Refactor command line handling of namespaces

20 files changed, 108 insertions, 113 deletions

diff --git a/src/luarocks/cmd.lua b/src/luarocks/cmd.lua
index b19535e2..b43faaba 100644
--- a/src/luarocks/cmd.lua
+++ b/src/luarocks/cmd.lua
@@ -393,6 +393,7 @@ Enabling completion for Fish:
    parser:option("--only-sources", "Restrict downloads to paths matching the given URL.")
       :argname("<url>")
    parser:option("--namespace", "Specify the rocks server namespace to use.")
+      :convert(string.lower)
    parser:option("--lua-dir", "Which Lua installation to use.")
       :argname("<prefix>")
    parser:option("--lua-version", "Which Lua version to use.")
diff --git a/src/luarocks/cmd/build.lua b/src/luarocks/cmd/build.lua
index 3bc1554e..8e9956cb 100644
--- a/src/luarocks/cmd/build.lua
+++ b/src/luarocks/cmd/build.lua
@@ -27,6 +27,7 @@ function cmd_build.add_to_parser(parser)
    cmd:argument("rock", "A rockspec file, a source rock file, or the name of "..
       "a rock to be fetched from a repository.")
       :args("?")
+      :action(util.namespaced_name_action)
    cmd:argument("version", "Rock version.")
       :args("?")
 
@@ -76,21 +77,20 @@ local function build_rock(rock_filename, opts)
    return ok, err, errcode
 end
 
-local function do_build(ns_name, version, opts)
-   assert(type(ns_name) == "string")
+local function do_build(name, namespace, version, opts)
+   assert(type(name) == "string")
+   assert(type(namespace) == "string" or not namespace)
    assert(version == nil or type(version) == "string")
    assert(opts:type() == "build.opts")
 
    local url, err
-   if ns_name:match("%.rockspec$") or ns_name:match("%.rock$") then
-      url = ns_name
+   if name:match("%.rockspec$") or name:match("%.rock$") then
+      url = name
    else
-      url, err = search.find_src_or_rockspec(ns_name, version, opts.check_lua_versions)
+      url, err = search.find_src_or_rockspec(name, namespace, version, opts.check_lua_versions)
       if not url then
          return nil, err
       end
-      local _, namespace = util.split_namespace(ns_name)
-      opts.namespace = namespace
    end
 
    if url:match("%.rockspec$") then
@@ -119,13 +119,11 @@ function cmd_build.command(args)
       return make.command(args)
    end
 
-   local name = util.adjust_name_and_namespace(args.rock, args)
-
    local opts = build.opts({
       need_to_fetch = true,
       minimal_mode = false,
       deps_mode = deps.get_deps_mode(args),
-      build_only_deps = not not args.only_deps,
+      build_only_deps = not not (args.only_deps and not args.pack_binary_rock),
       namespace = args.namespace,
       branch = args.branch,
       verify = not not args.verify,
@@ -138,9 +136,8 @@ function cmd_build.command(args)
    end
 
    if args.pack_binary_rock then
-      return pack.pack_binary_rock(name, args.version, args.sign, function()
-         opts.build_only_deps = false
-         local name, version, errcode = do_build(name, args.version, opts)
+      return pack.pack_binary_rock(args.rock, args.namespace, args.version, args.sign, function()
+         local name, version, errcode = do_build(args.rock, args.namespace, args.version, opts)
          if name and args.no_doc then
             util.remove_doc_dir(name, version)
          end
@@ -153,10 +150,10 @@ function cmd_build.command(args)
       return nil, err, cmd.errorcodes.PERMISSIONDENIED
    end
 
-   ok, err = do_build(name, args.version, opts)
-   if not ok then return nil, err end
-   local version
-   name, version = ok, err
+   local name, version, errcode = do_build(args.rock, args.namespace, args.version, opts)
+   if not name then
+      return nil, version, errcode
+   end
 
    if args.no_doc then
       util.remove_doc_dir(name, version)
diff --git a/src/luarocks/cmd/doc.lua b/src/luarocks/cmd/doc.lua
index 4b3335d8..6345063d 100644
--- a/src/luarocks/cmd/doc.lua
+++ b/src/luarocks/cmd/doc.lua
@@ -21,6 +21,7 @@ function doc.add_to_parser(parser)
       :summary("Show documentation for an installed rock.")
 
    cmd:argument("rock", "Name of the rock.")
+      :action(util.namespaced_name_action)
    cmd:argument("version", "Version of the rock.")
       :args("?")
 
