Gwik's corner

#! /bin/sh
#
# .git/hooks/post-checkout

BRANCH=`git symbolic-ref HEAD 2> /dev/null | sed -e 's/^.*\///'`
GITPATH="`git rev-parse --git-dir 2>/dev/null`/.."

if [ "$BRANCH" == "" ]; then
        echo "no branch name. do nothing"
        exit 0
fi

if [ -f "$GITPATH/config/database.yml" ] && [ ! -L "$GITPATH/config/database.yml" ]; then
        echo "database.yml exists and not a symlink. do nothing."
        exit 0
fi

echo "look for $GITPATH/config/database.$BRANCH.yml"

if [ -f "$GITPATH/config/database.$BRANCH.yml" ]; then
        echo "switch database configuration file to config/database.$BRANCH.yml"
        rm -f "$GITPATH/config/database.yml";
        ln -s "$GITPATH/config/database.$BRANCH.yml" \
        "$GITPATH/config/database.yml"
fi
 

sudo port install git-core +svn

daiquiri% git svn init https://repos.../trunk
Initialized empty Git repository in .git/

svn info https://repos.../trunk

git-svn fetch -r3741
.
.
...The checkout happens...
.
.
r3741 = b444a88efc7248dfdd5f96a7dd7e36165a0f3ed6 (git-svn)
Checking 4130 files out...
 100% (4130/4130) done
Checked out HEAD:
  https://82.240.32.108/svn/eco-sys/trunk r3741

git config --global user.name "Antonin Amand"
git config --global user.email "aamand@gwikzone.org"
git config --global color.status auto
git config --global color.diff auto                                             
git config --global color.diff auto
git config --global color.branch auto
git config --global merge.tool opendiff
git config --global core.excludesfile ~/.gitignore
echo ".DS_Store" >> ~/.gitignore
cat > ~/.gitk <<EOF
set mainfont {Monaco 10}
set textfont {Monaco 10}
set uifont {Monaco 10}
EOF

git checkout -b localconfig HEAD

git add mymodifiedfile
git add ...
git commit

git commit -a

git svn rebase

git format-patch remotes/git-svn

svn copy http://repos/trunch http://repos/branches/merge-branch
svn checkout http://repos/branches/merge-branch
cd merge-branch

patch -p1 < /path/to/thepatch

svn commit

require 'rubygems'
require 'active_record'

db = "my_database"

sqlconn = ActiveRecord::Base.establish_connection(
  :adapter  => "mysql", 
  :host     => "localhost", 
  :username => "root", 
  :password => "", 
  :database => db
)

conn = ActiveRecord::Base.send(sqlconn.adapter_method,sqlconn.config)

conn.tables.each do |table|
    q = "ALTER TABLE #{table} CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci"
    puts q
    conn.execute q
end 
conn.execute("ALTER DATABASE #{db} DEFAULT CHARACTER SET utf8 ;")

class Contact < ActiveRecord::Base 

 order_by :fields => ['last_name', 'first_name'], :mode => :desc

end

require 'net/http'

# the class is supposed to have a "media" attribute
# that is a relative url to a ressource hosted an a different
# website
class Article < ActiveRecord::Base

  RESOURCE_HOST = "flickr.com"
  RESOURCE_PORT = 80

  validate :validates_presence_of_external_media

  protected

  def validates_presence_of_external_media
    response = nil
    # initiating the HTTP connection
    Net::HTTP.start(RESOURCE_HOST, RESOURCE_PORT) do |http|
      # doing the HEAD request
      response = http.head(media)
    end
    # add an error if the request is not successful
    errors.add :media, "ressource unavailable : #{response.code} #{response.msg}" unless
      responce.kind_of?(Net::HTTPSuccess)
  end

end

$ sudo gem install mongrel mongrel_cluster

$ sudo port install apache2

$ cd /opt/local/apache2/conf
$ sudo cp httpd.conf.sample httpd.conf

$ sudo mkdir myapp
$ cd myapp

$ sudo touch myapp.common myapp.conf myapp.cluster.conf

  ServerName www.myserver.com  
  DocumentRoot /path/to/my/app/public

  <Directory "/path/to/my/app/public">
    Options FollowSymLinks
    AllowOverride None
    Order allow,deny
    Allow from all
  </Directory>

  RewriteEngine On

  # Make sure people go to www.myapp.com, not myapp.com
  RewriteCond %{HTTP_HOST} ^myapp.com$ [NC]
  RewriteRule ^(.*)$ http://www.myapp.com$1 [R=301,L]
  # Yes, I've read no-www.com, but my site already has much Google-Fu on
  # www.blah.com. Feel free to comment this out.

