qemush : ajout fonction depcheck et documentation, ajout module diskpath

README.md

@@ -51,8 +51,12 @@ need it
 - `screen` - for process supervision
 - `source-highlight` - for syntax highlighting when displaying launching
 scripts
+- `diskpath` - see [Installation instructions](#installation-instructions)
+[Add `qemush` modules in `~qemu/bin`](#add-qemush-modules-in-qemubin)
 - any text editor - used for builtin function to edit launching scripts
 
+You can run `qemush depcheck` to check if all dependencies are met.
+
 ## Installation instructions
 
 ### QEMU user and group
@@ -77,6 +81,16 @@ 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 :
+
+```sh
+qemush run 'mkdir -p ~/bin && cp -v qemu/bin/*'
+```
+
 ### Extra: add `first-free-port` in `PATH`
 
 `first-free-port` is a small C program designed accordingly to the Unix

bin/qemush

@@ -48,6 +48,7 @@ ${name}: usage:
   ${name} help                             - show this help
   ${name} add <path to script> [<VM name>] - add a launching script
   ${name} run <command>                    - run shell input as user qemu
+  ${name} depcheck                         - check if script dependencies are met
 EOF
 }
 
@@ -127,6 +128,20 @@ public_run() {
     exec sh -c "$*"
 }
 
+bold_print() {
+    printf '\033['"${1}m${2}"'\033[0m: %s\n' "$3"
+}
+
+public_depcheck() {
+    for i in diskpath screen ls diskpath source-highlight; do
+        if command -v "$i" > /dev/null; then
+            bold_print '1;32' OK "$i"
+        else
+            bold_print '1;31' KO "$i"
+        fi
+    done
+}
+
 function="$1"
 shift
 

qemu/bin/diskpath

@@ -0,0 +1,2 @@
+#!/bin/sh
+printf '%s/%s.qcow2\n' ~/images "$1"