doc: improve 'prerequisites' section

Makefile

@@ -1,6 +1,11 @@
 
+PREFIX=/usr
+
 all: build
 
+prepare:
+	shards install
+
 build:
 	shards build --error-trace
 
@@ -8,4 +13,11 @@ spec: test
 test:
 	crystal spec --error-trace
 
-.PHONY: spec test build all
+install:
+	install \
+		-m 755 \
+		-o root \
+		bin/code-preloader \
+		$(PREFIX)/bin
+
+.PHONY: spec test build all prepare install

README.md

@@ -19,15 +19,43 @@ ChatGPT.
 repositories, performance may not be optimal due to processing constraints and
 the nature of interactions with ChatGPT.
 
-## Installation
+## Prerequisites
 
-To get started with Code-Preloader, ensure that you have Crystal language installed on your system. Follow these steps to install:
+Before installing and using Code-Preloader, make sure your system meets the
+following requirements:
+
+1. **Crystal Language**: Code-Preloader is written in Crystal. Ensure you have
+   the Crystal programming language installed on your system. For installation
+   instructions, refer to the [official Crystal language
+   website](https://crystal-lang.org/install/).
+
+2. **Required Libraries**: The following libraries are necessary for the proper
+   functioning of Code-Preloader:
+   * `libevent`: Used for asynchronous event notification.
+   * `libyaml`: Required for YAML parsing.
+   * `libmagic`: Utilized for file type detection.
+   * `make`: Used to define compilation rules
+
+On a Debian-based system, you can install these libraries using the following
+command:
 
 ```bash
-git clone https://code.apps.glenux.net/glenux/chatgpt-preloader
+sudo apt-get install libevent-dev libyaml-dev libmagic-dev make
+```
+
+## Installation
+
+To get started with Code-Preloader, ensure that you have the prerequisites
+installed on your system (see above).
+
+Then follow these steps to install:
+
+```bash
+git clone https://code.apps.glenux.net/glenux/code-preloader
 cd code-preloader
-shards install
+make prepare
-shards build
+make build
+make install
 ```
 
 ## Usage

Vagrantfile

@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+Vagrant.configure('2') do |config|
+  config.vm.box = 'debian/bookworm64'
+  config.vm.box_check_update = false
+
+  config.vm.provider 'virtualbox' do |vb|
+    vb.gui = false
+    vb.memory = '4096'
+  end
+
+  config.vm.provider "libvirt" do |lv|
+    # lv.cpus = "2"
+    lv.memory = "4096"
+    # enable nested virtualization
+    lv.nested = true
+    lv.cpu_mode = "host-model"
+  end
+
+ # config.vm.synced_folder ".", "/vagrant", type: "nfs", mount_options: ["vers=3,tcp"]
+ # config.vm.synced_folder "../../exercises", "/exercises", type: "nfs", mount_options: ["vers=3,tcp"]
+
+  config.vm.define 'demo' do |machine|
+    machine.vm.hostname = 'demo'
+
+    machine.vm.network 'forwarded_port', guest: 8080, host: 8080, host_ip: '127.0.0.1'
+    machine.vm.network 'forwarded_port', guest: 80, host: 1080, host_ip: '127.0.0.1'
+  end
+
+  config.vm.provision 'shell', path: 'misc/vagrant-provision/base.sh'
+end

