dotfiles/dotprofile.org

.profile

• PS1
• PATH
  • haskell
• Functions
  • General
  • git
  • haskell
  • nix
  • tmux
  • x
• Aliases
  • General
  • osx
  • git
  • haskell
  • mosh
  • tmux
• Final PATH

~/.profile setup in all its peculiarities.

PS1

  # -*- mode: Shell-script; -*-
  # Common .profile
  #
  # DO NOT EDIT, managed by org mode
  _uname=$(uname)
  _uname_n=$(uname -n)
  _hostname=$(hostname)
  export _uname _uname_n _hostname

OSX uses hostname -s for getting hostname

_host=$(hostname -s)

Otherwise we just use what uname -n sent.

_host=${_host:=${_uname_n}}

PATH

haskell

PATH="${PATH}:${HOME}/.cabal/bin"

Functions

General

Generally useful functions.

# cat out a : separated env variable
# variable is the parameter
cat_env()
{
  set | grep '^'"$1"'=' > /dev/null 2>&1 && eval "echo \$$1" | tr ':' '
' | awk '!/^\s+$/' | awk '!/^$/'
}

# Convert a line delimited input to : delimited
to_env()
{
  awk '!a[$0]++' < /dev/stdin | tr -s '
' ':' | sed -e 's/\:$//' | awk 'NF > 0'
}

# Unshift a new value onto the env var
# first arg is ENV second is value to unshift
# basically prepend value to the ENV variable
unshift_env()
{
  new=$(eval "echo $2; echo \$$1" | to_env)
  eval "$1=${new}; export $1"
}

# Opposite of above, but echos what was shifted off
shift_env()
{
  first=$(cat_env "$1" | head -n 1)
  rest=$(cat_env "$1" | awk '{if (NR!=1) {print}}' | to_env)
  eval "$1=$rest; export $1"
  echo "${first}"
}

# push $2 to $1 on the variable
push_env()
{
  have=$(cat_env "$1")
  new=$(printf "%s
%s" "$have" "$2" | to_env)
  eval "$1=$new; export $1"
}

# Remove a line matched in $HOME/.ssh/known_hosts for when there are legit
# host key changes.
nukehost()
{
  if [ -z "$1" ]; then
    echo "Usage: nukehost <hostname>"
    echo "       Removes <hostname> from ssh known_host file."
  else
    sed -i -e "/$1/d" ~/.ssh/known_hosts
  fi
}

# Cheap copy function to make copying a file via ssh from one host
# to another less painful, use pipeviewer to give some idea as to progress.
sshcopy()
{
  if [ -z "$1" -o -z "$2" ]; then
    echo "Usage: copy source:/file/location destination:/file/location"
  else
    srchost="$(echo "$1" | awk -F: '{print $1}')"
    src="$(echo "$1" | awk -F: '{print $2}')"
    dsthost="$(echo "$2" | awk -F: '{print $1}')"
    dst="$(echo "$2" | awk -F: '{print $2}')"
    size=$(ssh "$srchost" du -hs "$src" 2> /dev/null)
    if [ "${size}" = "" ]; then
      echo "${src} doesn't seem to exist on ${srchost}"
      return 1
    fi
    size=$(echo "${size}" | awk '{print $1}')
    echo "Copying $size to $dst"
    (ssh "$srchost" "/bin/cat $src" | pv -cb -N copied - | ssh "$dsthost" "/bin/cat - > $dst") 2> /dev/null
  fi
}

# extract function to automate being lazy at extracting archives.
extract()
{
  if [ -f "$1" ]; then
    case ${1} in
      *.tar.bz2|*.tbz2|*.tbz)  bunzip2 -c "$1" | tar xvf -;;
      *.tar.gz|*.tgz)          gunzip -c "$1" | tar xvf -;;
      *.tz|*.tar.z)            zcat "$1" | tar xvf -;;
      *.tar.xz|*.txz|*.tpxz)   xz -d -c "$1" | tar xvf -;;
      *.bz2)                   bunzip2 "$1";;
      *.gz)                    gunzip "$1";;
      *.jar|*.zip)             unzip "$1";;
      *.rar)                   unrar x "$1";;
      *.tar)                   tar -xvf "$1";;
      *.z)                     uncompress "$1";;
      *.rpm)                   rpm2cpio "$1" | cpio -idv;;
      *)                       echo "Unable to extract <$1> Unknown extension."
    esac
  else
    print "File <$1> does not exist."
  fi
}

# Tcsh compatibility so I can be a lazy bastard and paste things directly
# if/when I need to.
setenv()
{
  export "$1=$2"
}

# Just to be lazy, set/unset the DEBUG env variable used in my scripts
debug()
{
  if [ -z "$DEBUG" ]; then
    if [ -z "$1" ]; then
      echo Setting DEBUG to "$1"
      setenv DEBUG "$1"
    else
      echo Setting DEBUG to default
      setenv DEBUG default
    fi
  else
    echo Unsetting DEBUG
    unset DEBUG
  fi
}

login_shell()
{
  [ "$-" = "*i*" ]
}

# Yeah, sick of using the web browser for this crap
# Use is NUM FROM TO and boom get the currency converted from goggle.
cconv()
{
  curl -L --silent\
       "https://www.google.com/finance/converter?a=$1&from=$2&to=$3" \
         | grep converter_result \
             | perl -pe 's|[<]\w+ \w+[=]\w+[>]||g;' -e 's|[<][/]span[>]||'
}

git

maybe_git_repo()
{
  # assume https if input doesn't contain a protocol
  proto=https
  destination=${HOME}/src
  echo "${1}" | grep '://' > /dev/null 2>&1
  [ $? = 0 ] && proto=$(echo "${1}" | sed -e 's|[:]\/\/.*||g')
  git_dir=$(echo "${1}" | sed -e 's|.*[:]\/\/||g')
  rrepo="${proto}://${git_dir}"

