zen hub (#574)

Initial implementation of zenserver "hub" mode. This is an experimental feature.

zenserver can be started in hub mode by specifying `hub` as the first argument to zenserver

1 files changed, 51 insertions, 10 deletions

diff --git a/src/zenserver/xmake.lua b/src/zenserver/xmake.lua
index fb65fa949..6ee80dc62 100644
--- a/src/zenserver/xmake.lua
+++ b/src/zenserver/xmake.lua
@@ -22,6 +22,7 @@ target("zenserver")
     add_deps("sol2")
     add_packages("json11")
     add_packages("lua")
+    add_packages("consul")
 
     if has_config("zenmimalloc") then
         add_packages("mimalloc")
@@ -55,10 +56,7 @@ target("zenserver")
         add_ldflags("-framework Security")
         add_ldflags("-framework SystemConfiguration")
     end
-
-    add_options("compute")
-    add_options("exec")
-    
+   
     -- to work around some unfortunate Ctrl-C behaviour on Linux/Mac due to 
     -- our use of setsid() at startup we pass in `--no-detach` to zenserver
     -- ensure that it recieves signals when the user requests termination
@@ -87,17 +85,60 @@ target("zenserver")
         end
     end)
 
+
     after_build(function (target)
-        if has_config("zensentry") then
-            local crashpad_handler = "crashpad_handler"
-            if is_plat("windows") then
-                crashpad_handler = "crashpad_handler.exe"
+        local function copy_if_newer(src_file, dst_file, file_description)
+            if not os.exists(src_file) then
+                print("Source file '" .. src_file .. "' does not exist, cannot copy " .. file_description)
+                return
             end
+            local should_copy = false
+            if not os.exists(dst_file) then
+                should_copy = true
+            else
+                local src_size = os.filesize(src_file)
+                local dst_size = os.filesize(dst_file)
+                local src_mtime = os.mtime(src_file)
+                local dst_mtime = os.mtime(dst_file)
+                
+                if src_size ~= dst_size or src_mtime > dst_mtime then
+                    should_copy = true
+                end
+            end
+            
+            if should_copy then
+                os.cp(src_file, dst_file)
+                print("Copied '" .. file_description .. "' to output directory")
+            end
+        end
+
+        if has_config("zensentry") then
             local pkg = target:pkg("sentry-native")
             if pkg then
                 local installdir = pkg:installdir()
-                os.cp(path.join(installdir, "bin/" .. crashpad_handler), target:targetdir())
-                print("Copied " .. crashpad_handler .. " to output directory")
+
+                local crashpad_handler = "crashpad_handler"
+                if is_plat("windows") then
+                    crashpad_handler = "crashpad_handler.exe"
+                end
+
+                local crashpad_handler_path = path.join(installdir, "bin/" .. crashpad_handler)
+                copy_if_newer(crashpad_handler_path, path.join(target:targetdir(), crashpad_handler), crashpad_handler)
+
+                if is_plat("windows") then
+                    local crashpad_wer_path = path.join(installdir, "bin/crashpad_wer.dll")
+                    copy_if_newer(crashpad_wer_path, path.join(target:targetdir(), "crashpad_wer.dll"), "crashpad_wer.dll")
+                end
+            end
+        end
+
+        local consul_pkg = target:pkg("consul")
+        if consul_pkg then
+            local installdir = consul_pkg:installdir()
+            local consul_bin = "consul"
+            if is_plat("windows") then
+                consul_bin = "consul.exe"
             end
+            copy_if_newer(path.join(installdir, "bin", consul_bin), path.join(target:targetdir(), consul_bin), consul_bin)
         end
     end)