misc/SCRIPT.md

@@ -0,0 +1,114 @@
+
+# Minimalist FUSE Manager
+
+---
+
+## Configuration
+
+Let's start by configuring `~/mnt/mfm.yml`!
+
+---
+
+---
+
+## Configuration
+
+We can add as many filesystems we want in the `filesystems:` list.
+
+---
+
+## Configuration
+
+Each filesystem has a `type:` and specific configuration parameters
+
+The current values supported by *mfm* are `gocryptfs`, `httpdirfs` and `sshfs`.
+
+---
+
+## Preparation
+
+Before using *mfm*, lets have a look at the `~/mnt/` directory.
+
+---
+
+---
+
+## Preparation
+
+Yes, it is empty!
+
+Don't worry, the mountpoint will be created automatically.
+
+---
+
+## Usage
+
+Ok. Now, simply run *mfm* and choose your favorite filesystem!
+
+In this demo, I will choose `Public - Debian Repository` which is a remote web
+page hosting debian packages and registy catalog.
+
+---
+
+---
+
+## Usage
+
+Hmmm...
+
+What happened?
+
+---
+
+## Usage
+
+A directory was created in `~/mnt`.
+
+It is filled with files and directories from a remote system, in which we can
+navigate.
+
+---
+
+## Usage
+
+Let's detach it now!
+
+Simply run *mfm* again, and choose the same filesystem.
+
+---
+
+---
+
+## Usage
+
+It is now detached, and the directory is empty again!
+
+---
+
+## Conclusion
+
+The *mfm* command works in the same way regardless of the filesystem selected.
+
+It's simple, fast and efficient.
+
+---
+
+## Conclusion
+
+The *mfm* project is still in its infancy.
+
+We're looking for contributors to test it, to improve it, to make it even more
+useful and enjoyable to use.
+
+---
+
+## Conclusion
+
+But if you're just a user, we're already happy.
+
+---
+
+## Conclusion
+
+Now it's your turn to use *mfm*!
+

