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comparison share/lua/5.2/luarocks/repos.lua @ 1132:d137f631bad5
<GreyKnight> (cd luabuild/luarocks-2.0.12; make install)
author | HackBot |
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date | Fri, 14 Dec 2012 22:24:27 +0000 |
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1131:ff65dfb63263 | 1132:d137f631bad5 |
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1 | |
2 --- Functions for managing the repository on disk. | |
3 module("luarocks.repos", package.seeall) | |
4 | |
5 local fs = require("luarocks.fs") | |
6 local path = require("luarocks.path") | |
7 local cfg = require("luarocks.cfg") | |
8 local util = require("luarocks.util") | |
9 local dir = require("luarocks.dir") | |
10 local manif = require("luarocks.manif") | |
11 local deps = require("luarocks.deps") | |
12 | |
13 --- Get all installed versions of a package. | |
14 -- @param name string: a package name. | |
15 -- @return table or nil: An array of strings listing installed | |
16 -- versions of a package, or nil if none is available. | |
17 local function get_installed_versions(name) | |
18 assert(type(name) == "string") | |
19 | |
20 local dirs = fs.list_dir(path.versions_dir(name)) | |
21 return (dirs and #dirs > 0) and dirs or nil | |
22 end | |
23 | |
24 --- Check if a package exists in a local repository. | |
25 -- Version numbers are compared as exact string comparison. | |
26 -- @param name string: name of package | |
27 -- @param version string: package version in string format | |
28 -- @return boolean: true if a package is installed, | |
29 -- false otherwise. | |
30 function is_installed(name, version) | |
31 assert(type(name) == "string") | |
32 assert(type(version) == "string") | |
33 | |
34 return fs.is_dir(path.install_dir(name, version)) | |
35 end | |
36 | |
37 local function recurse_rock_manifest_tree(file_tree, action) | |
38 assert(type(file_tree) == "table") | |
39 assert(type(action) == "function") | |
40 local function do_recurse_rock_manifest_tree(tree, parent_path, parent_module) | |
41 | |
42 for file, sub in pairs(tree) do | |
43 if type(sub) == "table" then | |
44 local ok, err = do_recurse_rock_manifest_tree(sub, parent_path..file.."/", parent_module..file..".") | |
45 if not ok then return nil, err end | |
46 else | |
47 local ok, err = action(parent_path, parent_module, file) | |
48 if not ok then return nil, err end | |
49 end | |
50 end | |
51 return true | |
52 end | |
53 return do_recurse_rock_manifest_tree(file_tree, "", "") | |
54 end | |
55 | |
56 local function store_package_data(result, name, file_tree) | |
57 if not file_tree then return end | |
58 return recurse_rock_manifest_tree(file_tree, | |
59 function(parent_path, parent_module, file) | |
60 local pathname = parent_path..file | |
61 result[path.path_to_module(pathname)] = pathname | |
62 return true | |
63 end | |
64 ) | |
65 end | |
66 | |
67 --- Obtain a list of modules within an installed package. | |
68 -- @param package string: The package name; for example "luasocket" | |
69 -- @param version string: The exact version number including revision; | |
70 -- for example "2.0.1-1". | |
71 -- @return table: A table of modules where keys are module identifiers | |
72 -- in "foo.bar" format and values are pathnames in architecture-dependent | |
73 -- "foo/bar.so" format. If no modules are found or if package or version | |
74 -- are invalid, an empty table is returned. | |
75 function package_modules(package, version) | |
76 assert(type(package) == "string") | |
77 assert(type(version) == "string") | |
78 | |
79 local result = {} | |
80 local rock_manifest = manif.load_rock_manifest(package, version) | |
81 store_package_data(result, package, rock_manifest.lib) | |
82 store_package_data(result, package, rock_manifest.lua) | |
83 return result | |
84 end | |
85 | |
86 --- Obtain a list of command-line scripts within an installed package. | |
87 -- @param package string: The package name; for example "luasocket" | |
88 -- @param version string: The exact version number including revision; | |
