From ed0cef77181841ce3063dccbb79f13ee85a14cae Mon Sep 17 00:00:00 2001
From: Matthew Wild <mwild1@gmail.com>
Date: Fri, 9 Jul 2010 01:09:57 +0100
Subject: prosodyctl: Warn and exit if any log files are not writeable, fixes
 #94

---
 prosodyctl | 41 ++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 40 insertions(+), 1 deletion(-)

diff --git a/prosodyctl b/prosodyctl
index b2cb43f4..9bb8d4ad 100755
--- a/prosodyctl
+++ b/prosodyctl
@@ -64,7 +64,7 @@ do
 		os.exit(1);
 	end
 end
-
+local original_logging_config = config.get("*", "core", "log");
 config.set("*", "core", "log", { { levels = { min="info" }, to = "console" } });
 
 require "core.loggingmanager"
@@ -111,6 +111,45 @@ else
 	print(tostring(pposix))
 end
 
+local function test_writeable(filename)
+	local f, err = io.open(filename, "a");
+	if not f then
+		return false, err;
+	end
+	f:close();
+	return true;
+end
+
+local unwriteable_files = {};
+if type(original_logging_config) == "string" and original_logging_config:sub(1,1) ~= "*" then
+	local ok, err = test_writeable(original_logging_config);
+	if not ok then
+		table.insert(unwriteable_files, err);
+	end
+elseif type(original_logging_config) == "table" then
+	for _, rule in ipairs(original_logging_config) do
+		if rule.filename then
+			local ok, err = test_writeable(rule.filename);
+			if not ok then
+				table.insert(unwriteable_files, err);
+			end
+		end
+	end
+end
+
+if #unwriteable_files > 0 then
+	print("One of more of the Prosody log files are not");
+	print("writeable, please correct the errors and try");
+	print("starting prosodyctl again.");
+	print("");
+	for _, err in ipairs(unwriteable_files) do
+		print(err);
+	end
+	print("");
+	os.exit(1);
+end
+
+
 local error_messages = setmetatable({ 
 		["invalid-username"] = "The given username is invalid in a Jabber ID";
 		["invalid-hostname"] = "The given hostname is invalid";
-- 
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