inventory: generate the inventory pathname dynamically

My CI workflows need the inventory location to be determined at run
time, not set by the kdevops .config file, so the .configs can be
portable amongst test runners and test branches.

Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Daniel Gomez <da.gomez@samsung.com>
Tested-by: Daniel Gomez <da.gomez@samsung.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

Author: chucklever

Makefile

@@ -42,7 +42,12 @@ else
 ANSIBLE_CFG_FILE := $(TOPDIR_PATH)/ansible.cfg
 export ANSIBLE_CONFIG := $(ANSIBLE_CFG_FILE)
 endif
+
+ifeq (y,$(CONFIG_ANSIBLE_CFG_INVENTORY_CUSTOM))
 ANSIBLE_INVENTORY_FILE := $(shell echo $(CONFIG_ANSIBLE_CFG_INVENTORY) | tr --delete '"')
+else
+ANSIBLE_INVENTORY_FILE := $(TOPDIR_PATH)/hosts
+endif
 
 KDEVOPS_INSTALL_TARGETS :=
 
@@ -99,6 +104,9 @@ ANSIBLE_EXTRA_ARGS += topdir_path_sha256sum='$(TOPDIR_PATH_SHA256SUM)'
 ifneq (y,$(CONFIG_ANSIBLE_CFG_FILE_CUSTOM))
 ANSIBLE_EXTRA_ARGS += ansible_cfg_file='$(ANSIBLE_CFG_FILE)'
 endif
+ifneq (y,$(CONFIG_ANSIBLE_CFG_INVENTORY_CUSTOM))
+ANSIBLE_EXTRA_ARGS += ansible_cfg_inventory='$(ANSIBLE_INVENTORY_FILE)'
+endif
 
 export KDEVOPS_HOSTS_TEMPLATE := hosts.j2
 

kconfigs/Kconfig.ansible_cfg

@@ -263,6 +263,16 @@ config ANSIBLE_CFG_TASK_DEBUGGER
 
 	  https://docs.ansible.com/ansible/latest/playbook_guide/playbooks_debugger.html#id10
 
+config ANSIBLE_CFG_INVENTORY_CUSTOM
+	bool "Set a custom location for the Ansible inventory"
+	help
+	  When this option is set to N, kdevops creates its
+	  inventory file in a sensible default location. If it is
+	  set to Y, you can set the path and filename of the Ansible
+	  inventory.
+
+if ANSIBLE_CFG_INVENTORY_CUSTOM
+
 config ANSIBLE_CFG_INVENTORY
 	string "Ansible inventory sources"
 	output yaml
@@ -282,6 +292,8 @@ config ANSIBLE_CFG_INVENTORY
 	  For more details, refer to the Ansible documentation:
 	  https://docs.ansible.com/ansible/latest/reference_appendices/config.html#default-host-list
 
+endif # ANSIBLE_CFG_INVENTORY_CUSTOM
+
 if DISTRO_OPENSUSE
 
 config ANSIBLE_CFG_RECONNECTION_RETRIES