diff --git a/cheat b/cheat index 856a419..a4d0117 100755 --- a/cheat +++ b/cheat @@ -2,31 +2,44 @@ import os import sys +def cheat_directories(): + default = [ default_dir for default_dir in [os.path.expanduser('~/.cheat')] if os.path.isdir(default_dir) ] + if 'CHEATPATH' in os.environ and os.environ['CHEATPATH']: + return [ path for path in os.environ['CHEATPATH'].split(os.pathsep) if os.path.isdir(path) ] + default + else: + return default + +def cheat_files(cheat_directories): + cheats = {} + for cheat_dir in reversed(cheat_directories): + cheats.update(dict([ (cheat, cheat_dir) for cheat in os.listdir(cheat_dir) ])) + return cheats + # assemble a keyphrase out of all params passed to the script keyphrase = ' '.join(sys.argv[1:]) -cheat_dir = os.path.expanduser('~') + '/.cheat/' +cheat_dirs = cheat_directories() -# verify that the ~/.cheat directory exists -if not os.path.isdir(cheat_dir): - print >> sys.stderr, 'The ~/.cheat directory does not exist.' - exit() +# verify that we have at least one cheat directory +if not cheat_dirs: + print >> sys.stderr, 'The ~/.cheat directory does not exist or the CHEATPATH variable is not set.' + exit() # list the files in the ~/.cheat directory -cheatsheets = os.listdir(cheat_dir) -cheatsheets.sort() +cheatsheets = cheat_files(cheat_dirs) # print help if requested -if keyphrase in ['', 'help', '--help', '-h']: - print "Usage: cheat [keyphrase]\n" - print "Available keyphrases:" - print "\n".join(cheatsheets) - exit() +if keyphrase.lower() in ['', 'help', '--help', '-h']: + print "Usage: cheat [keyphrase]\n" + print "Available keyphrases:" + max_command = max([ len(x) for x in cheatsheets.keys() ]) + 3 + print '\n'.join(sorted([ '%s [%s]' % (key.ljust(max_command), value) for key, value in cheatsheets.items() ])) + exit() # print the cheatsheet if it exists if keyphrase in cheatsheets: - with open (cheat_dir + keyphrase, 'r') as cheatsheet: - print cheatsheet.read() + with open (os.path.join(cheatsheets[keyphrase], keyphrase), 'r') as cheatsheet: + print cheatsheet.read() # if it does not, say so else: - print 'No cheatsheet found.' + print 'No cheatsheet found for %s.' % keyphrase