git_xy/git@github.com:icyfork/pacapt branch ng path lib/

```
git_xy:
  version: 0.0.0
src:
  repo    : git@github.com:icyfork/pacapt
  branch  : ng
  path    : lib/
  commit  : 0ef1133
  subject : Merge pull request icy#131 from rami3l/pacaptr-link
dst:
  repo    : git@github.com:icyfork/pacapt
  branch  : master
  path    : testx/
  commit  : 2d76b6b
```

testx/00_core.sh

@@ -0,0 +1,235 @@
+#!/bin/bash
+
+# Purpose: Provide some basic functions
+# Author : Anh K. Huynh
+# License: Fair license (http://www.opensource.org/licenses/fair)
+# Source : http://github.com/icy/pacapt/
+
+# Copyright (C) 2010 - 2014 Anh K. Huynh
+#
+# Usage of the works is permitted provided that this instrument is
+# retained with the works, so that any entity that uses the works is
+# notified of this instrument.
+#
+# DISCLAIMER: THE WORKS ARE WITHOUT WARRANTY.
+
+_error() {
+  echo >&2 "Error: $*"
+  return 1
+}
+
+_warn() {
+  echo >&2 "Warning: $*"
+  return 0
+}
+
+_die() {
+  echo >&2 "$@"
+  exit 1
+}
+
+_not_implemented() {
+  # shellcheck disable=2153
+  echo >&2 "${_PACMAN}: '${_POPT}:${_SOPT}:${_TOPT}' operation is invalid or not implemented."
+  return 1
+}
+
+_removing_is_dangerous() {
+  echo >&2 "${_PACMAN}: removing with '$*' is too dangerous"
+  return 1
+}
+
+# Detect package type from /etc/issue
+# FIXME: Using new `issue` file (location)
+_issue2pacman() {
+  local _pacman
+
+  _pacman="$1"; shift
+
+  # The following line is added by Daniel YC Lin to support SunOS.
+  #
+  #   [ `uname` = "$1" ] && _PACMAN="$_pacman" && return
+  #
+  # This is quite tricky and fast, however I don't think it works
+  # on Linux/BSD systems. To avoid extra check, I slightly modify
+  # the code to make sure it's only applicable on SunOS.
+  #
+  [[ "$(uname)" == "SunOS" ]] && _PACMAN="$_pacman" && return
+
+  $GREP -qis "$@" /etc/issue \
+  && _PACMAN="$_pacman" && return
+
+  $GREP -qis "$@" /etc/os-release \
+  && _PACMAN="$_pacman" && return
+}
+
+# Detect package type
+_PACMAN_detect() {
+  _PACMAN_found_from_script_name && return
+
+  _issue2pacman sun_tools "SunOS" && return
+  _issue2pacman pacman "Arch Linux" && return
+  _issue2pacman dpkg "Debian GNU/Linux" && return
+  _issue2pacman dpkg "Ubuntu" && return
+  _issue2pacman cave "Exherbo Linux" && return
+  _issue2pacman yum "CentOS" && return
+  _issue2pacman yum "Red Hat" && return
+  #
+  # FIXME: The multiple package issue.
+  #
+  # On #63, Huy commented out this line. This is because new generation
+  # of Fedora uses `dnf`, and `yum` becomes a legacy tool. On old Fedora
+  # system, `yum` is still detectable by looking up `yum` binary.
+  #
+  # I'm not sure how to support this case easily. Let's wait, e.g, 5 years
+  # from now to make `dnf` becomes a default? Oh no!
+  #
+  # And here why `pacman` is still smart. Debian has a set of tools.
+  # Fedora has `yum` (and a set of add-ons). Now Fedora moves to `dnf`.
+  # This means that a package manager is not a heart of a system ;)
+  #
+  # _issue2pacman yum "Fedora" && return
+  _issue2pacman zypper "SUSE" && return
+  _issue2pacman pkg_tools "OpenBSD" && return
+  _issue2pacman pkg_tools "Bitrig" && return
+  _issue2pacman apk "Alpine Linux" && return
+
+  [[ -z "$_PACMAN" ]] || return
+
+  # Prevent a loop when this script is installed on non-standard system
+  if [[ -x "/usr/bin/pacman" ]]; then
+    $GREP -q "${FUNCNAME[0]}" '/usr/bin/pacman' >/dev/null 2>&1
+    [[ $? -ge 1 ]] && _PACMAN="pacman" \
+    && return
+  fi
+
+  [[ -x "/usr/bin/apt-get" ]] && _PACMAN="dpkg" && return
+  [[ -x "/data/data/com.termux/files/usr/bin/apt-get" ]] && _PACMAN="dpkg" && return
+  [[ -x "/usr/bin/cave" ]] && _PACMAN="cave" && return
+  [[ -x "/usr/bin/dnf" ]] && _PACMAN="dnf" && return
+  [[ -x "/usr/bin/yum" ]] && _PACMAN="yum" && return
+  [[ -x "/opt/local/bin/port" ]] && _PACMAN="macports" && return
+  [[ -x "/usr/bin/emerge" ]] && _PACMAN="portage" && return
+  [[ -x "/usr/bin/zypper" ]] && _PACMAN="zypper" && return
+  [[ -x "/usr/sbin/pkg" ]] && _PACMAN="pkgng" && return
+  # make sure pkg_add is after pkgng, FreeBSD base comes with it until converted
+  [[ -x "/usr/sbin/pkg_add" ]] && _PACMAN="pkg_tools" && return
+  [[ -x "/usr/sbin/pkgadd" ]] && _PACMAN="sun_tools" && return
+  [[ -x "/sbin/apk" ]] && _PACMAN="apk" && return
+  [[ -x "/usr/bin/tazpkg" ]] && _PACMAN="tazpkg" && return
+  [[ -x "/usr/bin/swupd" ]] && _PACMAN="swupd" && return
+
+  command -v brew >/dev/null && _PACMAN="homebrew" && return
+
+  return 1
+}
+
+# Translate -w option. Please note this is only valid when installing
+# a package from remote, aka. when '-S' operation is performed.
+_translate_w() {
+
+  echo "$_EOPT" | $GREP -q ":w:" || return 0
+
+  local _opt=
+  local _ret=0
+
+  case "$_PACMAN" in
+  "dpkg")     _opt="-d";;
+  "cave")     _opt="-f";;
+  "macports") _opt="fetch";;
+  "portage")  _opt="--fetchonly";;
+  "zypper")   _opt="--download-only";;
+  "pkgng")    _opt="fetch";;
+  "yum")      _opt="--downloadonly";
+    if ! rpm -q 'yum-downloadonly' >/dev/null 2>&1; then
+      _error "'yum-downloadonly' package is required when '-w' is used."
+      _ret=1
+    fi
+    ;;
+  "tazpkg")
+    _error "$_PACMAN: Use '$_PACMAN get' to download and save packages to current directory."
+    _ret=1
+    ;;
+  "apk")      _opt="fetch";;
+  *)
+    _opt=""
+    _ret=1
+
+    _error "$_PACMAN: Option '-w' is not supported/implemented."
+    ;;
+  esac
+
+  echo $_opt
+  return "$_ret"
+}
+
+_translate_debug() {
+  echo "$_EOPT" | $GREP -q ":v:" || return 0
+
+  case "$_PACMAN" in
+  "tazpkg")
+    _error "$_PACMAN: Option '-v' (debug) is not supported/implemented by tazpkg"
+    return 1
+    ;;
+  esac
+
+  echo "-v"
+}
+
+# Translate the --noconfirm option.
+# FIXME: does "yes | pacapt" just help?
+_translate_noconfirm() {
+
+  echo "$_EOPT" | $GREP -q ":noconfirm:" || return 0
+
+  local _opt=
+  local _ret=0
+
+  case "$_PACMAN" in
+  # FIXME: Update environment DEBIAN_FRONTEND=noninteractive
+  # FIXME: There is also --force-yes for a stronger case
+  "dpkg")   _opt="--yes";;
+  "dnf")    _opt="--assumeyes";;
+  "yum")    _opt="--assumeyes";;
+  # FIXME: pacman has 'assume-yes' and 'assume-no'
+  # FIXME: zypper has better mode. Similar to dpkg (Debian).
+  "zypper") _opt="--no-confirm";;
+  "pkgng")  _opt="-y";;
+  "tazpkg") _opt="--auto";;
+  *)
+    _opt=""
+    _ret=1
+    _error "$_PACMAN: Option '--noconfirm' is not supported/implemented."
+    ;;
+  esac
+
+  echo $_opt
+  return $_ret
+}
+
+_translate_all() {
+  local _args=""
+  local _debug=
+  local _noconfirm=
+
+  _debug="$(_translate_debug)"
+  _noconfirm="$(_translate_noconfirm)"
+  _args="$(_translate_w)" || return 1
+  _args="${_args}${_noconfirm:+ }${_noconfirm}" || return 1
+  _args="${_args}${_debug:+ }${_debug}" || return 1
+
+  export _EOPT="${_args# }"
+}
+
+_print_supported_operations() {
+  local _pacman="$1"
+  echo -n "pacapt($_pacman): available operations:"
+  # shellcheck disable=2016
+  $GREP -E "^${_pacman}_[^ \\t]+\\(\\)" "$0" \
+  | $AWK -F '(' '{print $1}' \
+  | sed -e "s/${_pacman}_//g" \
+  | while read -r O; do
+      echo -n " $O"
+    done
+  echo
+}

