Add a bash helper for finding an msvc bin path

bin/symbolic-link

@@ -24,5 +24,5 @@ fi
 
 if [[ $3 ]]; then expand_symlinks=$3; else expand_symlinks=0; fi
 
-confirm_link=1
+confirm_link=0
 link_file "$source_path" "$dest_path" $confirm_link $expand_symlinks

script_helpers/file_ops.sh

@@ -145,19 +145,15 @@ link_file() {
     os_is_windows is_windows
     os_is_unix is_unix
 
-    # @INSTEAD ESCAPE THE SPACES IN THE FINAL WINDOWS PATH
+    # @INSTEAD ESCAPE THE SPACES IN THE FINAL WINDOWS PATH:
-    # @INSTEAD ESCAPE THE SPACES IN THE FINAL WINDOWS PATH
+    # e.g. path="${path// /\\ }" # Add a backslash before spaces.
-    # @INSTEAD ESCAPE THE SPACES IN THE FINAL WINDOWS PATH
+    # https://stackoverflow.com/questions/1473981/how-to-check-if-a-string-has-spaces-in-bash-shell
-    # @INSTEAD ESCAPE THE SPACES IN THE FINAL WINDOWS PATH
+    # https://stackoverflow.com/questions/28256178/how-can-i-match-spaces-with-a-regexp-in-bash
-    # @INSTEAD ESCAPE THE SPACES IN THE FINAL WINDOWS PATH
-    # @INSTEAD ESCAPE THE SPACES IN THE FINAL WINDOWS PATH
-    #https://stackoverflow.com/questions/1473981/how-to-check-if-a-string-has-spaces-in-bash-shell
-    #https://stackoverflow.com/questions/28256178/how-can-i-match-spaces-with-a-regexp-in-bash
 
     source_has_space=$(path_has_a_space "$source_path")
     dest_has_space=$(path_has_a_space "$dest_path")
 
-    debug=1
+    debug=0
     if [[ $debug -eq 1 ]]; then
         echo source path: $source_path
         echo dest path: $dest_path

script_helpers/msvc.sh

@@ -0,0 +1,82 @@
+#!/bin/bash
+
+#---------------------------------------------------------------------------------------------------
+# API
+#---------------------------------------------------------------------------------------------------
+
+# If you're using msys/mingw shell for compiling then it's possible for its gcc
+# link.exe to take precedence over the VC link.exe simply due to the path
+# order. We get around this by prefixing all VC tools with the active VC arch
+# bin path.
+#
+# This will only work if the shell ran vcvarsall.bat.
+
+get_msvc_bin_path() {
+    declare -n _path=$1
+    declare -n _x64_toolset=$2
+
+    _path=""
+    _x64_toolset=0
+
+    if [[ $VisualStudioVersion == "14.0" ]]; then
+        ##########################################
+        # Visual Studio 2015
+        ##########################################
+        _path="$VCINSTALLDIR"
+
+        if [[ $(env | grep "LIB=" | grep "x64") != "" ]]; then
+            printf "${BOLD}${YELLOW}[VS2015 X64]${NORMAL}\n"
+            _x64_toolset=1
+            _path+="bin/amd64"
+        elif [[ $(env | grep "LIB=" | grep "x86") != "" ]]; then
+            printf "${BOLD}${YELLOW}[VS2015 X86]${NORMAL}\n"
+            _path+="bin/"
+        else
+            error "Unable to determine if you're using an x86 or x64 MSVC toolset\n"
+            exit 1
+        fi
+    elif [[ $VisualStudioVersion == "15.0" ]]; then
+        ##########################################
+        # Visual Studio 2017
+        ##########################################
+        _path="$VCToolsInstallDir"
+
+        if [[ $VSCMD_ARG_HOST_ARCH == "x64" ]]; then
+            printf "${BOLD}${YELLOW}[VS2017 X64]${NORMAL}\n"
+            _x64_toolset=1
+            _path+="bin/Hostx64/x64"
+        elif [[ $VSCMD_ARG_HOST_ARCH == "x86" ]]; then
+            printf "${BOLD}${YELLOW}[VS2017 X86]${NORMAL}\n"
+            _path+="bin/Hostx86/x86"
+        else
+            error "Unable to determine if you're using an x86 or x64 MSVC toolset\n"
+            exit 1
+        fi
+    elif [[ $VisualStudioVersion == "16.0" ]]; then
+        ##########################################
+        # Visual Studio 2019
+        ##########################################
+        _path="$VCToolsInstallDir"
+
+        if [[ $VSCMD_ARG_HOST_ARCH == "x64" ]]; then
+            printf "${BOLD}${YELLOW}[VS2019 X64]${NORMAL}\n"
+            _x64_toolset=1
+            _path+="bin/Hostx64/x64"
+        elif [[ $VSCMD_ARG_HOST_ARCH == "x86" ]]; then
+            printf "${BOLD}${YELLOW}[VS2019 X86]${NORMAL}\n"
+            _path+="bin/Hostx86/x86"
+        else
+            error "Unable to determine if you're using an x86 or x64 MSVC toolset\n"
+            exit 1
+        fi
+    else
+        error "Either you don't have Visual Studio installed or it's not supported by this script.\nFound version '$VisualStudioVersion'\n"
+        exit 1
+    fi
+
+    # Fix up the path
+    _path="/${_path/:/}"    # Remove ':'.
+    _path="${_path//\\//}"  # Remove Windows slashes.
+    _path="${_path// /\\ }" # Add a backslash before spaces.
+}
+