November 2012
Intermediate to advanced
888 pages
54h 46m
Polish
Content preview from Ruby. Receptury
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23.6. Zmiana nazw grupy plików
Problem
Chcemy zmienić nazwy grupie plików z poziomu kodu, na przykład w celu ujednolicenia wielkości liter w nazwach lub zmiany rozszerzenia.
Rozwiązanie
Można skorzystać z modułu Find dostępnego w standardowej bibliotece języka Ruby. Poniżej zamieszczono metodę, która zmienia nazwy plików na podstawie wyników zwracanych przez blok kodowy. Metoda zwraca listę plików, dla których nie udało się zmienić nazwy, ponieważ plik o proponowanej nazwie już istniał:
require 'find' module Find def rename(*paths) unrenamable = [] find(*paths) do |file| next unless File.file? file # Pominięcie katalogów path, name = File.split(file) new_name = yield name if new_name and new_name != name new_path = File.join(path, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.