annotate mod_storage_xmlarchive/datamanager_append_raw.lib.lua @ 4249:64aa1d9d70ac

mod_rest: Catch and log errors in callback promise chain From the code it looks like it should be possible to reply to an error stanza, but it did not. Turns out I was saved by my local developer mode module which throws errors if an attempt is made to create an errror reply to an error stanza. However nothing collects this error from the promise, so all I got was confusion.
author Kim Alvefur <zash@zash.se>
date Sun, 15 Nov 2020 16:25:49 +0100
parents f4ab0966ba89
children
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aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
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1 local io_open = io.open;
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2 local dm = require "core.storagemanager".olddm;
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3
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4 -- Append a blob of data to a file
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f4ab0966ba89 mod_storage_xmlarchive: Fix name in datamanager monkeypatch (fixes #774)
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5 function dm.append_raw(username, host, datastore, ext, data)
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6 if type(data) ~= "string" then return; end
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7 local filename = dm.getpath(username, host, datastore, ext, true);
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8
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9 local ok;
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10 local f, msg = io_open(filename, "r+");
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11 if not f then
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12 -- File did probably not exist, let's create it
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13 f, msg = io_open(filename, "w");
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14 if not f then
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15 return nil, msg, "open";
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16 end
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17 end
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19 local pos = f:seek("end");
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20
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21 ok, msg = f:write(data);
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22 if not ok then
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23 f:close();
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24 return ok, msg, "write";
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25 end
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27 ok, msg = f:close();
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28 if not ok then
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29 return ok, msg;
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30 end
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32 return true, pos;
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33 end
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34