Module: Cheat
- Extended by:
- Cheat
- Includes:
- Pager
- Included in:
- Cheat
- Defined in:
- lib/cheat.rb,
lib/cheat/diffr.rb,
lib/cheat/version.rb
Defined Under Namespace
Modules: Controllers, Helpers, Models, Views
Classes: Diffr
Constant Summary
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- HOST =
ARGV.include?('debug') ? 'localhost' : 'cheat.errtheblog.com'
- PORT =
ARGV.include?('debug') ? 3001 : 80
- SUFFIX =
''
- VERSION =
"1.3.2"
Class Method Summary
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Instance Method Summary
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Class Method Details
.create ⇒ Object
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# File 'lib/cheat/site.rb', line 592
def Cheat.create
Cheat::Models.create_schema
end
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Instance Method Details
#add(title) ⇒ Object
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# File 'lib/cheat.rb', line 153
def add(title)
body = write_to_tempfile(title)
res = post_sheet(title, body, true)
check_errors(res, title, body)
end
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#cache_dir ⇒ Object
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# File 'lib/cheat.rb', line 193
def cache_dir
mswin? ? win32_cache_dir : File.join(File.expand_path("~"), ".cheat")
end
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#cache_file ⇒ Object
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# File 'lib/cheat.rb', line 95
def cache_file
"#{cache_dir}/#{@sheet}.yml" if cache_dir
end
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#cheat_uri ⇒ Object
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# File 'lib/cheat.rb', line 103
def cheat_uri
"#{HOST}:#{PORT}#{SUFFIX}"
end
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#check_errors(result, title, text) ⇒ Object
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# File 'lib/cheat.rb', line 178
def check_errors(result, title, text)
if result.body =~ /<p class="error">(.+?)<\/p>/m
puts $1.gsub(/\n/, '').gsub(/<.+?>/, '').squeeze(' ').wrap(80)
puts
puts "Here's what you wrote, so it isn't lost in the void:"
puts text
else
puts "Success! Try it!", "$ cheat #{title}"
end
end
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#clear_cache ⇒ Object
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# File 'lib/cheat.rb', line 207
def clear_cache
FileUtils.rm_rf(cache_dir) if cache_dir
end
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#clear_cache_file ⇒ Object
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# File 'lib/cheat.rb', line 211
def clear_cache_file
FileUtils.rm(cache_file) if File.exists?(cache_file)
end
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#diff_sheets(sheet, version) ⇒ Object
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# File 'lib/cheat.rb', line 78
def diff_sheets(sheet, version)
return unless version =~ /^(\d+)(:(\d+))?$/
old_version, new_version = $1, $3
uri = "http://#{cheat_uri}/d/#{sheet}/#{old_version}"
uri += "/#{new_version}" if new_version
fetch_sheet(uri, false)
end
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#edit(sheet_yaml) ⇒ Object
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# File 'lib/cheat.rb', line 144
def edit(sheet_yaml)
sheet = YAML.load(sheet_yaml).to_a.first
sheet[-1] = sheet.last.gsub("\r", '')
body, title = write_to_tempfile(*sheet), sheet.first
return if body.strip == sheet.last.strip
res = post_sheet(title, body)
check_errors(res, title, body)
end
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#editor ⇒ Object
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# File 'lib/cheat.rb', line 189
def editor
ENV['VISUAL'] || ENV['EDITOR'] || "vim"
end
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#execute(sheet_yaml) ⇒ Object
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# File 'lib/cheat.rb', line 107
def execute(sheet_yaml)
sheet_body = YAML.load(sheet_yaml).to_a.flatten.last
puts "\n " + sheet_body.gsub("\r",'').gsub("\n", "\n ").wrap
puts "\nWould you like to execute the above sheet? (Y/N)"
answer = STDIN.gets
case answer.chomp
when "Y" then system YAML.load(sheet_yaml).to_a.flatten.last
when "N" then puts "Not executing sheet."
else
puts "Must be Y or N!"
