Update Ubuntu CI scripts

.github/Ubuntu/vl/cmd/vmake

@@ -8,7 +8,7 @@ function Help {
 
 function Make {
     if [ -a vmake ]; then
-        vt4 --preprocess ./vmake | vt4 --evaluate | ${SHELL} > makefile
+        vt4 --preprocess ./vmake | vt4 --evaluate | "${BASH}" > makefile
     else
         echo "Cannot find ./vmake ."
         exit 1

.github/Ubuntu/vl/cmd/vt4

@@ -15,13 +15,13 @@ function Error {
 }
 
 function Preprocess {
-    PATTERN='^\s*<#@\s*include\s*"([^"]*)"\s*#>\s*$'
+    PATTERN='^[[:space:]]*<#@[[:space:]]*include[[:space:]]*"([^"]*)"[[:space:]]*#>[[:space:]]*$'
     cat $1 | while read -r LINE; do
-        INCLUDE_STAT=`echo "${LINE}" | grep -E ${PATTERN}`
+        INCLUDE_STAT=`echo "${LINE}" | grep -E "${PATTERN}"`
         if [[ "$INCLUDE_STAT" == "" ]]; then
             echo "${LINE}"
         else
-            INCLUDE_FILE=`echo "${LINE}" | sed -r -e 's%'${PATTERN}'%\1%g'`
+            INCLUDE_FILE=`echo "${LINE}" | sed -E -e 's%'${PATTERN}'%\1%g'`
             INCLUDE_DIR=`dirname ${INCLUDE_FILE}`
             INCLUDE_NAME=`basename ${INCLUDE_FILE}`
 
@@ -47,8 +47,8 @@ function Evaluate {
     cat $1 | while read -r LINE; do
         COLUMN_NUMBER=0
 
-        PARTS=`echo $LINE | sed -r -e 's%(<#=\s*|<#\s*|\s*#>)%\n\1\n%g'`
-        PARTS=`echo "$PARTS" | sed -r -e 's%^<#=\s*$%<#=%g;s%^<#\s*$%<#%g;s%^\s*#>$%#>%g'`
+        PARTS=`echo $LINE | sed -E -e 's%(<#=[[:space:]]*|<#[[:space:]]*|[[:space:]]*#>)%\n\1\n%g'`
+        PARTS=`echo "$PARTS" | sed -E -e 's%^<#=[[:space:]]*$%<#=%g;s%^<#[[:space:]]*$%<#%g;s%^[[:space:]]*#>$%#>%g'`
         PURE_COMMAND=1
 
         while read -r PART; do

.github/Ubuntu/vl/cmd/vutil_CppDependencies

@@ -1,3 +1,3 @@
 #!/bin/bash
 
-echo `clang++ --std=c++20 $1 -MM $2` | sed -r -e 's%[\]\s*%%g'
+echo `clang++ --std=c++20 $1 -MM $2` | sed -E -e 's%\\[[:space:]]*%%g'

.github/Ubuntu/vl/cmd/vutil_CppFromVcxproj

@@ -7,13 +7,18 @@ fi
 CONTENT=`cat $1`
 
 # extract all cpp files
-PATTERN='<ClCompile\s+Include="(\$\(MSBuildThisFileDirectory\))?([^"]+.cpp)"\s*/?\s*>'
-COMPILES=`echo "${CONTENT}" | grep -E ${PATTERN}`
-CPPS=`echo "${COMPILES}" | sed -r -e 's%\s*'${PATTERN}'\s*%\2%g'`
+PATTERN='<ClCompile[[:space:]]+Include="(\$\(MSBuildThisFileDirectory\))?([^"]+.cpp)"[[:space:]]*/?[[:space:]]*>'
+COMPILES=`echo "${CONTENT}" | grep -E "${PATTERN}"`
+CPPS=`echo "${COMPILES}" | sed -E -e 's%[[:space:]]*'${PATTERN}'[[:space:]]*%\2%g'`
 
 # refine file names
 CPPS=`echo "${CPPS}" | sed -e 's%[\]%/%g'`
 CPPS=`echo "${CPPS}" | sed -e 's%^%'${PWD}/$(dirname $1)/'%g'`
+if [ "$(uname -s)" == "Darwin" ]; then
+    REALPATH=grealpath
+else
+    REALPATH=realpath
+fi
 echo "${CPPS}" | while read -r CPP; do
-    realpath --relative-to="${PWD}" ${CPP}
+    "${REALPATH}" --relative-to="${PWD}" "${CPP}"
 done

.github/Ubuntu/vl/vmake-cpp

@@ -9,16 +9,32 @@ for CPP_VCXPROJ_ITEM in "${CPP_VCXPROJS[@]}"; do
 done
 
 # Remove duplicated items (preserve the first occurrence, like LINQ Distinct)
-declare -A __vutil_seen_cpp_files
 __vutil_distinct_cpp_files=()
-for __vutil_cpp_file in "${CPP_FILES[@]}"; do
-    if [ "${__vutil_seen_cpp_files["${__vutil_cpp_file}"]+x}" == "" ]; then
-        __vutil_seen_cpp_files["${__vutil_cpp_file}"]=1
-        __vutil_distinct_cpp_files+=("${__vutil_cpp_file}")
-    fi
-done
+if [ "${BASH_VERSINFO[0]}" -ge 4 ]; then
+    declare -A __vutil_seen_cpp_files
+    for __vutil_cpp_file in "${CPP_FILES[@]}"; do
+        if [ "${__vutil_seen_cpp_files["${__vutil_cpp_file}"]+x}" == "" ]; then
+            __vutil_seen_cpp_files["${__vutil_cpp_file}"]=1
+            __vutil_distinct_cpp_files+=("${__vutil_cpp_file}")
+        fi
+    done
+    unset __vutil_seen_cpp_files
+else
+    for __vutil_cpp_file in "${CPP_FILES[@]}"; do
+        __vutil_cpp_file_exists=0
+        for __vutil_distinct_cpp_file in "${__vutil_distinct_cpp_files[@]}"; do
+            if [ "${__vutil_cpp_file}" == "${__vutil_distinct_cpp_file}" ]; then
+                __vutil_cpp_file_exists=1
+                break
+            fi
+        done
+        if [ "${__vutil_cpp_file_exists}" -eq 0 ]; then
+            __vutil_distinct_cpp_files+=("${__vutil_cpp_file}")
+        fi
+    done
+fi
 CPP_FILES=("${__vutil_distinct_cpp_files[@]}")
-unset __vutil_seen_cpp_files __vutil_distinct_cpp_files __vutil_cpp_file
+unset __vutil_distinct_cpp_files __vutil_cpp_file __vutil_cpp_file_exists __vutil_distinct_cpp_file
 
 for CPP_REMOVE in "${CPP_REMOVES[@]}"; do
     CPP_FILES=(${CPP_FILES[@]/$CPP_REMOVE})
@@ -32,7 +48,7 @@ CPP_FILE_LIST=("${CPP_FILES[@]}")
 printf -v CPP_FILES "%s\n" "${CPP_FILE_LIST[@]}"
 CPP_FILES=${CPP_FILES%?}
 
-O_FILES=`echo "${CPP_FILES}" | sed -r -e 's%([^/]*/)*([^/]+).cpp%./Obj/\2.o%g'`
+O_FILES=`echo "${CPP_FILES}" | sed -E -e 's%([^/]*/)*([^/]+).cpp%./Obj/\2.o%g'`
 O_FILES=`echo ${O_FILES}`
 
 printf "%s\n" "${CPP_FILE_LIST[@]}" > vmake.txt