guild-deploy option to download mithril binaries

scripts/cnode-helper-scripts/guild-deploy.sh

@@ -61,7 +61,7 @@ versionCheck() { printf '%s\n%s' "${1//v/}" "${2//v/}" | sort -C -V; } #$1=avail
 usage() {
   cat <<-EOF >&2
 		
-		Usage: $(basename "$0") [-n <mainnet|preprod|guild|preview>] [-p path] [-t <name>] [-b <branch>] [-u] [-s [p][b][l][f][d][c][o][w][x]]
+		Usage: $(basename "$0") [-n <mainnet|preprod|guild|preview>] [-p path] [-t <name>] [-b <branch>] [-u] [-s [p][b][l][m][f][d][c][o][w][x]]
 		Set up dependencies for building/using common tools across cardano ecosystem.
 		The script will always update dynamic content from existing scripts retaining existing user variables
 		
@@ -74,6 +74,7 @@ usage() {
 		  p   Install common pre-requisite OS-level Dependencies for most tools on this repo (Default: skip)
 		  b   Install OS level dependencies for tools required while building cardano-node/cardano-db-sync components (Default: skip)
 		  l   Build and Install libsodium fork from IO repositories (Default: skip)
+		  m   Build and install mithril from IO repositories (Default: skip)
 		  f   Force overwrite entire content of scripts and config files (backups of existing ones will be created) (Default: skip)
 		  d   Download latest (released) binaries for bech32, cardano-address, cardano-node, cardano-cli, cardano-db-sync and cardano-submit-api (Default: skip)
 		  c   Install/Upgrade CNCLI binary (Default: skip)
@@ -92,6 +93,7 @@ set_defaults() {
   [[ -z ${WANT_BUILD_DEPS} ]] && WANT_BUILD_DEPS='N'
   [[ -z ${FORCE_OVERWRITE} ]] && FORCE_OVERWRITE='N'
   [[ -z ${LIBSODIUM_FORK} ]] && LIBSODIUM_FORK='N'
+  [[ -z ${INSTALL_MITHRIL} ]] && INSTALL_MITHRIL='N'
   [[ -z ${INSTALL_CNCLI} ]] && INSTALL_CNCLI='N'
   [[ -z ${INSTALL_CWHCLI} ]] && INSTALL_CWHCLI='N'
   [[ -z ${INSTALL_OGMIOS} ]] && INSTALL_OGMIOS='N'
@@ -322,6 +324,25 @@ build_libsodium() {
   echo -e "\nIOG fork of libsodium installed to /usr/local/lib/"
 }
 
+# Build mithril
+download_mithril() {
+    echo -e "\nDownloading mithril binaries..."
+    pushd "${HOME}"/tmp >/dev/null || err_exit
+    # hardcoded latest release requiring a bump
+    # latest_release="2337.0"
+    # dynamic latest release updated automatically
+    latest_release=$(curl --silent "https://api.github.com/repos/input-output-hk/mithril/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/')
+    echo -e "\n  Downloading mithril ${latest_release}..."
+    rm -f mithril-signer mithril-client
+    curl -m 200 -sfL https://github.com/input-output-hk/mithril/releases/download/${latest_release}/mithril-${latest_release}-linux-x64.tar.gz -o mithril.tar.gz || err_exit " Could not download mithril's latest release archive from IO github!"
+    tar zxf mithril.tar.gz mithril-signer mithril-client &>/dev/null
+    rm -f mithril.tar.gz
+    [[ -f mithril-signer ]] || err_exit " mithril archive downloaded but binary (mithril-signer) not found after extracting package!"
+    [[ -f mithril-client ]] || err_exit " mithril archive downloaded but binary (mithril-client) not found after extracting package!"
+    mv -t "${HOME}"/.local/bin mithril-signer mithril-client
+    chmod +x "${HOME}"/.local/bin/*
+}
+
 # Download cardano-node, cardano-cli, cardano-db-sync, bech32 and cardano-submit-api
 # TODO: Replace these with self-hosted ones (potentially consider IPFS as upload destination for CI)
 download_cnodebins() {
@@ -591,6 +612,7 @@ parse_args() {
     [[ "${S_ARGS}" =~ "p" ]] && INSTALL_OS_DEPS="Y"
     [[ "${S_ARGS}" =~ "b" ]] && INSTALL_OS_DEPS="Y" && WANT_BUILD_DEPS="Y"
     [[ "${S_ARGS}" =~ "l" ]] && INSTALL_OS_DEPS="Y" && WANT_BUILD_DEPS="Y" && INSTALL_LIBSODIUM_FORK="Y"
+    [[ "${S_ARGS}" =~ "m" ]] && INSTALL_MITHRIL="Y" && WANT_BUILD_DEPS="Y"
     [[ "${S_ARGS}" =~ "f" ]] && FORCE_OVERWRITE="Y" && POPULATE_CNODE="F"
     [[ "${S_ARGS}" =~ "d" ]] && INSTALL_CNODEBINS="Y"
     [[ "${S_ARGS}" =~ "c" ]] && INSTALL_CNCLI="Y"
@@ -613,6 +635,7 @@ main_flow() {
   [[ "${INSTALL_OS_DEPS}" == "Y" ]] && os_dependencies
   [[ "${WANT_BUILD_DEPS}" == "Y" ]] && build_dependencies
   [[ "${INSTALL_LIBSODIUM_FORK}" == "Y" ]] && build_libsodium
+  [[ "${INSTALL_MITHRIL}" == "Y" ]] && download_mithril
   [[ "${FORCE_OVERWRITE}" == "Y" ]] && POPULATE_CNODE="F" && populate_cnode
   [[ "${POPULATE_CNODE}" == "Y" ]] && populate_cnode
   [[ "${INSTALL_CNODEBINS}" == "Y" ]] && download_cnodebins