From 30658cc495a21cdb26dcbf80c4473500e8ab5c3f Mon Sep 17 00:00:00 2001
From: pvincent <pvincent@artcode.re>
Date: Thu, 13 Aug 2026 21:43:49 +0400
Subject: [PATCH] /dev/stdin...

---
 bin/miaou-bash            | 33 ++++++++++++++++++++++++---------
 test/miaou-bash.test.bash |  2 +-
 test/stub/scenario.bash   |  3 ++-
 3 files changed, 27 insertions(+), 11 deletions(-)

diff --git a/bin/miaou-bash b/bin/miaou-bash
index 583f3bc..6291471 100755
--- a/bin/miaou-bash
+++ b/bin/miaou-bash
@@ -623,9 +623,16 @@ function usage {
 }
 
 function parse_options {
-  [[ $# == 0 ]] && >&2 echo 'ERROR: script expected!' && builtin exit 2
-
-  if [[ $# == 1 ]]; then
+  HEREDOC=false
+  if [[ $# == 0 ]]; then
+    if [[ -t 0 ]]; then
+      >&2 echo 'ERROR: script expected!'
+      builtin exit 2
+    else
+      HEREDOC=true
+      return
+    fi
+  elif [[ $# == 1 ]]; then
     case "$1" in
     --help) usage && builtin exit ;;
     --version) cat "${MIAOU_BASH_DIR:-/opt/miaou-bash}/.semver_git_tag" && builtin exit ;;
@@ -646,10 +653,12 @@ function parse_options {
   fi
 
   [[ $1 =~ ^- ]] && >&2 echo "ERROR: too many args $#, either single option or SCRIPT + args accepted!" && builtin exit 2
+
   SCRIPT="$1"
-  [[ ! -v SCRIPT ]] && >&2 echo 'ERROR: script expected!' && builtin exit 2
-  [[ ! -f "$SCRIPT" ]] && >&2 echo "ERROR: script '$SCRIPT' not found!" && builtin exit 2
-  true
+  if [[ ! -f "$SCRIPT" ]]; then
+    >&2 echo "ERROR: script '$SCRIPT' not found!"
+    builtin exit 3
+  fi
 }
 
 function read {
@@ -670,7 +679,8 @@ trap 'on_exit $?' EXIT
 trap 'on_pipe' PIPE
 trap 'on_return' RETURN
 
-BASH_ARGV0="$SCRIPT" && shift
+[[ -v SCRIPT ]] && BASH_ARGV0="${SCRIPT}" && shift
+
 if is_true "$CHILD_PROCESS"; then
   # any nested children
   exec 4>/dev/tty 2>"$MIAOU_BASH_ERROR"
@@ -688,5 +698,10 @@ else
   miaou_debug "<main file=$BASH_ARGV0 pid=${BASHPID}/>"
 fi
 
-# shellcheck source=/dev/null
-source "$SCRIPT"
+if [[ "$HEREDOC" == true ]]; then
+  # shellcheck source=/dev/stdin
+  source /dev/stdin
+else
+  # shellcheck source=/dev/null
+  source "$SCRIPT"
+fi
diff --git a/test/miaou-bash.test.bash b/test/miaou-bash.test.bash
index 5142f3f..4271b0e 100755
--- a/test/miaou-bash.test.bash
+++ b/test/miaou-bash.test.bash
@@ -139,7 +139,7 @@ time {
 
   fail_stderr_count unbound_variable 1
   fail_stderr_count child_error 4
-  fail_miaou_count command_error_multiline 6
+  fail_miaou_count command_error_multiline 7
 }
 failed=${#failures[@]}
 success=$((test_count - failed))
diff --git a/test/stub/scenario.bash b/test/stub/scenario.bash
index d1d3637..85fc09d 100755
--- a/test/stub/scenario.bash
+++ b/test/stub/scenario.bash
@@ -13,8 +13,9 @@ function do_subshell_false {
 }
 
 function do_command_error_multiline {
-  miaou-bash <<EOF
+  source /dev/stdin <<EOF
 echo ok
+echo yop
 false
 echo SHOULD NOT APPEAR
 EOF