Add CLI flag for verbose logging

CHANGELOG.md

@@ -15,6 +15,7 @@ If a change only affects particular applications, they are listed in parentheses
 - feat(buffyboard): Add fbdev force-refresh quirk via config
 - feat(buffyboard): Allow disabling input devices via config
 - feat(buffyboard): Add CLI flags for overriding geometry & DPI
+- feat(buffyboard): Add CLI flag for verbose logging
 - fix(unl0kr): Shutdown message box doesn't close on decline
 - fix(unl0kr): Shutdown message box buttons and label are unstyled
 - fix(unl0kr): Build fails when DRM is disabled

buffyboard/README.md

@@ -59,6 +59,7 @@ Mandatory arguments to long options are mandatory for short options too.
                             * 2 - upside down orientation (180 degrees)
                             * 3 - counterclockwise orientation (270 degrees)
   -h, --help                Print this message and exit
+  -v, --verbose             Enable more detailed logging output on STDERR
   -V, --version             Print the buffyboard version and exit
 ```
 

buffyboard/command_line.c

@@ -45,6 +45,7 @@ static void init_opts(bb_cli_opts *opts) {
     opts->y_offset = 0;
     opts->dpi = 0;
     opts->rotation = LV_DISPLAY_ROTATION_0;
+    opts->verbose = false;
 }
 
 static void print_usage() {
@@ -71,6 +72,7 @@ static void print_usage() {
         "                            * 2 - upside down orientation (180 degrees)\n"
         "                            * 3 - counterclockwise orientation (270 degrees)\n"
         "  -h, --help                Print this message and exit\n"
+        "  -v, --verbose             Enable more detailed logging output on STDERR\n"
         "  -V, --version             Print the buffyboard version and exit\n");
         /*-------------------------------- 78 CHARS --------------------------------*/
 }
@@ -89,13 +91,14 @@ void bb_cli_parse_opts(int argc, char *argv[], bb_cli_opts *opts) {
         { "dpi",             required_argument, NULL, 'd' },
         { "rotate",          required_argument, NULL, 'r' },
         { "help",            no_argument,       NULL, 'h' },
+        { "verbose",         no_argument,       NULL, 'v' },
         { "version",         no_argument,       NULL, 'V' },
         { NULL, 0, NULL, 0 }
     };
 
     int opt, index = 0;
 
-    while ((opt = getopt_long(argc, argv, "C:g:d:r:hV", long_opts, &index)) != -1) {
+    while ((opt = getopt_long(argc, argv, "C:g:d:r:hvV", long_opts, &index)) != -1) {
         switch (opt) {
         case 'C':
             opts->config_files = realloc(opts->config_files, (opts->num_config_files + 1) * sizeof(char *));
@@ -145,6 +148,9 @@ void bb_cli_parse_opts(int argc, char *argv[], bb_cli_opts *opts) {
         case 'h':
             print_usage();
             exit(EXIT_SUCCESS);
+        case 'v':
+            opts->verbose = true;
+            break;
         case 'V':
             fprintf(stderr, "buffyboard %s\n", BB_VERSION);
             exit(0);

buffyboard/command_line.h

@@ -29,6 +29,8 @@ typedef struct {
     int dpi;
     /* Display rotation */
     lv_display_rotation_t rotation;
+    /* Verbose mode. If true, provide more detailed logging output on STDERR. */
+    bool verbose;
 } bb_cli_opts;
 
 /**

buffyboard/main.c

@@ -14,6 +14,7 @@
 #include "lvgl/lvgl.h"
 
 #include "../shared/indev.h"
+#include "../shared/log.h"
 #include "../shared/theme.h"
 #include "../shared/themes.h"
 #include "../squeek2lvgl/sq2lv.h"
@@ -180,6 +181,11 @@ int main(int argc, char *argv[]) {
     /* Parse command line options */
     bb_cli_parse_opts(argc, argv, &cli_opts);
 
+    /* Set up log level */
+    if (cli_opts.verbose) {
+        bbx_log_set_level(BBX_LOG_LEVEL_VERBOSE);
+    }
+
     /* Parse config files */
     bb_config_init_opts(&conf_opts);
     bb_config_parse_file("/etc/buffyboard.conf", &conf_opts);