Recent Changes

2019-10-21

• 18:59 UTC (new) (history) 2019-10-21 Clearing the Eshell buffer . . . . Marcin Borkowski – Since I’ve been quite busy recently, I only have one short tip today. I sometimes use Eshell, and sometimes want to clear it so that I can e.g. isearch through the result of running some command and not be bothered by the output of previous commands. In such a case, I can say clear, but it does not really clear the Eshell buffer – it only makes the part above point scroll past the visible part (and it seems that it doesn’t even take into account the font – if I make it smaller, clear does not scroll enough). But I can also give clear any argument (e.g., say clear t), and then the previous contents of the buffer are really deleted. Handy.

2019-10-12

• 11:58 UTC (new) (history) 2019-10-12 Challenge accepted - a Node.js grep . . . . Marcin Borkowski – An old friend of mine posted a challenge on Twitter to implement a grep-like utility in one’s language of choice. Instead of complaining that he’s got an unfair advantage – he is a Pythonista, and Python is almost as well-suited to that kind of tasks as Perl – I decided to accept the challenge. Of course, I had to start with Emacs Lisp.
• 11:53 UTC (diff) (history) Comments on 2019-10-07 A tip with diffing (and committing) program structure changes . . . . Marcin Borkowski – Yep, I tried to be comprehensive. :-)

2019-10-07

• 20:23 UTC (new) (history) 2019-10-07 A tip with diffing (and committing) program structure changes . . . . Marcin Borkowski – As I mentioned last week, the fact that diff works on a line basis is sometimes a source of trouble. Consider this case. Assume that we have a simple JavaScript module greets (I guess that a very similar case could be made for Java classes, Python modules etc.).

2019-09-30

• 20:33 UTC (new) (history) 2019-09-30 diff and ignoring lines . . . . Marcin Borkowski – One of the most well-known commandline tools is the classical diff program. On my system, it is (of course) the GNU diff, which is a part of the GNU diffutils package. Recently, I found out that GNU diff has an interesting option, -I (or --ignore-matching-lines). You can give it a regex and it will ignore added or deleted lines if they contain a match for this regex. This may be useful in many circumstances.

2019-09-23

• 18:44 UTC (new) (history) 2019-09-23 A comparison between merging and rebasing . . . . Marcin Borkowski – Many Git tutorials and howtos discuss the question whether you should merge or rebase your branches on the master branch when ready to include some feature in your code. What they usually do not mention is that rebase may be trickier to perform than merge. Why is that so? Let’s dive in and see.

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