dotfiles.git

1) #!/usr/bin/env bash

2) set -eu -o pipefail # See: https://sipb.mit.edu/doc/safe-shell/
3) 

4) declare -r script_name=$(basename "${BASH_SOURCE[0]}")

5) declare -r backup_dir="$HOME"/backup_of_dotfiles_$(date "+%Y-%m-%d_%H%M%S")

6) declare -a dotfiles=(".bashrc" ".bash_profile" ".vimrc" ".editrc" ".gitconfig"

7)                      ".gitignore" ".inputrc" ".tmux.conf" ".ssh/config" ".ripgreprc"

8)                      ".gdbinit" ".config/gitui/key_bindings.ron" ".visidatarc"

9)                      ".config/i3/config" ".config/i3status/config"

10)                      ".config/dunst/dunstrc" ".config/nvim/init.vim"
11)                      ".config/nvim/colors/nvim_desert.vim")

12) declare -i dry_run=0

13) 
14) ## exit the shell (with status 2) after printing the message
15) usage() {
16)     echo "\

17) $script_name -hn

18)     -h      Print this help text
19)     -n      Perform a dry run, to see what'll change
20) "
21)     exit 2;
22) }
23) 
24) ## Process the options
25) while getopts "hn" OPTION
26) do
27)   case $OPTION in
28)     h) usage;;

29)     n) dry_run=1;;

30)     \?) usage;;
31)   esac
32) done

33) 

34) if [ ! -d "${backup_dir}"/.ssh ]; then

35)     ((dry_run==0)) && mkdir -p "${backup_dir}"/.ssh

36) fi
37) 
38) # Move original dot files to backup

39) for i in "${dotfiles[@]}"
40) do

41)     if [ -e "$HOME"/"$i" ]; then
42)         if ! cmp --silent "$HOME"/"$i" "$i" ; then

43)             echo "$i" will be changed as follows:

44)             diff "$HOME"/"$i" "$i" || true

45)             if [ $dry_run -eq 0 ]; then

46)                 mv "$HOME"/"$i" "${backup_dir}"/"$i"

47)                 # Consider using symbolic links instead
48)                 # so pulling updates automatically apply

49)                 cp "$i" "$HOME"/"$i"
50)                 echo "# vimdiff \"$HOME/$i\" \"${backup_dir}/$i\""

51)             else
52)                 # Provide a diff that can still be used
53)                 echo "# vimdiff \"$i\" \"$HOME/$i\""

54)             fi

55)             echo

56)         else
57)             echo No change to "$i".
58)         fi

59)     else
60)         echo "$i" will be added to HOME.

61)         ((dry_run==0)) && mkdir -p "$HOME"/"$(dirname "$i")" && cp "$i" "$HOME"/"$i"

62)     fi
63) done

64) 

65) if ! diff -qr "$HOME"/.vim .vim > /dev/null ; then

66)     if [ $dry_run -eq 0 ]; then

67)         if [ -d "$HOME"/.vim ]; then
68)             mv "$HOME"/.vim "${backup_dir}"

69)         fi

70)         cp -r .vim "$HOME"
71)         if [ -d "${backup_dir}"/.vim ]; then

72)             # Copy back proprietary file types (ex. ftdetect/my.vim), if any.

73)             # Print only the files that got moved back into ~/.vim

74)             cp -rnv "${backup_dir}"/.vim "$HOME" | grep " -> " | cut -d " " -f3 | \

75)                 xargs -I{} sh -c "test -f {} && echo Restored {}" || true

76)         fi

77)     fi

78)     if [[ -d "${backup_dir}"/.vim ]]; then

79)         if ! diff -qr "$backup_dir/.vim" "$HOME/.vim" ; then
80)             echo "# diff -qr \"$backup_dir/.vim\" \"$HOME/.vim\""
81)             echo
82)         else
83)             echo No change to the .vim/ directories after restoring proprietary files.
84)         fi

85)     else

86)         echo No "${backup_dir}"/.vim/ from which to restore proprietary files \(yet\).

87)     fi

88) else

89)     echo No change to the .vim/ directories.

90) fi

91) 

92) # TODO: Neovim's plugins go in ~/.local/share/nvim/site/plugin/
93) # https://neovim.io/doc/user/usr_05.html
94) if ! diff -qr "$HOME"/.local/share/nvim/site/plugin .local/share/nvim/site/plugin > /dev/null ; then
95)     if [ $dry_run -eq 0 ]; then
96)         if [ -d "$HOME"/.local/share/nvim/site/plugin/ ]; then
97)                 mkdir -p "${backup_dir}"/.local/share/nvim/site/plugin
98)                 mv "$HOME"/.local/share/nvim/site/plugin/* "${backup_dir}"/.local/share/nvim/site/plugin/
99)         else
100)             mkdir -p "$HOME"/.local/share/nvim/site/plugin
101)         fi
102)         cp -r .local/share/nvim/site/plugin/* "$HOME"/.local/share/nvim/site/plugin/
103)     fi
104)     echo Check the plugins in .local/share/nvim/site/plugin/
105) else
106)     echo No change to the .local/share/nvim/site/plugin/ directories.
107) fi
108) 

109) # Make a directory for vim undo

110) if [ ! -d "$HOME"/.vim_undo ]; then

111)     ((dry_run==0)) && mkdir -p "$HOME"/.vim_undo

112) fi
113) 

114) # I have device local secrets in .localrc and a github secret in .gitconfig.local
115) for i in ".gitconfig.local" ".localrc"
116) do

117)     if [ ! -f "$HOME"/"$i" ]; then

118)         echo Consider copying $i from a similar acct. \(\'touch \"\$HOME/$i\"\' to hide this msg.\)
119)     fi
120) done
121) 

122) if [ $dry_run -eq 0 ]; then

123)     echo Your old dotfiles are backed up to "${backup_dir}"

124)     echo Done. Check http://config.dlma.com for more.
125) else

126)     echo Your old dotfiles would have been backed up to "${backup_dir}"