macos

src/core/package.cpp

@@ -295,15 +295,7 @@ namespace package {
     if (cargoPath.empty() || !fs::exists(cargoPath))
       return Err(DracError(DracErrorCode::NotFound, "Could not find cargo directory"));
 
-    u64 count = 0;
-
-    for (const fs::directory_entry& entry : fs::directory_iterator(cargoPath))
-      if (entry.is_regular_file())
-        ++count;
-
-    debug_log("Found {} packages in cargo directory: {}", count, cargoPath.string());
-
-    return count;
+    return GetCountFromDirectory("cargo", cargoPath);
   }
 
   fn GetTotalCount() -> Result<u64> {

src/os/macos.cpp

@@ -5,54 +5,120 @@
 #include <sys/statvfs.h>
 #include <sys/sysctl.h>
 
-#include "macos/bridge.hpp"
-#include "os.hpp"
+#include "src/core/package.hpp"
 #include "src/util/defs.hpp"
 #include "src/util/error.hpp"
+#include "src/util/helpers.hpp"
 #include "src/util/types.hpp"
+
+#include "macos/bridge.hpp"
+#include "os.hpp"
 // clang-format on
 
 using namespace util::types;
-using util::error::DracError;
+using util::error::DracError, util::error::DracErrorCode;
+using util::helpers::GetEnv;
 
-fn os::GetMemInfo() -> Result<u64> {
+namespace {
+  fn StrEqualsIgnoreCase(std::string_view strA, std::string_view strB) -> bool {
+    if (strA.length() != strB.length())
+      return false;
+
+    return std::equal(strA.begin(), strA.end(), strB.begin(), [](char aChar, char bChar) {
+      return std::tolower(static_cast<unsigned char>(aChar)) == std::tolower(static_cast<unsigned char>(bChar));
+    });
+  }
+
+  fn Capitalize(std::string_view sview) -> Option<String> {
+    if (sview.empty())
+      return None;
+
+    String result(sview);
+    result[0] = static_cast<char>(std::toupper(static_cast<unsigned char>(result[0])));
+
+    return result;
+  }
+} // namespace
+
+namespace os {
+  fn GetMemInfo() -> Result<u64> {
     u64   mem  = 0;
     usize size = sizeof(mem);
 
     if (sysctlbyname("hw.memsize", &mem, &size, nullptr, 0) == -1)
-    return Err(DracError::withErrno("Failed to get memory info"));
+      return Err(DracError("Failed to get memory info"));
 
     return mem;
-}
+  }
 
-fn os::GetNowPlaying() -> Result<MediaInfo> { return GetCurrentPlayingInfo(); }
+  fn GetNowPlaying() -> Result<MediaInfo> { return GetCurrentPlayingInfo(); }
 
-fn os::GetOSVersion() -> Result<String> { return GetMacOSVersion(); }
+  fn GetOSVersion() -> Result<String> { return GetMacOSVersion(); }
 
-fn os::GetDesktopEnvironment() -> Result<String> {
-  return "Aqua"; // TODO: Implement
-}
+  fn GetDesktopEnvironment() -> Result<String> { return "Aqua"; }
 
-fn os::GetWindowManager() -> Result<String> {
-  return "Yabai"; // TODO: Implement
-}
+  fn GetWindowManager() -> Result<String> {
+    constexpr std::array<std::string_view, 6> knownWms = {
+      "yabai", "kwm", "chunkwm", "amethyst", "spectacle", "rectangle",
+    };
 
-fn os::GetKernelVersion() -> Result<String> {
+    Array<i32, 3> request = { CTL_KERN, KERN_PROC, KERN_PROC_ALL };
+
+    usize len = 0;
+
+    if (sysctl(request.data(), request.size(), nullptr, &len, nullptr, 0) == -1)
+      return Err(DracError("sysctl size query failed for KERN_PROC_ALL"));
+
+    if (len == 0)
+      return Err(DracError(DracErrorCode::NotFound, "sysctl for KERN_PROC_ALL returned zero length"));
+
+    Vec<char> buf(len);
+
+    if (sysctl(request.data(), request.size(), buf.data(), &len, nullptr, 0) == -1)
+      return Err(DracError("sysctl data fetch failed for KERN_PROC_ALL"));
+
+    if (len % sizeof(kinfo_proc) != 0)
+      return Err(DracError(
+        DracErrorCode::PlatformSpecific,
+        std::format("sysctl returned size {} which is not a multiple of kinfo_proc size {}", len, sizeof(kinfo_proc))
+      ));
+
+    usize count = len / sizeof(kinfo_proc);
+
+    std::span<const kinfo_proc> processes = std::span(
+      reinterpret_cast<const kinfo_proc*>(buf.data()), count // NOLINT(cppcoreguidelines-pro-type-reinterpret-cast)
+    );
+
+    for (const kinfo_proc& procInfo : processes) {
+      StringView comm(procInfo.kp_proc.p_comm);
+
+      for (const auto& wmName : knownWms)
+        if (StrEqualsIgnoreCase(comm, wmName)) {
+          const auto capitalized = Capitalize(comm);
+          return capitalized ? Result<String>(*capitalized)
+                             : Err(DracError(DracErrorCode::ParseError, "Failed to capitalize window manager name"));
+        }
+    }
+
+    return "Quartz";
+  }
+
+  fn GetKernelVersion() -> Result<String> {
     Array<char, 256> kernelVersion {};
     usize            kernelVersionLen = sizeof(kernelVersion);
 
     if (sysctlbyname("kern.osrelease", kernelVersion.data(), &kernelVersionLen, nullptr, 0) == -1)
-    return Err(DracError::withErrno("Failed to get kernel version"));
+      return Err(DracError("Failed to get kernel version"));
 
     return kernelVersion.data();
-}
+  }
 
-fn os::GetHost() -> Result<String> {
+  fn GetHost() -> Result<String> {
     Array<char, 256> hwModel {};
     usize            hwModelLen = sizeof(hwModel);
 
     if (sysctlbyname("hw.model", hwModel.data(), &hwModelLen, nullptr, 0) == -1)
-    return Err(DracError::withErrno("Failed to get host info"));
+      return Err(DracError("Failed to get host info"));
 
