Mercurial > repo
annotate share/lua/5.2/luarocks/fetch.lua @ 4799:c929c11c7ea2
<oerjan> sed -i \'s/\xc2\xb0/\xc2\xb0\xe2\x80\x8b/\' wisdom/\'misspellings of croissant\'
author | HackBot |
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date | Wed, 10 Sep 2014 12:05:08 +0000 |
parents | d137f631bad5 |
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rev | line source |
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1132
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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1 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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2 --- Functions related to fetching and loading local and remote files. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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3 module("luarocks.fetch", package.seeall) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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4 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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5 local fs = require("luarocks.fs") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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6 local dir = require("luarocks.dir") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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7 local type_check = require("luarocks.type_check") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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8 local path = require("luarocks.path") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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9 local deps = require("luarocks.deps") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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10 local persist = require("luarocks.persist") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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11 local util = require("luarocks.util") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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12 local cfg = require("luarocks.cfg") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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13 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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14 --- Fetch a local or remote file. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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15 -- Make a remote or local URL/pathname local, fetching the file if necessary. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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16 -- Other "fetch" and "load" functions use this function to obtain files. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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17 -- If a local pathname is given, it is returned as a result. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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18 -- @param url string: a local pathname or a remote URL. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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19 -- @param filename string or nil: this function attempts to detect the |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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20 -- resulting local filename of the remote file as the basename of the URL; |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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21 -- if that is not correct (due to a redirection, for example), the local |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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22 -- filename can be given explicitly as this second argument. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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23 -- @return string or (nil, string, [string]): the absolute local pathname for the |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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24 -- fetched file, or nil and a message in case of errors, followed by |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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25 -- an optional error code. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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26 function fetch_url(url, filename) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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27 assert(type(url) == "string") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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28 assert(type(filename) == "string" or not filename) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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29 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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30 local protocol, pathname = dir.split_url(url) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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31 if protocol == "file" then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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32 return fs.absolute_name(pathname) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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33 elseif protocol == "http" or protocol == "ftp" or protocol == "https" then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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34 local ok, err = fs.download(url, filename) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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35 if not ok then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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36 return nil, "Failed downloading "..url..(err and " - "..err or ""), "network" |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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37 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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38 return dir.path(fs.current_dir(), filename or dir.base_name(url)) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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39 else |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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40 return nil, "Unsupported protocol "..protocol |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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41 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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42 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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43 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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44 --- For remote URLs, create a temporary directory and download URL inside it. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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45 -- This temporary directory will be deleted on program termination. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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46 -- For local URLs, just return the local pathname and its directory. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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47 -- @param url string: URL to be downloaded |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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48 -- @param tmpname string: name pattern to use for avoiding conflicts |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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49 -- when creating temporary directory. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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50 -- @param filename string or nil: local filename of URL to be downloaded, |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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51 -- in case it can't be inferred from the URL. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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52 -- @return (string, string) or (nil, string, [string]): absolute local pathname of |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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53 -- the fetched file and temporary directory name; or nil and an error message |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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54 -- followed by an optional error code |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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55 function fetch_url_at_temp_dir(url, tmpname, filename) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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56 assert(type(url) == "string") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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57 assert(type(tmpname) == "string") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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58 assert(type(filename) == "string" or not filename) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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59 filename = filename or dir.base_name(url) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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60 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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61 local protocol, pathname = dir.split_url(url) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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62 if protocol == "file" then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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63 if fs.exists(pathname) then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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64 return pathname, dir.dir_name(fs.absolute_name(pathname)) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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65 else |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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66 return nil, "File not found: "..pathname |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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67 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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68 else |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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69 local temp_dir = fs.make_temp_dir(tmpname) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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70 if not temp_dir then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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71 return nil, "Failed creating temporary directory." |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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72 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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73 util.schedule_function(fs.delete, temp_dir) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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74 fs.change_dir(temp_dir) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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75 local file, err, errcode = fetch_url(url, filename) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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76 fs.pop_dir() |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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77 if not file then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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78 return nil, "Error fetching file: "..err, errcode |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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79 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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80 return file, temp_dir |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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81 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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82 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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83 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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84 --- Obtain a rock and unpack it. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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85 -- If a directory is not given, a temporary directory will be created, |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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86 -- which will be deleted on program termination. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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87 -- @param rock_file string: URL or filename of the rock. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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88 -- @param dest string or nil: if given, directory will be used as |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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89 -- a permanent destination. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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90 -- @return string or (nil, string, [string]): the directory containing the contents |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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91 -- of the unpacked rock. |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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92 function fetch_and_unpack_rock(rock_file, dest) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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93 assert(type(rock_file) == "string") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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94 assert(type(dest) == "string" or not dest) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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95 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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96 local name = dir.base_name(rock_file):match("(.*)%.[^.]*%.rock") |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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97 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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98 local rock_file, err, errcode = fetch_url_at_temp_dir(rock_file,"luarocks-rock-"..name) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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99 if not rock_file then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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100 return nil, "Could not fetch rock file: " .. err, errcode |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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101 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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102 |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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103 rock_file = fs.absolute_name(rock_file) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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104 local unpack_dir |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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105 if dest then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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106 unpack_dir = dest |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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107 fs.make_dir(unpack_dir) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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108 else |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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109 unpack_dir = fs.make_temp_dir(name) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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110 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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111 if not dest then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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112 util.schedule_function(fs.delete, unpack_dir) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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113 end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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114 fs.change_dir(unpack_dir) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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115 local ok = fs.unzip(rock_file) |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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116 if not ok then |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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117 return nil, "Failed unpacking rock file: " .. rock_file |
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118 end |
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119 fs.pop_dir() |
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120 return unpack_dir |
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121 end |
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122 |
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123 --- Back-end function that actually loads the local rockspec. |
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124 -- Performs some validation and postprocessing of the rockspec contents. |
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125 -- @param filename string: The local filename of the rockspec file. |
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126 -- @return table or (nil, string): A table representing the rockspec |
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127 -- or nil followed by an error message. |
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128 function load_local_rockspec(filename) |
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129 assert(type(filename) == "string") |
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130 filename = fs.absolute_name(filename) |
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131 local rockspec, err = persist.load_into_table(filename) |
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132 if not rockspec then |
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133 return nil, "Could not load rockspec file "..filename.." ("..err..")" |
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134 end |
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135 |
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136 local ok, err = type_check.type_check_rockspec(rockspec) |
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137 if not ok then |
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138 return nil, filename..": "..err |
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139 end |
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140 |
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141 if rockspec.rockspec_format then |
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142 if deps.compare_versions(rockspec.rockspec_format, type_check.rockspec_format) then |
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143 return nil, "Rockspec format "..rockspec.rockspec_format.." is not supported, please upgrade LuaRocks." |
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144 end |
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145 end |
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146 |
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147 util.platform_overrides(rockspec.build) |
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148 util.platform_overrides(rockspec.dependencies) |
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149 util.platform_overrides(rockspec.external_dependencies) |
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150 util.platform_overrides(rockspec.source) |
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151 util.platform_overrides(rockspec.hooks) |
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152 |
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153 local basename = dir.base_name(filename) |
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154 if basename == "rockspec" then |
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155 rockspec.name = rockspec.package:lower() |
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156 else |
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157 rockspec.name = basename:match("(.*)-[^-]*-[0-9]*") |
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158 if not rockspec.name then |
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159 return nil, "Expected filename in format 'name-version-revision.rockspec'." |
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160 end |
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161 end |
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162 |
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163 local protocol, pathname = dir.split_url(rockspec.source.url) |
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164 if protocol == "http" or protocol == "https" or protocol == "ftp" or protocol == "file" then |
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165 rockspec.source.file = rockspec.source.file or dir.base_name(rockspec.source.url) |
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166 end |
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167 rockspec.source.protocol, rockspec.source.pathname = protocol, pathname |
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168 |
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169 -- Temporary compatibility |
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170 if rockspec.source.cvs_module then rockspec.source.module = rockspec.source.cvs_module end |
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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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171 if rockspec.source.cvs_tag then rockspec.source.tag = rockspec.source.cvs_tag end |
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172 |
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173 local name_version = rockspec.package:lower() .. "-" .. rockspec.version |
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174 if basename ~= "rockspec" and basename ~= name_version .. ".rockspec" then |
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175 return nil, "Inconsistency between rockspec filename ("..basename..") and its contents ("..name_version..".rockspec)." |
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176 end |
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177 |
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178 rockspec.local_filename = filename |
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179 local filebase = rockspec.source.file or rockspec.source.url |
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180 local base = dir.base_name(filebase) |
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181 base = base:gsub("%.[^.]*$", ""):gsub("%.tar$", "") |
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182 rockspec.source.dir = rockspec.source.dir |
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183 or rockspec.source.module |
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184 or ((filebase:match(".lua$") or filebase:match(".c$")) and ".") |
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185 or base |
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186 if rockspec.dependencies then |
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187 for i = 1, #rockspec.dependencies do |
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188 local parsed = deps.parse_dep(rockspec.dependencies[i]) |
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189 if not parsed then |