@@ -29,16 +30,16 @@ function doc.add_to_parser(parser)
    cmd:flag("--porcelain", "Produce machine-friendly output.")
 end
 
-local function show_homepage(homepage, name, version)
+local function show_homepage(homepage, name, namespace, version)
    if not homepage then
-      return nil, "No 'homepage' field in rockspec for "..name.." "..version
+      return nil, "No 'homepage' field in rockspec for "..util.format_rock_name(name, namespace, version)
    end
    util.printout("Opening "..homepage.." ...")
    fs.browser(homepage)
    return true
 end
 
-local function try_to_open_homepage(name, version)
+local function try_to_open_homepage(name, namespace, version)
    local temp_dir, err = fs.make_temp_dir("doc-"..name.."-"..(version or ""))
    if not temp_dir then
       return nil, "Failed creating temporary directory: "..err
@@ -46,26 +47,24 @@ local function try_to_open_homepage(name, version)
    util.schedule_function(fs.delete, temp_dir)
    local ok, err = fs.change_dir(temp_dir)
    if not ok then return nil, err end
-   local filename, err = download.download("rockspec", name, version)
+   local filename, err = download.download("rockspec", name, namespace, version)
    if not filename then return nil, err end
    local rockspec, err = fetch.load_local_rockspec(filename)
    if not rockspec then return nil, err end
    fs.pop_dir()
    local descript = rockspec.description or {}
-   if not descript.homepage then return nil, "No homepage defined for "..name end
-   return show_homepage(descript.homepage, name, version)
+   return show_homepage(descript.homepage, name, namespace, version)
 end
 
 --- Driver function for "doc" command.
 -- @return boolean: True if succeeded, nil on errors.
 function doc.command(args)
-   local name = util.adjust_name_and_namespace(args.rock, args)
-   local version = args.version
-   local query = queries.new(name, version)
+   local query = queries.new(args.rock, args.namespace, args.version)
    local iname, iversion, repo = search.pick_installed_rock(query, args.tree)
    if not iname then
-      util.printout(name..(version and " "..version or "").." is not installed. Looking for it in the rocks servers...")
-      return try_to_open_homepage(name, version)
+      local rock = util.format_rock_name(args.rock, args.namespace, args.version)
+      util.printout(rock.." is not installed. Looking for it in the rocks servers...")
+      return try_to_open_homepage(args.rock, args.namespace, args.version)
    end
    name, version = iname, iversion
    
@@ -74,7 +73,7 @@ function doc.command(args)
    local descript = rockspec.description or {}
 
    if args.home then
-      return show_homepage(descript.homepage, name, version)
+      return show_homepage(descript.homepage, name, args.namespace, version)
    end
 
    local directory = path.install_dir(name, version, repo)
diff --git a/src/luarocks/cmd/download.lua b/src/luarocks/cmd/download.lua
index 4beecdc3..1f844595 100644
--- a/src/luarocks/cmd/download.lua
+++ b/src/luarocks/cmd/download.lua
@@ -11,6 +11,7 @@ function cmd_download.add_to_parser(parser)
 
    cmd:argument("name", "Name of the rock.")
       :args("?")
+      :action(util.namespaced_name_action)
    cmd:argument("version", "Version of the rock.")
       :args("?")
 
@@ -31,9 +32,7 @@ function cmd_download.command(args)
       return nil, "Argument missing. "..util.see_help("download")
    end
 
-   local name = util.adjust_name_and_namespace(args.name, args)
-
-   if not name then name, args.version = "", "" end
+   args.name = args.name or ""
 
    local arch
 
@@ -45,7 +44,7 @@ function cmd_download.command(args)
       arch = args.arch
    end
    
-   local dl, err = download.download(arch, name:lower(), args.version, args.all, args.check_lua_versions)
+   local dl, err = download.download(arch, args.name, args.namespace, args.version, args.all, args.check_lua_versions)
    return dl and true, err
 end
 
diff --git a/src/luarocks/cmd/install.lua b/src/luarocks/cmd/install.lua
index 88556e25..55074366 100644
--- a/src/luarocks/cmd/install.lua
+++ b/src/luarocks/cmd/install.lua
@@ -21,6 +21,7 @@ function install.add_to_parser(parser)
 
    cmd:argument("rock", "The name of a rock to be fetched from a repository "..
       "or a filename of a locally available rock.")
+      :action(util.namespaced_name_action)
    cmd:argument("version", "Version of the rock.")
       :args("?")
 
