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<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
author HackBot
date Fri, 14 Dec 2012 22:24:27 +0000
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1131:ff65dfb63263 1132:d137f631bad5
1
2 --- Module implementing the LuaRocks "pack" command.
3 -- Creates a rock, packing sources or binaries.
4 module("luarocks.pack", package.seeall)
5
6 local path = require("luarocks.path")
7 local repos = require("luarocks.repos")
8 local fetch = require("luarocks.fetch")
9 local fs = require("luarocks.fs")
10 local cfg = require("luarocks.cfg")
11 local util = require("luarocks.util")
12 local dir = require("luarocks.dir")
13 local manif = require("luarocks.manif")
14 local search = require("luarocks.search")
15
16 help_summary = "Create a rock, packing sources or binaries."
17 help_arguments = "{<rockspec>|<name> [<version>]}"
18 help = [[
19 Argument may be a rockspec file, for creating a source rock,
20 or the name of an installed package, for creating a binary rock.
21 In the latter case, the app version may be given as a second
22 argument.
23 ]]
24
25 --- Create a source rock.
26 -- Packages a rockspec and its required source files in a rock
27 -- file with the .src.rock extension, which can later be built and
28 -- installed with the "build" command.
29 -- @param rockspec_file string: An URL or pathname for a rockspec file.
30 -- @return string or (nil, string): The filename of the resulting
31 -- .src.rock file; or nil and an error message.
32 local function pack_source_rock(rockspec_file)
33 assert(type(rockspec_file) == "string")
34
35 local rockspec, err = fetch.load_rockspec(rockspec_file)
36 if err then
37 return nil, "Error loading rockspec: "..err
38 end
39 rockspec_file = rockspec.local_filename
40
41 local name_version = rockspec.name .. "-" .. rockspec.version
42 local rock_file = fs.absolute_name(name_version .. ".src.rock")
43
44 local source_file, source_dir = fetch.fetch_sources(rockspec, false)
45 if not source_file then
46 return nil, source_dir
47 end
48 fs.change_dir(source_dir)
49
50 fs.delete(rock_file)
51 fs.copy(rockspec_file, source_dir)
52 if not fs.zip(rock_file, dir.base_name(rockspec_file), dir.base_name(source_file)) then
53 return nil, "Failed packing "..rock_file
54 end
55 fs.pop_dir()
56
57 return rock_file
58 end
59
60 local function copy_back_files(name, version, file_tree, deploy_dir, pack_dir)
61 fs.make_dir(pack_dir)
62 for file, sub in pairs(file_tree) do
63 local source = dir.path(deploy_dir, file)
64 local target = dir.path(pack_dir, file)
65 if type(sub) == "table" then
66 local ok, err = copy_back_files(name, version, sub, source, target)
67 else
68 local versioned = path.versioned_name(source, deploy_dir, name, version)
69 if fs.exists(versioned) then
70 fs.copy(versioned, target)
71 else
72 fs.copy(source, target)
73 end
74 end
75 end
76 return true
77 end
78
79 -- @param name string: Name of package to pack.
80 -- @param version string or nil: A version number may also be passed.
81 -- @return string or (nil, string): The filename of the resulting
82 -- .src.rock file; or nil and an error message.
83 local function do_pack_binary_rock(name, version)
84 assert(type(name) == "string")
85 assert(type(version) == "string" or not version)
86
87 local query = search.make_query(name, version)
88 query.exact_name = true
89 local results = {}
90
91 search.manifest_search(results, cfg.rocks_dir, query)
92
93 if not next(results) then
94 return nil, "'"..name.."' does not seem to be an installed rock."
95 end
96
97 local versions = results[name]
98
99 if not version then
100 local first = next(versions)
101 if next(versions, first) then
102 return nil, "Please specify which version of '"..name.."' to pack."
103 end
104 version = first
105 end
106 if not version:match("[^-]+%-%d+") then
107 return nil, "Expected version "..version.." in version-revision format."
108 end
109
110 local info = versions[version][1]
111
112 local root = path.root_dir(info.repo)
113 local prefix = path.install_dir(name, version, root)
114
115 if not fs.exists(prefix) then
116 return nil, "'"..name.." "..version.."' does not seem to be an installed rock."
117 end
118
119 local rock_manifest = manif.load_rock_manifest(name, version, root)
120 if not rock_manifest then
121 return nil, "rock_manifest file not found for "..name.." "..version.." - not a LuaRocks 2 tree?"
122 end
123
124 local name_version = name .. "-" .. version
125 local rock_file = fs.absolute_name(name_version .. "."..cfg.arch..".rock")
126
127 local temp_dir = fs.make_temp_dir("pack")
128 fs.copy_contents(prefix, temp_dir)
129
130 local is_binary = false
131 if rock_manifest.lib then
132 copy_back_files(name, version, rock_manifest.lib, path.deploy_lib_dir(root), dir.path(temp_dir, "lib"))
133 is_binary = true
134 end
135 if rock_manifest.lua then
136 copy_back_files(name, version, rock_manifest.lua, path.deploy_lua_dir(root), dir.path(temp_dir, "lua"))
137 end
138
139 fs.change_dir(temp_dir)
140 if not is_binary and not repos.has_binaries(name, version) then
141 rock_file = rock_file:gsub("%."..cfg.arch:gsub("%-","%%-").."%.", ".all.")
142 end
143 fs.delete(rock_file)
144 if not fs.zip(rock_file, unpack(fs.list_dir())) then
145 return nil, "Failed packing "..rock_file
146 end
147 fs.pop_dir()
148 fs.delete(temp_dir)
149 return rock_file
150 end
151
152 function pack_binary_rock(name, version, cmd, ...)
153
154 -- The --pack-binary-rock option for "luarocks build" basically performs
155 -- "luarocks build" on a temporary tree and then "luarocks pack". The
156 -- alternative would require refactoring parts of luarocks.build and
157 -- luarocks.pack, which would save a few file operations: the idea would be
158 -- to shave off the final deploy steps from the build phase and the initial
159 -- collect steps from the pack phase.
160
161 local temp_dir = fs.make_temp_dir("luarocks-build-pack-"..dir.base_name(name))
162 if not temp_dir then
163 return nil, "Failed creating temporary directory."
164 end
165 util.schedule_function(fs.delete, temp_dir)
166
167 path.use_tree(temp_dir)
168 local ok, err = cmd(...)
169 if not ok then
170 return nil, err
171 end
172 local rname, rversion = path.parse_name(name)
173 if not rname then
174 rname, rversion = name, version
175 end
176 return do_pack_binary_rock(rname, rversion)
177 end
178
179 --- Driver function for the "pack" command.
180 -- @param arg string: may be a rockspec file, for creating a source rock,
181 -- or the name of an installed package, for creating a binary rock.
182 -- @param version string or nil: if the name of a package is given, a
183 -- version may also be passed.
184 -- @return boolean or (nil, string): true if successful or nil followed
185 -- by an error message.
186 function run(...)
187 local flags, arg, version = util.parse_flags(...)
188 assert(type(version) == "string" or not version)
189 if type(arg) ~= "string" then
190 return nil, "Argument missing, see help."
191 end
192
193 local file, err
194 if arg:match(".*%.rockspec") then
195 file, err = pack_source_rock(arg)
196 else
197 file, err = do_pack_binary_rock(arg, version)
198 end
199 if err then
200 return nil, err
201 else
202 util.printout("Packed: "..file)
203 return true
204 end
205 end