Add 'lint' command, to check for rockspec validity.

2 files changed, 38 insertions, 0 deletions

diff --git a/src/bin/luarocks b/src/bin/luarocks
index 1397bbd0..e94d895f 100755
--- a/src/bin/luarocks
+++ b/src/bin/luarocks
@@ -19,5 +19,6 @@ commands.download = require("luarocks.download")
 commands.path = require("luarocks.path")
 commands.show = require("luarocks.show")
 commands.new_version = require("luarocks.new_version")
+commands.lint = require("luarocks.lint")
 
 command_line.run_command(...)
diff --git a/src/luarocks/lint.lua b/src/luarocks/lint.lua
new file mode 100644
index 00000000..63b549aa
--- /dev/null
+++ b/src/luarocks/lint.lua
@@ -0,0 +1,37 @@
+
+--- Module implementing the LuaRocks "lint" command.
+-- Utility function that checks syntax of the rockspec.
+module("luarocks.lint", package.seeall)
+
+local util = require("luarocks.util")
+local download = require("luarocks.download")
+local fetch = require("luarocks.fetch")
+
+help_summary = "Check syntax of a rockspec."
+help_arguments = "<rockspec>"
+help = [[
+This is a utility function that checks the syntax of a rockspec.
+
+It reports success or failure if the text of a rockspec is
+syntactically correct.
+]]
+
+function run(...)
+   local flags, input = util.parse_flags(...)
+   
+   local filename = input
+   if not input:match(".rockspec$") then
+      local err
+      filename, err = download.download("rockspec", input)
+      if not filename then
+         return nil, err
+      end
+   end
+
+   local rs, err = fetch.load_local_rockspec(filename)
+   if not rs then
+      return nil, "Failed loading rockspec: "..err
+   end
+
+   return true
+end