fix: build issue with bashunit on NixOS

Author: Chemaclass

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## Unreleased
+
+- Fix build issue with bashunit on NixOS
+
 ## [0.22.2](https://github.com/TypedDevs/bashunit/compare/0.22.1...0.22.2) - 2025-07-26
 
 - Fix broken core snapshot tests

Makefile

@@ -61,11 +61,11 @@ test/list:
 	@echo $(TEST_SCRIPTS) | tr ' ' '\n'
 
 test: $(TEST_SCRIPTS)
-	@./bashunit $(TEST_SCRIPTS)
+	@bash ./bashunit $(TEST_SCRIPTS)
 
 test/watch: $(TEST_SCRIPTS)
-	@./bashunit $(TEST_SCRIPTS)
-	@fswatch -m poll_monitor -or $(SRC_SCRIPTS_DIR) $(TEST_SCRIPTS_DIR) .env Makefile | xargs -n1 ./bashunit $(TEST_SCRIPTS)
+	@bash ./bashunit $(TEST_SCRIPTS)
+	@fswatch -m poll_monitor -or $(SRC_SCRIPTS_DIR) $(TEST_SCRIPTS_DIR) .env Makefile | xargs -n1 bash ./bashunit $(TEST_SCRIPTS)
 
 docker/alpine:
 	@docker run --rm -it -v "$(shell pwd)":/project -w /project alpine:latest \

src/env.sh

@@ -143,7 +143,7 @@ function env::print_verbose() {
 EXIT_CODE_STOP_ON_FAILURE=4
 # Use a unique directory per run to avoid conflicts when bashunit is invoked
 # recursively or multiple instances are executed in parallel.
-TEMP_DIR_PARALLEL_TEST_SUITE="/tmp/bashunit/parallel/${_OS:-Unknown}/$(random_str 8)"
+TEMP_DIR_PARALLEL_TEST_SUITE="${TMPDIR:-/tmp}/bashunit/parallel/${_OS:-Unknown}/$(random_str 8)"
 TEMP_FILE_PARALLEL_STOP_ON_FAILURE="$TEMP_DIR_PARALLEL_TEST_SUITE/.stop-on-failure"
 TERMINAL_WIDTH="$(env::find_terminal_width)"
 FAILURES_OUTPUT_PATH=$(mktemp)

src/globals.sh

@@ -39,30 +39,32 @@ function random_str() {
 
 function temp_file() {
   local prefix=${1:-bashunit}
-  mkdir -p /tmp/bashunit/tmp && chmod -R 777 /tmp/bashunit/tmp
+  local base_dir="${TMPDIR:-/tmp}/bashunit/tmp"
+  mkdir -p "$base_dir" && chmod -R 777 "$base_dir"
   local test_prefix=""
   if [[ -n "${BASHUNIT_CURRENT_TEST_ID:-}" ]]; then
     test_prefix="${BASHUNIT_CURRENT_TEST_ID}_"
   fi
-  mktemp /tmp/bashunit/tmp/"${test_prefix}${prefix}".XXXXXXX
+  mktemp "$base_dir/${test_prefix}${prefix}.XXXXXXX"
 }
 
 function temp_dir() {
   local prefix=${1:-bashunit}
-  mkdir -p /tmp/bashunit/tmp && chmod -R 777 /tmp/bashunit/tmp
+  local base_dir="${TMPDIR:-/tmp}/bashunit/tmp"
+  mkdir -p "$base_dir" && chmod -R 777 "$base_dir"
   local test_prefix=""
   if [[ -n "${BASHUNIT_CURRENT_TEST_ID:-}" ]]; then
     test_prefix="${BASHUNIT_CURRENT_TEST_ID}_"
   fi
-  mktemp -d /tmp/bashunit/tmp/"${test_prefix}${prefix}".XXXXXXX
+  mktemp -d "$base_dir/${test_prefix}${prefix}.XXXXXXX"
 }
 
 function cleanup_temp_files() {
   internal_log "cleanup_temp_files"
   if [[ -n "${BASHUNIT_CURRENT_TEST_ID:-}" ]]; then
-    rm -rf /tmp/bashunit/tmp/"${BASHUNIT_CURRENT_TEST_ID}"_*
+    rm -rf "${TMPDIR:-/tmp}/bashunit/tmp/${BASHUNIT_CURRENT_TEST_ID}"_*
   else
-    rm -rf /tmp/bashunit/tmp/*
+    rm -rf "${TMPDIR:-/tmp}/bashunit/tmp"/*
   fi
 }