Refactor Makefile config / Defaults.mk

Makefile has included a Defaults.mk file to store variable configuration
from one run for implicit inclusion in future runs, but the creation of
this file has been automatic and opaque, and the state of it managed by
a series of PHONY targets (e.g., config, genconfig, rm_config). This
commit refactors config to name its files explicitly (so they can be
more properly monitored by make) and makes the generation of Defaults.mk
explicit so that its behavior is more obvious.

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

Dockerfile

@@ -7,8 +7,7 @@ RUN zypper  -n install --no-recommends git go1.18 libgpgme-devel &&\
 COPY . /warewulf-src
 
 RUN cd /warewulf-src &&\
-  make contclean &&\
-  make genconfig \
+  make contclean Defaults.mk \
     PREFIX=/usr \
     BINDIRa=/usr/bin \
     SYSCONFDIR=/etc \

Makefile

@@ -27,18 +27,16 @@ endif
 $(TOOLS_DIR):
 	mkdir -p $@
 
-config:
-	printf " $(foreach V,$(VARLIST),$V := $(strip $($V))\n)" > Defaults.mk
-	find . -type f -name "*.in" -not -path "./vendor/*" \
-		-exec sh -c 'sed -ne "$(foreach V,$(VARLIST),s,@$V@,$(strip $($V)),g;)p" $${0} > $${0%.in}' {} \;
-	touch config
+.PHONY: config
+config: etc/wwapic.conf \
+	etc/wwapid.conf \
+	etc/wwapird.conf \
+	include/systemd/warewulfd.service \
+	internal/pkg/config/buildconfig.go \
+	warewulf.spec
 
-.PHONY: rm_config
-rm_config:
-	rm -f config
-
-.PHONY: genconfig
-genconfig: rm_config config
+%: %.in
+	sed -ne "$(foreach V,$(VARLIST),s,@$V@,$(strip $($V)),g;)p" $@.in >$@
 
 .PHONY: lint
 lint: setup_tools
@@ -183,11 +181,10 @@ wwapird:
 
 .PHONY: contclean
 contclean:
+	rm -f Defaults.mk
 	rm -f $(WAREWULF)-$(VERSION).tar.gz
 	rm -f bash_completion
-	rm -f config
-	rm -f config_defaults 
-	rm -f Defaults.mk
+	rm -f config_defaults
 	rm -f etc/wwapi{c,d,rd}.conf
 	rm -f etc/wwapi{c,d,rd}.config
 	rm -f include/systemd/warewulfd.service

Variables.mk

@@ -97,3 +97,6 @@ export GOPROXY
 
 # built tags needed for wwbuild binary
 WW_GO_BUILD_TAGS := containers_image_openpgp containers_image_ostree
+
+Defaults.mk:
+	printf " $(foreach V,$(VARLIST),$V := $(strip $($V))\n)" >Defaults.mk

userdocs/contributing/development-environment-vagrant.rst

@@ -158,7 +158,7 @@ Vagrantfile
                 git clone https://github.com/hpcng/warewulf.git
                 cd warewulf
                 git checkout v4.4.0
-                make genconfig \
+                make clean Defaults.mk \
                     PREFIX=/usr \
                     BINDIR=/usr/bin \
                     SYSCONFDIR=/etc \

userdocs/quickstart/el8.rst

@@ -13,7 +13,7 @@ Install Warewulf and dependencies
 
    git clone https://github.com/hpcng/warewulf.git
    cd warewulf
-   make genconfig \
+   make clean Defaults.mk \
     PREFIX=/usr \
     BINDIR=/usr/bin \
     SYSCONFDIR=/etc \

userdocs/quickstart/el9.rst

@@ -14,7 +14,7 @@ Install Warewulf and dependencies
 
    git clone https://github.com/hpcng/warewulf.git
    cd warewulf
-   make genconfig \
+   make clean Defaults.mk \
     PREFIX=/usr \
     BINDIR=/usr/bin \
     SYSCONFDIR=/etc \

userdocs/quickstart/suse15.rst

@@ -16,7 +16,7 @@ Install Warewulf and dependencies
 
    git clone https://github.com/hpcng/warewulf.git
    cd warewulf
-   PREFIX=/usr SYSCONFDIR=/etc TFTPDIR=/srv/tftproot LOCALSTATEDIR=/var/lib make genconfig
+   PREFIX=/usr SYSCONFDIR=/etc TFTPDIR=/srv/tftproot LOCALSTATEDIR=/var/lib make clean Defaults.mk
    make all
    sudo make install
 

warewulf.spec.in

@@ -71,7 +71,7 @@ system for large clusters of bare metal and/or virtual systems.
 %build
 %{?with_offline:OFFLINE_BUILD=1}
 # Install to sharedstatedir by redirecting LOCALSTATEDIR
-make genconfig \
+make Defaults.mk \
     PREFIX=%{_prefix} \
     BINDIR=%{_bindir} \
     SYSCONFDIR=%{_sysconfdir} \
@@ -92,7 +92,8 @@ make
 
 %install
 export NO_BRP_STALE_LINK_ERROR=yes
-make install DESTDIR=%{buildroot}
+make install \
+    DESTDIR=%{buildroot}
 
 
 %pre