89 -- for example "2.0.1-1". | |
90 -- @return table: A table of items where keys are command names | |
91 -- as strings and values are pathnames in architecture-dependent | |
92 -- ".../bin/foo" format. If no modules are found or if package or version | |
93 -- are invalid, an empty table is returned. | |
94 function package_commands(package, version) | |
95 assert(type(package) == "string") | |
96 assert(type(version) == "string") | |
97 | |
98 local result = {} | |
99 local rock_manifest = manif.load_rock_manifest(package, version) | |
100 store_package_data(result, package, rock_manifest.bin) | |
101 return result | |
102 end | |
103 | |
104 | |
105 --- Check if a rock contains binary executables. | |
106 -- @param name string: name of an installed rock | |
107 -- @param version string: version of an installed rock | |
108 -- @return boolean: returns true if rock contains platform-specific | |
109 -- binary executables, or false if it is a pure-Lua rock. | |
110 function has_binaries(name, version) | |
111 assert(type(name) == "string") | |
112 assert(type(version) == "string") | |
113 | |
114 local rock_manifest = manif.load_rock_manifest(name, version) | |
115 if rock_manifest.bin then | |
116 for name, md5 in pairs(rock_manifest.bin) do | |
117 -- TODO verify that it is the same file. If it isn't, find the actual command. | |
118 if fs.is_actual_binary(dir.path(cfg.deploy_bin_dir, name)) then | |
119 return true | |
120 end | |
121 end | |
122 end | |
123 return false | |
124 end | |
125 | |
126 function run_hook(rockspec, hook_name) | |
127 assert(type(rockspec) == "table") | |
128 assert(type(hook_name) == "string") | |
129 | |
130 local hooks = rockspec.hooks | |
131 if not hooks then | |
132 return true | |
133 end | |
134 if not hooks.substituted_variables then | |
135 util.variable_substitutions(hooks, rockspec.variables) | |
136 hooks.substituted_variables = true | |
137 end | |
138 local hook = hooks[hook_name] | |
139 if hook then | |
140 util.printout(hook) | |
141 if not fs.execute(hook) then | |
142 return nil, "Failed running "..hook_name.." hook." | |
143 end | |
144 end | |
145 return true | |
146 end | |
147 | |
148 local function install_binary(source, target) | |
149 assert(type(source) == "string") | |
150 assert(type(target) == "string") | |
151 | |
152 local match = source:match("%.lua$") | |
153 local file, ok, err | |
154 if not match then | |
155 file = io.open(source) | |
156 end | |
157 if match or (file and file:read():match("^#!.*lua.*")) then | |
158 ok, err = fs.wrap_script(source, target) | |
159 else | |
160 ok, err = fs.copy_binary(source, target) | |
161 end | |
162 if file then file:close() end | |
163 return ok, err | |
164 end | |
165 | |
166 local function resolve_conflict(target, deploy_dir, name, version) | |
167 local cname, cversion = manif.find_current_provider(target) | |
168 if not cname then | |
169 return nil, cversion | |
170 end | |
171 if name ~= cname or deps.compare_versions(version, cversion) then | |
172 local versioned = path.versioned_name(target, deploy_dir, cname, cversion) | |
173 fs.make_dir(dir.dir_name(versioned)) | |
174 fs.move(target, versioned) | |
175 return target | |
176 else | |
177 return path.versioned_name(target, deploy_dir, name, version) | |
178 end | |
179 end | |
180 | |
181 function should_wrap_bin_scripts(rockspec) | |
182 assert(type(rockspec) == "table") | |
183 | |
184 if cfg.wrap_bin_scripts ~= nil then | |
185 return cfg.wrap_bin_scripts | |
186 end | |
187 if rockspec.deploy and rockspec.deploy.wrap_bin_scripts == false then | |
188 return false | |
189 end | |
190 return true | |
191 end | |
192 | |
193 function deploy_files(name, version, wrap_bin_scripts) | |
194 assert(type(name) == "string") | |
195 assert(type(version) == "string") | |
196 assert(type(wrap_bin_scripts) == "boolean") | |
197 | |
198 local function deploy_file_tree(file_tree, source_dir, deploy_dir, move_fn) | |
199 if not move_fn then | |
200 move_fn = fs.move | |
201 end | |
202 return recurse_rock_manifest_tree(file_tree, | |
