Battery (Linux): remove option --battery-dir

It was added in c5c3cecb93 but there was no comment or issues linked to indicate why it was necessary.

`/sys/class/power_supply` is standardized in <https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-class-power>. I don't I want to support non-standard platform unless proper reason is given

completions/bash

@@ -384,7 +384,6 @@ __fastfetch_completion()
         "--lib-pulse"
         "--lib-ddcutil"
         "--lib-nm"
-        "--battery-dir"
     )
 
     local FF_OPTIONS_LOGO=(

doc/json_schema.json

@@ -804,10 +804,6 @@
                                         "const": "battery",
                                         "description": "Print battery capacity, status, etc"
                                     },
-                                    "dir": {
-                                        "description": "The directory where the battery folders are. Standard: `/sys/class/power_supply/`. Linux only",
-                                        "type": "string"
-                                    },
                                     "useSetupApi": {
                                         "description": "Set if `SetupAPI` should be used on Windows to detect battery info, which supports multi batteries, but slower. Windows only",
                                         "type": "boolean",

src/data/help.json

@@ -1026,15 +1026,6 @@
                 "default": "main"
             }
         },
-        {
-            "long": "battery-dir",
-            "desc": "The directory where the battery folders are",
-            "remark": "Linux only",
-            "arg": {
-                "type": "path",
-                "default": "/sys/class/power_supply/"
-            }
-        },
         {
             "long": "battery-use-setup-api",
             "desc": "Set if \"SetupAPI\" should be used on Windows to detect battery info",

src/detection/battery/battery_linux.c

@@ -101,14 +101,13 @@ static void parseBattery(FFstrbuf* dir, const char* id, FFBatteryOptions* option
 const char* ffDetectBattery(FFBatteryOptions* options, FFlist* results)
 {
     FF_STRBUF_AUTO_DESTROY baseDir = ffStrbufCreateA(64);
-    ffStrbufAppend(&baseDir, &options->dir);
-    ffStrbufEnsureEndsWithC(&baseDir, '/');
+    ffStrbufAppend(&baseDir, "/sys/class/power_supply/");
 
     uint32_t baseDirLength = baseDir.length;
 
     FF_AUTO_CLOSE_DIR DIR* dirp = opendir(baseDir.chars);
     if(dirp == NULL)
-        return "opendir(batteryDir) == NULL";
+        return "opendir(\"/sys/class/power_supply/\") == NULL";
 
     struct dirent* entry;
     while((entry = readdir(dirp)) != NULL)
@@ -122,7 +121,7 @@ const char* ffDetectBattery(FFBatteryOptions* options, FFlist* results)
     }
 
     if(results->length == 0)
-        return "batteryDir doesn't contain any battery folder";
+        return "\"/sys/class/power_supply/\" doesn't contain any battery folder";
 
     return NULL;
 }

src/modules/battery/battery.c

@@ -115,14 +115,6 @@ bool ffParseBatteryCommandOptions(FFBatteryOptions* options, const char* key, co
         return true;
     }
 
-    #ifdef __linux__
-        if (ffStrEqualsIgnCase(subKey, "dir"))
-        {
-            ffOptionParseString(key, value, &options->dir);
-            return true;
-        }
-    #endif
-
     #ifdef _WIN32
         if (ffStrEqualsIgnCase(subKey, "use-setup-api"))
         {
@@ -147,14 +139,6 @@ void ffParseBatteryJsonObject(FFBatteryOptions* options, yyjson_val* module)
         if (ffJsonConfigParseModuleArgs(key, val, &options->moduleArgs))
             continue;
 
-        #ifdef __linux__
-        if (ffStrEqualsIgnCase(key, "dir"))
-        {
-            ffStrbufSetS(&options->dir, yyjson_get_str(val));
-            continue;
-        }
-        #endif
-
         #ifdef _WIN32
         if (ffStrEqualsIgnCase(key, "useSetupApi"))
         {
@@ -180,11 +164,6 @@ void ffGenerateBatteryJsonConfig(FFBatteryOptions* options, yyjson_mut_doc* doc,
 
     ffJsonConfigGenerateModuleArgsConfig(doc, module, &defaultOptions.moduleArgs, &options->moduleArgs);
 
-    #ifdef __linux__
-    if (!ffStrbufEqual(&defaultOptions.dir, &options->dir))
-        yyjson_mut_obj_add_strbuf(doc, module, "dir", &options->dir);
-    #endif
-
     #ifdef _WIN32
     if (defaultOptions.useSetupApi != options->useSetupApi)
         yyjson_mut_obj_add_bool(doc, module, "useSetupApi", options->useSetupApi);
@@ -257,9 +236,7 @@ void ffInitBatteryOptions(FFBatteryOptions* options)
     ffOptionInitModuleArg(&options->moduleArgs);
     options->temp = false;
 
-    #ifdef __linux__
-        ffStrbufInitStatic(&options->dir, "/sys/class/power_supply/");
-    #elif defined(_WIN32)
+    #ifdef _WIN32
         options->useSetupApi = false;
     #endif
 }
@@ -267,8 +244,4 @@ void ffInitBatteryOptions(FFBatteryOptions* options)
 void ffDestroyBatteryOptions(FFBatteryOptions* options)
 {
     ffOptionDestroyModuleArg(&options->moduleArgs);
-
-    #ifdef __linux__
-        ffStrbufDestroy(&options->dir);
-    #endif
 }

src/modules/battery/option.h

@@ -11,9 +11,7 @@ typedef struct FFBatteryOptions
 
     bool temp;
 
-    #ifdef __linux__
-        FFstrbuf dir;
-    #elif defined(_WIN32)
+    #ifdef _WIN32
         bool useSetupApi;
     #endif
 } FFBatteryOptions;