meson: summarise paths

The IPAs are loaded from a defined location set as IPA_MODULE_DIR.
Furthermore, configuration files for both libcamera and IPAs are loaded
from paths defined during the meson configuration.

To make it easy to identify these locations for a given configuration,
present them as a 'paths' section in the meson summary.

This adds a summary section to meson in the form:

  Paths
    LIBCAMERA_DATA_DIR       : "/usr/share/libcamera"
    LIBCAMERA_SYSCONF_DIR    : "/etc/camera/libcamera"
    IPA_PROXY_DIR            : "/usr/libexec/libcamera"
    IPA_CONFIG_DIR           : "/etc/camera/libcamera/ipa:/usr/share/libcamera/ipa"
    IPA_MODULE_DIR           : "/usr/lib/x86_64-linux-gnu/libcamera"

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

src/ipa/meson.build

@@ -15,6 +15,11 @@ config_h.set('IPA_CONFIG_DIR',
 config_h.set('IPA_MODULE_DIR',
              '"' + get_option('prefix') / ipa_install_dir + '"')
 
+summary({
+         'IPA_CONFIG_DIR' : config_h.get('IPA_CONFIG_DIR'),
+         'IPA_MODULE_DIR' : config_h.get('IPA_MODULE_DIR'),
+         }, section : 'Paths')
+
 subdir('libipa')
 
 ipa_sign = files('ipa-sign.sh')

src/libcamera/proxy/worker/meson.build

@@ -26,3 +26,7 @@ endforeach
 
 config_h.set('IPA_PROXY_DIR',
              '"' + get_option('prefix') / proxy_install_dir + '"')
+
+summary({
+         'IPA_PROXY_DIR' : config_h.get('IPA_PROXY_DIR'),
+         }, section : 'Paths')

src/meson.build

@@ -8,6 +8,11 @@ libcamera_sysconfdir = get_option('sysconfdir') / 'libcamera'
 config_h.set('LIBCAMERA_DATA_DIR', '"' + get_option('prefix') / libcamera_datadir + '"')
 config_h.set('LIBCAMERA_SYSCONF_DIR', '"' + get_option('prefix') / libcamera_sysconfdir + '"')
 
+summary({
+         'LIBCAMERA_DATA_DIR' : config_h.get('LIBCAMERA_DATA_DIR'),
+         'LIBCAMERA_SYSCONF_DIR' : config_h.get('LIBCAMERA_SYSCONF_DIR'),
+         }, section : 'Paths')
+
 # Module Signing
 openssl = find_program('openssl', required : true)
 if openssl.found()