Rewrite build_win.ps1 in Bash

Author: cameel

.circleci/build_win.ps1

@@ -1640,8 +1640,7 @@ jobs:
             - .\deps
       - run:
           name: "Building solidity"
-          command: .circleci/build_win.ps1
-          shell: powershell.exe
+          command: scripts/ci/build_win.sh
       - run:
           name: "Run solc.exe to make sure build was successful."
           command: .\build\solc\Release\solc.exe --version

.circleci/config.yml

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+(( $# <= 1 )) || { >&2 echo "Usage: $0 [PRERELEASE_SOURCE]"; exit 1; }
+ROOTDIR="$(dirname "$0")/../.."
+prerelease_source="${1:-ci}"
+
+cd "$ROOTDIR"
+if [[ -n $FORCE_RELEASE || -n $CIRCLE_TAG ]]; then
+    echo -n > prerelease.txt
+else
+    # Use last commit date rather than build date to avoid ending up with builds for
+    # different platforms having different version strings (and therefore producing different bytecode)
+    # if the CI is triggered just before midnight.
+    TZ=UTC git show --quiet --date="format-local:%Y.%-m.%-d" --format="${prerelease_source}.%cd"
+fi
+
+mkdir build/
+cd build/
+
+"${ROOTDIR}/deps/cmake/bin/cmake" \
+    -G "Visual Studio 16 2019" \
+    -DBoost_DIR="${ROOTDIR}/deps/boost/lib/cmake/Boost-"* \
+    -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded \
+    -DCMAKE_INSTALL_PREFIX="${ROOTDIR}/uploads/" \
+    ..
+msbuild solidity.sln \
+    "/p:Configuration=Release" \
+    "/m:10" \
+    "/v:minimal"
+"${ROOTDIR}/deps/cmake/bin/cmake" \
+    --build . \
+    -j 10 \
+    --target install \
+    --config Release