errors and warnings to stderr

diff --git a/client.coffee b/client.coffee
index 8ae4715..ccb26b3 100755 (executable)
--- a/client.coffee
+++ b/client.coffee
@@ -68,7 +68,7 @@ login = (callback) ->
                        # wait for file write so there's no race condition if get_token gets called soon
                        fs.writeFile token_file, token, (err) ->
                                if err
-                                       console.log "Warning: couldn't cache auth token in #{token_file}: ", err
+                                       process.stderr.write "Warning: couldn't cache auth token in #{token_file}: #{err}\n"
                                # don't pass on error, it's ok if we can't cache it
                                callback null, token
        ], callback
@@ -78,10 +78,10 @@ exports.new_session = ->
        return new Session()
 
 usage = ->
-       console.log "usage: #{process.argv[0]} #{process.argv[1]} command [args...]"
-       console.log "valid commands are:"
+       process.stderr.write "usage: #{process.argv[0]} #{process.argv[1]} command [args...]\n"
+       process.stderr.write "valid commands are:\n"
        for k, v of af
-               console.log "\t#{k}" unless k is 'login'
+               process.stderr.write "\t#{k}\n" unless k is 'login'
 
 # parse and act on commandline arguments unless we were require()d as a module
 if require.main is module
@@ -89,12 +89,15 @@ if require.main is module
        if args.length is 0
                usage()
        else if not af[args[0]]
-               console.log "unknown command \"#{args[0]}\""
+               process.stderr.write "unknown command \"#{args[0]}\"\n"
                usage()
        else
                session = new Session()
                session.api args[0], args[1..], (err, result) ->
                        if err?
-                               console.log "error: ", err
+                               process.stderr.write "Error: #{JSON.stringify err}\n"
                        if result?
-                               console.log "result: ", result
+                               if typeof result is 'string'
+                                       process.stdout.write result
+                               else
+                                       process.stdout.write JSON.stringify result