Update shell lint config and fix the lint

.shellcheckrc

@@ -0,0 +1,5 @@
+enable=avoid-nullary-conditions
+enable=deprecate-which
+enable=quote-safe-variables
+enable=require-double-brackets
+shell=bash

scripts/check-tags.sh

@@ -5,11 +5,11 @@ set -euo pipefail
 FOLDERS=$(find . -name 'problem.md' | sed 's/problem.md//g' | sort)
 EXIT_STATUS=0
 
-for folder_tag in $FOLDERS; do
-    [ -s "${folder_tag}tags.txt" ] && continue
+for folder_tag in ${FOLDERS}; do
+    [[ -s "${folder_tag}tags.txt" ]] && continue
 
     EXIT_STATUS=1
     echo "Missing content for ${folder_tag}tags.txt"
 done
 
-exit $EXIT_STATUS
+exit "${EXIT_STATUS}"

scripts/docker/run-c.sh

@@ -9,15 +9,15 @@ echo
 FOLDERS=$(find . -name 'problem.md' | sed 's/problem.md//g' | sort)
 
 for folder in ${FOLDERS}; do
-    [ -f "${folder}WRONG" ] && continue
+    [[ -f "${folder}WRONG" ]] && continue
 
-    if [[ "$(find "$folder" -name '*.c' | wc -l)" -eq 1 ]]; then
-        echo "$folder"
-        cd "$folder" || exit 1
+    if [[ "$(find "${folder}" -name '*.c' | wc -l)" -eq 1 ]]; then
+        echo "${folder}"
+        cd "${folder}" || exit 1
 
         gcc -Werror -std=c99 -O2 -lm ./*.c
 
-        if [ -f in.txt ]; then
+        if [[ -f in.txt ]]; then
             ./a.out < in.txt > result-c.txt
         else
             ./a.out > result-c.txt

scripts/docker/run-clj.sh

@@ -6,14 +6,14 @@ echo
 echo "CLOJURE"
 echo
 
-for folder in $FOLDERS; do
-    [ -f "${folder}WRONG" ] && continue
+for folder in ${FOLDERS}; do
+    [[ -f "${folder}WRONG" ]] && continue
 
-    if [ "$(find "$folder" -name '*.clj' | wc -l)" -eq 1 ]; then
-        echo "$folder" 
-        cd "$folder" || exit 1
+    if [[ "$(find "${folder}" -name '*.clj' | wc -l)" -eq 1 ]]; then
+        echo "${folder}"
+        cd "${folder}" || exit 1
 
-        if [ -f in.txt ]; then
+        if [[ -f in.txt ]]; then
             clojure -M ./*.clj < in.txt > result-clj.txt
         else
             clojure -M ./*.clj > result-clj.txt

scripts/docker/run-cpp.sh

@@ -6,10 +6,10 @@ echo
 echo "C++"
 echo
 
-for folder in $FOLDERS; do
+for folder in ${FOLDERS}; do
     [[ -f "${folder}WRONG" ]] && continue
-    if [[ "$(find "$folder" -name '*.cpp' | wc -l)" -eq 1 ]]; then
-        echo "$folder"
+    if [[ "$(find "${folder}" -name '*.cpp' | wc -l)" -eq 1 ]]; then
+        echo "${folder}"
         cd "${folder}" || exit 1
 
         g++ -Werror -std=c++20 -O2 -lm ./*.cpp

scripts/docker/run-cs.sh

@@ -6,16 +6,16 @@ echo
 echo "C#"
 echo
 
-for folder in $FOLDERS; do
-    [ -f "${folder}WRONG" ] && continue
+for folder in ${FOLDERS}; do
+    [[ -f "${folder}WRONG" ]] && continue
 
-    if [ "$(find "$folder" -name '*.cs' | wc -l)" -eq 1 ]; then
-        echo "$folder" 
-        cd "$folder" || exit 1
+    if [[ "$(find "${folder}" -name '*.cs' | wc -l)" -eq 1 ]]; then
+        echo "${folder}"
+        cd "${folder}" || exit 1
 
         mcs -out:a.exe ./*.cs
 
-        if [ -f in.txt ]; then
+        if [[ -f in.txt ]]; then
             mono a.exe < in.txt > result-cs.txt
         else
             mono a.exe > result-cs.txt

scripts/docker/run-dart.sh

@@ -6,14 +6,14 @@ echo
 echo "DART"
 echo
 
-for folder in $FOLDERS; do
-    [ -f "${folder}WRONG" ] && continue
+for folder in ${FOLDERS}; do
+    [[ -f "${folder}WRONG" ]] && continue
 
