[boost-locale] Replace VCPKG_TARGET_IS_WINDOWS in b2-options (#14502)

* [boost-locale] Use CMAKE_SYSTEM_NAME as a fallback where VCPKG_TARGET_IS_WINDOWS is not available

* fix this issue in a different way

* Remove comments in b2-options.cmake.in

Co-authored-by: nicole mazzuca <mazzucan@outlook.com>

* fix generate-ports.ps1

Co-authored-by: Nicole Mazzuca <mazzucan@outlook.com>

ports/boost-locale/CONTROL

@@ -1,6 +1,7 @@
-# Automatically generated by boost-vcpkg-helpers/generate-ports.ps1
+# Automatically generated by scripts/boost/generate-ports.ps1
 Source: boost-locale
 Version: 1.74.0
+Port-Version: 1
 Build-Depends: boost-assert, boost-build, boost-config, boost-function, boost-integer, boost-iterator, boost-modular-build-helper, boost-smart-ptr, boost-static-assert, boost-system, boost-thread, boost-type-traits, boost-unordered, boost-vcpkg-helpers, libiconv (!uwp&!windows)
 Homepage: https://github.com/boostorg/locale
 Description: Boost locale module

ports/boost-locale/b2-options.cmake.in

@@ -1,15 +1,16 @@
-if(VCPKG_TARGET_IS_WINDOWS)
-    if("icu" IN_LIST FEATURES)
-        set(BOOST_LOCALE_ICU on)
-    else()
-        set(BOOST_LOCALE_ICU off)
-    endif()
+set(_B2_OPTIONS_FEATURES "@FEATURES@")
+if("icu" IN_LIST _B2_OPTIONS_FEATURES)
+    set(BOOST_LOCALE_ICU_FEATURE on)
+else()
+    set(BOOST_LOCALE_ICU_FEATURE off)
+endif()
 
+if(@VCPKG_TARGET_IS_WINDOWS@)
     list(APPEND B2_OPTIONS
         boost.locale.iconv=off
         boost.locale.posix=off
         /boost/locale//boost_locale
-        boost.locale.icu=${BOOST_LOCALE_ICU}
+        boost.locale.icu=${BOOST_LOCALE_ICU_FEATURE}
     )
 else()
     find_library(LIBICONV_LIBRARY iconv)
@@ -19,7 +20,7 @@ else()
         boost.locale.iconv=on
         boost.locale.posix=on
         /boost/locale//boost_locale
-        boost.locale.icu=off
+        boost.locale.icu=${BOOST_LOCALE_ICU_FEATURE}
         -sICONV_PATH=${LIBICONV_DIR}
     )
     if(VCPKG_CMAKE_SYSTEM_NAME STREQUAL "Emscripten" OR VCPKG_TARGET_ARCHITECTURE STREQUAL "wasm32")

ports/boost-locale/portfile.cmake

@@ -1,4 +1,4 @@
-# Automatically generated by boost-vcpkg-helpers/generate-ports.ps1
+# Automatically generated by scripts/boost/generate-ports.ps1
 
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
@@ -12,9 +12,14 @@ vcpkg_from_github(
 )
 
 include(${CURRENT_INSTALLED_DIR}/share/boost-build/boost-modular-build.cmake)
+configure_file(
+    "${CMAKE_CURRENT_LIST_DIR}/b2-options.cmake.in"
+    "${CURRENT_BUILDTREES_DIR}/vcpkg-b2-options.cmake"
+    @ONLY
+)
 boost_modular_build(
     SOURCE_PATH ${SOURCE_PATH}
-    BOOST_CMAKE_FRAGMENT "${CMAKE_CURRENT_LIST_DIR}/b2-options.cmake"
+    BOOST_CMAKE_FRAGMENT "${CURRENT_BUILDTREES_DIR}/vcpkg-b2-options.cmake"
 )
 include(${CURRENT_INSTALLED_DIR}/share/boost-vcpkg-helpers/boost-modular-headers.cmake)
 boost_modular_headers(SOURCE_PATH ${SOURCE_PATH})

scripts/boost/generate-ports.ps1

@@ -5,15 +5,27 @@ param (
     $portsDir = $null
 )
 
