Update install solvers script to the one from Inox (+bitwuzla)

Author: sankalpgambhir

scripts/install_solvers.sh

@@ -1,8 +1,21 @@
 #!/usr/bin/env sh
 
+if [ "$INSTALL_SOLVERS" != "1" ]; then
+  echo "Skipping solver installation"
+  exit 0
+fi
+
+INFO_MSG="[INFO]"
+WARN_MSG="\033[33m[WARNING]\033[0m"
+ERROR_MSG="\033[1;31m[ERROR]\033[0m"
+
+# curl command with default flags
+CURL='curl -L -s -C -'
+
 TEMP_DIR="$(pwd)/temp"
 SOLVERS_DIR=${1:-"$(pwd)/solvers"}
 
+# check for set version or default to known working (for script) versions
 Z3_VER=${2:-"4.15.1"}
 CVC4_VER=${3:-"1.8"}
 CVC5_VER=${4:-"1.2.1"}
@@ -14,45 +27,76 @@ SHORT_ARCH=$(uname -m | sed 's/x86_64/x64/;s/aarch64/arm64/;')
 
 # libc linked against z3
 # (glibc for Linux, osx for macOS)
-LIBC_NAME=$(uname -s | tr '[:upper:]' '[:lower:]' | sed 's/darwin/osx/;s/linux/glibc/;')
+Z3_LIBC_NAME=$(uname -s | tr '[:upper:]' '[:lower:]' | sed 's/darwin/osx/;s/linux/glibc/;')
+
+# os names as used by CVC5 builds
+CVC5_OS_NAME=$(uname -s | tr '[:upper:]' '[:lower:]' | sed 's/darwin/macOS/;s/linux/Linux/;')
 
 mkdir -p "$SOLVERS_DIR"
 mkdir -p "$TEMP_DIR"
+
+reset_temp_dir() {
+  rm -rf "$TEMP_DIR"
+  mkdir -p "$TEMP_DIR"
+}
+
+echo "$INFO_MSG Installing Solvers to $SOLVERS_DIR"
+
 # cvc5
-wget -c "https://github.com/cvc5/cvc5/releases/download/cvc5-${CVC5_VER}/cvc5-Linux-${ARCH}-static.zip" -O "$TEMP_DIR/cvc5.zip" -q
-unzip "$TEMP_DIR/cvc5.zip" -d "$TEMP_DIR" 
+echo "$INFO_MSG Installing cvc5 (v${CVC5_VER})"
+
+$CURL "https://github.com/cvc5/cvc5/releases/download/cvc5-${CVC5_VER}/cvc5-${CVC5_OS_NAME}-${ARCH}-static.zip" --output "$TEMP_DIR/cvc5.zip"
+unzip -q "$TEMP_DIR/cvc5.zip" -d "$TEMP_DIR" 
 CVC5_DIR=$(find "$TEMP_DIR" -mindepth 1 -maxdepth 1 -type d -name "*cvc5*")
 mv "$CVC5_DIR/bin/cvc5" "$SOLVERS_DIR/cvc5"
 chmod +x "$SOLVERS_DIR/cvc5"
-rm -rf "$TEMP_DIR"
 
-# # CVC4
-wget -c "https://cvc4.cs.stanford.edu/downloads/builds/x86_64-linux-opt/cvc4-${CVC4_VER}-x86_64-linux-opt" -O "$SOLVERS_DIR/cvc4" -q
+reset_temp_dir
+
+# CVC4
+echo "$INFO_MSG Installing CVC4 (v${CVC4_VER})"
+
+if [ "$CVC5_OS_NAME" = "macOS" ]; then
+  echo "$WARN_MSG CVC4 installation on macOS; defaulting to only build available (x86_64 v1.8)"
+  $CURL "https://github.com/CVC4/CVC4-archived/releases/download/1.8/cvc4-1.8-macos-opt" --output "$SOLVERS_DIR/cvc4"
+elif [ "$CVC5_OS_NAME" = "Linux" ]; then
+  $CURL "https://cvc4.cs.stanford.edu/downloads/builds/x86_64-linux-opt/cvc4-${CVC4_VER}-x86_64-linux-opt" --output "$SOLVERS_DIR/cvc4"
+else
+  echo "$ERROR_MSG CVC4 installation not supported on unknown OS: $CVC5_OS_NAME"
+  exit 1
+fi
 chmod +x "$SOLVERS_DIR/cvc4"
 
+reset_temp_dir
+
 # z3
-mkdir -p "$TEMP_DIR"
-Z3_FILE_PREFIX="z3-${Z3_VER}-${SHORT_ARCH}-${LIBC_NAME}"
+echo "$INFO_MSG Installing Z3 (v${Z3_VER})"
+
+# z3 release file names contain libc versions in them, which makes them hard to
+# guess. Just get the correct one via the GitHub release API.
+Z3_FILE_PREFIX="z3-${Z3_VER}-${SHORT_ARCH}-${Z3_LIBC_NAME}" # followed by -<libcversion>.zip
 Z3_URL=$(
-  curl -s "https://api.github.com/repos/Z3Prover/z3/releases/tags/z3-${Z3_VER}" | # get release info
-  grep "browser_download_url.*${Z3_FILE_PREFIX}" | #| # find url for the correct build
+  $CURL "https://api.github.com/repos/Z3Prover/z3/releases/tags/z3-${Z3_VER}" | # get release info
+  grep "browser_download_url.*${Z3_FILE_PREFIX}" | # find url for the correct build
   sed 's/^.*: //;s/^"//;s/"$//' # strip non-url
 )
-wget -c "${Z3_URL}" -O "$TEMP_DIR/z3.zip" -q
-unzip "$TEMP_DIR/z3.zip" -d "$TEMP_DIR" 
+$CURL "${Z3_URL}" --output "$TEMP_DIR/z3.zip"
+unzip -q "$TEMP_DIR/z3.zip" -d "$TEMP_DIR" 
 Z3_DIR=$(find "$TEMP_DIR" -mindepth 1 -maxdepth 1 -type d -name "*z3*")
 mv "$Z3_DIR/bin/z3" "$SOLVERS_DIR/z3"
 chmod +x "$SOLVERS_DIR/z3"
 rm -rf "$TEMP_DIR"
 
 # Bitwuzla
+echo "$INFO_MSG Installing Bitwuzla (v${BITWUZLA_VER})"
+
 mkdir -p "$TEMP_DIR"
-wget -c https://github.com/bitwuzla/bitwuzla/releases/download/${BITWUZLA_VER}/Bitwuzla-Linux-x86_64-static.zip -O "$TEMP_DIR/bitwuzla.zip" -q
-unzip "$TEMP_DIR/bitwuzla.zip" -d "$TEMP_DIR" 
+$CURL -L https://github.com/bitwuzla/bitwuzla/releases/download/${BITWUZLA_VER}/Bitwuzla-Linux-x86_64-static.zip --output "$TEMP_DIR/bitwuzla.zip"
+unzip -q "$TEMP_DIR/bitwuzla.zip" -d "$TEMP_DIR" 
 BITWUZLA_DIR=$(find "$TEMP_DIR" -mindepth 1 -maxdepth 1 -type d -name "*Bitwuzla*")
 mv "$BITWUZLA_DIR/bin/bitwuzla" "$SOLVERS_DIR/bitwuzla"
 chmod +x "$SOLVERS_DIR/bitwuzla"
 rm -rf "$TEMP_DIR"
 
-echo "************** Solvers Installed **************"
-exit 0
+echo "$INFO_MSG Solvers Installed"
+exit 0