  # strip user@, :NNN, and .git from input uri's
  repo="${destination}/"$(echo "${git_dir}" |
    sed -e 's/\.git$//g' |
    sed -e 's|.*\@||g' |
    sed -e 's|\:[[:digit:]]\{1,\}\/|/|g' |
    tr -d '~')

  if [ ! -d "${repo}" ]; then
    git ls-remote "${rrepo}" > /dev/null 2>&1
    if [ $? = 0 ]; then
      mkdir -p "${repo}"
      echo "git clone ${rrepo} ${repo}"
      git clone --recursive "${rrepo}" "${repo}"
    else
      echo "${rrepo} doesn't look to be a git repository"
    fi
  fi
  [ -d "${repo}" ] && cd "${repo}"
}

gh()
{
  maybe_git_repo "https://github.com/${1}"
}

bb()
{
  maybe_git_repo "https://bitbucket.org/${1}"
}

haskell

hmap()
{
  ghc -e "interact ($*)"
}

hmapl()
{
  hmap "unlines.($*).lines"
}

hmapw()
{
  hmapl "map (unwords.($*).words)"
}

nix

mk_nix_shell()
{
  cabal2nix --sha256="0" . \
    | perl -0777 -p -e 's/{.+}:/{ haskellPackages ? (import <nixpkgs> {}).haskellPackages }:/s' \
    | sed -E -e 's/(cabal\.mkDerivation)/with haskellPackages; \1/' -e 'sXsha256 = "0";Xsrc = "./.";X' \
          > shell.nix;
}

nix_env_setup()
{
  # The nix installer put something like this into the .profile.
  # BAD INSTALLER NO COOKIE!
  if [ -e ${HOME}/.nix-profile/etc/profile.d/nix.sh ]; then
      . ${HOME}/.nix-profile/etc/profile.d/nix.sh;
      export NIX_PATH=${HOME}/src/github.com/NixOS/nixpkgs:nixpkgs=${HOME}/src/github.com/NixOS/nixpkgs
      export NIX_CFLAGS_COMPILE="-idirafter /usr/include"
      export NIX_CFLAGS_LINK="-L/usr/lib"
      export PKG_CONFIG_PATH="~/.nix-profile/lib/pkgconfig"

      NIX_GHC=$(type -p ghc > /dev/null 2>&1)
      if [ -n "$NIX_GHC" ]; then
          eval $(grep export "$NIX_GHC")
      fi
  fi

  nr()
  {
    nix-shell --run "$(echo $@)"
  }
}

nix-on() {
  rm ~/.nonix
}

nix-off() {
  touch ~/.nonix
}

Workaround stupid ssl crap with recent nix.

if [ ! -e ${HOME}/.nonix ]; then
  SSL_CERT_FILE="${HOME}/.nix-profile/etc/ssl/certs/ca-bundle.crt"
  GIT_SSL_CAINFO=$SSL_CERT_FILE
  export SSL_CERT_FILE
  export GIT_SSL_CAINFO
fi

if [ ! -e ${HOME}/.nonix ]; then
  nix_env_setup
fi

TODO Add linux ca-bundle detection if test -e /etc/ssl/certs/ca-bundle.crt ; # Fedora, NixOS set -xg SSL_CERT_FILE /etc/ssl/certs/ca-bundle.crt ; else if test -e /etc/ssl/certs/ca-certificates.crt ; # Ubuntu, Debian set -xg SSL_CERT_FILE /etc/ssl/certs/ca-certificates.crt

tmux

t()
{
  if [ -z "$1" ]; then
    echo "Supply a tmux session name to connect to/create"
  else
    tmux has-session -t "$1" 2>/dev/null
    [ $? != 0 ] && tmux new-session -d -s "$1"
    tmux attach-session -d -t "$1"
  fi
}

x

modmap()
{
  [ -f "${HOME}/.Xmodmap" ] && xmodmap "${HOME}/.Xmodmap"
}

Aliases

General

# general aliases
alias s="\$(which ssh)"
alias quit='exit'
alias cr='reset; clear'
alias a=ag
alias n=noglob
alias l=ls
alias L='ls -dal'
alias cleandir="find . -type f \( -name '*~' -o -name '#*#' -o -name '.*~' -o -name '.#*#' -o -name 'core' -o -name 'dead.letter*' \) | grep -v auto-save-list | xargs -t rm"

# Prefer less for paging duties.
which less > /dev/null 2>&1
if [ $? -eq 0 ]; then
  alias T="\$(which less) -f +F"
else
  alias T="\$(which tail) -f"
fi

alias e=emacs
alias de=emacs --debug-init -nw
alias ec=emacsclient
alias ect=emacsclient -t
alias oec=emacsclient -n -c
alias stope=emacsclient -t -e "(save-buffers-kill-emacs)(kill-emacs)"
alias kille=emacsclient -e "(kill-emacs)"

osx

alias o='open -a'

git

alias g=git

haskell

alias ghce="ghc -e ':l ~/.ghc.hs' -e"

mosh

alias m=mosh

tmux

alias tl='tmux ls'

Final PATH

PATH="${PATH}:${HOME}/bin:${HOME}/.local/bin"
export PATH