@@ -212,8 +213,6 @@ end
 -- @return boolean or (nil, string, exitcode): True if installation was
 -- successful, nil and an error message otherwise. exitcode is optionally returned.
 function install.command(args)
-   args.rock = util.adjust_name_and_namespace(args.rock, args)
-
    local ok, err = fs.check_command_permissions(args)
    if not ok then return nil, err, cmd.errorcodes.PERMISSIONDENIED end
 
@@ -238,7 +237,7 @@ function install.command(args)
       end
    else
       local url, err = search.find_rock_checking_lua_versions(
-                          queries.new(args.rock:lower(), args.version),
+                          queries.new(args.rock, args.namespace, args.version),
                           args.check_lua_versions)
       if not url then
          return nil, err
diff --git a/src/luarocks/cmd/list.lua b/src/luarocks/cmd/list.lua
index cac5cd8a..aa815ea3 100644
--- a/src/luarocks/cmd/list.lua
+++ b/src/luarocks/cmd/list.lua
@@ -69,7 +69,7 @@ end
 --- Driver function for "list" command.
 -- @return boolean: True if succeeded, nil on errors.
 function list.command(args)
-   local query = queries.new(args.filter and args.filter:lower() or "", args.version, true)
+   local query = queries.new(args.filter and args.filter:lower() or "", args.namespace, args.version, true)
    local trees = cfg.rocks_trees
    local title = "Rocks installed for Lua "..cfg.lua_version
    if args.tree then
diff --git a/src/luarocks/cmd/make.lua b/src/luarocks/cmd/make.lua
index 13e974c1..ad6a211d 100644
--- a/src/luarocks/cmd/make.lua
+++ b/src/luarocks/cmd/make.lua
@@ -94,14 +94,15 @@ function make.command(args)
       return nil, err
    end
 
-   local name = util.adjust_name_and_namespace(rockspec.name, args)
+   local name, namespace = util.split_namespace(rockspec.name)
+   namespace = namespace or args.namespace
 
    local opts = build.opts({
       need_to_fetch = false,
       minimal_mode = true,
       deps_mode = deps.get_deps_mode(args),
       build_only_deps = false,
-      namespace = args.namespace,
+      namespace = namespace,
       branch = args.branch,
       verify = not not args.verify,
       check_lua_versions = not not args.check_lua_versions,
@@ -113,7 +114,7 @@ function make.command(args)
    end
 
    if args.pack_binary_rock then
-      return pack.pack_binary_rock(name, rockspec.version, args.sign, function()
+      return pack.pack_binary_rock(name, namespace, rockspec.version, args.sign, function()
          local name, version = build.build_rockspec(rockspec, opts)
          if name and args.no_doc then
             util.remove_doc_dir(name, version)
diff --git a/src/luarocks/cmd/pack.lua b/src/luarocks/cmd/pack.lua
index fde8f875..9ceb2fa8 100644
--- a/src/luarocks/cmd/pack.lua
+++ b/src/luarocks/cmd/pack.lua
@@ -13,6 +13,7 @@ function cmd_pack.add_to_parser(parser)
 
    cmd:argument("rock", "A rockspec file, for creating a source rock, or the "..
       "name of an installed package, for creating a binary rock.")
+      :action(util.namespaced_name_action)
    cmd:argument("version", "A version may be given if the first argument is a rock name.")
       :args("?")
 
@@ -27,8 +28,7 @@ function cmd_pack.command(args)
    if args.rock:match(".*%.rockspec") then
       file, err = pack.pack_source_rock(args.rock)
    else
-      local name = util.adjust_name_and_namespace(args.rock, args)
-      local query = queries.new(name, args.version)
+      local query = queries.new(args.rock, args.namespace, args.version)
       file, err = pack.pack_installed_rock(query, args.tree)
    end
    return pack.report_and_sign_local_file(file, err, args.sign)
diff --git a/src/luarocks/cmd/remove.lua b/src/luarocks/cmd/remove.lua
index f29b0b7d..cede148d 100644
--- a/src/luarocks/cmd/remove.lua
+++ b/src/luarocks/cmd/remove.lua
@@ -25,6 +25,7 @@ To override this check and force the removal, use --force or --force-fast.]],
       :summary("Uninstall a rock.")
 
    cmd:argument("rock", "Name of the rock to be uninstalled.")
+      :action(util.namespaced_name_action)
    cmd:argument("version", "Version of the rock to uninstall.")
       :args("?")
 