+$ErrorActionPreference = 'Stop'
+
 $scriptsDir = split-path -parent $MyInvocation.MyCommand.Definition
 if ($null -eq $portsDir)
 {
     $portsDir = "$scriptsDir/../../ports"
 }
 
+if ($IsWindows)
+{
+    $vcpkg = "$scriptsDir/../../vcpkg.exe"
+}
+else
+{
+    $vcpkg = "$scriptsDir/../../vcpkg"
+}
+
 # Optionally clear this array when moving to a new boost version
 $port_versions = @{
     #e.g.  "asio" = 1;
+    "locale" = 1;
 }
 
 $per_port_data = @{
@@ -82,7 +94,7 @@ function Generate()
 
     mkdir "$portsDir/boost-$PortName" -erroraction SilentlyContinue | out-null
     $controlLines = @(
-        "# Automatically generated by boost-vcpkg-helpers/generate-ports.ps1"
+        "# Automatically generated by scripts/boost/generate-ports.ps1"
         "Source: boost-$PortName"
         "Version: $version"
     )
@@ -106,7 +118,7 @@ function Generate()
     $controlLines | out-file -enc ascii "$portsDir/boost-$PortName/CONTROL"
 
     $portfileLines = @(
-        "# Automatically generated by boost-vcpkg-helpers/generate-ports.ps1"
+        "# Automatically generated by scripts/boost/generate-ports.ps1"
         ""
     )
 
@@ -167,6 +179,20 @@ function Generate()
                 ")"
             )
         }
+        elseif (Test-Path "$portsDir/boost-$PortName/b2-options.cmake.in")
+        {
+            $portfileLines += @(
+                'configure_file('
+                '    "${CMAKE_CURRENT_LIST_DIR}/b2-options.cmake.in"'
+                '    "${CURRENT_BUILDTREES_DIR}/vcpkg-b2-options.cmake"'
+                '    @ONLY'
+                ')'
+                'boost_modular_build('
+                '    SOURCE_PATH ${SOURCE_PATH}'
+                '    BOOST_CMAKE_FRAGMENT "${CURRENT_BUILDTREES_DIR}/vcpkg-b2-options.cmake"'
+                ')'
+            )
+        }
         else
         {
             $portfileLines += @(
@@ -249,9 +275,9 @@ foreach ($library in $libraries)
     if (!(Test-Path $archive))
     {
         "Downloading boost/$library..."
-        & @(vcpkg fetch aria2)[-1] "https://github.com/boostorg/$library/archive/boost-$version.tar.gz" -d "$scriptsDir/downloads" -o "$library-boost-$version.tar.gz"
+        & @(& $vcpkg fetch aria2)[-1] "https://github.com/boostorg/$library/archive/boost-$version.tar.gz" -d "$scriptsDir/downloads" -o "$library-boost-$version.tar.gz"
     }
-    $hash = vcpkg hash $archive
+    $hash = & $vcpkg hash $archive
     $unpacked = "$scriptsDir/libs/$library-boost-$version"
     if (!(Test-Path $unpacked))
     {
@@ -408,7 +434,7 @@ if ($libraries_in_boost_port.length -gt 1) {
     $boostDependsList = @($libraries_in_boost_port | % { "boost-$_" } | ? { $_ -notmatch "boost-mpi" }) -join ", "
 
     @(
-        "# Automatically generated by boost-vcpkg-helpers/generate-ports.ps1"
+        "# Automatically generated by scripts/boost/generate-ports.ps1"
         "Source: boost"
         "Version: $version"
         "Port-Version: $($port_versions.boost)"