gc

Update

bootstrap.md

@@ -57,6 +57,9 @@ Max:
         .modal-content
           .modal-header
             %h4.modal-title hello
+            %button.close{type: 'button', data: { dismiss: 'modal' }}
+              %span{'aria-hidden' => true}!= "×"
+              %span.sr-only Close
           .modal-body
             ...
           .modal-footer

capybara.md

@@ -15,14 +15,25 @@ layout: default
 
 ## Interacting with forms
 
-    attach_file
+    attach_file 'Image', '/path/to/image.jpg'
-    fill_in 'First Name', :with => 'John'
+    fill_in 'First Name', with: 'John'
-    check
+
-    uncheck
+    check 'A checkbox'
-    choose
+    uncheck 'A checkbox'
-    select
+
+    choose 'A radio button'
+
+    select 'Option', from: 'Select box'
     unselect
 
+## Limiting
+
+    within '.classname' do
+      click '...'
+    end
+
+    within_fieldset :id do ... end
+
 ## Querying
 
 Takes a CSS selector (or XPath if you're into that).

ffmpeg.md

@@ -35,13 +35,13 @@ layout: default
 ### To web
 
     # no audio
-    ffmpeg -i input.mov -vcodec h264 -acodec null -strict -2 output.mp4
+    ffmpeg -i input.mov -vcodec h264   -an -strict -2 output.mp4
-    ffmpeg -i input.mov -vcodec libvpx -acodec null output.webm
+    ffmpeg -i input.mov -vcodec libvpx -an output.webm
 
     ffmpeg -i input.mov -vcodec h264 -acodec aac -strict -2 output.mp4
     ffmpeg -i input.mov -vcodec libvpx -acodec libvorbis output.webm
 
     <video width="320" height="240" controls>
-      <source src="movie.mp4"></source>
+      <source src="movie.mp4" type='video/mp4'></source>
-      <source src="movie.webm"></source>
+      <source src="movie.webm" type='video/ogg'></source>
     </video>

js-date.md

@@ -0,0 +1,63 @@
+---
+title: JavaScript Date
+layout: default
+---
+
+### Constructor
+
+```js
+new Date()
+new Date(1419785527580)
+new Date("December 17, 1995 03:24:00")
+new Date("2013-03-01T01:10:00")
+new Date(2014, 2,     1,   13,  0,     59, 0)
+      // year  month* day  hour minute sec milli
+      // * = zero-indexed
+```
+
+### Getters
+
+```js
+.getDate()     //=> 1..31
+.getDay()      //=> 0..6 (sun..sat)
+.getFullYear() //=> 2014
+.getMonth()    //=> 0..11
+
+.getHours()
+.getMinutes()
+.getSeconds()
+.getMilliseconds()
+
+.getTime()     //=> ms since epoch
+.getTimezoneOffset()
+```
+
+### Conversion
+
+```js
+.toString()           //=> "Mon Dec 29 2014 00:58:28 GMT+0800 (PHT)"
+.toTimeString()       //=> "00:58:46 GMT+0800 (PHT)"
+.toUTCString()        //=> ""Sun, 28 Dec 2014 16:58:59 GMT"
+
+.toDateString()       //=> "Thu Jan 10 2013"
+.toISOString()        //=> "2013-01-09T16:00:00.000Z"
+.toLocaleString()     //=> "12/29/2014, 12:57:31 AM"
+.toLocaleTimeString() //=> "12:57:31 AM"
+```
+### Setters
+
+```js
+.setDate()
+.setFullYear()
+.setHours()
+// ...etc; see getters
+```
+
+### UTC getters
+
+```js
+.getUTCDate()
+.getUTCDay()
+.getUTCMonth()
+// ...etc; see getters
+```

rails-i18n.md

@@ -38,7 +38,16 @@ layout: default
 
 ### ActiveRecord
 
-    activerecord.attributes.user.name
+    activerecord:
+      attributes:
+        user:
+          name: "Name"
+      errors:
+        models:
+          venue:
+            attributes:
+              name:
+                blank: "Please enter a name."
 
     t 'blank', scope:
       activerecord.errors.models.[model_name].attributes.[attribute_name]
@@ -51,8 +60,6 @@ layout: default
       create: "Create a %{model}"
       update: "Update %{model}"
 
