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annotate share/lua/5.2/luarocks/unpack.lua @ 8065:591b1467ccdf

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<int-e> le/rn paste/"Paste" is a short story by Henry James. Its contents has been cut into pieces and distributed over numerous tin boxes on the World Wide Web, little pearls of wisdom buried among ordinary pastes.
author HackBot
date Sun, 15 May 2016 13:14:57 +0000
parents d137f631bad5
children
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1132
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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1
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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2 --- Module implementing the LuaRocks "unpack" command.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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3 -- Unpack the contents of a rock.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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4 module("luarocks.unpack", package.seeall)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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5
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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6 local fetch = require("luarocks.fetch")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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7 local fs = require("luarocks.fs")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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8 local util = require("luarocks.util")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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9 local build = require("luarocks.build")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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10 local dir = require("luarocks.dir")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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11
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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12 help_summary = "Unpack the contents of a rock."
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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13 help_arguments = "{<rock>|<name> [<version>]}"
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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14 help = [[
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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15 Unpacks the contents of a rock in a newly created directory.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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16 Argument may be a rock file, or the name of a rock in a rocks server.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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17 In the latter case, the app version may be given as a second argument.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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18 ]]
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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19
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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20 --- Load a rockspec file to the given directory, fetches the source
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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21 -- files specified in the rockspec, and unpack them inside the directory.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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22 -- @param rockspec_file string: The URL for a rockspec file.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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23 -- @param dir_name string: The directory where to store and unpack files.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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24 -- @return table or (nil, string): the loaded rockspec table or
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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25 -- nil and an error message.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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26 local function unpack_rockspec(rockspec_file, dir_name)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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27 assert(type(rockspec_file) == "string")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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28 assert(type(dir_name) == "string")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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29
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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30 local rockspec, err = fetch.load_rockspec(rockspec_file)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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31 if not rockspec then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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32 return nil, "Failed loading rockspec "..rockspec_file..": "..err
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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33 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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34 fs.change_dir(dir_name)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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35 local ok, sources_dir = fetch.fetch_sources(rockspec, true, ".")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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36 if not ok then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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37 return nil, sources_dir
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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38 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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39 fs.change_dir(dir_name)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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40 build.apply_patches(rockspec)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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41 fs.pop_dir()
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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42 return rockspec
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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43 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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44
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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45 --- Load a .rock file to the given directory and unpack it inside it.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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46 -- @param rock_file string: The URL for a .rock file.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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47 -- @param dir_name string: The directory where to unpack.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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48 -- @param kind string: the kind of rock file, as in the second-level
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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49 -- extension in the rock filename (eg. "src", "all", "linux-x86")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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50 -- @return table or (nil, string): the loaded rockspec table or
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
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51 -- nil and an error message.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
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52 local function unpack_rock(rock_file, dir_name, kind)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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53 assert(type(rock_file) == "string")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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54 assert(type(dir_name) == "string")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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55
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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56 local ok, err, errcode = fetch.fetch_and_unpack_rock(rock_file, dir_name)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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57 if not ok then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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58 return nil, "Failed unzipping rock "..rock_file, errcode
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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59 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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60 fs.change_dir(dir_name)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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61 local rockspec_file = dir_name..".rockspec"
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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62 local rockspec, err = fetch.load_rockspec(rockspec_file)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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63 if not rockspec then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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64 return nil, "Failed loading rockspec "..rockspec_file..": "..err
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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65 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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66 if kind == "src" then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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67 if rockspec.source.file then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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68 local ok, err = fs.unpack_archive(rockspec.source.file)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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69 if not ok then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
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70 return nil, err
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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71 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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72 fs.change_dir(rockspec.source.dir)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
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73 build.apply_patches(rockspec)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
74 fs.pop_dir()
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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75 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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76 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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77 return rockspec
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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78 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
diff changeset
79
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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80 --- Create a directory and perform the necessary actions so that
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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81 -- the sources for the rock and its rockspec are unpacked inside it,
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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82 -- laid out properly so that the 'make' command is able to build the module.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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83 -- @param file string: A rockspec or .rock URL.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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84 -- @return boolean or (nil, string): true if successful or nil followed
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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85 -- by an error message.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
86 local function run_unpacker(file)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
87 assert(type(file) == "string")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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88
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
89 local base_name = dir.base_name(file)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
90 local dir_name, kind, extension = base_name:match("(.*)%.([^.]+)%.(rock)$")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
91 if not extension then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
92 dir_name, extension = base_name:match("(.*)%.(rockspec)$")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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93 kind = "rockspec"
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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94 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
95 if not extension then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
96 return nil, file.." does not seem to be a valid filename."
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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97 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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98
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
99 if (fs.exists(dir_name)) then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
100 return nil, "Directory "..dir_name.." already exists."
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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101 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
102 fs.make_dir(dir_name)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
103 local rollback = util.schedule_function(fs.delete, fs.absolute_name(dir_name))
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
104
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
105 local rockspec, err
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
106 if extension == "rock" then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
107 rockspec, err = unpack_rock(file, dir_name, kind)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
108 elseif extension == "rockspec" then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
109 rockspec, err = unpack_rockspec(file, dir_name)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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110 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
111 if not rockspec then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
112 return nil, err
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
113 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
114 if kind == "src" or kind == "rockspec" then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
115 if rockspec.source.dir ~= "." then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
116 local ok = fs.copy(rockspec.local_filename, rockspec.source.dir)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
117 if not ok then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
118 return nil, "Failed copying unpacked rockspec into unpacked source directory."
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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119 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
120 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
121 util.printout()
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
122 util.printout("Done. You may now enter directory ")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
123 util.printout(dir.path(dir_name, rockspec.source.dir))
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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124 util.printout("and type 'luarocks make' to build.")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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125 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
126 util.remove_scheduled_function(rollback)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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127 return true
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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parents:
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128 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
129
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
130 --- Driver function for the "unpack" command.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
diff changeset
131 -- @param name string: may be a rock filename, for unpacking a
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
HackBot
parents:
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132 -- rock file or the name of a rock to be fetched and unpacked.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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133 -- @param version string or nil: if the name of a package is given, a
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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134 -- version may also be passed.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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135 -- @return boolean or (nil, string): true if successful or nil followed
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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136 -- by an error message.
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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137 function run(...)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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138 local flags, name, version = util.parse_flags(...)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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139
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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140 assert(type(version) == "string" or not version)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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141 if type(name) ~= "string" then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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142 return nil, "Argument missing, see help."
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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143 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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144
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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145 if name:match(".*%.rock") or name:match(".*%.rockspec") then
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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146 return run_unpacker(name)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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147 else
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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148 local search = require("luarocks.search")
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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149 return search.act_on_src_or_rockspec(run_unpacker, name, version)
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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150 end
d137f631bad5 <GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
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151 end