Mercurial > prosody-modules

annotate mod_discodot/mod_discodot.lua @ 4976:75b6e5df65f9

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various: Improve error reporting if missing file server module on 0.12 If there is some error loading net.http.files then it would be swallowed by the pcall and then it would proceed to trying mod_http_files, which might cause unexpected behavior on 0.12 Ref #1765
author Kim Alvefur <zash@zash.se>
date Mon, 18 Jul 2022 22:47:54 +0200
parents 253df0798996
children
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4577
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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1 local cm = require("core.configmanager");
253df0798996 mod_discodot: Print a graph of service discovery
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2
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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3 local function format_host(host, conf)
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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4 if host == "*" then
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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5 return "Global"
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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6 end
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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7 local component_module = conf["component_module"];
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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8 if type(component_module) == "string" then
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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9 if component_module == "component" then
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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10 return string.format("Component %q", host)
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11 else
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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12 return string.format("Component %q %q", host, component_module)
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13 end
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Kim Alvefur <zash@zash.se>
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14 else
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Kim Alvefur <zash@zash.se>
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15 return string.format("VirtualHost %q", host)
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16 end
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Kim Alvefur <zash@zash.se>
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17 end
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Kim Alvefur <zash@zash.se>
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18
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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19 function module.command(arg)
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20
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Kim Alvefur <zash@zash.se>
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21 local config = cm.getconfig();
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Kim Alvefur <zash@zash.se>
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22
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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23 print("digraph \"prosody\" {")
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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24 for host, conf in pairs(config) do
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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25 print(string.format("%q [label=%q]", host, format_host(host, conf)));
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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26 local parent = host:match("%.(.*)");
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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27 if parent and rawget(config, parent) then
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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28 print(string.format("%q -> %q", parent, host));
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Kim Alvefur <zash@zash.se>
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29 end
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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30 local disco_items = conf["disco_items"]
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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31 if type(disco_items) == "table" then
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Kim Alvefur <zash@zash.se>
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32 for _, pair in ipairs(disco_items) do
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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33 print(string.format("%q -> %q", host, pair[1]));
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Kim Alvefur <zash@zash.se>
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34 end
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Kim Alvefur <zash@zash.se>
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35 end
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Kim Alvefur <zash@zash.se>
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36
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Kim Alvefur <zash@zash.se>
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37 end
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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38
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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39 print("}")
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Kim Alvefur <zash@zash.se>
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40
253df0798996 mod_discodot: Print a graph of service discovery
Kim Alvefur <zash@zash.se>
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41 return 0
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Kim Alvefur <zash@zash.se>
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42 end