-    if [ "$(find "$folder" -name '*.dart' | wc -l)" -eq 1 ]; then
-        echo "$folder" 
-        cd "$folder" || exit 1
+    if [[ "$(find "${folder}" -name '*.dart' | wc -l)" -eq 1 ]]; then
+        echo "${folder}"
+        cd "${folder}" || exit 1
 
-        if [ -f in.txt ]; then
+        if [[ -f in.txt ]]; then
             dart ./*.dart < in.txt > result-dart.txt
         else
             dart ./*.dart > result-dart.txt

scripts/docker/run-go.sh

@@ -6,14 +6,14 @@ echo
 echo "GO"
 echo
 
-for folder in $FOLDERS; do
-    [ -f "${folder}WRONG" ] && continue
+for folder in ${FOLDERS}; do
+    [[ -f "${folder}WRONG" ]] && continue
 
-    if [ "$(find "$folder" -name '*.go' | wc -l)" -eq 1 ]; then
-        echo "$folder" 
-        cd "$folder" || exit 1
+    if [[ "$(find "${folder}" -name '*.go' | wc -l)" -eq 1 ]]; then
+        echo "${folder}"
+        cd "${folder}" || exit 1
 
-        if [ -f in.txt ]; then
+        if [[ -f in.txt ]]; then
             go run ./*.go < in.txt > result-go.txt
         else
             go run ./*.go > result-go.txt

scripts/docker/run-hs.sh

@@ -6,16 +6,16 @@ echo
 echo "HASKELL"
 echo
 
-for folder in $FOLDERS; do
-    [ -f "${folder}WRONG" ] && continue
+for folder in ${FOLDERS}; do
+    [[ -f "${folder}WRONG" ]] && continue
 
-    if [ "$(find "$folder" -name '*.hs' | wc -l)" -eq 1 ]; then
-        echo "$folder" 
-        cd "$folder" || exit 1
+    if [[ "$(find "${folder}" -name '*.hs' | wc -l)" -eq 1 ]]; then
+        echo "${folder}"
+        cd "${folder}" || exit 1
 
         ghc -o hs.out ./*.hs > /dev/null
 
-        if [ -f in.txt ]; then
+        if [[ -f in.txt ]]; then
             ./hs.out < in.txt > result-hs.txt
         else
             ./hs.out > result-hs.txt

scripts/docker/run-java.sh

@@ -6,17 +6,17 @@ echo
 echo "JAVA"
 echo
 
-for folder in $FOLDERS; do
-    [ -f "${folder}WRONG" ] && continue
+for folder in ${FOLDERS}; do
+    [[ -f "${folder}WRONG" ]] && continue
 
-    if [ "$(find "$folder" -name '*.java' | wc -l)" -eq 1 ]; then
-        echo "$folder" 
-        cd "$folder" || exit 1
+    if [[ "$(find "${folder}" -name '*.java' | wc -l)" -eq 1 ]]; then
+        echo "${folder}"
+        cd "${folder}" || exit 1
 
         cp ./*.java Main.java
         javac Main.java
 
-        if [ -f in.txt ]; then
+        if [[ -f in.txt ]]; then
             java Main < in.txt > result-java.txt
         else
             java Main > result-java.txt

scripts/docker/run-js.sh

@@ -6,14 +6,14 @@ echo
 echo "JAVASCRIPT"
 echo
 
-for folder in $FOLDERS; do
-    [ -f "${folder}WRONG" ] && continue
+for folder in ${FOLDERS}; do
+    [[ -f "${folder}WRONG" ]] && continue
 
-    if [ "$(find "$folder" -name '*.js' | wc -l)" -eq 1 ]; then
-        echo "$folder" 
-        cd "$folder" || exit 1
+    if [[ "$(find "${folder}" -name '*.js' | wc -l)" -eq 1 ]]; then
+        echo "${folder}"
+        cd "${folder}" || exit 1
 
-        if [ -f in.txt ]; then
+        if [[ -f in.txt ]]; then
             node ./*.js < in.txt > result-js.txt
         else
             node ./*.js > result-js.txt

scripts/docker/run-kt.sh

@@ -6,17 +6,17 @@ echo
 echo "KOTLIN"
 echo
 
-for folder in $FOLDERS; do
-    [ -f "${folder}WRONG" ] && continue
+for folder in ${FOLDERS}; do
+    [[ -f "${folder}WRONG" ]] && continue
 
