Added libwebsockets bundling code to netdata-installer.sh (#8144)

* Generalize handling of fetch and verification of archives.

This generalizes the logic used for fetching and verifying source
archives for external dependencies that we potentially bundle as part of
our regular build.

It also slightly improves the error handling for the bundling of
libmosquitto.

* Add code to bundle libwebsockets during install.

This gets used when building on a system without libwebsockets3.

Due to how the libwebsockets build system works, this adds cmake as an
installer dependency on systems that do not have libwebsockets3.

* Add libwebsockets-dev to install-required-packages.sh

* Fix error caused by resolving merge conflict incorrectly.

* Unconditionally bunlde libwebsockets if cloud is enabled on install.

As discussed with the product team, we're taking this approach to ensure
SOCKS5 proxy support.

1 files changed, 14 insertions, 0 deletions

diff --git a/packaging/installer/install-required-packages.sh b/packaging/installer/install-required-packages.sh
index b562f9ebed..6876bd2f57 100755
--- a/packaging/installer/install-required-packages.sh
+++ b/packaging/installer/install-required-packages.sh
@@ -591,6 +591,12 @@ declare -A pkg_automake=(
   ['default']="automake"
 )
 
+# Required to build libwebsockets and libmosquitto on some systems.
+declare -A pkg_cmake=(
+  ['clearlinux']="c-basic"
+  ['default']="cmake"
+)
+
 declare -A pkg_bridge_utils=(
   ['gentoo']="net-misc/bridge-utils"
   ['clearlinux']="network-basic"
@@ -703,6 +709,12 @@ declare -A pkg_libmnl_dev=(
   ['default']=""
 )
 
+declare -A pkg_libwebsockets_dev=(
+  ['debian']="libwebsockets-dev"
+  ['ubuntu']="libwebsockets-dev"
+  ['default']="libwebsockets-devel"
+)
+
 declare -A pkg_lm_sensors=(
   ['alpine']="lm_sensors"
   ['arch']="lm_sensors"
@@ -1104,6 +1116,7 @@ packages() {
   require_cmd autogen || suitable_package autogen
   require_cmd automake || suitable_package automake
   require_cmd pkg-config || suitable_package pkg-config
+  require_cmd cmake || suitable_package cmake
 
   # -------------------------------------------------------------------------
   # debugging tools for development
@@ -1157,6 +1170,7 @@ packages() {
     suitable_package libz-dev
     suitable_package libuuid-dev
     suitable_package libmnl-dev
+    suitable_package libwebsockets-dev
   fi
 
   # -------------------------------------------------------------------------