Re: IOC build fails after removing an iocBoot dir from Git

["Johnson, Andrew N. via Core-talk" <core-talk at aps.anl.gov>]

Hi Martin,

On Mar 18, 2020, at 2:04 PM, Konrad, Martin via Core-talk <core-talk at aps.anl.gov> wrote:

I have an IOC directory which is revision controlled using Git. It
contains iocBoot directories for multiple IOC instances. An automatic
deployment system runs something like this (simplified):

git pull
make

This generally works fine. But whenever we are retiring an IOC instance
which means we are removing the corresponding sub-directory in
$(TOP)/iocBoot from the Git repo. Now running the commands above fails.
Turns out this is because the first make run generated
iocBoot/ioctest2/envPaths which is left behind when running "git pull"
(Git only manages files, it automatically deletes empty directories but
it can't delete my iocBoot directory since it still contains an
auto-generated file).

I'm wondering if it would be possible/safe to use a Make rule that only
considers sub-directories of iocBoot that actually contain a Makefile.

Wouldn’t it be easier to just do a ‘make -C iocBoot clean’ before you do the ‘git pull’?

If you look at your iocBoot/Makefile you’ll see that if sets the DIRS itself using wildcards; you should be able to modify the value of that variable like this:

DIRS := $(subst /Makefile,,$(wildcard $(addsuffix /Makefile, $(DIRS))))

The result will not descend into a directory that doesn’t have a Makefile. I wouldn’t want to add that to Base though, some people use GNU’s alternative names for their Makefiles.

- Andrew

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