fix: fix message by write to a temp message file

fixes #1

leaf

@@ -28,6 +28,9 @@ done
 declare -A BUILD_OPTIONS
 BUILD_OPTIONS=([strip]="0" [libtool]="0" [zipman]="0")
 
+# global message file list
+declare -a LEAF_MESSAGE_FILES=()
+
 main() {
   leaf_check_directories
   if [ $# -le 1 ]; then
@@ -55,6 +58,7 @@ main() {
             leaf_find_pkgbuild "${_item}"
           fi
           leaf_reset_state
+          leaf_message_init
           if [[ x"$1" == x"remove" ]]; then
             source "${TRACE_DIR}/${PKG_PREFIX}/${PKG_NAME}/PKGBUILD" || leaf_record_message "cannot find PKGBUILD, ingore."
           else
@@ -89,9 +93,7 @@ main() {
         leaf_print_usage
         ;;
     esac
-    if [ -n "${MESSAGE}" ]; then
-      echo -e "${MESSAGE}"
-    fi
+    leaf_print_message
   fi
 }
 
@@ -168,9 +170,7 @@ leaf_compress_man_pages() {
 }
 
 leaf_error() {
-  if [ -n "${MESSAGE}" ]; then
-    echo -e "${MESSAGE}"
-  fi
+  leaf_print_message
   echo -e "${RED_COLOR}* $1${CLEAR_COLOR}" && exit 1
 }
 
@@ -291,7 +291,7 @@ Usage: leaf [option] [packages]
 Option:     prepare        prepare packages but do not build
             build          build packages but do not install
             install        install packages
-            forece-install install packages even if test faild
+            forece-install install packages even if test failed
             dirct-install  install packages directly from previous build
             remove         remove packages
             clean          clean all source folders
@@ -304,14 +304,53 @@ Option:     prepare        prepare packages but do not build
 EOF
 }
 
+leaf_message_init() {
+  # one log per package invocation
+  local d="${TEMP_DIR}/leaf-messages/${PKG_PREFIX}/${PKG_NAME}"
+  install -dm755 -- "$d"
+  LEAF_MESSAGE_FILE="${d}/messages.$$.$(date +%Y%m%d%H%M%S).log"
+  : > "${LEAF_MESSAGE_FILE}"
+  export LEAF_MESSAGE_FILE
+
+  LEAF_MESSAGE_FILES+=("${LEAF_MESSAGE_FILE}")
+}
+
 leaf_record_message() {
-  MESSAGE+="\n${PURPLE_COLOR}* Message from ${PKG_PREFIX}/${PKG_NAME}${CLEAR_COLOR}\n"
+  local out
   local _item
   for _item in "${@:1}"; do
-    MESSAGE+="${GREEN_COLOR}* ${_item}${CLEAR_COLOR}\n"
+    out+="${GREEN_COLOR}* ${_item}${CLEAR_COLOR}\n"
   done
+
+  if [ -n "${LEAF_MESSAGE_FILE}" ]; then
+    # printf %b will explain \n 和 \e
+    printf '%b' "${out}" >> "${LEAF_MESSAGE_FILE}"
+  fi
 }
 
+leaf_print_message() {
+  local f prefix name
+
+  for f in "${LEAF_MESSAGE_FILES[@]}"; do
+    [ -n "$f" ] || continue
+    [ -s "$f" ] || continue
+
+    # ${TEMP_DIR}/leaf-messages/<prefix>/<name>/messages....
+    prefix="${f#${TEMP_DIR}/leaf-messages/}"
+    prefix="${prefix%%/*}"
+    name="${f#${TEMP_DIR}/leaf-messages/${prefix}/}"
+    name="${name%%/*}"
+
+    echo -e "\n${PURPLE_COLOR}* Message from ${prefix}/${name}${CLEAR_COLOR}\n"
+    cat -- "$f"
+    rm -f -- "$f"
+  done
+
+  LEAF_MESSAGE_FILES=()
+  unset LEAF_MESSAGE_FILE
+}
+
+
 leaf_remove_libtool_files() {
   find "${pkgdir}" -name "*.la" -delete
 }
@@ -492,12 +531,12 @@ leaf_prepare_package() {
 
   popd >/dev/null || true
   echo "Sources ready."
-  leaf_phase_must "Preparing" src_prepare "Prepare faild."
+  leaf_phase_must "Preparing" src_prepare "Prepare failed."
 }
 
 leaf_build_package() {
   leaf_prepare_package
-  leaf_phase_must "Building" src_build "Build faild."
+  leaf_phase_must "Building" src_build "Build failed."
 
   leaf_phase_try "Checking" src_check
   if [ "${LEAF_PHASE_RC}" -ne 0 ]; then