-    activerecord.errors.models.venue.attributes.name.blank = "Please enter a name."
-
     confirmation - :confirmation
     acceptance   - :accepted
     presence     - :blank

rails-migrations.md

@@ -12,7 +12,7 @@ layout: default
 
     $ rake db:migrate
 
-### Migrations
+### Creating tables
 
     create_table :users do |t|
       t.string :name
@@ -40,13 +40,24 @@ layout: default
 
 ### Operations
 
+    add_column    :users, :first_name, :string
+    remove_column :users, :first_name, :string
+
+    change_column :users, :first_name, :text
+    change_column :users, :first_name, :text
+
+    change_column_default :users, :admin, nil
+    change_column_null    :users, :email, true  # adds NOT NULL constraint
+
     create_table
     change_table
     drop_table
+
     add_column
     change_column
     rename_column
     remove_column
+
     add_index
     remove_index
 
@@ -72,20 +83,10 @@ layout: default
     # Can have different types
     t.references :category, polymorphic: true
 
-### Add/remove columns
+### Auto-Add/remove columns
   
     $ rails generate migration RemovePartNumberFromProducts part_number:string
 
-    class RemovePartNumberFromProducts < ActiveRecord::Migration
-      def up
-        remove_column :products, :part_number
-      end
-     
-      def down
-        add_column :products, :part_number, :string
-      end
-    end
-
 ### Indices
 
     # Simple

rails-models.md

@@ -124,59 +124,51 @@ Validation
 
     class Person < ActiveRecord::Base
 
-      # Non empty
+      validates :name,     presence: true
-      validates :name, :presence => true
 
-      # Checkboxes
+      validates :terms,    acceptance: true
-      validates :terms_of_service, :acceptance => true
+
+      validates :email,    confirmation: true
+
+      validates :slug,     uniqueness: true
+      validates :slug,     uniqueness: { case_sensitive: false }
+      validates :holiday,  uniqueness: { scope: :year, :message => "only once a year" }
+
+      validates :code,     format: /regex/
+      validates :code,     format: { with: /regex/ }
+
+      validates :name,     length: { minimum: 2 }
+      validates :bio,      length: { maximum: 500 }
+      validates :password, length: { in => 6..20 }
+      validates :number,   length: { is => 6 }
+
+      validates :gender,   inclusion: %w(male female)
+      validates :gender,   inclusion: { in: %w(male female) }
+      validates :lol,      exclusion: %w(xyz)
+
+      validates :points,   numericality: true
+      validates :played,   numericality: { only_integer: true }
 
       # Validate the associated records to ensure they're valid as well
       has_many :books
       validates_associated :books
 
-      # Confirmation (like passwords)
-      validates :email, :confirmation => true
-
-      # Unique
-      validates :slug, :uniqueness => true
-      validates :slug, :uniqueness => { :case_sensitive => false }
-      validates :holiday, :uniqueness => { :scope => :year, :message => "only once a year" }
-
-      # Format
-      validates :legacy_code, :format => {
-        :with    => /\A[a-zA-Z]+\z/,
-        :message => "Only letters allowed"
-      }
-
-      # Length
-      validates :name,     :length => { :minimum => 2 }
-      validates :bio,      :length => { :maximum => 500 }
-      validates :password, :length => { :in => 6..20 }
-      validates :number,   :length => { :is => 6 }
-
       # Length (full enchalada)
-      validates :content, :length => {
+      validates :content, length: {
-        :minimum   => 300,
+        minimum:   300,
-        :maximum   => 400,
+        maximum:   400,
-        :tokenizer => lambda { |str| str.scan(/\w+/) },
+        tokenizer: lambda { |str| str.scan(/\w+/) },
-        :too_short => "must have at least %{count} words",
+        too_short: "must have at least %{count} words",
-        :too_long  => "must have at most %{count} words"
+        too_long:  "must have at most %{count} words" }
-      }
-    end
-
-      # Numeric
-      validates :points,       :numericality => true
-      validates :games_played, :numericality => { :only_integer => true }
 
       # Multiple
-      validates :login, :email, :presence => true
+      validates :login, :email, presence: true
 
       # Conditional
-      validates :description, :presence => true, :if => :published?
+      validates :description, presence: true, if: :published?
-      validates :description, :presence => true, :if => lambda { |obj| .. }
+      validates :description, presence: true, if: lambda { |obj| .. }
 