  # Uncomment for rewrite debugging
  #RewriteLog logs/myapp_rewrite_log
  #RewriteLogLevel 9 

  # Check for maintenance file and redirect all requests
  RewriteCond %{DOCUMENT_ROOT}/system/maintenance.html -f
  RewriteCond %{SCRIPT_FILENAME} !maintenance.html
  RewriteRule ^.*$ /system/maintenance.html [L]

  # Rewrite index to check for static
  RewriteRule ^/$ /index.html [QSA] 

  # Rewrite to check for Rails cached page
  RewriteRule ^([^.]+)$ $1.html [QSA]

  # Redirect all non-static requests to cluster
  RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-f
  RewriteRule ^/(.*)$ balancer://mongrel_cluster%{REQUEST_URI} [P,QSA,L]

  # Deflate
  AddOutputFilterByType DEFLATE text/html text/plain text/xml application/xml application/xhtml+xml text/javascript text/css
  BrowserMatch ^Mozilla/4 gzip-only-text/html
  BrowserMatch ^Mozilla/4.0[678] no-gzip
  BrowserMatch bMSIE !no-gzip !gzip-only-text/html

  # Uncomment for deflate debugging
  #DeflateFilterNote Input input_info
  #DeflateFilterNote Output output_info
  #DeflateFilterNote Ratio ratio_info
  #LogFormat '"%r" %{output_info}n/%{input_info}n (%{ratio_info}n%%)' deflate
  #CustomLog logs/myapp_deflate_log deflate

<VirtualHost *:80>
  Include /opt/local/apache2/conf/myapp/myapp.common

  ErrorLog /path/to/logs/error.log
  CustomLog /path/to/logs/access.log combined
</VirtualHost>

<Proxy balancer://mongrel_cluster>
  BalancerMember http://127.0.0.1:8000
  BalancerMember http://127.0.0.1:8001
  BalancerMember http://127.0.0.1:8002
</Proxy>

NameVirtualHost *:80

Include conf/myapp/myapp.conf
Include conf/sites/myapp.cluster.conf

mkdir /opt/local/etc/mongrel
cd /opt/local/etc/mongrel

--- 
user: www
group: www
port: "8000"
cwd: /path/to/your/app/root
environment: production
address: 127.0.0.1
pid_file: log/mongrel.pid
servers: 3

$ sudo vi /etc/hostconfig

#add the following lines

APACHE2=-YES-
MONGREL=-YES-

#!/bin/bash
#
# Copyright (c) 2006 Bradley Taylor, bradley@railsmachine.com
#
# mongrel_cluster       Startup script for Mongrel clusters.
#
# chkconfig: - 85 15
# description: mongrel_cluster manages multiple Mongrel processes for use \
#              behind a load balancer.
#              

[ -r "/etc/hostconfig" ] && . "/etc/hostconfig"

CONF_DIR="/opt/local/etc/mongrel"
RETVAL=0
ENABLE_FLAG=${MONGREL:=-NO-}

if [ "${ENABLE_FLAG}" = "-NO-" ]; then
        echo "Mongrel is disabled. see /etc/hostconfig"
        exit 0
fi

case "$1" in
    start)
      mongrel_cluster_ctl start -c $CONF_DIR
      RETVAL=$?
  ;;
    stop)
      mongrel_cluster_ctl stop -c $CONF_DIR
      RETVAL=$?
  ;;
    restart)
      mongrel_cluster_ctl restart -c $CONF_DIR
      RETVAL=$?
  ;;
    *)
      echo "Usage: mongrel_cluster {start|stop|restart}"
      exit 1
  ;;
esac      

exit $RETVAL

class Contact < ActiveRecord:Base

  def Contact.find(*args)
    if args[1] 
      args[1][:order] = "last_name, first_name" if args[1].is_a?(Hash) && !args[1][:order]
    else
      args[1] = {:order => "last_name, first_name"}
    end
    super(*args)
  end

end