Wednesday, 22 January 2014

Transfer files over netcat using Applescript

Hi,
    At my workplace me and one of my colleague used to transfer files like database dumps etc. for projects from one machine to another.
I came across netcat (nc command) and when we tried that it just worked so quickly, i got surprised with the speed with which it got transferred. :)
So i wrote applescript that transfers file using netcat, with dialog boxes.

after saving(netcat.scpt) this file to your machine just type in your terminal
osascript your_path/netcat.scpt
It will simplify your work to transfer file rather than remembering syntax for netcat 
  OR 
if you want more shortcut to do this you can add it to .bash_profile file
alias netcat='osascript your_path/netcat.scpt'

and then just type netcat in terminal.. enjoy :)

Tuesday, 7 January 2014

Ruby gem feature_flags new features (0.1.0)

Hi,
Back again with new features in ruby gem feature_flags (0.1.0).
Here is my blog post on old version of feature_flags . I recommend to go through it first if you haven't, to know more features available in this gem.

Memoization of features is the main change in this version and it really improved performance. Its much more fast now,

What's new  ????

1)  Added Memoization:
In previous versions, Everytime it fires sql query to check whether particular feature is enabled or not when we check
FeatureFlags.enabled?(:feature_name)
worrying about that ???? Now you need not to because it will fire sql query only when there are changes into database, and memoise it, and that optimizes it to great extent.

2) Check for multiple features at a time:
There may be situation when you need to check following scenario with multiple features,
if FeatureFlags.enabled?(:feature_name1) && FeatureFlags.enabled?(:feature_name2) && FeatureFlags.enabled?(:feature_name3)
  ## some code
else
  ## some code
end

 which really increases your code, So now you can do it in better ways
if FeatureFlags.enabled?([:feature_name1, :feature_name2, :feature_name3])
   ## some code
end
 So when you have more than one features to check simultaneously, pass them as array of feature names
 but if you have single feature to check then just write
  if FeatureFlags.enabled?(:feature_name)
    ## some code
  end
3) Another feature is that you can check if any of given features are active or not:
if FeatureFlags.enabled_any?([:feature_name1, :feature_name2, :feature_name3])
   ## some code
end
this will execute code inside if any of [:feature_name1, :feature_name2, :feature_name3] feature is active

4) UI changes:
  Do everything on single page (add, edit, enable, disable, remove)



If you are already using previous versions(<= 0.0.3) and want to migrate to this version (0.1.0) then, after updating gem version
just add following line to your model
  include FeatureFlags::FeatureBase
and generate views again..if you have already generated for new updated view
rails generate feature_flags:views
thats it n you are done.  :)

Here is demo http://feature-flags.herokuapp.com/