-      # On
+      validates :title, presence: true, on: :save   # :save | :create | :update
-      validates :title, :presence => true, :on => :save   # :save | :create | :update
     end
 
 ### Custom validations
@@ -239,6 +231,11 @@ API
     Student.joins(:schools).where(:schools => { :type => 'public' })
     Student.joins(:schools).where('schools.type' => 'public' )
 
+### Where interpolation
+
+    where("name = ?", "John")
+    where(["name = :name", { name: "John" }])
+
 ### Serialize
 
     class User < ActiveRecord::Base

sed.md

@@ -15,3 +15,14 @@ To do in place replacements `-i ''` is required (GNU/sed is different)
 To do in place replacements use `-i` without arg
 
     sed -i -e 's/foo/bar/' example.md
+
+### Yes
+
+
+Print until a certain line is met
+
+    sed '/begin api/q'
+
+Print everything after a given line
+
+    sed -n '/end api/,$p'

travis-gh-pages.md

@@ -0,0 +1,56 @@
+---
+title: Travis: deploy gh-pages
+layout: default
+---
+
+Taken from https://medium.com/@nthgergo/publishing-gh-pages-with-travis-ci-53a8270e87db
+
+### Create an OAuth token and encrypt it
+
+Use https://github.com/settings/tokens/new
+
+```sh
+# via node
+npm install travis-encrypt -g
+travis-encrypt -r user/repo GH_TOKEN=[the token here]
+
+# via ruby
+gem install travis
+travis encrypt -r user/repo GH_TOKEN=[the token here]
+```
+
+### Make it run the deploy script on deploy
+
+```
+ # .travis.yml
+script:
+  - bash ./scripts/deploy-to-gh-pages.sh
+env:
+  global:
+    - GH_REF: "github.com/user/repo.git"
+    - secure: "nlnXJW/imf/w..."
+```
+
+### Write deployer
+
+Create the file `scripts/deploy-to-gh-pages.sh`
+
+```
+#!/bin/bash
+# See https://medium.com/@nthgergo/publishing-gh-pages-with-travis-ci-53a8270e87db
+
+if [ "$TRAVIS_PULL_REQUEST" != "false" -o "$TRAVIS_BRANCH" != "master" ]; then exit 0; fi
+rm -rf out || exit 0
+mkdir out
+
+# build
+node build.js
+
+# deploy
+( cd out
+  git init
+  git add .
+  git commit -m "Deploy to Github Pages" --author "Travis CI <nobody@nobody.org>"
+  git push --force --quiet "https://${GH_TOKEN}@${GH_REF}" master:gh-pages > /dev/null 2>&1
+)
+```

unite.md

@@ -1,22 +0,0 @@
----
-title: Unite
-layout: default
----
-
-### Usage
-
-    :Unite file
-    :Unite file_rec/async:!
-    :Unite tag
-    :Unite buffer
-
-### Options
-
-- `-start-insert`
-- `-no-quit`
-- `-winheight=10`
-- `-quick-match`   -  select by pressing asdf keys
-- `-winwidth=40`   -  use with vertical
-- `-no-split`      -  open in current buffer
-- `-auto-preview`  -  great for outline
-- `-vertical`      -  open as sidebar

vim-unite.md

@@ -0,0 +1,36 @@
+---
+title: Vim-Unite
+layout: default
+---
+
+### Usage
+
+    :Unite file
+    :Unite file_rec/async:!
+    :Unite tag
+    :Unite buffer
+
+### Sources
+
+- `file/new`
+- `file/async`
+- `file_rec/async`
+- `file_rec/git`
+- `buffer`
+- `buffer_tab` (current tab only)
+- `tab`
+- `register`
+- `bookmark`
+- `source`
+
+### Options
+
+- `-start-insert`
+- `-no-quit`
+- `-winheight=10`
+- `-quick-match`   - select by pressing asdf keys
+- `-winwidth=40`   - use with vertical
+- `-no-split`      - open in current buffer
+- `-auto-preview`  - great for outline
+- `-vertical`      - open as sidebar
+- `-here`          - in this buffer

vim.md

@@ -59,18 +59,26 @@ Folds
 
     zx      # Update
 
+Jumping
+-------
+
+    ^O      # Go back to previous location
+    ^I      # Go forward
+
 Misc
 ----
 
