Refined tool return error codes.

Now they all return with exit 0 and error messages instead.
This prevents early query abortion on fatal errors.

1 files changed, 42 insertions, 11 deletions

diff --git a/tools/fs_write.sh b/tools/fs_write.sh
index e418835..746c24b 100755
--- a/tools/fs_write.sh
+++ b/tools/fs_write.sh
@@ -1,25 +1,56 @@
 #!/usr/bin/env bash
-set -e
+set -uo pipefail
 
 # @describe Write the full file contents to a file at the specified path.
-
 # @option --path! The path of the file to write to
 # @option --contents! The full contents to write to the file
-
 # @env LLM_OUTPUT=/dev/stdout The output path
 
 ROOT_DIR="${LLM_ROOT_DIR:-$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)}"
+OUT="${LLM_OUTPUT:-/dev/stdout}"
+
+err() {
+  echo "ERROR: $*" >> "$OUT"
+  exit 0
+}
 
 main() {
-    if [[ -f "$argc_path" ]]; then
-        printf "%s" "$argc_contents" | git diff --no-index "$argc_path" - || true
-        "$ROOT_DIR/utils/guard_operation.sh" "Apply changes?"
-    else
-        "$ROOT_DIR/utils/guard_path.sh" "$argc_path" "Write '$argc_path'?"
-        mkdir -p "$(dirname "$argc_path")"
+  path="${argc_path:-}"
+  contents="${argc_contents:-}"
+
+  [[ -z "$path" ]] && err "missing --path"
+  # contents darf leer sein – das ist erlaubt (File leeren)
+  dir="$(dirname "$path")"
+
+  if [[ -e "$path" && ! -f "$path" ]]; then
+    err "target exists but is not a regular file: $path"
+  fi
+
+  if [[ -f "$path" ]]; then
+    # Diff in Output schreiben (damit LLM es sieht)
+    printf "%s" "$contents" | git diff --no-index "$path" - >> "$OUT" 2>/dev/null || true
+    if ! "$ROOT_DIR/utils/guard_operation.sh" "Apply changes?" >>"$OUT" 2>&1; then
+      err "operation cancelled by user"
+    fi
+  else
+    if ! "$ROOT_DIR/utils/guard_path.sh" "$path" "Write '$path'?" >>"$OUT" 2>&1; then
+      err "operation cancelled by user"
+    fi
+    if ! mkdir -p "$dir" 2>/tmp/fs_write_mkdir.err; then
+      msg="$(cat /tmp/fs_write_mkdir.err 2>/dev/null || true)"
+      err "failed to create parent dir $dir: ${msg:-unknown error}"
     fi
-    printf "%s" "$argc_contents" > "$argc_path"
-    echo "The contents written to: $argc_path" >> "$LLM_OUTPUT"
+  fi
+
+  if ! printf "%s" "$contents" > "$path" 2>/tmp/fs_write.err; then
+    msg="$(cat /tmp/fs_write.err 2>/dev/null || true)"
+    err "failed to write file $path: ${msg:-unknown error}"
+  fi
+
+  echo "The contents written to: $path" >> "$OUT"
+  exit 0
 }
 
 eval "$(argc --argc-eval "$0" "$@")"
+main
+