Add -uo pipefail for CI scripts

And switch to || true instead of | true

Necessary to stop on errors in pipes in get_translators_to_check

.ci/helper.sh

@@ -39,17 +39,17 @@ get_translators_to_check() {
 	# Push to master
 	if [ "${GITHUB_REF:-}" = "refs/heads/master" ]; then
 		local before_commit=$(jq -r '.before' $(echo $GITHUB_EVENT_PATH))
-		TRANSLATORS_TO_CHECK=$(git diff $before_commit --name-only | { grep -e "^[^/]*.js$" | true; })
+		TRANSLATORS_TO_CHECK=$(git diff $before_commit --name-only | { grep -e "^[^/]*.js$" || true; })
 	# Pull request
 	else
 		# Gets parent commits. Either one or two hashes
 		local parent_commits=($(git show --no-patch --format="%P" HEAD))
 		# Size of $parent_commits array
 		local num_parent_commits=${#parent_commits[@]}
 		if [ $num_parent_commits -gt 1 ]; then
-			TRANSLATORS_TO_CHECK=$(git diff HEAD^2 $(git rev-list "$(git rev-list --first-parent ^origin/master HEAD^2 | tail -n1)^^!") --name-only | { grep -e "^[^/]*.js$" | true; })
+			TRANSLATORS_TO_CHECK=$(git diff HEAD^2 $(git rev-list "$(git rev-list --first-parent ^master HEAD^2 | tail -n1)^^!") --name-only | { grep -e "^[^/]*.js$" || true; })
 		else
-			TRANSLATORS_TO_CHECK=$(git diff $(git rev-list "$(git rev-list --first-parent ^origin/master HEAD | tail -n1)^^!") --name-only | { grep -e "^[^/]*.js$" | true; })
+			TRANSLATORS_TO_CHECK=$(git diff $(git rev-list "$(git rev-list --first-parent ^master HEAD | tail -n1)^^!") --name-only | { grep -e "^[^/]*.js$" || true; })
 		fi
 	fi
 }

.ci/lint.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-set -e
+set -euo pipefail
 
 dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 

.ci/pull-request-check/check-pull-request.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-set -e
+set -euo pipefail
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 ROOT_DIR="$( dirname "$DIR" )"