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--- Fetch back-end for retrieving sources from Subversion.
--module("luarocks.fetch.svn", package.seeall)
local svn = {}
local unpack = unpack or table.unpack
local fs = require("luarocks.fs")
local dir = require("luarocks.dir")
local util = require("luarocks.util")
--- Download sources for building a rock, using Subversion.
-- @param rockspec table: The rockspec table
-- @param extract boolean: Unused in this module (required for API purposes.)
-- @param dest_dir string or nil: If set, will extract to the given directory.
-- @return (string, string) or (nil, string): The absolute pathname of
-- the fetched source tarball and the temporary directory created to
-- store it; or nil and an error message.
function svn.get_sources(rockspec, extract, dest_dir)
assert(type(rockspec) == "table")
assert(type(dest_dir) == "string" or not dest_dir)
local svn_cmd = rockspec.variables.SVN
local ok, err_msg = fs.is_tool_available(svn_cmd, "--version", "Subversion")
if not ok then
return nil, err_msg
end
local name_version = rockspec.name .. "-" .. rockspec.version
local module = rockspec.source.module or dir.base_name(rockspec.source.url)
local url = rockspec.source.url:gsub("^svn://", "")
local command = {svn_cmd, "checkout", url, module}
if rockspec.source.tag then
table.insert(command, 5, "-r")
table.insert(command, 6, rockspec.source.tag)
end
local store_dir
if not dest_dir then
store_dir = fs.make_temp_dir(name_version)
if not store_dir then
return nil, "Failed creating temporary directory."
end
util.schedule_function(fs.delete, store_dir)
else
store_dir = dest_dir
end
local ok, err = fs.change_dir(store_dir)
if not ok then return nil, err end
if not fs.execute(unpack(command)) then
return nil, "Failed fetching files from Subversion."
end
ok, err = fs.change_dir(module)
if not ok then return nil, err end
for _, d in ipairs(fs.find(".")) do
if dir.base_name(d) == ".svn" then
fs.delete(dir.path(store_dir, module, d))
end
end
fs.pop_dir()
fs.pop_dir()
return module, store_dir
end
return svn
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