Add github actions for windows llvm

.ci/deploy-llvm.sh

@@ -0,0 +1,20 @@
+#!/bin/sh -ex
+
+# First let's print some info about our caches
+"$(cygpath -u "$CCACHE_BIN_DIR")"/ccache.exe --show-stats -v
+
+# BUILD_blablabla is Azure specific, so we wrap it for portability
+ARTIFACT_DIR="$BUILD_ARTIFACTSTAGINGDIRECTORY"
+BUILD="llvmlibs_mt.7z"
+
+# Package artifacts
+7z a -m0=LZMA2 -mx9 "$BUILD" ./build/lib/Release-x64/llvm_build
+
+# Generate sha256 hashes
+# Write to file for GitHub releases
+sha256sum "$BUILD" | awk '{ print $1 }' | tee "$BUILD.sha256"
+echo "$(cat "$BUILD.sha256");$(stat -c %s "$BUILD")B" > GitHubReleaseMessage.txt
+
+# Move files to publishing directory
+cp -- "$BUILD" "$ARTIFACT_DIR"
+cp -- "$BUILD.sha256" "$ARTIFACT_DIR"

.ci/deploy-windows.sh

@@ -1,6 +1,6 @@
 #!/bin/sh -ex
 
-# First let's see print some info about our caches
+# First let's print some info about our caches
 "$(cygpath -u "$CCACHE_BIN_DIR")"/ccache.exe --show-stats -v
 
 # BUILD_blablabla is Azure specific, so we wrap it for portability

.ci/setup-llvm.sh

@@ -0,0 +1,63 @@
+#!/bin/sh -ex
+
+# Resource/dependency URLs
+CCACHE_URL="https://github.com/ccache/ccache/releases/download/v4.11.2/ccache-4.11.2-windows-x86_64.zip"
+
+DEP_URLS="         \
+    $CCACHE_URL"
+
+# CI doesn't make a cache dir if it doesn't exist, so we do it manually
+[ -d "$DEPS_CACHE_DIR" ] || mkdir "$DEPS_CACHE_DIR"
+
+# Pull the llvm submodule
+# shellcheck disable=SC2046
+git submodule -q update --init --depth=1 -- 3rdparty/llvm
+
+# Git bash doesn't have rev, so here it is
+rev()
+{
+    echo "$1" | awk '{ for(i = length($0); i != 0; --i) { a = a substr($0, i, 1); } } END { print a }'
+}
+
+# Usage: download_and_verify url checksum algo file
+# Check to see if a file is already cached, and the checksum matches. If not, download it.
+# Tries up to 3 times
+download_and_verify()
+{
+    url="$1"
+    correctChecksum="$2"
+    algo="$3"
+    fileName="$4"
+
+    for _ in 1 2 3; do
+        [ -e "$DEPS_CACHE_DIR/$fileName" ] || curl -fLo "$DEPS_CACHE_DIR/$fileName" "$url"
+        fileChecksum=$("${algo}sum" "$DEPS_CACHE_DIR/$fileName" | awk '{ print $1 }')
+        [ "$fileChecksum" = "$correctChecksum" ] && return 0
+    done
+
+    return 1;
+}
+
+# Some dependencies install here
+[ -d "./build/lib_ext/Release-x64" ] || mkdir -p "./build/lib_ext/Release-x64"
+
+for url in $DEP_URLS; do
+    # Get the filename from the URL and remove query strings (?arg=something).
+    fileName="$(rev "$(rev "$url" | cut -d'/' -f1)" | cut -d'?' -f1)"
+    [ -z "$fileName" ] && echo "Unable to parse url: $url" && exit 1
+
+    # shellcheck disable=SC1003
+    case "$url" in
+    *ccache*) checksum=$CCACHE_SHA; algo="sha256"; outDir="$CCACHE_BIN_DIR" ;;
+    *) echo "Unknown url resource: $url"; exit 1 ;;
+    esac
+
+    download_and_verify "$url" "$checksum" "$algo" "$fileName"
+    7z x -y "$DEPS_CACHE_DIR/$fileName" -aos -o"$outDir"
+done
+
+# Setup ccache tool
+[ -d "$CCACHE_DIR" ] || mkdir -p "$(cygpath -u "$CCACHE_DIR")"
+CCACHE_SH_DIR=$(cygpath -u "$CCACHE_BIN_DIR")
+mv "$CCACHE_SH_DIR"/ccache-*/* "$CCACHE_SH_DIR"
+cp "$CCACHE_SH_DIR"/ccache.exe "$CCACHE_SH_DIR"/cl.exe