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Re: Generation of tags for the current project on the fly

From: Dmitry Gutov
Subject: Re: Generation of tags for the current project on the fly
Date: Mon, 5 Feb 2018 23:10:34 +0300
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On 2/5/18 20:06, Eli Zaretskii wrote:
Cc: Eli Zaretskii <address@hidden>, address@hidden
From: Dmitry Gutov <address@hidden>
Date: Mon, 5 Feb 2018 02:40:59 +0300

I wonder if 'make tags' would be able to make use of it somehow. If not,
I'll probably have to reimplement it in Elisp anyway. Eli, any thoughts?

Not sure I understand the question.  Are you asking if "make TAGS"
could run "etags -u"?  I think it could, but we'd need some Make
wizardry to generate a list of files modified after TAGS was last
written.  Currently, we just generate a list of all the relevant
source files.

For modified files, it could check modification times, similarly to how it can recompile only files it needs to. I think.

But I'm asking if you have any idea for how to deal with _deleted_ files? I.e. files that have been deleted since 'make tags' was last run.

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