replace ansible with bootstrap script

ansible.cfg

@@ -1,6 +0,0 @@
-[defaults]
-interpreter_python = auto_silent
-inventory = ./inventory
-nocows = True
-roles_path = ./roles
-

bootstrap

@@ -0,0 +1,198 @@
+#!/bin/sh
+set -eu
+
+DRY_RUN=false
+DEFAULT_GIT_USER="Fernando Schauenburg"
+DEFAULT_GIT_EMAIL="fernando@schauenburg.me"
+
+XDG_CACHE_HOME="${XDG_CACHE_HOME:-$HOME/.cache}"
+XDG_CONFIG_HOME="${XDG_CONFIG_HOME:-$XDG_CONFIG_HOME}"
+XDG_DATA_HOME="${XDG_DATA_HOME:-$home/.local/share}"
+
+DIRS=$(cat <<EOF
+${HOME}/.local/bin
+${HOME}/.local/etc/git
+${HOME}/.ssh
+${XDG_CONFIG_HOME}/alacritty
+${XDG_CONFIG_HOME}/dircolors
+${XDG_CONFIG_HOME}/git
+${XDG_CONFIG_HOME}/mintty
+${XDG_CONFIG_HOME}/python
+${XDG_CONFIG_HOME}/readline
+${XDG_CONFIG_HOME}/tmux
+${XDG_CONFIG_HOME}/vim
+${XDG_CONFIG_HOME}/vim/autoload
+${XDG_DATA_HOME}/bash
+${XDG_DATA_HOME}/bash-completion/completions
+${XDG_DATA_HOME}/less
+${XDG_DATA_HOME}/python
+${XDG_DATA_HOME}/vim
+${XDG_DATA_HOME}/vim/plugged
+EOF
+)
+
+DOTFILES=$(cat <<EOF
+files/bashrc                ${HOME}/.bash_profile
+files/bashrc                ${HOME}/.bashrc
+files/ssh_config            ${HOME}/.ssh/config
+files/alacritty.yml         ${XDG_CONFIG_HOME}/alacritty/alacritty.yml
+files/gitconfig             ${XDG_CONFIG_HOME}/git/config
+files/gitignore             ${XDG_CONFIG_HOME}/git/ignore
+files/inputrc               ${XDG_CONFIG_HOME}/readline/inputrc
+files/minttyrc              ${XDG_CONFIG_HOME}/mintty/config
+files/plug.vim              ${XDG_CONFIG_HOME}/vim/autoload/plug.vim
+files/python-startup.py     ${XDG_CONFIG_HOME}/python/startup.py
+files/tmux-colors.conf      ${XDG_CONFIG_HOME}/tmux/tmux-colors.conf
+files/tmux.conf             ${XDG_CONFIG_HOME}/tmux/tmux.conf
+files/vimrc                 ${XDG_CONFIG_HOME}/vim/vimrc
+EOF
+)
+
+rst=$(tput      sgr0)
+red=$(tput      setaf  1)
+green=$(tput    setaf  2)
+yellow=$(tput   setaf  3)
+blue=$(tput     setaf  4)
+
+heading()   { printf '%s\n' "${blue}=====  $1  ==========${rst}"; }
+info()      { printf '%s\n' "${green}${1}${rst}"; }
+warn()      { printf '%s\n' "${yellow}${1}${rst}"; }
+error()     { printf '%s\n' "${red}${1}${rst}"; }
+
+directory_present() {  # Make sure directory $1 exists.
+    if [ -d "$1" ]; then
+        info "OK: $1"
+    else
+        warn "creating $1"
+        $DRY_RUN || mkdir -p "$1"
+    fi
+}
+
+file_absent() {  # Make sure file $1 does not exist.
+    if [ ! -f "$1" ]; then
+        info "OK: $1"
+    else
+        warn "removing $1"
+        $DRY_RUN || rm "$1"
+    fi
+}
+
+file_touch() {  # Make sure file $1 exists (content is irrelevant).
+    if [ -f "$1" ]; then
+        info "OK: $1"
+    else
+        warn "creating $1"
+        $DRY_RUN || touch "$1"
+    fi
+}
+
+file_link() {  # Make sure $1 is a link to $2.
+    target="$(realpath "$2")"
