PowerAdapter (Linux): add support

CMakeLists.txt

@@ -422,7 +422,7 @@ if(LINUX)
         src/detection/opengl/opengl_linux.c
         src/detection/os/os_linux.c
         src/detection/packages/packages_linux.c
-        src/detection/poweradapter/poweradapter_nosupport.c
+        src/detection/poweradapter/poweradapter_linux.c
         src/detection/processes/processes_linux.c
         src/detection/gtk_qt/qt.c
         src/detection/sound/sound_linux.c

src/detection/poweradapter/poweradapter.h

@@ -11,7 +11,7 @@ typedef struct FFPowerAdapterResult
     int watts;
 } FFPowerAdapterResult;
 
-const char* ffDetectPowerAdapterImpl(FFlist* results);
+const char* ffDetectPowerAdapter(FFlist* results);
 
 #define FF_POWERADAPTER_UNSET -2
 #define FF_POWERADAPTER_NOT_CONNECTED -1

src/detection/poweradapter/poweradapter_apple.c

@@ -4,7 +4,7 @@
 
 #include <IOKit/IOKitLib.h>
 
-const char* ffDetectPowerAdapterImpl(FFlist* results)
+const char* ffDetectPowerAdapter(FFlist* results)
 {
     io_iterator_t iterator;
     if(IOServiceGetMatchingServices(MACH_PORT_NULL, IOServiceMatching("AppleSmartBattery"), &iterator) != kIOReturnSuccess)

src/detection/poweradapter/poweradapter_linux.c

@@ -0,0 +1,96 @@
+#include "poweradapter.h"
+#include "common/io/io.h"
+#include "util/stringUtils.h"
+
+#include <dirent.h>
+
+static void parsePowerAdapter(FFstrbuf* dir, FF_MAYBE_UNUSED const char* id, FFlist* results)
+{
+    uint32_t dirLength = dir->length;
+
+    FF_STRBUF_AUTO_DESTROY tmpBuffer = ffStrbufCreate();
+
+    //type must exist and be "Mains"
+    ffStrbufAppendS(dir, "/type");
+    if (ffReadFileBuffer(dir->chars, &tmpBuffer))
+        ffStrbufTrimRightSpace(&tmpBuffer);
+    ffStrbufSubstrBefore(dir, dirLength);
+
+    if(!ffStrbufIgnCaseEqualS(&tmpBuffer, "Mains"))
+        return;
+
+    //scope may not exist or must not be "Device" (?)
+    ffStrbufAppendS(dir, "/scope");
+    if (ffReadFileBuffer(dir->chars, &tmpBuffer))
+        ffStrbufTrimRightSpace(&tmpBuffer);
+    ffStrbufSubstrBefore(dir, dirLength);
+
+    if(ffStrbufIgnCaseEqualS(&tmpBuffer, "Device"))
+        return;
+
+    //input_power_limit must exist and be not empty
+    ffStrbufAppendS(dir, "/input_power_limit");
+    bool available = ffReadFileBuffer(dir->chars, &tmpBuffer);
+    ffStrbufSubstrBefore(dir, dirLength);
+
+    if (!available)
+        return;
+
+    FFPowerAdapterResult* result = ffListAdd(results);
+    ffStrbufInit(&result->name);
+    ffStrbufInit(&result->description);
+
+    ffStrbufAppendS(dir, "/online");
+    char online = '1';
+    ffReadFileData(dir->chars, sizeof(online), &online);
+    ffStrbufSubstrBefore(dir, dirLength);
+
+    if (online == '0')
+        result->watts = FF_POWERADAPTER_NOT_CONNECTED;
+    else
+        result->watts = (int) (ffStrbufToDouble(&tmpBuffer) / 1e6 + 0.5);
+
+    //At this point, we have a battery. Try to get as much values as possible.
+
+    ffStrbufInit(&result->manufacturer);
+    ffStrbufAppendS(dir, "/manufacturer");
+    if (ffReadFileBuffer(dir->chars, &result->manufacturer))
+        ffStrbufTrimRightSpace(&result->manufacturer);
+    else if (ffStrEquals(id, "macsmc-ac")) // asahi
+        ffStrbufSetStatic(&result->manufacturer, "Apple Inc.");
+    ffStrbufSubstrBefore(dir, dirLength);
+
+    ffStrbufInit(&result->modelName);
+    ffStrbufAppendS(dir, "/model_name");
+    if (ffReadFileBuffer(dir->chars, &result->modelName))
+        ffStrbufTrimRightSpace(&result->modelName);
+    ffStrbufSubstrBefore(dir, dirLength);
+}
+
+const char* ffDetectPowerAdapter(FFlist* results)
+{
+    FF_STRBUF_AUTO_DESTROY baseDir = ffStrbufCreateA(64);
+    ffStrbufAppendS(&baseDir, "/sys/class/power_supply/");
+
+    uint32_t baseDirLength = baseDir.length;
+
+    FF_AUTO_CLOSE_DIR DIR* dirp = opendir(baseDir.chars);
+    if(dirp == NULL)
+        return "opendir(\"/sys/class/power_supply/\") == NULL";
+
+    struct dirent* entry;
+    while((entry = readdir(dirp)) != NULL)
+    {
+        if(ffStrEquals(entry->d_name, ".") || ffStrEquals(entry->d_name, ".."))
+            continue;
+
+        ffStrbufAppendS(&baseDir, entry->d_name);
+        parsePowerAdapter(&baseDir, entry->d_name, results);
+        ffStrbufSubstrBefore(&baseDir, baseDirLength);
+    }
+
+    if(results->length == 0)
+        return "\"/sys/class/power_supply/\" doesn't contain any power adapter folder";
+
+    return NULL;
+}

src/detection/poweradapter/poweradapter_nosupport.c

@@ -1,7 +1,6 @@
-#include "fastfetch.h"
+#include "poweradapter.h"
 
-const char* ffDetectPowerAdapterImpl(FFlist* results)
+const char* ffDetectPowerAdapter(FF_MAYBE_UNUSED FFlist* results)
 {
-    FF_UNUSED(results);
     return "Not supported on this platform";
 }

src/modules/poweradapter/poweradapter.c

@@ -11,7 +11,7 @@ void ffPrintPowerAdapter(FFPowerAdapterOptions* options)
 {
     FF_LIST_AUTO_DESTROY results = ffListCreate(sizeof(FFPowerAdapterResult));
 
-    const char* error = ffDetectPowerAdapterImpl(&results);
+    const char* error = ffDetectPowerAdapter(&results);
 
     if (error)
     {
@@ -99,7 +99,7 @@ void ffGeneratePowerAdapterJsonResult(FF_MAYBE_UNUSED FFPowerAdapterOptions* opt
 {
     FF_LIST_AUTO_DESTROY results = ffListCreate(sizeof(FFPowerAdapterResult));
 
-    const char* error = ffDetectPowerAdapterImpl(&results);
+    const char* error = ffDetectPowerAdapter(&results);
 
     if (error)
     {