wader

class UserRenameAvatarToProfileRemoveAAddB < ActiveRecord::Migration
  # you may want to change these
  AttachmentColumns = [["file_name", :string], ["content_type", :string], ["file_size", :integer]]
  # make sure this matches your setup, also have a look in the rename and remove methods
  AttachmentPath = Rails.root.join("public", "system")

  def self.rename_attachment(table, old, new)
    AttachmentColumns.each do |suffix, type|
      rename_column table, "#{old}_#{suffix}", "#{new}_#{suffix}"
    end

wader

#!/bin/bash
# Output select query as insert statements
#
# Ex: insert all users from database1 into database2 but replace password with "dummy"
# ./mysqlselectdump username database1 "SELECT id, name, \"dummy\" as password FROM users" users password | mysql -u username -ppassword database2

USERNAME="$1"
DATABASE="$2"
QUERY="$3"
INSERTTABLE="$4"

wader

#!/bin/bash
# requires that you use "set :deploy_via, :remote_cache" in deploy.rb

while read oldrev newrev ref
do
        if [ "$ref" = "refs/heads/master" ] ; then
                echo "Master branch pushed, deploying to staging"
                # seams to be set to "." for hooks, unset to make things more normal
                unset GIT_DIR
                # deploy path, where "current", "releases", "shared" etc are

wader

# WARNING: don't just use this without testing!
# This is not a database migration but i think it's quite convenient to do as a migration
# multiple styles has not been tested but should work

class ChangeAttachmentPaths < ActiveRecord::Migration
  AttachmentPath = Rails.root.join("public", "system")

  def self.paperclip_change_path(table, column, old_opt, new_opt)
    model = table.to_s.classify.constantize

wader

// a bit hackish way of merging two wav files, assumes raw samples.

#import <Foundation/Foundation.h>

#define RIFF_ID 0x52494646 // "RIFF"
#define RIFF_FMT_ID 0x666d7420 // "fmt "
#define RIFF_DATA_ID 0x64617461 // "data"

typedef struct riffChunkHeader {
  UInt32 rsc_id; // big endian

wader

#!/usr/bin/env awk -f
# print class and instance methods declarations from implementation
# Usage: ./printmethods.awk class.m or awk -f printmethods.awk class.m

/^[[:space:]]*@implementation/ {
  implementation = 1;
}

/^[[:space:]]*@end/ {
  implementation = 0;

wader

#!/bin/bash

function check_file() {
  echo $1
  awk '
  /.*/ {
    if (inblock > 0) {
      collect = collect $0 "\n";
    }
    line = line + 1

wader

static NSUInteger binary_search_range_index(NSUInteger *positions,
                                            NSUInteger len,
                                            NSUInteger n) {
    NSInteger current = len / 2;
    NSUInteger delta = len / 2;
    
    while (!(n >= positions[current] &&
             (current == len-1 || n < positions[current+1]))) {
        delta = delta / 2;
        if (delta == 0) {

wader

@interface NSObject (classNameOfPropetyName)
- (Class)classOfPropetyName:(NSString *)propertyName;
@end
@implementation NSObject (classNameOfPropetyName)
- (Class)classOfPropetyName:(NSString *)propertyName {
    static NSRegularExpression *re = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        // T@"NSString",&,N,Vtest
        re = [[NSRegularExpression alloc] initWithPattern:@"@\"([^\"]*)\""

wader

@interface NSString (stringByResolvingCanonicalPath)
- (NSString *)stringByResolvingCanonicalPath;
@end

@implementation NSString (stringByResolvingCanonicalPath)
- (NSString *)stringByResolvingCanonicalPath {
    FSRef fsRef;
    
    if (FSPathMakeRef((UInt8 const *)[self UTF8String], &fsRef, NULL) != 0) {
        return nil;