.\"
.\"     aegis - project change supervisor
.\"     Copyright (C) 2002, 2004, 2006-2008, 2010, 2012 Peter Miller
.\"
.\"     This program is free software; you can redistribute it and/or modify
.\"     it under the terms of the GNU General Public License as published by
.\"     the Free Software Foundation; either version 3 of the License, or
.\"     (at your option) any later version.
.\"
.\"     This program is distributed in the hope that it will be useful,
.\"     but WITHOUT ANY WARRANTY; without even the implied warranty of
.\"     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
.\"     GNU General Public License for more details.
.\"
.\"     You should have received a copy of the GNU General Public License
.\"     along with this program. If not, see
.\"     <http://www.gnu.org/licenses/>.
.\"
.bp
.nh 2 "Building Executable Scripts"
.LP
Aegis treats source files as, well, source files.
This means that it forgets any executable bits (and any other mode bits)
you may set on the file.
Usually, this isn't a problem \- except for scripts.
.LP
So, just how \fIdo\fP you get Aegis to give you an executable script?
Well, you add a build rule.
However, since it can't depend on itself, it needs to depend on something else.
.LP
Using a Cook example, we could write
.E(
bin/%: script/%.sh
{
    /* copy the script */
    cp script/%.sh bin/%;
    /* make it executable */
    chmod a+rx bin/%;
    /* syntax check */
    bash \-n bin/%;
}
.E)
There is a small amout of value\[hy]added here: we did a syntax check along
the way, which catches all sorts of problems.
.LP
.\" Chuck Eaker <ceaker@nycap.rr.com>
The same technique also works for Perl
.E(
bin/%: script/%.pl
{
    cp script/%.pl bin/%;
    chmod a+rx bin/%;
    perl \-cw bin/%;
}
.E)
.LP
.\" Ralf Fassel <ralf@akutech.de>
The same technique also works for TCL
.E(
bin/%: script/%.tcl
{
    cp script/%.rcl bin/%;
    chmod a+rx bin/%;
    procheck \-nologo bin/%;
}
.E)
The \fIprocheck\fP(1) command is part of the TclPro package.
.LP
Many tools have a similar options.
.LP
You can also combine this with GNU Autoconf to produce
architecture specific shell scripts from architecture neutral sources.


/* vim: set ts=8 sw=4 et : */