@@ -37,9 +38,8 @@ end
 -- @return boolean or (nil, string, exitcode): True if removal was
 -- successful, nil and an error message otherwise. exitcode is optionally returned.
 function cmd_remove.command(args)
-   local name = util.adjust_name_and_namespace(args.rock, args)
-   
-   local deps_mode = args.deps_mode or cfg.deps_mode
+   local name = args.rock
+   local deps_mode = deps.get_deps_mode(args)
    
    local ok, err = fs.check_command_permissions(args)
    if not ok then return nil, err, cmd.errorcodes.PERMISSIONDENIED end
@@ -54,9 +54,10 @@ function cmd_remove.command(args)
 
    local results = {}
    name = name:lower()
-   search.local_manifest_search(results, cfg.rocks_dir, queries.new(name, version))
+   search.local_manifest_search(results, cfg.rocks_dir, queries.new(name, args.namespace, version))
    if not results[name] then
-      return nil, "Could not find rock '"..name..(version and " "..version or "").."' in "..path.rocks_tree_to_string(cfg.root_dir)
+      local rock = util.format_rock_name(name, args.namespace, version)
+      return nil, "Could not find rock '"..rock.."' in "..path.rocks_tree_to_string(cfg.root_dir)
    end
 
    local ok, err = remove.remove_search_results(results, name, deps_mode, args.force, args.force_fast)
diff --git a/src/luarocks/cmd/search.lua b/src/luarocks/cmd/search.lua
index f34cf7b9..181fdacc 100644
--- a/src/luarocks/cmd/search.lua
+++ b/src/luarocks/cmd/search.lua
@@ -14,6 +14,7 @@ function cmd_search.add_to_parser(parser)
 
    cmd:argument("name", "Name of the rock to search for.")
       :args("?")
+      :action(util.namespaced_name_action)
    cmd:argument("version", "Rock version to search for.")
       :args("?")
 
@@ -53,8 +54,7 @@ end
 -- @return boolean or (nil, string): True if build was successful; nil and an
 -- error message otherwise.
 function cmd_search.command(args)
-
-   local name = util.adjust_name_and_namespace(args.name, args)
+   local name = args.name
 
    if args.all then
       name, args.version = "", nil
@@ -64,10 +64,10 @@ function cmd_search.command(args)
       return nil, "Enter name and version or use --all. "..util.see_help("search")
    end
    
-   local query = queries.new(name:lower(), args.version, true)
+   local query = queries.new(name, args.namespace, args.version, true)
    local result_tree, err = search.search_repos(query)
    local porcelain = args.porcelain
-   local full_name = name .. (args.version and " " .. args.version or "")
+   local full_name = util.format_rock_name(name, args.namespace, args.version)
    util.title(full_name .. " - Search results for Lua "..cfg.lua_version..":", porcelain, "=")
    local sources, binaries = split_source_and_binary_results(result_tree)
    if next(sources) and not args.binary then
diff --git a/src/luarocks/cmd/show.lua b/src/luarocks/cmd/show.lua
index db7aed54..8bb61b94 100644
--- a/src/luarocks/cmd/show.lua
+++ b/src/luarocks/cmd/show.lua
@@ -22,6 +22,7 @@ With flags, return only the desired information.]], util.see_also())
       :summary("Show information about an installed rock.")
 
    cmd:argument("rock", "Name of an installed rock.")
+      :action(util.namespaced_name_action)
    cmd:argument("version", "Rock version.")
       :args("?")
 
@@ -260,12 +261,9 @@ end
 --- Driver function for "show" command.
 -- @return boolean: True if succeeded, nil on errors.
 function show.command(args)
-   local name = util.adjust_name_and_namespace(args.rock, args)
-   local version = args.version
-   local query = queries.new(name, version)
+   local query = queries.new(args.rock, args.namespace, args.version)
    
-   local repo, repo_url
-   name, version, repo, repo_url = search.pick_installed_rock(query, args.tree)
+   local name, version, repo, repo_url = search.pick_installed_rock(query, args.tree)
    if not name then
       return nil, version
    end
diff --git a/src/luarocks/cmd/unpack.lua b/src/luarocks/cmd/unpack.lua
index c2b5b983..b9bec4a6 100644
--- a/src/luarocks/cmd/unpack.lua
+++ b/src/luarocks/cmd/unpack.lua
@@ -19,6 +19,7 @@ In the latter case, the rock version may be given as a second argument.]],
       :summary("Unpack the contents of a rock.")
 
    cmd:argument("rock", "A rock file or the name of a rock.")
+      :action(util.namespaced_name_action)
    cmd:argument("version", "Rock version.")
       :args("?")
 
