Localize tag add/delete, fix some translations, add LanguageIcon, add --lang arg, fix lightbox slideshow time, fix gif hover

src/cli.c

@@ -377,15 +377,15 @@ int web_args_validate(web_args_t *args, int argc, const char **argv) {
         args->es_index = DEFAULT_ES_INDEX;
     }
 
-    if (args->lang == NULL) {
-        args->lang = DEFAULT_LANG;
-    }
-
     if (args->tagline == NULL) {
         args->tagline = DEFAULT_TAGLINE;
     }
 
-    if (strlen(args->lang) != 2) {
+    if (args->lang == NULL) {
+        args->lang = DEFAULT_LANG;
+    }
+
+    if (strlen(args->lang) != 2 && strlen(args->lang) != 5) {
         fprintf(stderr, "Invalid --lang value, see usage\n");
         return 1;
     }

src/ctx.h

@@ -98,7 +98,7 @@ typedef struct {
     int tag_auth_enabled;
     char *tagline;
     struct index_t indices[256];
-    char lang[3];
+    char lang[10];
     int dev;
 } WebCtx_t;
 

src/main.c

@@ -501,7 +501,7 @@ void sist2_web(web_args_t *args) {
     WebCtx.tag_auth_enabled = args->tag_auth_enabled;
     WebCtx.tagline = args->tagline;
     WebCtx.dev = args->dev;
-    strcpy(WebCtx.lang, "en");
+    strcpy(WebCtx.lang,  args->lang);
 
     for (int i = 0; i < args->index_count; i++) {
         char *abs_path = abspath(args->indices[i]);
@@ -614,6 +614,7 @@ int main(int argc, const char *argv[]) {
             OPT_STRING(0, "tag-auth", &web_args->tag_credentials, "Basic auth in user:password format for tagging"),
             OPT_STRING(0, "tagline", &web_args->tagline, "Tagline in navbar"),
             OPT_BOOLEAN(0, "dev", &web_args->dev, "Serve html & js files from disk (for development)"),
+            OPT_STRING(0, "lang", &web_args->lang, "Default UI language. Can be changed by the user"),
 
             OPT_GROUP("Exec-script options"),
             OPT_STRING(0, "es-url", &common_es_url, "Elasticsearch url. DEFAULT=http://localhost:9200"),