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190 return nil, "Parse error processing dependency '"..rockspec.dependencies[i].."'" |
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191 end |
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192 rockspec.dependencies[i] = parsed |
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193 end |
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194 else |
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195 rockspec.dependencies = {} |
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196 end |
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197 local ok, err = path.configure_paths(rockspec) |
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198 if err then |
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199 return nil, "Error verifying paths: "..err |
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200 end |
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201 |
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202 return rockspec |
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203 end |
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204 |
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205 --- Load a local or remote rockspec into a table. |
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206 -- This is the entry point for the LuaRocks tools. |
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207 -- Only the LuaRocks runtime loader should use |
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208 -- load_local_rockspec directly. |
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209 -- @param filename string: Local or remote filename of a rockspec. |
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210 -- @param location string or nil: Where to download. If not given, |
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211 -- a temporary dir is created. |
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212 -- @return table or (nil, string, [string]): A table representing the rockspec |
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213 -- or nil followed by an error message and optional error code. |
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214 function load_rockspec(filename, location) |
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215 assert(type(filename) == "string") |
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216 |
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217 local name |
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218 local basename = dir.base_name(filename) |
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219 if basename == "rockspec" then |
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220 name = "rockspec" |
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221 else |
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222 name = basename:match("(.*)%.rockspec") |
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223 if not name and not basename == "rockspec" then |
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224 return nil, "Filename '"..filename.."' does not look like a rockspec." |
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225 end |
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226 end |
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227 |
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228 local err, errcode |
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229 if location then |
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230 fs.change_dir(location) |
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231 filename, err = fetch_url(filename) |
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232 fs.pop_dir() |
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233 else |
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234 filename, err, errcode = fetch_url_at_temp_dir(filename,"luarocks-rockspec-"..name) |
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235 end |
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236 if not filename then |
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237 return nil, err, errcode |
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238 end |
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239 |
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240 return load_local_rockspec(filename) |
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241 end |
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242 |
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243 --- Download sources for building a rock using the basic URL downloader. |
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244 -- @param rockspec table: The rockspec table |
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245 -- @param extract boolean: Whether to extract the sources from |
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246 -- the fetched source tarball or not. |
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247 -- @param dest_dir string or nil: If set, will extract to the given directory. |
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248 -- @return (string, string) or (nil, string, [string]): The absolute pathname of |
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249 -- the fetched source tarball and the temporary directory created to |
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250 -- store it; or nil and an error message and optional error code. |
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251 function get_sources(rockspec, extract, dest_dir) |
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252 assert(type(rockspec) == "table") |
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253 assert(type(extract) == "boolean") |
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254 assert(type(dest_dir) == "string" or not dest_dir) |
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255 |
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256 local url = rockspec.source.url |
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257 local name = rockspec.name.."-"..rockspec.version |
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258 local filename = rockspec.source.file |
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259 local source_file, store_dir, err, errcode |
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260 if dest_dir then |
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261 fs.change_dir(dest_dir) |
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262 source_file, err, errcode = fetch_url(url, filename) |
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263 fs.pop_dir() |
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264 store_dir = dest_dir |
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265 else |
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266 source_file, store_dir, errcode = fetch_url_at_temp_dir(url, "luarocks-source-"..name, filename) |
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267 end |
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268 if not source_file then |
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269 return nil, err or store_dir, errcode |
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270 end |
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271 if rockspec.source.md5 then |
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272 if not fs.check_md5(source_file, rockspec.source.md5) then |
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273 return nil, "MD5 check for "..filename.." has failed." |
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274 end |
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275 end |
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276 if extract then |
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277 fs.change_dir(store_dir) |
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278 fs.unpack_archive(rockspec.source.file) |
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279 if not fs.exists(rockspec.source.dir) then |
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280 return nil, "Directory "..rockspec.source.dir.." not found inside archive "..rockspec.source.file |
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281 end |
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282 fs.pop_dir() |
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283 end |
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284 return source_file, store_dir |
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285 end |
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286 |
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287 --- Download sources for building a rock, calling the appropriate protocol method. |
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288 -- @param rockspec table: The rockspec table |
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289 -- @param extract boolean: When downloading compressed formats, whether to extract |
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290 -- the sources from the fetched archive or not. |
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291 -- @param dest_dir string or nil: If set, will extract to the given directory. |
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292 -- @return (string, string) or (nil, string): The absolute pathname of |
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293 -- the fetched source tarball and the temporary directory created to |
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294 -- store it; or nil and an error message. |
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295 function fetch_sources(rockspec, extract, dest_dir) |
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296 assert(type(rockspec) == "table") |
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297 assert(type(extract) == "boolean") |
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298 assert(type(dest_dir) == "string" or not dest_dir) |
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299 |
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300 local protocol = rockspec.source.protocol |
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301 local ok, proto |
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302 if protocol == "http" or protocol == "https" or protocol == "ftp" or protocol == "file" then |
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303 proto = require("luarocks.fetch") |
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304 else |
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305 ok, proto = pcall(require, "luarocks.fetch."..protocol:gsub("[+-]", "_")) |
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306 if not ok then |
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307 return nil, "Unknown protocol "..protocol |
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308 end |
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309 end |
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310 |
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311 if cfg.only_sources_from |
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312 and rockspec.source.pathname |
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313 and #rockspec.source.pathname > 0 then |
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314 if #cfg.only_sources_from == 0 then |
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315 return nil, "Can't download "..rockspec.source.url.." -- download from remote servers disabled" |
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316 elseif rockspec.source.pathname:find(cfg.only_sources_from, 1, true) ~= 1 then |
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317 return nil, "Can't download "..rockspec.source.url.." -- only downloading from "..cfg.only_sources_from |
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318 end |
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319 end |
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320 return proto.get_sources(rockspec, extract, dest_dir) |
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321 end |