@@ -151,13 +152,11 @@ end
 -- @return boolean or (nil, string): true if successful or nil followed
 -- by an error message.
 function unpack.command(args)
-   local ns_name = util.adjust_name_and_namespace(args.rock, args)
-
    local url, err
-   if ns_name:match(".*%.rock") or ns_name:match(".*%.rockspec") then
-      url = ns_name
+   if args.rock:match(".*%.rock") or args.rock:match(".*%.rockspec") then
+      url = args.rock
    else
-      url, err = search.find_src_or_rockspec(ns_name, args.version, args.check_lua_versions)
+      url, err = search.find_src_or_rockspec(args.rock, args.namespace, args.version, args.check_lua_versions)
       if not url then
          return nil, err
       end
diff --git a/src/luarocks/cmd/write_rockspec.lua b/src/luarocks/cmd/write_rockspec.lua
index ee825ce4..521f8fbc 100644
--- a/src/luarocks/cmd/write_rockspec.lua
+++ b/src/luarocks/cmd/write_rockspec.lua
@@ -263,9 +263,7 @@ local function rockspec_cleanup(rockspec)
 end
 
 function write_rockspec.command(args)
-
-   local name = util.adjust_name_and_namespace(args.name, args)
-   local version = args.version
+   local name, version = args.name, args.version
    local location = args.location
 
    if not name then
diff --git a/src/luarocks/deps.lua b/src/luarocks/deps.lua
index d54c30de..08f2debb 100644
--- a/src/luarocks/deps.lua
+++ b/src/luarocks/deps.lua
@@ -102,7 +102,7 @@ local function match_dep(dep, get_versions)
          latest_matching_msg = " (latest matching is " .. latest_vstring .. ")"
       end
       util.printout("Forcing " .. dep.name .. " to pinned version " .. lockversion .. latest_matching_msg)
-      return nil, nil, queries.new(dep.name, lockversion)
+      return nil, nil, queries.new(dep.name, dep.namespace, lockversion)
    end
    
    return latest_vstring, locations[latest_vstring], dep, provided
@@ -155,11 +155,11 @@ function deps.match_deps(dependencies, rocks_provided, blacklist, deps_mode)
    return match_all_deps(dependencies, get_versions)
 end
 
-local function rock_status(name, get_versions)
-   assert(type(name) == "string")
+local function rock_status(dep, get_versions)
+   assert(dep:type() == "query")
    assert(type(get_versions) == "function")
 
-   local installed, _, _, provided = match_dep(queries.new(name), get_versions)
+   local installed, _, _, provided = match_dep(dep, get_versions)
    local installation_type = provided and "provided by VM" or "installed"
    return installed and installed.." "..installation_type or "not installed"
 end
@@ -197,7 +197,7 @@ function deps.report_missing_dependencies(name, version, dependencies, deps_mode
             first_missing_dep = false
          end
 
-         util.printout(("   %s (%s)"):format(tostring(dep), rock_status(dep.name, get_versions)))
+         util.printout(("   %s (%s)"):format(tostring(dep), rock_status(dep, get_versions)))
       end
    end
 end
@@ -301,11 +301,12 @@ function deps.fulfill_dependencies(rockspec, depskey, deps_mode, verify, deplock
       util.printout("Using dependencies pinned in lockfile: " .. filename)
 
       local get_versions = prepare_get_versions("none", rocks_provided, depskey)
-      for dname, dversion in deplocks.each(depskey) do
-         local dep = queries.new(dname, dversion)
+      for dnsname, dversion in deplocks.each(depskey) do
+         local dname, dnamespace = util.split_namespace(dnsname)
+         local dep = queries.new(dname, dnamespace, dversion)
 
          util.printout(("%s %s is pinned to %s (%s)"):format(
-            name, version, tostring(dep), rock_status(dep.name, get_versions)))
+            name, version, tostring(dep), rock_status(dep, get_versions)))
 
