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--- Module implementing the luarocks "download" command.
-- Download a rock from the repository.
local cmd_download = {}
local util = require("luarocks.util")
local download = require("luarocks.download")
cmd_download.help_summary = "Download a specific rock file from a rocks server."
cmd_download.help_arguments = "[--all] [--arch=<arch> | --source | --rockspec] [<name> [<version>]]"
cmd_download.help = [[
--all Download all files if there are multiple matches.
--source Download .src.rock if available.
--rockspec Download .rockspec if available.
--arch=<arch> Download rock for a specific architecture.
]]
--- Driver function for the "download" command.
-- @param name string: a rock name.
-- @param version string or nil: if the name of a package is given, a
-- version may also be passed.
-- @return boolean or (nil, string): true if successful or nil followed
-- by an error message.
function cmd_download.command(flags, name, version)
assert(type(version) == "string" or not version)
if type(name) ~= "string" and not flags["all"] then
return nil, "Argument missing. "..util.see_help("download")
end
name = util.adjust_name_and_namespace(name, flags)
if not name then name, version = "", "" end
local arch
if flags["source"] then
arch = "src"
elseif flags["rockspec"] then
arch = "rockspec"
elseif flags["arch"] then
arch = flags["arch"]
end
local dl, err = download.download(arch, name:lower(), version, flags["all"])
return dl and true, err
end
return cmd_download
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