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update_unicode.sh: move it into contrib/update-unicode

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As it's used only by a tiny minority of the Git developer population,
this script does not belong into the main Git source directory.

Move it into contrib/ and adjust the paths to account for the new
location.

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Beat Bolli
2016-12-14 00:31:39 +01:00
committed by Junio C Hamano
parent 32c239d1fb
commit f3eb54920e
4 changed files with 26 additions and 6 deletions
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20
contrib/update-unicode/README Normal file
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TL;DR: Run update_unicode.sh after the publication of a new Unicode
standard and commit the resulting unicode_widths.h file.
The long version
================
The Git source code ships the file unicode_widths.h which contains
tables of zero and double width Unicode code points, respectively.
These tables are generated using update_unicode.sh in this directory.
update_unicode.sh itself uses a third-party tool, uniset, to query two
Unicode data files for the interesting code points.
On first run, update_unicode.sh clones uniset from Github and builds it.
This requires a current-ish version of autoconf (2.69 works per December
2016).
On each run, update_unicode.sh checks whether more recent Unicode data
files are available from the Unicode consortium, and rebuilds the header
unicode_widths.h with the new data. The new header can then be
committed.