          local ok, err = deps.fulfill_dependency(dep, "none", rocks_provided, verify, depskey)
          if not ok then
@@ -331,7 +332,7 @@ function deps.fulfill_dependencies(rockspec, depskey, deps_mode, verify, deplock
    for _, dep in ipairs(rockspec[depskey]) do
 
       util.printout(("%s %s depends on %s (%s)"):format(
-         name, version, tostring(dep), rock_status(dep.name, get_versions)))
+         name, version, tostring(dep), rock_status(dep, get_versions)))
 
       local ok, found_or_err, _, no_upgrade = deps.fulfill_dependency(dep, deps_mode, rocks_provided, verify, depskey)
       if ok then
diff --git a/src/luarocks/download.lua b/src/luarocks/download.lua
index 145fefed..70570344 100644
--- a/src/luarocks/download.lua
+++ b/src/luarocks/download.lua
@@ -6,6 +6,7 @@ local search = require("luarocks.search")
 local queries = require("luarocks.queries")
 local fs = require("luarocks.fs")
 local dir = require("luarocks.dir")
+local util = require("luarocks.util")
 
 local function get_file(filename)
    local protocol, pathname = dir.split_url(filename)
@@ -21,9 +22,9 @@ local function get_file(filename)
    end
 end
 
-function download.download(arch, name, version, all, check_lua_versions)
+function download.download(arch, name, namespace, version, all, check_lua_versions)
    local substring = (all and name == "")
-   local query = queries.new(name, version, substring, arch)
+   local query = queries.new(name, namespace, version, substring, arch)
    local search_err
 
    if all then
@@ -58,8 +59,8 @@ function download.download(arch, name, version, all, check_lua_versions)
          return get_file(url)
       end
    end
-   return nil, "Could not find a result named "..name..(version and " "..version or "")..
-      (search_err and ": "..search_err or ".")
+   local rock = util.format_rock_name(name, namespace, version)
+   return nil, "Could not find a result named "..rock..(search_err and ": "..search_err or ".")
 end
 
 return download
diff --git a/src/luarocks/pack.lua b/src/luarocks/pack.lua
index 336b9167..983aef74 100644
--- a/src/luarocks/pack.lua
+++ b/src/luarocks/pack.lua
@@ -137,7 +137,7 @@ function pack.report_and_sign_local_file(file, err, sign)
    end
    util.printout("Packed: "..file)
    if sigfile then
-      util.printout("Sigature stored in: "..sigfile)
+      util.printout("Signature stored in: "..sigfile)
    end
    if err then
       return nil, err
@@ -145,7 +145,7 @@ function pack.report_and_sign_local_file(file, err, sign)
    return true
 end
 
-function pack.pack_binary_rock(name, version, sign, cmd)
+function pack.pack_binary_rock(name, namespace, version, sign, cmd)
 
    -- The --pack-binary-rock option for "luarocks build" basically performs
    -- "luarocks build" on a temporary tree and then "luarocks pack". The
@@ -169,7 +169,7 @@ function pack.pack_binary_rock(name, version, sign, cmd)
    if not rname then
       rname, rversion = name, version
    end
-   local query = queries.new(rname, rversion)
+   local query = queries.new(rname, namespace, rversion)
    local file, err = pack.pack_installed_rock(query, temp_dir)
    return pack.report_and_sign_local_file(file, err, sign)
 end
diff --git a/src/luarocks/queries.lua b/src/luarocks/queries.lua
index 15dc5fac..de5c9652 100644
--- a/src/luarocks/queries.lua
+++ b/src/luarocks/queries.lua
@@ -40,15 +40,17 @@ local function arch_to_table(input)
 end
 
 --- Prepare a query in dependency table format.
--- @param ns_name string: the package name, may contain a namespace.
+-- @param name string: the package name.
+-- @param namespace string?: the package namespace.
 -- @param version string?: the package version.
 -- @param substring boolean?: match substrings of the name
 -- (default is false, match full name)
 -- @param arch string?: a string with pipe-separated accepted arch values
 -- @param operator string?: operator for version matching (default is "==")
 -- @return table: A query in table format
-function queries.new(ns_name, version, substring, arch, operator)
-   assert(type(ns_name) == "string")
+function queries.new(name, namespace, version, substring, arch, operator)
+   assert(type(name) == "string")
+   assert(type(namespace) == "string" or not namespace)
    assert(type(version) == "string" or not version)
    assert(type(substring) == "boolean" or not substring)
    assert(type(arch) == "string" or not arch)
@@ -56,8 +58,6 @@ function queries.new(ns_name, version, substring, arch, operator)
    
    operator = operator or "=="
 
