prosody
b30455212f89
util/paths.lua

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util/paths.lua @ 9539:b30455212f89

util.pubsub: Clarify comment about return value
author Kim Alvefur <zash@zash.se>
date Sun, 21 Oct 2018 22:21:18 +0200
parent 6505:2dc8dbd0940e
child 10197:91085371cfc5
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rev   line source
6505
2dc8dbd0940e util.paths: Add function for joining path segments
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1 local t_concat = table.concat;
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2
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3 local path_sep = package.config:sub(1,1);
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4
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5 local path_util = {}
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6
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7 -- Helper function to resolve relative paths (needed by config)
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8 function path_util.resolve_relative_path(parent_path, path)
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9 if path then
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10 -- Some normalization
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11 parent_path = parent_path:gsub("%"..path_sep.."+$", "");
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12 path = path:gsub("^%.%"..path_sep.."+", "");
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13
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14 local is_relative;
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15 if path_sep == "/" and path:sub(1,1) ~= "/" then
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16 is_relative = true;
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17 elseif path_sep == "\\" and (path:sub(1,1) ~= "/" and (path:sub(2,3) ~= ":\\" and path:sub(2,3) ~= ":/")) then
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18 is_relative = true;
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19 end
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20 if is_relative then
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21 return parent_path..path_sep..path;
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22 end
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23 end
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24 return path;
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25 end
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26
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27 -- Helper function to convert a glob to a Lua pattern
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28 function path_util.glob_to_pattern(glob)
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29 return "^"..glob:gsub("[%p*?]", function (c)
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30 if c == "*" then
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31 return ".*";
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32 elseif c == "?" then
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33 return ".";
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34 else
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35 return "%"..c;
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36 end
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37 end).."$";
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38 end
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39
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40 function path_util.join(...)
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41 return t_concat({...}, path_sep);
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42 end
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43
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44 return path_util;