-    if [ "$(find "$folder" -name '*.kt' | wc -l)" -eq 1 ]; then
-        echo "$folder" 
-        cd "$folder" || exit 1
+    if [[ "$(find "${folder}" -name '*.kt' | wc -l)" -eq 1 ]]; then
+        echo "${folder}"
+        cd "${folder}" || exit 1
 
         cp ./*.kt main.kt
         /kotlinc/bin/kotlinc main.kt
 
-        if [ -f in.txt ]; then
+        if [[ -f in.txt ]]; then
             /kotlinc/bin/kotlin MainKt < in.txt > result-kt.txt
         else
             /kotlinc/bin/kotlin MainKt > result-kt.txt

scripts/docker/run-lua.sh

@@ -6,14 +6,14 @@ echo
 echo "LUA"
 echo
 
-for folder in $FOLDERS; do
-    [ -f "${folder}WRONG" ] && continue
+for folder in ${FOLDERS}; do
+    [[ -f "${folder}WRONG" ]] && continue
 
-    if [ "$(find "$folder" -name '*.lua' | wc -l)" -eq 1 ]; then
-        echo "$folder" 
-        cd "$folder" || exit 1
+    if [[ "$(find "${folder}" -name '*.lua' | wc -l)" -eq 1 ]]; then
+        echo "${folder}"
+        cd "${folder}" || exit 1
 
-        if [ -f in.txt ]; then
+        if [[ -f in.txt ]]; then
             lua ./*.lua < in.txt > result-lua.txt
         else
             lua ./*.lua > result-lua.txt

scripts/docker/run-ml.sh

@@ -6,17 +6,17 @@ echo
 echo "OCAML"
 echo
 
-for folder in $FOLDERS; do
-    [ -f "${folder}WRONG" ] && continue
+for folder in ${FOLDERS}; do
+    [[ -f "${folder}WRONG" ]] && continue
 
-    if [ "$(find "$folder" -name '*.ml' | wc -l)" -eq 1 ]; then
-        echo "$folder" 
-        cd "$folder" || exit 1
+    if [[ "$(find "${folder}" -name '*.ml' | wc -l)" -eq 1 ]]; then
+        echo "${folder}"
+        cd "${folder}" || exit 1
 
         cp ./*.ml main.ml
         ocamlc -o ml.out main.ml
 
-        if [ -f in.txt ]; then
+        if [[ -f in.txt ]]; then
             ./ml.out < in.txt > result-ml.txt
         else
             ./ml.out > result-ml.txt

scripts/docker/run-pas.sh

@@ -6,16 +6,16 @@ echo
 echo "PASCAL"
 echo
 
-for folder in $FOLDERS; do
-    [ -f "${folder}WRONG" ] && continue
+for folder in ${FOLDERS}; do
+    [[ -f "${folder}WRONG" ]] && continue
 
-    if [ "$(find "$folder" -name '*.pas' | wc -l)" -eq 1 ]; then
-        echo "$folder" 
-        cd "$folder" || exit 1
+    if [[ "$(find "${folder}" -name '*.pas' | wc -l)" -eq 1 ]]; then
+        echo "${folder}"
+        cd "${folder}" || exit 1
 
         fpc -opas.out ./*.pas
 
-        if [ -f in.txt ]; then
+        if [[ -f in.txt ]]; then
             ./pas.out < in.txt > result-pas.txt
         else
             ./pas.out > result-pas.txt

scripts/docker/run-php.sh

@@ -6,14 +6,14 @@ echo
 echo "PHP"
 echo
 
-for folder in $FOLDERS; do
-    [ -f "${folder}WRONG" ] && continue
+for folder in ${FOLDERS}; do
+    [[ -f "${folder}WRONG" ]] && continue
 
-    if [ "$(find "$folder" -name '*.php' | wc -l)" -eq 1 ]; then
-        echo "$folder" 
-        cd "$folder" || exit 1
+    if [[ "$(find "${folder}" -name '*.php' | wc -l)" -eq 1 ]]; then
+        echo "${folder}"
+        cd "${folder}" || exit 1
 
-        if [ -f in.txt ]; then
+        if [[ -f in.txt ]]; then
             php ./*.php < in.txt > result-php.txt
         else
             php ./*.php > result-php.txt