Module: Hadupils::Search

Defined in:
lib/hadupils/search.rb

Class Method Summary collapse

Class Method Details

.find_from_dir(name, start) ⇒ Object

Searches for directory containing a subdirectory ‘name`, starting at the specified `start` directory and walking upwards until it can go no farther. On first match, the absolute path to that subdirectory is returned. If not found, returns nil.



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# File 'lib/hadupils/search.rb', line 6

def self.find_from_dir(name, start)
  curr = ::File.expand_path(start)
  last = nil
  while curr != last
    p = ::File.join(curr, name)
    return p if ::File.directory? p
    last = curr
    curr = ::File.dirname(curr)
  end
  nil
end

.find_from_pwd(name) ⇒ Object

Performs a ‘find_from_dir` starting at the present working directory.



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# File 'lib/hadupils/search.rb', line 19

def self.find_from_pwd(name)
  find_from_dir(name, ::Dir.pwd)
end

.hadoop_assets ⇒ Object

A search for #hadoop_assets_name from the pwd. The default behavior is to look for a subdir named “hadoop-ext”, starting from the current working directory and walking upwards until a match is found or the file system root is encountered.



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# File 'lib/hadupils/search.rb', line 46

def self.hadoop_assets
  find_from_pwd(hadoop_assets_name)
end

.hadoop_assets_name ⇒ Object

The basename to use when looking for hadoop assets from pwd.



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# File 'lib/hadupils/search.rb', line 33

def self.hadoop_assets_name
  @hadoop_assets_name || 'hadoop-ext'
end

.hadoop_assets_name=(basename) ⇒ Object

Set the basename to use when looking for hadoop assets from pwd.



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# File 'lib/hadupils/search.rb', line 38

def self.hadoop_assets_name=(basename)
  @hadoop_assets_name = basename
end

.hive_extensions ⇒ Object

A search for #hive_extensions_name from the pwd. The default behavior is to look for a subdir named hive-ext, starting from the current working directory and walking upwards until a match is found or the file system root is encountered.



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# File 'lib/hadupils/search.rb', line 64

def self.hive_extensions
  find_from_pwd(hive_extensions_name)
end

.hive_extensions_name ⇒ Object

The basename to use when looking for hive extensions from pwd.



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# File 'lib/hadupils/search.rb', line 51

def self.hive_extensions_name
  @hive_extensions_name || 'hive-ext'
end

.hive_extensions_name=(basename) ⇒ Object

Set the basename to use when looking for hive assets from pwd.



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# File 'lib/hadupils/search.rb', line 56

def self.hive_extensions_name=(basename)
  @hive_extensions_name = basename
end

.user_config ⇒ Object

The directory for user-specific configuration files.



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# File 'lib/hadupils/search.rb', line 24

def self.user_config
  @user_config || ::File.expand_path(::File.join('~', 'conf'))
end

.user_config=(path) ⇒ Object 



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# File 'lib/hadupils/search.rb', line 28

def self.user_config=(path)
  @user_config = path
end