.bash_funcs

# Copyright (C) 2021 Graz University of Technology.

# Search strings in files like
# fxgrep py RecordService
#
# find RecordService in *.py python files and exclude all files comming from
# directories which include invenio-rdm-records or test
#   fxgrep py RecordService invenio-rdm-records test
#
# find RecordService in *.py files where RecordService prefix and suffix is not
# a character
# fxgrep py '[^a-z]RecordService[^a-z]'
#
# default is to search case insensitive, but sometimes it is easier to search
# case sensitive. the search string has to be prefixed with "i:"
# fxgrep py i:Owner
function fxgrep() {
  xagr="xargs grep -n -P --color"
  notpaths=()
  space=$1
  pattern=$2

  if [[ ${pattern:0:2} == "i:" ]]
  then
    pattern=${pattern:2}
  else
    xagr+=" -i"
  fi

  for (( i=3; i <= $#; i++ ))
  do
    notpaths+=( -not -path "*${!i}*")
  done

  if [[ ${space} == "c++" ]]
  then
    file_extensions=".*\.(cpp|hpp|cc|c|h)"
  elif [[ ${space} == "html" ]]
  then
    file_extensions=".*\.(html|less|css)"
  elif [[ ${space} == "js" ]]
  then
    file_extensions=".*\.(js|jsx|svelte|ts|vue)"
    notpaths+=( -not -path "*build*" )
    notpaths+=( -not -path "*node_modules*" )
  elif [[ ${space} == "php" ]]
  then
    file_extensions=".*\.(php|tpl)"
  elif [[ ${space} == "xml" ]]
  then
    file_extensions=".*\.(xml|xsl)"
  elif [[ ${space} == "tex" ]]
  then
    file_extensions=".*\.tex"
  elif [[ ${space} == "py" ]]
  then
    file_extensions=".*\.py"
  else
    file_extensions=".*${space}"
  fi

  find -type f -regextype posix-egrep -regex ${file_extensions} "${notpaths[@]}" | sed 's/ /\\ /g' | $xagr ${pattern}
}


# show the name of the current git branch
function gitBranch() {
  git branch 2> /dev/null | sed -r -e '/^[^*]/d' -e 's/\* (.+)$/(\1) /'
}

# see if there is a open ssh session. the possible name of the session could be
# detected also in the sed command like 's/^(ssh).*(Max|Moritz).*/(\1@\2) /'. it
# would be clearer which session is open
function isSSHActive() {
  ssh-add -L 2> /dev/null | sed -r -e 's/^(ssh).*/(\1) /'
}

# the bash prompt could be overriden. to use it like that put the "bash_prompt"
# command into the .bashrc file
function bash_prompt() {
  local none="\[\e[00m\]"

  local red="\[\e[31m\]"
  local green="\[\e[32m\]"
  local boldBlue="\[\e[01;34m\]"
  local white="\[\e[37m\]"

  export PS1="${white}\u ${green}\$(isSSHActive)${boldBlue}\W ${red}\$(gitBranch)${none}\$${none} "
}