CircleCI: Check for missing Bindings dependencies

This commit fails the CircleCI tests on purpose, so that we know that the check works.

circle.yml

@@ -8,5 +8,5 @@ dependencies:
 
 test:
  override:
-  - cd src && find . -name \*.cpp -or -name \*.h > AllFiles.lst
-  - cd src && lua CheckBasicStyle.lua
+  - cd src && find . -name \*.cpp -or -name \*.h > AllFiles.lst && lua CheckBasicStyle.lua
+  - cd src/Bindings && lua CheckBindingsDependencies.lua

src/Bindings/CheckBindingsDependencies.lua

@@ -0,0 +1,108 @@
+-- CheckBindingsDependencies.lua
+
+-- This script checks whether all files listed in AllToLua.pkg are also in the dependencies for bindings regeneration.
+-- This script is run as part of the CircleCI tests
+
+
+
+
+
+--- Filenames that should be ignored in the AllToLua.pkg file:
+-- Dictionary of "filename" -> true for each ignored filename
+local g_ShouldIgnorePkg =
+{
+	-- ["../IniFile.h"] = true,
+}
+
+--- Filenames that should be ignored in the CMakeLists.txt file:
+-- Dictionary of "filename" -> true for each ignored filename
+local g_ShouldIgnoreCMake =
+{
+	["tolua"] = true,
+	["../Bindings/AllToLua.pkg"] = true,
+	["../Bindings/BindingsProcessor.lua"] = true,
+}
+
+
+
+
+
+--- Returns a sorted list of all files listed in AllToLua.pkg
+-- The returned table has both an array part (list of files) and a dictionary part ("filename" -> true)
+local function getAllToLuaPkgFiles()
+	local res = {}
+	for line in io.lines("AllToLua.pkg") do
+		line:gsub("$cfile \"(.+)\"",  -- Parse each line with a $cfile directive
+			function (a_FileName)
+				if (g_ShouldIgnorePkg[a_FileName]) then
+					return
+				end
+				a_FileName = a_FileName:gsub("../Bindings/", "")  -- Normalize the path
+				table.insert(res, a_FileName)
+				res[a_FileName] = true
+			end
+		)
+	end
+	table.sort(res)
+	return res
+end
+
+
+
+
+
+--- Returns a sorted list of all files listed as dependencies in CMakeLists.txt
+-- The returned table has both an array part (list of files) and a dictionary part ("filename" -> true)
+local function getCMakeListsFiles()
+	local f = assert(io.open("CMakeLists.txt", "r"))
+	local contents = f:read("*all")
+	f:close()
+	local res = {}
+	contents:gsub("set%s*(%b())",  -- Process each CMake's "set" statement
+		function (a_SetStatement)
+			if not(a_SetStatement:find("%(BINDING_DEPENDENCIES")) then
+				return
+			end
+			-- This is the statement setting the dependencies, parse the files:
+			a_SetStatement:gsub("%s(%S+)%s",
+				function (a_FileName)
+					if (g_ShouldIgnoreCMake[a_FileName]) then
+						return
+					end
+					a_FileName = a_FileName:gsub("../Bindings/", "")  -- Normalize the path
+					table.insert(res, a_FileName)
+					res[a_FileName] = true
+				end
+			)
+		end
+	)
+	table.sort(res)
+	return res
+end
+
+
+
+
+
+-- Check each set of files against the other:
+local pkgFiles = getAllToLuaPkgFiles()
+local cmakeFiles = getCMakeListsFiles()
+local numMissingFiles = 0
+for _, fnam in ipairs(pkgFiles) do
+	if not(cmakeFiles[fnam]) then
+		io.stderr:write("Bindings dependency file ", fnam, " is not listed in src/Bindings/CMakeLists.txt\n")
+		numMissingFiles = numMissingFiles + 1
+	end
+end
+for _, fnam in ipairs(cmakeFiles) do
+	if not(pkgFiles[fnam]) then
+		io.stderr:write("Bindings dependency file ", fnam, " is not listed in src/Bindings/AllToLua.pkg\n")
+		numMissingFiles = numMissingFiles + 1
+	end
+end
+
+-- If any mismatch was found, exit with an error code:
+if (numMissingFiles > 0) then
+	io.stderr:write("Bindings dependency mismatches found: ", numMissingFiles, "\n")
+	os.exit(1)
+end