Fastfetch: add -h format-json

Author: CarterLi

src/fastfetch.c

@@ -16,6 +16,43 @@
     #include "util/windows/getline.h"
 #endif
 
+static void printCommandFormatHelpJson(void)
+{
+    yyjson_mut_doc* doc = yyjson_mut_doc_new(NULL);
+    yyjson_mut_val* root = yyjson_mut_obj(doc);
+    yyjson_mut_doc_set_root(doc, root);
+
+    for (uint32_t i = 0; i <= 'Z' - 'A'; ++i)
+    {
+        for (FFModuleBaseInfo** modules = ffModuleInfos[i]; *modules; ++modules)
+        {
+            FFModuleBaseInfo* baseInfo = *modules;
+            if (!baseInfo->formatArgs.count) continue;
+
+            FF_STRBUF_AUTO_DESTROY type = ffStrbufCreateS(baseInfo->name);
+            ffStrbufLowerCase(&type);
+            ffStrbufAppendS(&type, "Format");
+
+            yyjson_mut_val* obj = yyjson_mut_obj(doc);
+            if (yyjson_mut_obj_add(root, yyjson_mut_strbuf(doc, &type), obj))
+            {
+                FF_STRBUF_AUTO_DESTROY content = ffStrbufCreateF("Output format of the module `%s`. See `-h format` for formatting syntax\n", baseInfo->name);
+                for (unsigned i = 0; i < baseInfo->formatArgs.count; i++)
+                {
+                    const FFModuleFormatArg* arg = &baseInfo->formatArgs.args[i];
+                    ffStrbufAppendF(&content, "    %u. {%s}: %s\n", i + 1, arg->name, arg->desc);
+                }
+                ffStrbufTrimRight(&content, '\n');
+                yyjson_mut_obj_add_strbuf(doc, obj, "description", &content);
+                yyjson_mut_obj_add_str(doc, obj, "type", "string");
+            }
+        }
+    }
+    yyjson_mut_write_fp(stdout, doc, YYJSON_WRITE_PRETTY, NULL, NULL);
+    putchar('\n');
+    yyjson_mut_doc_free(doc);
+}
+
 static void printCommandFormatHelp(const char* command)
 {
     FF_STRBUF_AUTO_DESTROY type = ffStrbufCreateNS((uint32_t) (strlen(command) - strlen("-format")), command);
@@ -265,6 +302,8 @@ static void printCommandHelp(const char* command)
         puts(FASTFETCH_DATATEXT_HELP_COLOR);
     else if(ffStrEqualsIgnCase(command, "format"))
         puts(FASTFETCH_DATATEXT_HELP_FORMAT);
+    else if(ffStrEqualsIgnCase(command, "format-json"))
+        printCommandFormatHelpJson();
     else if(ffCharIsEnglishAlphabet(command[0]) && ffStrEndsWithIgnCase(command, "-format")) // <module>-format
         printCommandFormatHelp(command);
     else if(!printSpecificCommandHelp(command))

src/modules/btrfs/btrfs.c

@@ -218,7 +218,7 @@ void ffGenerateBtrfsJsonResult(FF_MAYBE_UNUSED FFBtrfsOptions* options, yyjson_m
 
 static FFModuleBaseInfo ffModuleInfo = {
     .name = FF_BTRFS_MODULE_NAME,
-    .description = "Print BTRFS volumes",
+    .description = "Print Linux BTRFS volumes",
     .parseCommandOptions = (void*) ffParseBtrfsCommandOptions,
     .parseJsonObject = (void*) ffParseBtrfsJsonObject,
     .printModule = (void*) ffPrintBtrfs,

src/modules/font/font.c

@@ -104,7 +104,7 @@ void ffGenerateFontJsonResult(FF_MAYBE_UNUSED FFFontOptions* options, yyjson_mut
 
 static FFModuleBaseInfo ffModuleInfo = {
     .name = FF_FONT_MODULE_NAME,
-    .description = "Print system font name",
+    .description = "Print system font names",
     .parseCommandOptions = (void*) ffParseFontCommandOptions,
     .parseJsonObject = (void*) ffParseFontJsonObject,
     .printModule = (void*) ffPrintFont,