From 946811068fcd3e82bd98ce86dc44c0eca1c87c6d Mon Sep 17 00:00:00 2001
From: "Miso Zmiric (Mike Squinter)" <miso.zmiric@gmail.com>
Date: Sun, 5 Jul 2015 21:08:16 +0100
Subject: [PATCH 1/2] add local libversion checks for VS (via powershell)

---
 .gitignore    |  1 +
 pre-build.ps1 | 26 ++++++++++++++++++++++++--
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/.gitignore b/.gitignore
index a23212bf70..9a83493328 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,6 +13,7 @@ distribution/windows/*.exe
 
 #lib
 lib
+libversion
 
 #################
 ## Eclipse
diff --git a/pre-build.ps1 b/pre-build.ps1
index a4b2246d58..938f4c7f7b 100644
--- a/pre-build.ps1
+++ b/pre-build.ps1
@@ -1,11 +1,33 @@
+#init
+$libversion = 1
 $path = Split-Path $Script:MyInvocation.MyCommand.Path
 $zip = $path+'\orctlibs.zip'
 $libs = $path+'\lib'
+$libsVFile = $path+'\libversion'
 $libsTest = Test-Path $libs
-if (!$libsTest) {
-	mkdir $libs
+
+#libs version test
+$libsVersionTest = Test-Path $libsVFile
+$currentVersion = 0
+$needsdownload = $true
+if ($libsVersionTest) {
+    $currentVersion = [IO.File]::ReadAllText($libsVFile)
+}
+if ($currentVersion -ge $libversion) {
+    $needsdownload = $false
+}
+
+#download
+if (!$libsTest -or $needsdownload) {
+	if ($libsTest) {
+        rm $libs -Recurse -Force
+    }
+    mkdir $libs
 	Invoke-WebRequest https://download.openrct2.website/dev/lib/vs -OutFile $path\orctlibs.zip
 	[System.Reflection.Assembly]::LoadWithPartialName('System.IO.Compression.FileSystem') > $null
 	[System.IO.Compression.ZipFile]::ExtractToDirectory($zip, $libs)
 	rm $path\orctlibs.zip -Force -ErrorAction SilentlyContinue
+    $libversion | Set-Content $libsVFile
+} else {
+    echo 'All libs up to date'
 }

From 87ea04c002b889bc472a874b206b4a6e2da9ef44 Mon Sep 17 00:00:00 2001
From: "Miso Zmiric (Mike Squinter)" <miso.zmiric@gmail.com>
Date: Sun, 5 Jul 2015 22:39:35 +0100
Subject: [PATCH 2/2] add libversion checks to mingw build

---
 build.sh | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/build.sh b/build.sh
index 9a96a9851d..8835abe2c6 100755
--- a/build.sh
+++ b/build.sh
@@ -2,10 +2,51 @@
 
 set -e
 
+cachedir=.cache
+mkdir -p $cachedir
+
 if [[ ! -d build ]]; then
 	mkdir -p build
 fi
 
+libversion=1
+libVFile="./libversion"
+libdir="./lib"
+currentversion=0
+needsdownload="true"
+
+if [ -f $libVFile ]; then 
+    while read line; do    
+        currentversion=$line  
+        continue 
+    done < $libVFile
+fi
+
+if [ $currentversion -ge $libversion ]; then
+    needsdownload="false"
+fi
+
+if [ ! -d $libdir ]; then
+    needsdownload="true"    
+fi
+    
+if [[ "$needsdownload" = "true" ]]; then
+    echo "New libraries need to be downloaded, the script might ask you for sudo access password"
+    rm -rf ./lib
+    if [[ -f $cachedir/orctlibs.zip ]]; then 
+        rm -rf $cachedir/orctlibs.zip
+    fi
+    if [[ -d /usr/local/cross-tools/orctlibs ]]; then
+        sudo rm -rf /usr/local/cross-tools/orctlibs
+    fi
+    curl https://download.openrct2.website/dev/lib/mingw -o $cachedir/orctlibs.zip;
+    sudo mkdir -p /usr/local/cross-tools/orctlibs
+    mkdir -p lib
+    sudo cp -rf $cachedir/orctlibs/glob/* /usr/local/cross-tools/orctlibs/.
+    cp -rf $cachedir/orctlibs/local/* ./lib/. 
+    echo $libversion > $libVFile
+fi
+
 pushd build
 	cmake -DCMAKE_TOOLCHAIN_FILE=../CMakeLists_mingw.txt -DCMAKE_BUILD_TYPE=Debug  ..
 	make