Updated the build.sh to get Proxygen installed correctly on CentOS dev severs

Summary:
Current build.sh script of Proxygen fails to build on the CentOS dev servers (which are also used for the Confidential virtual machines). On investigation, I found 3 errors:
a). lsb_release is not installed by default
b). Reqiures installation of fast_float-devel
c). Requires setting up of proxy server settings so that it could seamlessly download the github repos.

The diff does not change anything for the existing systems, but instead make it work seamlessly for the CentOS servers with proxy server.

Reviewed By: kvtsoy

Differential Revision: D69965614

fbshipit-source-id: 1eebb1b8b3accf6aa7f130a805539cd516e7a864

Author: agankur21

proxygen/build.sh

@@ -20,11 +20,18 @@ COLOR_OFF="\033[0m"
 function detect_platform() {
   unameOut="$(uname -s)"
   case "${unameOut}" in
-      Linux*)     PLATFORM=Linux; DISTRO="$(lsb_release -is)";;
+      Linux*)
+        PLATFORM=Linux
+        if [ -x "$(command -v lsb_release)" ]; then
+          DISTRO="$(lsb_release -is)"
+        else
+          DISTRO="CentOS"
+        fi
+        ;;
       Darwin*)    PLATFORM=Mac;;
       *)          PLATFORM="UNKNOWN:${unameOut}"
   esac
-  echo -e "${COLOR_GREEN}Detected platform: $PLATFORM ${COLOR_OFF}"
+  echo -e "${COLOR_GREEN}Detected platform: $PLATFORM  Distribution $DISTRO ${COLOR_OFF}"
 }
 
 function install_dependencies_linux_default() {
@@ -83,6 +90,38 @@ function install_dependencies_linux_fedora() {
     gperf
 }
 
+function install_dependencies_linux_centos() {
+  sudo dnf install -y \
+    $deps_universal \
+    m4 \
+    g++ \
+    flex \
+    bison \
+    fast_float-devel \
+    gflags-devel \
+    glog-devel \
+    krb5-libs \
+    double-conversion-devel \
+    libzstd-devel \
+    libsodium-devel \
+    binutils-devel \
+    zlib-devel \
+    make \
+    lz4-devel \
+    wget \
+    unzip \
+    snappy-devel \
+    jemalloc-devel \
+    boost-devel\
+    cyrus-sasl-devel \
+    numactl-libs \
+    openssl-devel \
+    libcap-devel \
+    libevent-devel \
+    libtool \
+    gperf
+}
+
 function install_dependencies_linux {
   deps_universal="\
     git \
@@ -98,6 +137,7 @@ function install_dependencies_linux {
 
   case "$DISTRO" in
       Fedora*)    install_dependencies_linux_fedora;;
+      CentOS*)    install_dependencies_linux_centos;;
       *)          install_dependencies_linux_default;;
   esac
 }
@@ -405,7 +445,10 @@ INSTALL_DEPENDENCIES=true
 FETCH_DEPENDENCIES=true
 PREFIX=""
 COMPILER_FLAGS=""
-USAGE="./build.sh [-j num_jobs] [-m|--no-jemalloc] [--no-install-dependencies] [-p|--prefix] [-x|--compiler-flags] [--no-fetch-dependencies]"
+PROXY_SERVER_HOST=""
+PROXY_SERVER_PORT="8080"
+
+USAGE="./build.sh [-j num_jobs] [-m|--no-jemalloc] [--no-install-dependencies] [-p|--prefix] [-x|--compiler-flags] [--no-fetch-dependencies] [--proxy_server_host] [--proxy_server_port]"
 while [ "$1" != "" ]; do
   case $1 in
     -j | --jobs ) shift
@@ -434,6 +477,14 @@ while [ "$1" != "" ]; do
                   shift
                   COMPILER_FLAGS=$1
       ;;
+    --proxy_server_host )
+                  shift
+                  PROXY_SERVER_HOST=$1
+      ;;
+    --proxy_server_port )
+                  shift
+                  PROXY_SERVER_PORT=$1
+      ;;
     * )           echo $USAGE
                   exit 1
 esac
@@ -464,6 +515,10 @@ mkdir -p "$DEPS_DIR"
 # Must execute from the directory containing this script
 cd "$(dirname "$0")"
 
+if [ -n "$PROXY_SERVER_HOST" ]; then
+    export https_proxy=http://$PROXY_SERVER_HOST:$PROXY_SERVER_PORT
+    export http_proxy=http://$PROXY_SERVER_HOST:$PROXY_SERVER_PORT
+fi
 setup_fmt
 setup_googletest
 setup_zstd