refactor and fix determining environment file name

added getting environment file, library path and build source from subcommands env_file,lib,build_src

build

@@ -3,7 +3,7 @@
 udbuild () {
 
 local targets=(dev arm64 amd64 publish multi default)
-local log_dir; local no_prompt; local packages
+local log_dir; local no_prompt; local packages; local befile
 declare -A dimage; declare -A dinstall; declare -A dupdate
 
 declare OPTION; declare OPTARG; declare OPTIND
@@ -18,16 +18,32 @@ BUILD_EFILE=""
 case "$1" in
   try)
   shift 1;  try_container "$@"; return $?  ;;
-  load_env_file)
+  
-  echo -e "@@@@@@ loading build environment file for external use @@@@@@"
+  env_file) 
-  BUILD_EFILE=$(echo -- "$@" | grep -oP -- '(?<=-e )[^ ]*')
+    shift 1
-  if source_env_file "$BUILD_EFILE"; then
+    befile=$(echo -- "$@" | grep -oP -- '(?<=-e )[^ ]*')
-  echo -e "@@@@@@@@@@@@@@@@@ returning to calling script @@@@@@@@@@@@@@@"
+    env_file ${befile:-$BUILD_EFILE} ;  
+    return $?  
+  ;;
+
+  lib) 
+   shift 1
+   echo $BDIR/lib/build.lib
+   return 0
+   ;;
+
+  build_src) 
+    shift 1
+    befile=$(echo -- "$@" | grep -oP -- '(?<=-e )[^ ]*')
+    befile=${befile:-$BUILD_EFILE} 
+    if befile=$(env_file $befile); then  
+      [[ $befile ]] && source_env_file $befile
+      get_build_src
+      return $?
      else
-  return 1
+      return 3
     fi
   ;;
-  build_src) shift 1; get_build_src "$@";  return $?  ;;
   help)
   ;&
   --help)
@@ -142,9 +158,10 @@ done
 
 shift $((OPTIND - 1))
 
+
 [[ ! $BUILD_EFILE ]] && source_env_file
 
-if ! get_build_src; then 
+if ! get_build_src > /dev/null ; then 
  if [[ $no_prompt ]] ; then
     echo aborting the build...
     echo -e "\e[1;31mNOTE: use '_core_' to explicitly build with only the UCI core repo\e[1;37m"
@@ -229,6 +246,8 @@ if [[ ! $BUILD_SRC = "_core_" ]]; then
   /bin/cp -a ${BUILD_SRC:-src}/. $BDIR/.src > /dev/null 2>&1
   /bin/cp -a $BDIR/.src/rootfs/opt/env/. $BDIR/core/rootfs/opt/env > /dev/null 2>&1
   fi
+  ls -la $BDIR/.src/rootfs
+  ls -la $BDIR/.src/rootfs/root
 fi  
 
 echo run environment directory copied to core at $BDIR/core/$_env_dir
@@ -263,6 +282,8 @@ fi
 EOF
 fi
 
+[[ -f $BDIR/.src/custom-core.sh ]] && /bin/cp $BDIR/.src/custom-core.sh $BDIR/core/
+
 pushd "$BDIR" > /dev/null || return 3
 
 export BUILDING=true
@@ -276,7 +297,7 @@ popd > /dev/null || return 4
 
 # cleanup
 echo cleaning up..
-rm -rf $BDIR/.src $BDIR/core/build.env $BDIR/core/*-permits > /dev/null 2<&1
+rm -rf $BDIR/.src $BDIR/core/build.env $BDIR/core/custom-core.sh $BDIR/core/*-permits > /dev/null 2<&1
 echo done cleaning
 # try in container
 if [[ ($TRY_CMD || $TARGET == "dev") ]]; then

lib/build.lib

@@ -53,10 +53,14 @@ clean_env_file () {
 }
 
 env_file () {
-   env=${1:-.env}
+   local efile
-   [[ -f "${env}" ]] && { echo $env; return 0; } # || echo not $env
+   efile=$(echo -- "$@" | grep -oP -- '(?<=-e )[^ ]*')
-   [[ -f "${env}.env" ]] && { echo "${env}.env"; return 0; } # || echo not ${env}.env
+   if [[ ! $efile ]]; then  
-   [[ -f "${env}/.env" ]] && { echo "${env}/.env"; return 0; } # || echo not ${env}/.env
+    [[ ! "$1" == *-* ]] && efile=${1:-.env}
+   fi 
+   [[ -f "$(realpath "${efile}.env" 2> /dev/null)" ]] && { echo "${efile}.env"; return 0; } # || echo not ${efile}.env
+   [[ -f "$(realpath "${efile}/.env" 2> /dev/null)" ]] && { echo "${efile}/.env"; return 0; } # || echo not ${efile}/.env
+   [[ "${efile##*.}" == "env" ]] && [[ -f "$(realpath "${efile}" 2> /dev/null)" ]] && { echo $efile; return 0; } # || echo not $env
    return 1
 }  
 
@@ -90,7 +94,7 @@ read_env_file() {
 
 source_env_file () {
     local default;local efile
-    if efile=$(env_file ${1:-$BUILD_EFILE}); then 
+    if efile=$(env_file "${@:-$BUILD_EFILE}"); then 
       [[ $efile == ".env" ]] && default=true
       [[ ! $(isAbsPath $efile) ]] && efile=$(realpath $efile)
       quiet echo -e "\e[1;37m********************\e[0;37m"
@@ -236,24 +240,25 @@ unset BUILD_SRC
 
 if check_dir $src; then 
     BUILD_SRC=$(realpath $src)
+    echo $BUILD_SRC
     return 0
 fi
 
-echo build source path \'$src\' not initially found, echo looking 
+quiet echo build source path \'$src\' not initially found, echo looking 
-echo in \$PWD,\$PWD/src/,../\$PWD/src for valid build source 
+quiet echo in \$PWD,\$PWD/src/,../\$PWD/src for valid build source 
-echo to avoid this search use BUILD_SRC=  in an environment file 
+quiet echo to avoid this search use BUILD_SRC=  in an environment file 
 spaths="$PWD $PWD/src $(dirname $PWD)/$src $(dirname $PWD)"
 for spath in $spaths; do
-    echo checking for source in: $spath
+    quiet echo checking for source in: $spath
     if check_dir $spath; then
-      echo found valid source directory!
+      quiet echo found valid source directory!
-      echo using $spath
       BUILD_SRC=$spath
+      echo $BUILD_SRC
       return 0
     fi
 done
 
- echo -e "\e[1;31mERROR: unable to find a build source directory as $src \e[1;37m" 
+quiet echo -e "\e[1;31mERROR: unable to find a build source directory as $src \e[1;37m" 
  return 1
 }