bin/dot

   1 #!/bin/bash
   2 # dot - a (mostly) one script dotfiles manager
   3 #
   4 # Copyright 2026 Edward Delaporte V
   5 # Licensed under AGPLv3 and later.
   6 #
   7 # Features
   8 #   symlinks - any file in $HOME/dotfiles/files may be symlinked
   9 #
  10 # dot setup
  11 #               install the necessary tools to $HOME/envs/dot
  12 #
  13 # dot list
  14 #   list available roles
  15 #
  16 # dot check
  17 #   check setup vs expected
  18 #
  19 # dot add ROLE
  20 #   add ROLE to localhost
  21 #
  22 # dot apply
  23 #               apply all added ROLES
  24
  25 # set -v
  26
  27 ENVS="$HOME/envs"
  28 ANSIBLE="$ENVS/ansible/bin/ansible-playbook"
  29 TASKFILE="$HOME/dot.$HOSTNAME.yaml"
  30
  31 read -d '' EMPTY_TASKFILE << EOF
  32 ---
  33 - name: Set up dotfiles on $HOSTNAME
  34   gather_facts: no
  35   hosts: localhost
  36   connection: local
  37
  38   tasks:
  39                 - name: Do nothing
  40       ansible.builtin.shell: echo "Nothing to do."
  41 EOF
  42
  43
  44 if [ "$1" == "setup" ]; then
  45   if [[ ! -f "$ANSIBLE" ]]; then
  46                 mkdir -p "$ENVS"
  47                 echo "Setting up Ansible in ~/envs/ansible"
  48                 cd $HOME/envs; python3 -m venv ansible
  49                 $HOME/envs/ansible/bin/pip install ansible jinja2
  50         fi
  51   if [[ -f "$ANSIBLE" ]]; then
  52                 echo "[ ok ]: Ansible setup at $ANSIBLE"
  53         fi
  54   if [[ ! -f "$TASKFILE" ]]; then
  55                 echo "Creating $TASKFILE"
  56                 echo "$EMPTY_TASKFILE" >> $TASKFILE
  57         fi
  58   if [[ -f "$TASKFILE" ]]; then
  59                 echo "[ ok ]: dot config at $TASKFILE"
  60         fi
  61 fi
  62
  63 if [ "$1" == "reset" ]; then
  64         read -n1 -p "Reset $TASKFILE? [y,N]" input
  65         if [[ ! $input == "Y" && ! $input == "y" ]]; then
  66                 echo "Aborted by user"
  67                 exit 1
  68         fi
  69         echo "$EMPTY_TASKFILE" > $TASKFILE
  70 fi
  71
  72
  73 if [ "$1" == "check" ]; then
  74         $ANSIBLE $TASKFILE --check --diff
  75 fi
  76
  77 if [ "$1" == "list" ]; then
  78   echo "May symlink:"
  79         cd $HOME/dotfiles/files
  80         ls -p | grep -v /
  81 fi
  82
  83
  84
  85
  86
  87 if [ "$1" == "link" ]; then
  88         if [ ! -n "$2" ]; then
  89                 echo "May symlink:"
  90                 cd $HOME/dotfiles/files
  91                 ls -p | grep -v /
  92         fi
  93
  94 read -d '' LINK_FILE << EOF
  95 ---
  96   tasks:
  97                 - name: Create a symbolic link
  98                         ansible.builtin.file:
  99                                 src: /file/to/link/to
 100                                 dest: /path/to/symlink
 101                                 owner: foo
 102                                 group: foo
 103                                 state: link
 104 EOF
 105
 106 fi
 107