prosody
a9dbf657c894
util/argparse.lua

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util/argparse.lua @ 12580:a9dbf657c894 0.12

util.datamapper: Improve handling of schemas with non-obvious "type" The JSON Schema specification says that schemas are objects or booleans, and that the 'type' property is optional and can be an array. This module previously allowed bare type names as schemas and did not really handle booleans. It now handles missing 'type' properties and boolean 'true' as a schema. Objects and arrays are guessed based on the presence of 'properties' or 'items' field.
author Kim Alvefur <zash@zash.se>
date Fri, 08 Jul 2022 17:32:48 +0200
parent 12477:cc84682b8429
child 13058:766152afc1c9
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1196f1e8d178 util.startup: Break out command line argument parsing into util.argparse
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1 local function parse(arg, config)
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2 local short_params = config and config.short_params or {};
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3 local value_params = config and config.value_params or {};
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4
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5 local parsed_opts = {};
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6
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7 if #arg == 0 then
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8 return parsed_opts;
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9 end
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10 while true do
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11 local raw_param = arg[1];
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12 if not raw_param then
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13 break;
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14 end
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15
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16 local prefix = raw_param:match("^%-%-?");
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17 if not prefix then
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18 break;
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19 elseif prefix == "--" and raw_param == "--" then
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20 table.remove(arg, 1);
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21 break;
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22 end
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23 local param = table.remove(arg, 1):sub(#prefix+1);
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24 if #param == 1 and short_params then
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25 param = short_params[param];
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26 end
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27
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28 if not param then
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29 return nil, "param-not-found", raw_param;
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30 end
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31
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32 local param_k, param_v;
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33 if value_params[param] then
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34 param_k, param_v = param, table.remove(arg, 1);
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35 if not param_v then
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36 return nil, "missing-value", raw_param;
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37 end
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38 else
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39 param_k, param_v = param:match("^([^=]+)=(.+)$");
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40 if not param_k then
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41 if param:match("^no%-") then
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42 param_k, param_v = param:sub(4), false;
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43 else
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44 param_k, param_v = param, true;
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45 end
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46 end
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47 end
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48 parsed_opts[param_k] = param_v;
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49 end
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50 for i = 1, #arg do
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51 parsed_opts[i] = arg[i];
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52 end
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53 return parsed_opts;
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54 end
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55
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56 return {
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57 parse = parse;
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58 }