+    if [ "$(readlink "$1")" = "$target" ]; then
+        info "OK: $1"
+    else
+        warn "linking $1 -> $target"
+        $DRY_RUN || ln -sf "$target" "$1"
+    fi
+}
+
+file_content() {  # Ensure $1 and $2 contents are equal, updating $1 if needed.
+    if diff "$1" "$2" >/dev/null 2>&1; then
+        info "OK: $1"
+    else
+        warn "overwriting $1 with $2:"
+        cat "$2"
+        $DRY_RUN || cp -f "$2" "$1"
+    fi
+}
+
+task_gather_user_info() {
+    heading "Gather user information"
+    printf 'git name [%s]: ' "$DEFAULT_GIT_USER"
+    read -r git_user
+    printf 'git e-mail [%s]: ' "$DEFAULT_GIT_EMAIL"
+    read -r git_email
+}
+
+task_remove_bash_profile() {
+    heading "Remove pre-installed bash profile"
+    for f in .bash_logout .profile; do
+        file_absent "$HOME/$f"
+    done
+}
+
+task_ensure_directories() {
+    heading "Ensure existence of directories used by dotfiles"
+    echo "$DIRS" | while read -r d; do directory_present "$d"; done
+}
+
+task_link_dotfiles() {
+    heading "Link dotfiles"
+    echo "$DOTFILES" | while read -r dest src; do
+        file_link "$src" "$dest"
+    done
+}
+
+task_deploy_templates() {
+    heading "Deploy templates"
+    temp_git="$(mktemp)"
+    cat >"$temp_git" <<EOF
+#         *************************************
+#         *       DO NOT EDIT THIS FILE       *
+#         *************************************
+#
+# This file was generated by the bootstrap script and any changes will be
+# overwritten the next time the it is run. For local settings, use this
+# instead:
+#
+#   ~/.local/etc/git/config
+#
+EOF
+    git config -f "$temp_git" user.name "${git_user:-$DEFAULT_GIT_USER}"
+    git config -f "$temp_git" user.email "${git_email:-$DEFAULT_GIT_EMAIL}"
+    file_content "$HOME/.local/etc/git/config.host" "$temp_git"
+}
+
+task_link_local_commands() {
+    heading "Link local commands"
+    for cmd in bin/*; do
+        file_link "$HOME/.local/bin/$(basename "$cmd")" "$cmd"
+    done
+}
+
+task_link_dircolors() {
+    heading "Link dircolors"
+    for f in dircolors/*; do
+        file_link "$XDG_CONFIG_HOME/dircolors/$(basename "$f")" "$f"
+    done
+}
+
+task_make_logins_silent() {
+    heading "Make logins silent"
+    file_touch "$HOME/.hushlogin"
+}
+
+task_install_vim_plugins() {
+    heading "Install vim plugins"
+    if command -v vim >/dev/null 2>&1; then
+        warn "Installing vim plugins"
+        $DRY_RUN || vim -nes -u "$XDG_CONFIG_HOME/vim/vimrc" -c 'PlugInstall | qall!'
+    else
+        error "vim is not installed; skipping plugin installation..."
+    fi
+}
+
+main() {
+    task_gather_user_info
+    task_remove_bash_profile
+    task_ensure_directories
+    task_link_dotfiles
+    task_deploy_templates
+    task_link_local_commands
+    task_link_dircolors
+    task_make_logins_silent
+    task_install_vim_plugins
+}
+
+main
+

