1#!/bin/sh
2
3# This file illustrates how to generate a useful TAGS file via etags
4# for emacs.  This should be invoked from the top source directory i.e.:
5#   > build/MakeEtags
6# and will create a TAGS file in the top source directory.
7
8# This script falls under the Apache License.
9# See http://www.apache.org/docs/LICENSE
10
11# Once you have created ./TAGS in emacs you'll need to setup
12# tag-table-alist with an entry to assure it finds the single ./TAGS
13# file from the many source directories.  Something along these lines:
14# (setq tag-table-alist
15#	'(("/home/me/work/apr-x.y/" . "/home/me/work/apr-x.y/")
16#	  ("/home/me/work/apr-util-x.y/" . "/home/me/work/apr-util-x.y/")
17#	  ("/home/me/work/httpd-x.y/" . "/home/me/work/httpd-x.y/")
18#	 ))
19
20# This requires a special version of etags, i.e. the
21# one called "Exuberant ctags" available at:
22#    http://ctags.sourceforge.net/
23# Once that is setup you'll need to point to the
24# executable here:
25
26etags=${ETAGS-etags}
27
28# Exuberant etags is necessary since it can ignore some defined symbols
29# that obscure the function signatures.
30
31ignore=AP_DECLARE,AP_DECLARE_NONSTD,__declspec,APR_DECLARE,APR_DECLARE_NONSTD
32ignore=$ignore,APU_DECLARE,APU_DECLARE_NONSTD
33
34# Create an etags file at the root of the source
35# tree, then create symbol links to it from each
36# directory in the source tree.  By passing etags
37# absolute pathnames we get a tag file that is
38# NOT portable when we move the directory tree.
39
40find . -name '*.[ch]' -print | $etags -I "$ignore"  -L -
41
42