misc/record-output.sh

@@ -0,0 +1,373 @@
+#!/bin/bash
+# shellcheck disable=SC2317
+
+set -u
+
+# parameters
+konsole=org.kde.konsole-2913641
+session=2
+SLEEP_LONG_READ="3"
+SLEEP_SHORT_READ="2"
+SLEEP_TRANSITION="0.4"
+SLEEP_COMMAND_BEFORE="0.4"
+SLEEP_COMMAND_AFTER="0.65"
+SLEEP_MICROPAUSE="0.25"
+SLEEP_TYPESPEED="0.10"
+
+qtype() {
+	qdbus "$konsole" "/Sessions/$session" sendText "$1"
+}
+
+qrun() {
+	qdbus "$konsole" "/Sessions/$session" runCommand "$1"
+}
+
+qctrlb() {
+	qdbus "$konsole" "/Sessions/$session" sendText $'\002'
+}
+
+qctrlc() {
+	qdbus "$konsole" "/Sessions/$session" sendText $'\003'
+}
+
+
+qtype_slow() {
+	echo -n "$1" \
+		| sed 's/\(.\)/\1\n/g' \
+		| while IFS="" read -r X ; do qtype "$X" ; sleep "$SLEEP_TYPESPEED" ; done
+}
+
+tmux_key() {
+	qctrlb
+	sleep 0.5
+	qtype "$1"
+}
+
+qtype_arrow_up() {
+	qtype $'\033'
+	qtype "[A"
+}
+
+qtype_arrow_down() {
+	qtype $'\033'
+	qtype "[B"
+}
+
+qtype_arrow_left() {
+	qtype $'\033'
+	qtype "[D"
+}
+
+qtype_arrow_right() {
+	qtype $'\033'
+	qtype "[C"
+}
+
+## cleanup
+
+qctrlc
+tmux_key "d"
+qctrlc
+
+qrun "clear"
+sleep "$SLEEP_MICROPAUSE"
+qrun "cd ~/src/mfm"
+sleep "$SLEEP_MICROPAUSE"
+qrun "cp doc/demo.mfm.yml ~/.config/mfm.yml"
+sleep "$SLEEP_MICROPAUSE"
+qrun "rm -f output.rec"
+sleep "$SLEEP_MICROPAUSE"
+qrun "tmux kill-session -t demo"
+sleep "$SLEEP_MICROPAUSE"
+qrun "mkdir -p /home/vagrant/mnt"
+sleep "$SLEEP_MICROPAUSE"
+qrun "fusermount -u \"/home/vagrant/mnt/Public - Remote Debian Repository\""
+sleep "$SLEEP_MICROPAUSE"
+qrun "rm -fr \"/home/vagrant/mnt/Public - Remote Debian Repository\""
+sleep "$SLEEP_MICROPAUSE"
+qrun "# cleanup done"
+sleep "$SLEEP_LONG_READ"
+
+## reset demo environment
+qrun "tmux new -s demo"
+sleep "$SLEEP_MICROPAUSE"
+tmux_key "c"
+qrun "cd ~/src/mfm"
+sleep "$SLEEP_MICROPAUSE"
+qrun "mdp --noslidenum doc/SCRIPT.md"
+sleep "$SLEEP_MICROPAUSE"
+
+tmux_key "c"
+qrun "export PATH=\$PATH:~/src/mfm/bin"
+sleep "$SLEEP_MICROPAUSE"
+qrun "export FZF_DEFAULT_OPTS=\"--height 40% --layout=reverse --border\""
+sleep "$SLEEP_MICROPAUSE"
+qrun "alias cat=\"batcat -p\""
+sleep "$SLEEP_MICROPAUSE"
+qrun "cd ~/src/mfm"
+sleep "$SLEEP_MICROPAUSE"
+qrun "clear"
+sleep "$SLEEP_MICROPAUSE"
+
+tmux_key "1"
+tmux_key ":"
+qrun "set -g status off"
+sleep "$SLEEP_MICROPAUSE"
+
+tmux_key "d"
+
+## record
+qrun "asciinema rec --cols 80 --rows 24 -c 'tmux attach' output.rec"
+
+# slide 1 (title)
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+# slide 2 (config file)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+# cmd 2 (show config file)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+
+tmux_key "2"
+qtype_slow "cat "
+sleep "$SLEEP_MICROPAUSE"
+qtype_slow "~/.config"
+sleep "$SLEEP_MICROPAUSE"
+qtype_slow "/mfm.yml"
+sleep "$SLEEP_MICROPAUSE"
+qrun ""
+sleep "$SLEEP_LONG_READ" # double
+sleep "$SLEEP_LONG_READ"
+tmux_key "1"
+
+# slide 3 (config options 1)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+# slide 4 (config options 2)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+# slide 5 (preparation - mnt)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+# demo 5 (show mnt)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+
+tmux_key "2"
+qtype_slow "cd "
+sleep "$SLEEP_MICROPAUSE"
+qtype_slow "~/mnt"
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+
+qtype_slow "ls"
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+sleep "$SLEEP_LONG_READ"
+tmux_key "1"
+
+# slide 6 (preparation - empty mnt!)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+# slide 7 (usage - run)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+# demo 7 (run mfm)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+
+tmux_key "2"
+qtype_slow "m"
+sleep "$SLEEP_MICROPAUSE"
+qtype_slow "f"
+sleep "$SLEEP_MICROPAUSE"
+qtype_slow "m"
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+sleep "$SLEEP_SHORT_READ"
+
+qtype_arrow_down
+sleep "$SLEEP_MICROPAUSE"
+qtype_arrow_down
+sleep "$SLEEP_MICROPAUSE"
+qtype_arrow_up
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+sleep "$SLEEP_LONG_READ"
+
+tmux_key "1"
+
+# slide 8 (usage - what?)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+# demo 8 (usage - what : show mnt)
+tmux_key "2"
+
+qtype_slow "ls"
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+sleep "$SLEEP_SHORT_READ"
+
+qtype_slow "cd \"Pub"
+sleep "$SLEEP_MICROPAUSE"
+qtype "lic - Remote Debian Repository\""
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+
+qtype_slow "ls"
+sleep "$SLEEP_MICROPAUSE"
+qtype $'\015'
+sleep "$SLEEP_SHORT_READ"
+
+qtype_slow "cd pool"
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+
+qtype_slow "ls"
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+sleep "$SLEEP_SHORT_READ"
+
+qtype_slow "cd main"
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+
+qtype_slow "ls"
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+sleep "$SLEEP_LONG_READ"
+
+tmux_key "1"
+
+# slide 9 (usage - explanation)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+# slide 10 (usage - prepare for detach)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+# demo 10 (run mfm for detach)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+
+tmux_key "2"
+
+qtype_slow "cd ~/mnt/"
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+
+qtype_slow "m"
+sleep "$SLEEP_MICROPAUSE"
+qtype_slow "f"
+sleep "$SLEEP_MICROPAUSE"
+qtype_slow "m"
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+sleep "$SLEEP_SHORT_READ"
+
+qtype_arrow_down
+sleep "$SLEEP_MICROPAUSE"
+qtype_arrow_down
+sleep "$SLEEP_MICROPAUSE"
+qtype_arrow_up
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+sleep "$SLEEP_LONG_READ"
+
+qtype_slow "ls"
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+sleep "$SLEEP_SHORT_READ"
+
+qtype_slow "cd \"Pub"
+sleep "$SLEEP_MICROPAUSE"
+qtype "lic - Remote Debian Repository\""
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+sleep "$SLEEP_SHORT_READ"
+
+qtype_slow "ls"
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+sleep "$SLEEP_SHORT_READ"
+
+qtype_slow "ls -la"
+sleep "$SLEEP_COMMAND_BEFORE"
+sleep "$SLEEP_COMMAND_BEFORE"
+qtype $'\015'
+sleep "$SLEEP_COMMAND_AFTER"
+sleep "$SLEEP_LONG_READ"
+
+tmux_key "1"
+
+# slide 11 (usage - detached)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+
+# slide 12 (conclusion)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+# slide 13 (conclusion)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+# slide 14 (conclusion)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+# slide 15 (conclusion)
+qtype " "
+sleep "$SLEEP_TRANSITION"
+sleep "$SLEEP_LONG_READ"
+
+# detach and clean
+tmux_key "d"
+
+qrun "tmux kill-session -t demo"
+qrun "termtosvg render output.rec output.svg"
+
+qrun "# success!"
+
+exit 0
+

