How to clone a single branch in git?

How to clone a single branch in git?
I have a local git repository called 'skeleton' that I use for storing project skeletons. It has a few branches, for different kinds of projects:
casey@agave [~/Projects/skeleton] git branch
* master
  rails
  c
  c++



git clone user@git-server:project_name.git -b branch_name /some/folder

pdfkit command failed: “/usr/bin/wkhtmltopdf” “--page-size” “Letter” “… ”--quiet“ ”-“ ”-"

Error:

  Create PDF Error :
 
  RuntimeError (command failed: "/home/ubuntu/.rvm/gems/ruby-1.9.3-p392@xxx/bin/wkhtmltopdf" "--page-size" "Letter" "--margin-top" "0.75in" "--margin-right" "0.75in" "--margin-bottom" "0.75in" "--margin-left" "0.75in" "--encoding" "UTF-8" "--quiet" "-" "-")

Solution:


 (1)  first, installing dependencies
 $sudo aptitude install openssl build-essential xorg libssl-dev

(2) for 64bits OS Run one by one following commands.

$sudo wget http://wkhtmltopdf.googlecode.com/files/wkhtmltopdf-0.9.9-static-amd64.tar.bz2
$sudo tar xvjf wkhtmltopdf-0.9.9-static-amd64.tar.bz2
$sudo mv wkhtmltopdf-amd64 /usr/local/bin/wkhtmltopdf
$sudo chmod +x /usr/local/bin/wkhtmltopdf

Finally Go to your rails app/config/initializer Folder and create new file pdfkit.rb and paste following code in it.

PDFKit.configure do |config|
   config.wkhtmltopdf = '/usr/local/bin/wkhtmltopdf' if Rails.env.production?
end


 I refer generating-pdfs-in-rails-with-pdfkit-and-deploying-to-a-server link

How to resolve jcode (LoadError) with contacts gem in rails 3? change line 21 to:

Ruby >= 1.9 doesn't have jcode, a module to handle japanese (EUC/SJIS) strings, as it supports unicode natively.

So you will need to add: require 'jcode' if RUBY_VERSION < '1.9' to your gdata gem found under your .rvm directory somewhere similar to this:

/home/.rvm/gems/ruby-1.9.2-p0@your_gemset_name/gems/gdata-1.1.1/lib/gdata.rb

change line 21 to:



if RUBY_VERSION < '1.9'  require 'jcode'  $KCODE = 'UTF8'end

How to clone a single branch in git?branch_name

I have a local git repository. has a few branches, for different kinds of projects:

open terminal

   # cd  /home/project path
         
                git branch
             * master
                rails
                dev
 


Solution:

           git clone user@git-server:project_name.git  -b branch_name      /some/folder

how to run a scheduler.rake file in rails?

If you don't see your command in the response list then it is not well formed or just does not have description. So you need to investigate your rake file. Rake tasks files have similar structure, like:

namespace :some_task do

  task :do_some_work => :environment do
    # Code goes here
  end

  desc 'Do some other work'
  task :do_something => :environment do
    # Code goes here
  end

end

#first task
rake some_task:do_some_work

#second task
rake some_task:do_something

Sometimes there could be no namespace and then tasks could be executed just using rake command and name of the task as first argument.

ruby installation is missing psych (for yaml output).

Problem it seems your ruby installation is missing psyh (for yaml output).centos solution curl -O http://www6.atomicorp.com/channels/atomic/centos/6/x86_64/RPMS/atomic-release-1.0-14.el6.art.noarch.rpm sudo rpm -Uvh atomic-release-1.0-14.el6.art.noarch.rpm sudo yum install libyaml-devel rvm reinstall 1.9.3-p194

gem MySQL installation

Gem:gem mysql install 

Well,we have the solution for you. Your Linux installation requires that the development libraries for MySQL to be installed in order to build the gem.  but sometimes   attempting to install the MySQL gem and you are receiving this error?

ERROR:

Fetching: mysql-2.9.1.gem (100%)

Building native extensions.  This could take a while...

ERROR:  Error installing mysql:

ERROR: Failed to build gem native extension.

/usr/bin/ruby1.8 extconf.rb

checking for mysql_query() in -lmysqlclient... no

checking for main() in -lm... yes

checking for mysql_query() in -lmysqlclient... no

checking for main() in -lz... yes

checking for mysql_query() in -lmysqlclient... no

checking for main() in -lsocket... no

checking for mysql_query() in -lmysqlclient... no

checking for main() in -lnsl... yes

checking for mysql_query() in -lmysqlclient... no

checking for main() in -lmygcc... no

checking for mysql_query() in -lmysqlclient... no

*** extconf.rb failed ***

Could not create Makefile due to some reason, probably lack of

necessary libraries and/or headers.  Check the mkmf.log file for more

details.  You may need configuration options.

Provided configuration options:

--with-opt-dir

--without-opt-dir

--with-opt-include

--without-opt-include=${opt-dir}/include

--with-opt-lib

--without-opt-lib=${opt-dir}/lib

--with-make-prog

--without-make-prog

--srcdir=.

--curdir

--ruby=/usr/bin/ruby1.8

--with-mysql-config

--without-mysql-config

--with-mysql-dir

--without-mysql-dir

--with-mysql-include

--without-mysql-include=${mysql-dir}/include

--with-mysql-lib

--without-mysql-lib=${mysql-dir}/lib

--with-mysqlclientlib

--without-mysqlclientlib

--with-mlib

--without-mlib

--with-mysqlclientlib

--without-mysqlclientlib

--with-zlib

--without-zlib

--with-mysqlclientlib

--without-mysqlclientlib

--with-socketlib

-- .......................
       --.........................

Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/mysql-2.9.1 for inspection.

Results logged to /usr/lib/ruby/gems/1.8/gems/mysql-2.9.1/ext/mysql_api/gem_make.out

Here is the proper way for install this gem:

SOLUTION:

               sudo apt-get install libmysql-ruby
                      sudo apt-get install libmysqlclient-dev

                      sudo gem install mysql