From f52df65b5071044423ef1cd28694c37ba4f27ebe Mon Sep 17 00:00:00 2001 From: Ivan Malison Date: Mon, 15 Dec 2014 18:20:29 -0800 Subject: [PATCH] merge_zsh_history.py --- dotfiles/lib/python/merge_zsh_history.py | 32 ++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 dotfiles/lib/python/merge_zsh_history.py diff --git a/dotfiles/lib/python/merge_zsh_history.py b/dotfiles/lib/python/merge_zsh_history.py new file mode 100644 index 00000000..c7b5def4 --- /dev/null +++ b/dotfiles/lib/python/merge_zsh_history.py @@ -0,0 +1,32 @@ +import re + +history_entry_re = re.compile(": ([0-9]*):[0-9]*;.*") + +def merge_history(filenames): + pairs = [entry for filename in filenames for entry in entry_timestamp_pairs(filename)] + return "".join([p[0] for p in sorted(pairs, key=lambda pair: pair[1])]) + + +def entry_timestamp_pairs(filename): + pairs = [] + with open(filename, 'r') as file: + entry = None + timestamp = None + for line in file.readlines(): + if line[0] == ":": + if entry != None: + pairs.append((entry, timestamp)) + timestamp = timestamp_from_line(line) + entry = line + else: + entry += line + return pairs + + +def timestamp_from_line(line): + return int(history_entry_re.search(line).group(1)) + + +if __name__ == '__main__': + import sys + print merge_history(sys.argv[1:])