prosody
6ac5ad578565
util/argparse.lua

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util/argparse.lua @ 13265:6ac5ad578565

mod_cron: Load last task run time inside task runner to fix async This ensures that all interactions with storage happen inside an async thread, allowing async waiting to be performed in storage drivers.
author Kim Alvefur <zash@zash.se>
date Sat, 14 Oct 2023 22:32:33 +0200
parent 13160:4ee9a912ceea
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rev   line source
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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 local array_params = config and config.array_params or {};
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5
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6 local parsed_opts = {};
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7
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8 if #arg == 0 then
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9 return parsed_opts;
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10 end
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11 while true do
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12 local raw_param = arg[1];
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13 if not raw_param then
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14 break;
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15 end
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16
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17 local prefix = raw_param:match("^%-%-?");
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18 if not prefix then
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19 break;
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20 elseif prefix == "--" and raw_param == "--" then
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21 table.remove(arg, 1);
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22 break;
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23 end
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24 local param = table.remove(arg, 1):sub(#prefix+1);
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25 if #param == 1 and short_params then
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26 param = short_params[param];
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27 end
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28
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29 if not param then
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30 return nil, "param-not-found", raw_param;
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31 end
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32
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33 local param_k, param_v;
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34 if value_params[param] or array_params[param] then
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35 param_k, param_v = param, table.remove(arg, 1);
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36 if not param_v then
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37 return nil, "missing-value", raw_param;
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38 end
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39 else
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40 param_k, param_v = param:match("^([^=]+)=(.+)$");
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41 if not param_k then
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42 if param:match("^no%-") then
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43 param_k, param_v = param:sub(4), false;
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44 else
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45 param_k, param_v = param, true;
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46 end
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47 end
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48 param_k = param_k:gsub("%-", "_");
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49 end
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50 if array_params[param] then
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51 if parsed_opts[param_k] then
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52 table.insert(parsed_opts[param_k], param_v);
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53 else
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54 parsed_opts[param_k] = { param_v };
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55 end
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56 else
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57 parsed_opts[param_k] = param_v;
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58 end
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59 end
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60 for i = 1, #arg do
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61 parsed_opts[i] = arg[i];
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62 end
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63 return parsed_opts;
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64 end
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65
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66 return {
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67 parse = parse;
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68 }