1
for (line=start; line<start+count; line++)
printf "%s/%s:%d:\n",ENVIRON["PWD"],file,line;
}'
}
copy_matched_lines() {
local source=$1
local matches=$2
local target=$3
echo -n > $target
for l in $(<$matches); do
grep $l $source >> $target
done
}
create_common() {
# comm requires sorted input;
# we also strip the error message to make the following a "common" error:
# regular:
# file.js:42:23 Indentation of 55, expected 42
# legacy:
# file.js:42:23 Indentation of 55, extected 24
prepare() {
sed 's: .*::' $1 | sort
}
comm -12 <(prepare $OUTPUT_REGULAR) <(prepare $OUTPUT_LEGACY) >$OUTPUT_FINAL.tmp
# Now add back the stripped error messages
copy_matched_lines $OUTPUT_REGULAR $OUTPUT_FINAL.tmp $OUTPUT_FINAL
rm $OUTPUT_FINAL.tmp
}
if [ "$CI_MERGE_REQUEST_TARGET_BRANCH_NAME" ]; then
git fetch $CI_MERGE_REQUEST_PROJECT_URL.git $CI_MERGE_REQUEST_TARGET_BRANCH_NAME
branch_point=$(git merge-base HEAD FETCH_HEAD)
commit_range=$branch_point...$CI_COMMIT_SHA
list_commit_range_additions $commit_range > $LINE_CHANGES
# Don't bother with running lint when no JS changed
if is_empty $LINE_CHANGES; then
exit 0
fi
fi
echo Generating lint report using regular configuration
run_eslint REGULAR
echo Generating lint report using legacy configuration
run_eslint LEGACY
echo Done.
create_common
# Just show the report and succeed when not testing a MR
if [ -z "$CI_MERGE_REQUEST_TARGET_BRANCH_NAME" ]; then
cat $OUTPUT_FINAL
exit 0
fi
copy_matched_lines $OUTPUT_FINAL $LINE_CHANGES $OUTPUT_MR
cat $OUTPUT_MR
is_empty $OUTPUT_MR