updated README

README.md

@@ -1,25 +1,28 @@
 # fetchit
 
-fetchit is a terminal-based system information viewer written in C++. It works like neofetch/fastfetch and consists of a single file (`main.cpp`).
+`fetchit` is a Linux terminal system information viewer written in C++. It's a single-file program (`main.cpp`) that prints a colored distro logo (when available) alongside system and hardware info, similar to neofetch/fastfetch.
 
 ## Features
 
-- Displays distro, kernel, uptime, shell, CPU, GPU, RAM, and OS date information.
+- Shows: distro, kernel, uptime, shell, CPU, GPU, RAM, and "OS Date".
-- Detects distro name via `/etc/os-release`.
+- Distro detection via `/etc/os-release` (`PRETTY_NAME` for display, `ID` for logo matching).
-- Shows ASCII logos for supported distros.
+- Colored ASCII distro logos for supported distros.
-- Reads `/usr/share/hwdata/pci.ids` for GPU names; prints hex IDs if missing.
+- GPU detection by scanning PCI devices (`/sys/bus/pci/devices/`) for class `0x03*`.
-- Accounts for Unicode character width (for icon alignment).
+- GPU name resolution via `/usr/share/hwdata/pci.ids` (falls back to hex IDs if missing).
+- Accounts for Unicode character width for better alignment in terminals.
 
 ## Supported Distro Logos
 
+Logos are matched against `/etc/os-release` `ID`:
+
 `arch`, `cachyos`, `debian`, `ubuntu`, `fedora`, `manjaro`, `opensuse`, `pop`, `linuxmint`, `endeavouros`, `void`, `alpine`
 
 ## Requirements
 
 - Linux
-- A C++17-capable compiler (e.g., g++)
+- A C++17-capable compiler (default: `g++`)
-- A UTF-8 terminal with ANSI color support (for icons and colors)
+- UTF-8 locale + ANSI color support (recommended for icons/colors)
-- The following files/paths are read:
+- Reads the following files/paths:
   - `/etc/os-release`
   - `/etc/hostname`
   - `/proc/uptime`
@@ -31,34 +34,94 @@ fetchit is a terminal-based system information viewer written in C++. It works l
 
 ## Build
 
-```bash
+### Using the Makefile (recommended)
-g++ -std=c++17 -O2 -o fetchit main.cpp
-```
-
-## Run
 
 ```bash
-./fetchit
+make
 ```
 
-## Sample Output
+Binary output: `build/fetchit`
 
-```text
+Run:
-                              --- murat@baklava ---
 
-       /\           distro:     Arch Linux
+```bash
-      /  \          kernel:     7.0.10-arch1-1
+make run
-     /    \         uptime:     1 minutes
+```
-    /      \        shell:      /usr/bin/bash
+
-   /   ,,   \      󰍛 CPU:        12th Gen Intel(R) Core(TM) i5-12500H (16) @ 4.5 GHz
+### Manual build
-  /   |  |   \     󰾲 GPU:        AD107M [GeForce RTX 4060 Max-Q / Mobile] / Alder Lake-P GT2 [Iris Xe Graphics]
+
- /_-''    ''-_\     RAM:        15.2529 GB
+```bash
-                    OS Date:    6 months 17 days 3 hours 40 minutes
+g++ -O2 -Wall -Wextra -std=c++17 -pipe -o fetchit main.cpp
+```
+
+## Install / Uninstall
+
+Install:
+
+```bash
+sudo make install
+```
+
+Defaults:
+
+- `PREFIX=/usr/local`
+- `BINDIR=$(PREFIX)/bin`
+- Installs to: `/usr/local/bin/fetchit`
+
+Uninstall:
+
+```bash
+sudo make uninstall
+```
+
+Packaging-friendly variables:
+
+- `DESTDIR` (staging root)
+- `PREFIX`, `BINDIR`
+
+Example:
+
+```bash
+make install PREFIX=/usr BINDIR=/usr/bin DESTDIR=/tmp/pkgroot
+```
+
+## Distribution Archive
+
+Create a tar.gz containing the built binary:
+
+```bash
+make dist
+```
+
+Output: `dist/fetchit-<version>-linux-x86_64-gnu.tar.gz`
+
+`<version>` is derived from:
+`git describe --tags --dirty --always` (when available)
+
+Full release pipeline:
+
+```bash
+make release
 ```
 
 ## Notes
 
-- `OS Date` is based on the creation time of `/etc/hostname`.
+- `shell` is taken from `$SHELL` and printed as the basename (e.g. `bash`, not `/usr/bin/bash`).
-- If no ASCII logo is found, only the info list is printed.
+- `OS Date` is computed from `/etc/hostname` file metadata (`ctime`) as an elapsed duration; it may not equal the OS install date.
-- The distro logo is displayed in color via ANSI escape codes.
+- If `pci.ids` is unavailable, GPU(s) are printed as hex IDs like `0xVVVV:0xDDDD`.
-- This tool targets Linux systems and is not expected to work on non-Linux OSes.
+- If no distro logo matches, the logo section will be empty and only info lines are shown.
+
+## Sample Output
+
+```text
+                               --- user@host ---
+
+      /\             distro:      Arch Linux
+     /  \            kernel:      7.0.10-arch1-1
+    /    \           uptime:      12 minutes
+   /      \          shell:       bash
+  /   ,,   \        󰍛 CPU:         ... (N) @ X.XX GHz
+ /   |  |   \       󰾲 GPU:         ...
+/_-''    ''-_\       RAM:         15.25 GB
+                     OS Date:     6 months 17 days 3 hours 40 minutes
+```