     .       # repeat last command
     ]p      # paste under the current indentation level
 
-    C-o     # Go back to previous location
-    C-i     # Go forward
-    C-t     # Go back to last tag
-
     zz      # Center this line
 
+Counters
+--------
+
+    ^A      # increment number
+    ^X      # decrement
+
 Windows
 -------
 
@@ -81,6 +89,7 @@ Tags
 
     ^]      # Jump to definition
     g]      # See all definitions
+    C-t     # Go back to last tag
     ^O ^I   # Back/forward
 
     :tselect Classname  # Find definitions of Classname
@@ -97,70 +106,3 @@ Marks
 ### Calculator
 
     (Insert mode) <C-r>=128/2
-
-### Highlights
-
-    hi Comment
-      term=bold,underline
-      gui=bold
-      ctermfg=4
-      guifg=#80a0ff
-
-### Filetype detection
-
-    augroup filetypedetect
-      au! BufNewFile,BufRead *.json setf javascript
-    augroup END
-
-    au Filetype markdown setlocal spell
-
-### Conceal
-
-    set conceallevel=2
-    syn match newLine "<br>" conceal cchar=}
-    hi newLine guifg=green
-
-### Region conceal
-
-    syn region inBold concealends matchgroup=bTag start="<b>" end="</b>"
-    hi inBold gui=bold
-    hi bTag guifg=blue
-
-### Syntax
-
-    syn match :name ":regex" :flags
-
-    syn region Comment  start="/\*"  end="\*/"
-    syn region String   start=+"+    end=+"+	 skip=+\\"+
-
-    syn cluster :name contains=:n1,:n2,:n3...
-
-    flags:
-      keepend
-      oneline
-      nextgroup=
-      contains=
-      contained
-
-    hi def link markdownH1 htmlH1
-
-### Mapping
-
-    nnoremap
-    vmap
-    ...
-
-Components:
-
-    [nvixso](nore)map
-     ^       ^
-     |       don't recurse
-     |
-     normal, visual, insert, eX mode, select, operator-pending
-
-Arguments:
-
-- `<buffer>` - only in current buffer
-- `<silent>` - no echo
-- `<nowait>`
-

vimscript.md

@@ -0,0 +1,92 @@
+---
+title: vimscript
+layout: default
+---
+
+Mapping
+-------
+
+    nnoremap
+    vmap
+    ...
+
+Components:
+
+    [nvixso](nore)map
+     ^       ^
+     |       don't recurse
+     |
+     normal, visual, insert, eX mode, select, operator-pending
+
+Arguments:
+
+- `<buffer>` - only in current buffer
+- `<silent>` - no echo
+- `<nowait>`
+
+Stuff
+-----
+
+    let var = "hello"
+    echo "var = " . var
+
+Functions
+---------
+
+    has("feature")  " :h feature-list
+    executable("python")
+    globpath(&rtp, "syntax/c.vim")
+
+    if getchar() == "\<LeftMouse>"
+    endif
+
+    exe "vsplit"
+
+Syntax
+------
+
+### Highlights
+
+    hi Comment
+      term=bold,underline
+      gui=bold
+      ctermfg=4
+      guifg=#80a0ff
+
+### Filetype detection
+
+    augroup filetypedetect
+      au! BufNewFile,BufRead *.json setf javascript
+    augroup END
+
+    au Filetype markdown setlocal spell
+
+### Conceal
+
+    set conceallevel=2
+    syn match newLine "<br>" conceal cchar=}
+    hi newLine guifg=green
+
+### Region conceal
+
+    syn region inBold concealends matchgroup=bTag start="<b>" end="</b>"
+    hi inBold gui=bold
+    hi bTag guifg=blue
+
+### Syntax
+
+    syn match :name ":regex" :flags
+
+    syn region Comment  start="/\*"  end="\*/"
+    syn region String   start=+"+    end=+"+	 skip=+\\"+
+
+    syn cluster :name contains=:n1,:n2,:n3...
+
+    flags:
+      keepend
+      oneline
+      nextgroup=
+      contains=
+      contained
+
+    hi def link markdownH1 htmlH1