inventory

@@ -1,5 +0,0 @@
-localhost
-
-[all:vars]
-ansible_connection=local
-

local.yml

@@ -1,15 +0,0 @@
-- name: Make myself at home :)
-  hosts: all
-
-  vars_prompt:
-  - name: git_user
-    private: no
-    default: Fernando Schauenburg
-  - name: git_email
-    private: no
-    default: fernando@schauenburg.me
-
-  roles:
-  - dotfiles
-  - packages
-

roles/dotfiles/tasks/main.yml

@@ -1,112 +0,0 @@
----
-- name: remove pre-installed bash profile
-  file:
-    path: "{{ item }}"
-    state: absent
-  loop:
-  - ~/.bash_logout
-  - ~/.profile
-
-
-- name: ensure existence of directories used by dotfiles
-  file:
-    path: "{{ item }}"
-    state: directory
-  loop:
-  - ~/.config/alacritty
-  - ~/.config/dircolors
-  - ~/.config/git
-  - ~/.config/mintty
-  - ~/.config/python
-  - ~/.config/readline
-  - ~/.config/tmux
-  - ~/.config/vim
-  - ~/.config/vim/autoload                      # vim plugin manager
-  - ~/.local/bin                                # local commands
-  - ~/.local/etc/git                            # local git config
-  - ~/.local/share/bash                         # for bash history
-  - ~/.local/share/bash-completion/completions  # custom bash completions
-  - ~/.local/share/less                         # less history
-  - ~/.local/share/python                       # python history
-  - ~/.local/share/vim                          # viminfo
-  - ~/.local/share/vim/plugged                  # vim plugins
-  - ~/.ssh
-
-
-- name: link dotfiles
-  file:
-    src: "{{ role_path }}/files/{{ item.src }}"
-    dest: "{{ item.dest }}"
-    state: link
-    force: yes
-  loop:
-  - { src: alacritty.yml,       dest: ~/.config/alacritty/alacritty.yml }
-  - { src: bashrc,              dest: ~/.bash_profile }
-  - { src: bashrc,              dest: ~/.bashrc }
-  - { src: gitconfig,           dest: ~/.config/git/config }
-  - { src: gitignore,           dest: ~/.config/git/ignore }
-  - { src: inputrc,             dest: ~/.config/readline/inputrc }
-  - { src: minttyrc,            dest: ~/.config/mintty/config }
-  - { src: plug.vim,            dest: ~/.config/vim/autoload/plug.vim }
-  - { src: python-startup.py,   dest: ~/.config/python/startup.py }
-  - { src: ssh_config,          dest: ~/.ssh/config }
-  - { src: tmux-colors.conf,    dest: ~/.config/tmux/tmux-colors.conf }
-  - { src: tmux.conf,           dest: ~/.config/tmux/tmux.conf }
-  - { src: vimrc,               dest: ~/.config/vim/vimrc }
-
-
-- name: deploy templates
-  template:
-    src: "{{ item.src }}"
-    dest: "{{ item.dest }}"
-  loop:
-  - src: gitconfig.host.j2
-    dest: ~/.local/etc/git/config.host
-
-
-- name: link local commands
-  file:
-    src: "{{ item }}"
-    dest: ~/.local/bin/{{ item | basename }}
-    state: link
-    force: yes
-  with_fileglob:
-  - "{{ role_path }}/files/bin/*"
-
-
-- name: link dircolors
-  file:
-    src: "{{ item }}"
-    dest: ~/.config/dircolors/{{ item | basename }}
-    state: link
-    force: yes
-  with_fileglob:
-  - "{{ role_path }}/files/dircolors/*"
-
-
-- block:
-  - name: hushlogin exists?
-    stat:
-      path: ~/.hushlogin
-    register: hush
-
-  - name: create hushlogin
-    when: hush.stat.exists == false
-    file:
-      path: ~/.hushlogin
-      state: touch
-
-
-- block:
-  - name: vim plugins installed?
-    find:
-      paths: ~/.local/share/vim/plugged
-      file_type: directory
-    register: vim_plugins
-
-  - name: install vim plugins
-    when: vim_plugins.matched|int == 0
-    shell: vim -nes -u ~/.config/vim/vimrc -c 'PlugInstall | qall!'
-    register: result_vim_plugins
-    failed_when: result_vim_plugins.rc != 0
-

roles/dotfiles/templates/gitconfig.host.j2

@@ -1,19 +0,0 @@
-#         *************************************
-#         *       DO NOT EDIT THIS FILE       *
-#         *************************************
-#
-# This file was generated by Ansible and any changes will be overwritten the
-# next time the playbook is run. For local settings, use this instead:
-#
-#   ~/.local/etc/git/config
-#
-
-[user]
-    name = {{ git_user }}
-    email = {{ git_email }}
-
-{% if ansible_os_family == 'Darwin' %}
-[credential]
-    helper = osxkeychain
-{% endif %}
-

roles/packages/tasks/main.yml

@@ -1,74 +0,0 @@
----
-- name: install apt packages
-  when: ansible_facts['os_family']|lower == "debian"
-  become: yes
-  apt:
-    state: latest
-    update_cache: yes
-    name:
-    - bash
-    - bash-completion
-    - curl
-    - exa
-    - exuberant-ctags
-    - ffmpeg
-    - git
-    - git-crypt
-    - git-lfs
-    - gpg
-    - htop
-    - nmap
-    - psmisc
-    - python3
-    - python3-pip
-    - shellcheck
-    - sqlite
-    - stow
-    - tmux
-    - tree
-    - vifm
-    - vim
-    - wget
-    - youtube-dl
-
-
-- name: install homebrew packages
-  when: ansible_facts['os_family']|lower == "darwin"
-  homebrew:
-    state: latest
-    update_homebrew: yes
-    name:
-    - bash
-    - bash-completion
-    - coreutils
-    - ctags
-    - curl
-    - exa
-    - exiftool
-    - ffmpeg
-    - findutils
-    - git
-    - git-crypt
-    - git-lfs
-    - gnu-sed
-    - gpg
-    - grep
-    - gzip
-    - htop
-    - imagemagick
-    - jupyter
-    - make
-    - nmap
-    - pstree
-    - python3
-    - reattach-to-user-namespace
-    - shellcheck
-    - sqlite
-    - stow
-    - tmux
-    - tree
-    - vifm
-    - vim
-    - wget
-    - youtube-dl
-