README : remplacement de la documentation d'installation par une description du Makefile

README.md

@@ -75,36 +75,27 @@ For ease of use, you need to grant every user in the `qemu` group via
 `sudo` the right to execute commands as `qemu`. You can find an example
 `sudoers` rule in this repo's `etc/sudoers.d` folder.
 
-### Add `qemush` in the `PATH`
+### Via `Makefile` (recommended)
 
-Use your preferred way to add the `qemush` script to a folder of `PATH`.
-Recommended: copy the script in `/usr/local/bin` to make it effortlessly
-system wide.
-
-### Add `qemush` modules in `~qemu/bin`
-
-`qemush` needs reusable script modules like `diskpath` in its custom `bin`
-folder located at `~qemu/bin`. You can add them directly via `qemush` from
-this repo via the following command :
+Just run the following command at the root of this repository to install
+`qemush` (previous step is **mandatory**) :
 
 ```sh
-qemush do 'mkdir -p ~/bin && cp -v qemu/bin/* "$_"'
+make
 ```
 
-### Extra: add `first-free-port` in `PATH`
+> And what if I don't want to bindly run this obscure `Makefile` ???
 
-`first-free-port` is a small C program designed accordingly to the Unix
-philosophy to show in `stdout` the first free (not listening) TCP port
-after `argv[1]`, or `argv[1]` if it is free. You will need it to allocate
-ports to protocols like SPICE in your launching scripts (example in
-`qemu/bin/*-spice`).
+You'd be right. The next section is the exhaustive list of steps handled
+by the `Makefile` for the installation process.
 
-Example `qemush` command to add the program to a local `qemu` `bin` folder
-:
+### Manual installation (what does the `Makefile` do)
 
-```sh
-qemush do 'mkdir ~/bin && cc -o "${_}/first-free-port" src/first-free-port.c'
-```
+- Create `images`, `launchers` and `bin` directories in `~qemu`
+- Copy `qemush` scripts parts from `qemu/bin` in `~qemu/bin` with mode
+`740`
+- Compile C programs from `src` in `~qemu/bin` with mode `740`
+- Copy `bin/qemush` to `/usr/local/bin/qemush` with mode `755`
 
 ## Usage