-   local name, namespace = util.split_namespace(ns_name)
-   
    local self = {
       name = name,
       namespace = namespace,
@@ -78,7 +78,7 @@ end
 function queries.all(arch)
    assert(type(arch) == "string" or not arch)
 
-   return queries.new("", nil, true, arch)
+   return queries.new("", nil, nil, true, arch)
 end
 
 do
diff --git a/src/luarocks/remove.lua b/src/luarocks/remove.lua
index 9ae89da4..aabd716f 100644
--- a/src/luarocks/remove.lua
+++ b/src/luarocks/remove.lua
@@ -105,7 +105,7 @@ end
 
 function remove.remove_other_versions(name, version, force, fast)
    local results = {}
-   local query = queries.new(name, version, false, nil, "~=")
+   local query = queries.new(name, nil, version, false, nil, "~=")
    search.local_manifest_search(results, cfg.rocks_dir, query)
    if results[name] then
       return remove.remove_search_results(results, name, cfg.deps_mode, force, fast)
diff --git a/src/luarocks/search.lua b/src/luarocks/search.lua
index efe3b9c9..80e4caaa 100644
--- a/src/luarocks/search.lua
+++ b/src/luarocks/search.lua
@@ -250,8 +250,8 @@ function search.find_suitable_rock(query)
    end
 end
 
-function search.find_src_or_rockspec(ns_name, version, check_lua_versions)
-   local query = queries.new(ns_name, version, false, "src|rockspec")
+function search.find_src_or_rockspec(name, namespace, version, check_lua_versions)
+   local query = queries.new(name, namespace, version, false, "src|rockspec")
    local url, err = search.find_rock_checking_lua_versions(query, check_lua_versions)
    if not url then
       return nil, "Could not find a result named "..tostring(query)..": "..err
diff --git a/src/luarocks/util.lua b/src/luarocks/util.lua
index a7c31422..ae198daf 100644
--- a/src/luarocks/util.lua
+++ b/src/luarocks/util.lua
@@ -215,6 +215,10 @@ function util.this_program(default)
    return prog
 end
 
+function util.format_rock_name(name, namespace, version)
+   return (namespace and namespace.."/" or "")..name..(version and " "..version or "")
+end
+
 function util.deps_mode_option(parser, program)
    local cfg = require("luarocks.core.cfg")
 
@@ -338,30 +342,6 @@ function util.LQ(s)
    return ("%q"):format(s)
 end
 
---- Normalize the --namespace option and the user/rock syntax for namespaces.
--- If a namespace is given in user/rock syntax, update the --namespace option;
--- If a namespace is given in --namespace option, update the user/rock syntax.
--- In case of conflicts, the user/rock syntax takes precedence.
-function util.adjust_name_and_namespace(ns_name, args)
-   assert(type(ns_name) == "string" or not ns_name)
-   assert(type(args) == "table")
-
-   if not ns_name then
-      return
-   elseif ns_name:match("%.rockspec$") or ns_name:match("%.rock$") then
-      return ns_name
-   end
-
-   local name, namespace = util.split_namespace(ns_name)
-   if namespace then
-      args.namespace = namespace
-   end
-   if args.namespace then
-      name = args.namespace .. "/" .. name
-   end
-   return name:lower()
-end
-
 -- Split name and namespace of a package name.
 -- @param ns_name a name that may be in "namespace/name" format
 -- @return string, string? - name and optionally a namespace
@@ -373,6 +353,27 @@ function util.split_namespace(ns_name)
    return ns_name
 end
 
+--- Argparse action callback for namespaced rock arguments.
+function util.namespaced_name_action(args, target, ns_name)
+   assert(type(args) == "table")
+   assert(type(target) == "string")
+   assert(type(ns_name) == "string" or not ns_name)
+
+   if not ns_name then
+      return
+   end
+
+   if ns_name:match("%.rockspec$") or ns_name:match("%.rock$") then
+      args[target] = ns_name
+   else
+      local name, namespace = util.split_namespace(ns_name)
+      args[target] = name:lower()
+      if namespace then
+         args.namespace = namespace:lower()
+      end
+   end
+end
+
 function util.deep_copy(tbl)
    local copy = {}
    for k, v in pairs(tbl) do