misc/vagrant-provision/base.sh

@@ -0,0 +1,32 @@
+#!/bin/sh
+
+set -e
+set -u
+
+USER="$(test -d /vagrant && echo "vagrant" || echo "debian")"
+HOSTNAME="$(hostname)"
+
+export DEBIAN_FRONTEND=noninteractive
+
+echo "Installing required system packages"
+apt-get update --allow-releaseinfo-change
+apt-get install -y \
+   apt-transport-https \
+   ca-certificates \
+   git \
+   curl \
+   wget \
+   vim \
+   gnupg2 \
+   software-properties-common
+
+# echo "Installing mfm requirements"
+# apt-get install -y \
+#    fzf \
+#    sshfs \
+#    httpdirfs \
+#    libyaml-0-2 \
+#    libyaml-dev \
+#    libpcre3-dev \
+#    libevent-dev
+

misc/vagrant-provision/build.sh

@@ -0,0 +1,34 @@
+#!/bin/sh
+
+# install crystal
+set -e
+set -u
+
+USER="$(test -d /vagrant && echo "vagrant" || echo "debian")"
+HOSTNAME="$(hostname)"
+
+export DEBIAN_FRONTEND=noninteractive
+
+echo "Installing mfm requirements"
+apt-get install -y \
+   fzf \
+   sshfs \
+   httpdirfs \
+   libyaml-0-2 \
+   libyaml-dev \
+   libpcre3-dev \
+   libevent-dev
+
+# Installing asdf
+su - "$USER" -c "git config --global advice.detachedHead false"
+su - "$USER" -c "rm -rf ~/.asdf"
+su - "$USER" -c "git clone --quiet https://github.com/asdf-vm/asdf.git \
+					~/.asdf \
+					--branch v0.8.0"
+su - "$USER" -c "echo '. \$HOME/.asdf/asdf.sh' >> ~/.bashrc"
+
+su - "$USER" -c "source \$HOME/.asdf/asdf.sh \
+				 && asdf plugin add crystal 2>&1 \
+				 && asdf install crystal 1.7.3 >/dev/null 2>&1 \
+ 				 && asdf global  crystal 1.7.3"
+

misc/vagrant-provision/recording.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+# install crystal
+set -e
+set -u
+
+USER="$(test -d /vagrant && echo "vagrant" || echo "debian")"
+HOSTNAME="$(hostname)"
+
+export DEBIAN_FRONTEND=noninteractive
+
+echo "Installing required system packages"
+apt-get update --allow-releaseinfo-change
+
+echo "Installing recording requirements"
+apt-get install -y \
+   tmux \
+   mdp \
+   bat \
+   asciinema \
+   termtosvg
+