203 function(parent_path, parent_module, file) | |
204 local source = dir.path(source_dir, parent_path, file) | |
205 local target = dir.path(deploy_dir, parent_path, file) | |
206 local ok, err | |
207 if fs.exists(target) then | |
208 local new_target, err = resolve_conflict(target, deploy_dir, name, version) | |
209 if err == "untracked" then | |
210 fs.delete(target) | |
211 elseif err then | |
212 return nil, err.." Cannot install new version." | |
213 else | |
214 target = new_target | |
215 end | |
216 end | |
217 fs.make_dir(dir.dir_name(target)) | |
218 ok, err = move_fn(source, target) | |
219 fs.remove_dir_tree_if_empty(dir.dir_name(source)) | |
220 if not ok then return nil, err end | |
221 return true | |
222 end | |
223 ) | |
224 end | |
225 | |
226 local rock_manifest = manif.load_rock_manifest(name, version) | |
227 | |
228 local ok, err = true | |
229 if rock_manifest.bin then | |
230 local move_bin_fn = wrap_bin_scripts and install_binary or fs.copy_binary | |
231 ok, err = deploy_file_tree(rock_manifest.bin, path.bin_dir(name, version), cfg.deploy_bin_dir, move_bin_fn) | |
232 end | |
233 if ok and rock_manifest.lua then | |
234 ok, err = deploy_file_tree(rock_manifest.lua, path.lua_dir(name, version), cfg.deploy_lua_dir) | |
235 end | |
236 if ok and rock_manifest.lib then | |
237 ok, err = deploy_file_tree(rock_manifest.lib, path.lib_dir(name, version), cfg.deploy_lib_dir) | |
238 end | |
239 return ok, err | |
240 end | |
241 | |
242 --- Delete a package from the local repository. | |
243 -- Version numbers are compared as exact string comparison. | |
244 -- @param name string: name of package | |
245 -- @param version string: package version in string format | |
246 -- @param quick boolean: do not try to fix the versioned name | |
247 -- of another version that provides the same module that | |
248 -- was deleted. This is used during 'purge', as every module | |
249 -- will be eventually deleted. | |
250 function delete_version(name, version, quick) | |
251 assert(type(name) == "string") | |
252 assert(type(version) == "string") | |
253 | |
254 local function delete_deployed_file_tree(file_tree, deploy_dir) | |
255 return recurse_rock_manifest_tree(file_tree, | |
256 function(parent_path, parent_module, file) | |
257 local target = dir.path(deploy_dir, parent_path, file) | |
258 local versioned = path.versioned_name(target, deploy_dir, name, version) | |
259 if fs.exists(versioned) then | |
260 local ok = fs.delete(versioned) | |
261 fs.remove_dir_tree_if_empty(dir.dir_name(versioned)) | |
262 if not ok then return nil, "Failed deleting "..versioned end | |
263 else | |
264 local ok = fs.delete(target) | |
265 if not quick then | |
266 local next_name, next_version = manif.find_next_provider(target) | |
267 if next_name then | |
268 local versioned = path.versioned_name(target, deploy_dir, next_name, next_version) | |
269 fs.move(versioned, target) | |
270 fs.remove_dir_tree_if_empty(dir.dir_name(versioned)) | |
271 end | |
272 end | |
273 fs.remove_dir_tree_if_empty(dir.dir_name(target)) | |
274 if not ok then return nil, "Failed deleting "..target end | |
275 end | |
276 return true | |
277 end | |
278 ) | |
279 end | |
280 | |
281 local rock_manifest = manif.load_rock_manifest(name, version) | |
282 if not rock_manifest then | |
283 return nil, "rock_manifest file not found for "..name.." "..version.." - not a LuaRocks 2 tree?" | |
284 end | |
285 | |
286 local ok, err = true | |
287 if rock_manifest.bin then | |
288 ok, err = delete_deployed_file_tree(rock_manifest.bin, cfg.deploy_bin_dir) | |
289 end | |
290 if ok and rock_manifest.lua then | |
291 ok, err = delete_deployed_file_tree(rock_manifest.lua, cfg.deploy_lua_dir) | |
292 end | |
293 if ok and rock_manifest.lib then | |
294 ok, err = delete_deployed_file_tree(rock_manifest.lib, cfg.deploy_lib_dir) | |
295 end | |
296 if err then return nil, err end | |
297 | |
298 fs.delete(path.install_dir(name, version)) | |
299 if not get_installed_versions(name) then | |
300 fs.delete(dir.path(cfg.rocks_dir, name)) | |
301 end | |
302 return true | |
303 end |