mirror of https://github.com/nirenjan/dotfiles.git
70 lines
1.8 KiB
Ruby
Executable File
70 lines
1.8 KiB
Ruby
Executable File
#!/usr/bin/env ruby
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# -*- ruby -*-
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# Script to smartly chop off portions of the current working directory for
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# use in the shell prompt
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# Some of the methods don't work with Ruby versions older than 1.8.7
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min_release = "1.8.7 (2008-08-11)"
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ruby_release = "#{RUBY_VERSION} (#{RUBY_RELEASE_DATE})"
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# Constants used to decide when to start chopping
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DIRLIM = 5
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DIR_L = 3
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DIR_R = 2
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PWDLEN = 14
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def backslash_w
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homedir = ENV['HOME']
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pwd = ENV['PWD']
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print pwd.gsub(homedir, '~')
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end
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def smartwd
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username = ENV['USER']
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homedir = ENV['HOME']
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pwd = ENV['PWD']
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path = pwd.split('/')
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# Ignore the root path
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if (path.length > 0)
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index = path.index(username)
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if index
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prefix = path.shift(index + 1)
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# We need to map additional paths in environments where the user
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# may have more than one available folder in his/her name.
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if prefix.join('/') == homedir
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path.unshift('~')
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else
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# The first entry in the prefix array is the empty string
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pre = prefix[1].split('').shift(4).join('') + '~'
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path.unshift(pre)
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end
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else
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# Replace the first two entries in the array with /<entry1>
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# (because the first entry is always empty string)
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prefix = path.shift(2).join('/')
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path.unshift(prefix)
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end
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# Check to make sure that both the DIRLIM and PWDLEN constraints
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# are met before splitting
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pwd = path.join('/')
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if path.length > DIRLIM and pwd.length > PWDLEN
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pwd_l = path.shift(DIR_L).join('/')
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pwd_r = path.pop(DIR_R).join('/')
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pwd = pwd_l + '/.../' + pwd_r
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end
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end
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print pwd
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end
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if (ruby_release < min_release)
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backslash_w
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else
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smartwd
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end
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