end
rescue Errno::EPIPE
rescue
puts "That didn't work. Maybe try `$ cheat cheat' for help?" end
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#fetch_sheet(uri, try_to_cache = true) ⇒ Object
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# File 'lib/cheat.rb', line 36
def fetch_sheet(uri, try_to_cache = true)
open(uri, ) do |body|
sheet = body.read
FileUtils.mkdir_p(cache_dir) unless File.exists?(cache_dir)
File.open(cache_file, 'w') { |f| f.write(sheet) } if try_to_cache && has_content(sheet) && cache_file && !@edit
@edit ? edit(sheet) : show(sheet)
end
exit
rescue OpenURI::HTTPError => e
puts "Whoa, some kind of Internets error!", "=> #{e} from #{uri}"
end
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#has_content(sheet) ⇒ Object
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# File 'lib/cheat.rb', line 88
def has_content(sheet)
if sheet.is_a?(String)
return (sheet.length > 15) && !sheet[0,14].include?("Error!")
end
return true
end
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# File 'lib/cheat.rb', line 99
def
{ 'User-Agent' => 'cheat!', 'Accept' => 'text/yaml' }
end
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#parse_args(args) ⇒ Object
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# File 'lib/cheat.rb', line 48
def parse_args(args)
puts "Looking for help? Try http://cheat.errtheblog.com or `$ cheat cheat'" and return if args.empty?
if args.delete('--clear-cache') || args.delete('--new')
clear_cache
return if args.empty?
end
if i = args.index('--diff')
diff_sheets(args.first, args[i+1])
end
show_versions(args.first) if args.delete('--versions')
add(args.shift) and return if args.delete('--add')
incoming_file = true if @edit = args.delete('--edit')
@execute = true if args.delete("--execute") || args.delete("-x")
@sheet = args.shift
clear_cache_file if incoming_file
true
end
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#post_sheet(title, body, new = false) ⇒ Object
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# File 'lib/cheat.rb', line 159
def post_sheet(title, body, new = false)
uri = "http://#{cheat_uri}/w/"
uri += title unless new
Net::HTTP.post_form(URI.parse(uri), "sheet_title" => title, "sheet_body" => body.strip, "from_gem" => true)
end
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#process(sheet_yaml) ⇒ Object
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# File 'lib/cheat.rb', line 124
def process(sheet_yaml)
if @execute
execute(sheet_yaml)
else
show(sheet_yaml)
end
end
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#sheets(args) ⇒ Object
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# File 'lib/cheat.rb', line 17
def sheets(args)
args = args.dup
return unless parse_args(args)
FileUtils.mkdir(cache_dir) unless File.exists?(cache_dir) if cache_dir
uri = "http://#{cheat_uri}/y/"
if %w[sheets all recent].include? @sheet
uri = uri.sub('/y/', @sheet == 'recent' ? '/yr/' : '/ya/')
return open(uri, ) { |body| process(body.read) }
end
return process(File.read(cache_file)) if File.exists?(cache_file) rescue clear_cache if cache_file
fetch_sheet(uri + @sheet) if @sheet
end
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#show(sheet_yaml) ⇒ Object
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# File 'lib/cheat.rb', line 132
def show(sheet_yaml)
sheet = YAML.load(sheet_yaml).to_a.first
sheet[-1] = sheet.last.join("\n") if sheet[-1].is_a?(Array)
page
puts sheet.first + ':'
puts ' ' + sheet.last.gsub("\r",'').gsub("\n", "\n ").wrap
rescue Errno::EPIPE
rescue
puts "That didn't work. Maybe try `$ cheat cheat' for help?" end
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#show_versions(sheet) ⇒ Object
$ cheat greader –versions
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# File 'lib/cheat.rb', line 73
def show_versions(sheet)
fetch_sheet("http://#{cheat_uri}/h/#{sheet}/", false)
end
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#win32_cache_dir ⇒ Object
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# File 'lib/cheat.rb', line 197
def win32_cache_dir
unless File.exists?(home = ENV['HOMEDRIVE'] + ENV['HOMEPATH'])
puts "No HOMEDRIVE or HOMEPATH environment variable. Set one to save a" +
"local cache of cheat sheets."
return false
else
return File.join(home, 'Cheat')
end
end
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#write_to_tempfile(title, body = nil) ⇒ Object
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# File 'lib/cheat.rb', line 165
def write_to_tempfile(title, body = nil)
tempfile = Tempfile.new(title + '.cheat')
tempfile.write(body) if body
tempfile.close
system "#{editor} #{tempfile.path}"
tempfile.open
body = tempfile.read
tempfile.close
body
end
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