Re: [PATCH v4] tags: much faster, parallel "make tags"

[Michal Marek <mmarek@suse.cz>]

On 2015-05-11 22:25, Alexey Dobriyan wrote:
> ctags is single-threaded program. Split list of files to be tagged into
> almost equal parts, process them on every CPU and merge the results.

Sorry, I missed the v4 of the patch.


> +	# Remove headers.
> +	for i in .make-tags.t*; do
> +		sed -i -e '/^!/d' $i
> +	done
> +
> +	# Write final header.
> +	$1 -f $2 /dev/null
> +
> +	# Append sorted results.
> +	sort .make-tags.t* >>$2
> +	rm -f .make-tags.t*

This still breaks Exuberant ctags in emacs mode:
$ ln -s /usr/bin/ctags ~/bin/etags
$ make TAGS
  GEN     TAGS
etags: "TAGS" doesn't look like a tag file; I refuse to overwrite it.
etags: "TAGS" doesn't look like a tag file; I refuse to overwrite it.

The TAGS file is corrupted because of the sorting.

Michal