     // taken from https://github.com/fastfetch-cli/fastfetch/blob/dev/src/detection/host/host_mac.c
     // shortened a lot of the entries to remove unnecessary info
@@ -207,27 +273,97 @@ fn os::GetHost() -> Result<String> {
 
     const auto iter = modelNameByHwModel.find(hwModel.data());
     if (iter == modelNameByHwModel.end())
-    return Err(DracError::withErrno("Failed to get host info"));
+      return Err(DracError("Failed to get host info"));
 
     return String(iter->second);
-}
+  }
 
-fn os::GetDiskUsage() -> Result<DiskSpace> {
+  fn GetDiskUsage() -> Result<DiskSpace> {
     struct statvfs vfs;
 
     if (statvfs("/", &vfs) != 0)
-    return Err(DracError::withErrno("Failed to get disk usage"));
+      return Err(DracError("Failed to get disk usage"));
 
-  return DiskSpace { .used_bytes  = (vfs.f_blocks - vfs.f_bfree) * vfs.f_frsize,
-                     .total_bytes = vfs.f_blocks * vfs.f_frsize };
-}
+    return DiskSpace { .usedBytes  = (vfs.f_blocks - vfs.f_bfree) * vfs.f_frsize,
+                       .totalBytes = vfs.f_blocks * vfs.f_frsize };
+  }
 
-fn os::GetPackageCount() -> Result<u64> {
-  return Err(DracError(DracErrorCode::NotSupported, "Package count is not supported on macOS")); // TODO: Implement
-}
+  fn GetShell() -> Result<String> {
+    if (const Result<String> shellPath = GetEnv("SHELL")) {
+      // clang-format off
+      constexpr Array<Pair<StringView, StringView>, 5> shellMap {{
+        { "bash",    "Bash" },
+        {  "zsh",     "Zsh" },
+        { "fish",    "Fish" },
+        {   "nu", "Nushell" },
+        {   "sh",      "SH" }, // sh last because other shells contain "sh"
+      }};
+      // clang-format on
 
-fn os::GetShell() -> Result<String> {
-  return "Fish"; // TODO: Implement
-}
+      for (const auto& [exe, name] : shellMap)
+        if (shellPath->contains(exe))
+          return String(name);
+
+      return *shellPath; // fallback to the raw shell path
+    }
+
+    return Err(DracError(DracErrorCode::NotFound, "Could not find SHELL environment variable"));
+  }
+}; // namespace os
+
+namespace package {
+  fn GetHomebrewCount() -> Result<u64> {
+    u64 count = 0;
+
+    Array<fs::path, 2> cellarPaths {
+      "/opt/homebrew/Cellar",
+      "/usr/local/Cellar",
+    };
+
+    for (const auto& cellarPath : cellarPaths) {
+      if (std::error_code errc; !fs::exists(cellarPath, errc) || errc) {
+        if (errc && errc != std::errc::no_such_file_or_directory)
+          return Err(DracError(errc));
+
+        return Err(DracError(DracErrorCode::NotFound, "Homebrew Cellar directory not found at: " + cellarPath.string())
+        );
+      }
+
+      Result<u64> dirCount = GetCountFromDirectory("homebrew", cellarPath, true);
+
+      if (!dirCount) {
+        if (dirCount.error().code != DracErrorCode::NotFound)
+          return dirCount;
+
+        continue;
+      }
+
+      count += *dirCount;
+    }
+
+    return count;
+  }
+
+  fn GetMacPortsCount() -> Result<u64> {
+    const PackageManagerInfo macPortsInfo = {
+      .id         = "macports",
+      .dbPath     = "/opt/local/var/macports/registry/registry.db",
+      .countQuery = "SELECT COUNT(*) FROM ports WHERE state='installed';",
+    };
+
+    // Check if the database file exists before trying to query
+    std::error_code errc;
+    if (!fs::exists(macPortsInfo.dbPath, errc) || errc) {
+      if (errc && errc != std::errc::no_such_file_or_directory)
+        return Err(DracError(errc));
+
+      return Err(
+        DracError(DracErrorCode::NotFound, "MacPorts registry database not found at: " + macPortsInfo.dbPath.string())
+      );
+    }
+
+    return GetCountFromDb(macPortsInfo);
+  }
+} // namespace package
 
 #endif

src/util/error.hpp

@@ -99,6 +99,7 @@ namespace util {
         : message(std::format("{}: {}", context, std::system_category().message(errno))), location(loc) {
         using namespace matchit;
         using enum DracErrorCode;
+
         code = match(errno)(
           is | EACCES                                   = PermissionDenied,
           is | ENOENT                                   = NotFound,

src/util/types.hpp

@@ -11,8 +11,6 @@
 #include <utility>     // std::pair (Pair)
 #include <vector>      // std::vector (Vec)
 
-#include "include/matchit.h"
-
 namespace util::types {
   using u8  = std::uint8_t;  ///< 8-bit unsigned integer.
   using u16 = std::uint16_t; ///< 16-bit unsigned integer.