testx/00_external.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+
+# Purpose : Provide some basic settings for external package managers
+# Author  : Ky-Anh Huynh
+# License : MIT
+# Date    : 2018 July 26th
+# Ref.    : https://github.com/icy/pacapt/issues/106
+
+export _SUPPORTED_EXTERNALS="
+  :conda
+  :tlmgr
+  :texlive
+  :gem
+  :npm
+  :pip
+"
+readonly _SUPPORTED_EXTERNALS
+
+_PACMAN_found_from_script_name() {
+  local _tmp_name=
+  local _pacman=
+
+  _tmp_name="${BASH_SOURCE[0]:-?}"
+  if [[ "$_tmp_name" == "?" ]]; then
+    _error "Unable to get script name."
+    return 1
+  fi
+
+  _tmp_name="${_tmp_name##*/}" # base name (remove everything before the last `/`)
+  _tmp_name="${_tmp_name%.*}"  # remove extension if any (remove everything from the last `.`)
+  _pacman="${_tmp_name##*-}"   # remove every thing before the last `-`
+
+  if grep -Eq -e ":$_pacman[[:space:]]*" <<< "$_SUPPORTED_EXTERNALS"; then
+    export _PACMAN="$_pacman"
+    return 0
+  else
+    export _PACMAN=""
+    return 1
+  fi
+}