/src/luarocks/fetch/cvs.lua
http://github.com/keplerproject/luarocks · Lua · 55 lines · 39 code · 8 blank · 8 comment · 11 complexity · 981e5ef26ff4d1a1378ee9bfd30a5a67 MD5 · raw file
- --- Fetch back-end for retrieving sources from CVS.
- local cvs = {}
- 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 CVS.
- -- @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 cvs.get_sources(rockspec, extract, dest_dir)
- assert(rockspec:type() == "rockspec")
- assert(type(dest_dir) == "string" or not dest_dir)
- local cvs_cmd = rockspec.variables.CVS
- local ok, err_msg = fs.is_tool_available(cvs_cmd, "CVS")
- 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 command = {cvs_cmd, "-d"..rockspec.source.pathname, "export", module}
- if rockspec.source.tag then
- table.insert(command, 4, "-r")
- table.insert(command, 5, 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 CVS."
- end
- fs.pop_dir()
- return module, store_dir
- end
- return cvs