From c88d66a0cbaa2baa258f212cb39fb940b86d2d30 Mon Sep 17 00:00:00 2001
From: root <root@pigstarter.de>
Date: Sat, 2 Nov 2013 02:00:39 +0100
Subject: refactor punani

---
 lib/punani | 155 +++++++++++++++++++++++++++++++++----------------------------
 1 file changed, 83 insertions(+), 72 deletions(-)

diff --git a/lib/punani b/lib/punani
index d2bcbed2..41c59a46 100644
--- a/lib/punani
+++ b/lib/punani
@@ -2,92 +2,103 @@
 #include core
 
 ## begin punani DB
-punani_pacman_=
-punani_yum_=
-punani_aptget_=
+_punanidb_pacman_=
+_punanidb_yum_=
+_punanidb_aptget_=
 
-punani_pacman_git=git
-punani_yum_git=git
-punani_aptget_git=git-core
+_punanidb_pacman_git=git
+_punanidb_yum_git=git
+_punanidb_aptget_git=git-core
 
-punani_pacman_python2=python2
-punani_yum_python2=python
-punani_aptget_python2=python
+_punanidb_pacman_python2=python2
+_punanidb_yum_python2=python
+_punanidb_aptget_python2=python
 
-punani_pacman_python3=python
-punani_aptget_python3=python3
+_punanidb_pacman_python3=python
+_punanidb_aptget_python3=python3
 
-punani_pacman_hostname=inetutils
-punani_aptget_hostname=hostname
+_punanidb_pacman_hostname=inetutils
+_punanidb_aptget_hostname=hostname
 
-punani_pacman_hostname=inetutils
-punani_aptget_hostname=hostname
+_punanidb_pacman_hostname=inetutils
+_punanidb_aptget_hostname=hostname
 
-punani_pacman_make=make
-punani_yum_make=make
-punani_aptget_make=make
+_punanidb_pacman_make=make
+_punanidb_yum_make=make
+_punanidb_aptget_make=make
 
-punani_pacman_tinc=tinc
-punani_yum_tinc=tinc
-punani_aptget_tinc=tinc
+_punanidb_pacman_tinc=tinc
+_punanidb_yum_tinc=tinc
+_punanidb_aptget_tinc=tinc
+
+_punanidb_pacman_tor=tor
+_punanidb_yum_tor=tor
+_punanidb_aptget_tor=tor
+
+_punanidb_pacman_nano=nano
+_punanidb_yum_nano=nano
+_punanidb_aptget_nano=nano
+
+_punanidb_pacman_vim=vim
+_punanidb_yum_vim=vim-enhanced
+_punanidb_aptget_vim=vim
 
-punani_pacman_nano=nano
-punani_yum_nano=nano
-punani_aptget_nano=nano
 ## end punani DB
 
-punani_resolve_package(){
-  : ${PACKER_CMD?PACKER_CMD is not set,bailing out}
+_punani_resolve_package(){
+  : ${PACKER?PACKER is not set,bailing out}
   pkg=${1?please provide package name to resolve}
-  PACKER_DB=$(printf  ${PACKER_CMD}| sed 's/-//g')
-  eval printf \"\${punani_${PACKER_DB}_${pkg}-}\" | grep .
+  eval printf \"\${_punanidb_${PACKER_DB}_${pkg}-}\" | grep .
 }
+_punani_aptget_install(){ apt-get -y install "$@" ;}
+_punani_aptget_remove(){ apt-get -y remove "$@" ;}
+_punani_aptget_has() { dpkg -s "$1" >/dev/null 2>/dev/null ;}
+_punani_yum_install(){ yum -y install "$@" ;}
+_punani_yum_remove(){ yum -y remove "$@" ;}
+_punani_yum_has() { rpm -qa --qf "%{NAME}\n"| egrep  "^${1}\$" >/dev/null ;}
+_punani_pacman_install(){ pacman --noconfirm -S --needed "$@" ;}
+_punani_pacman_remove(){ pacman -Rcs "$@" ;}
+_punani_pacman_has(){ pacman -Q "$1" >/dev/null;}
+_punani_brew_install(){ brew install "$@"; }
+_punani_brew_remove(){ brew remove "$@";}
+_punani_brew_has(){ error "not implemented"; return 1 ;}
+
 punani(){
   ! is_root && error "punani requires super-user rights" && return 1
   ACTION="$1"; shift
   PKGS="$*"
-  if ! :; then : # dummy case, so the rest has a common format
-  elif exists apt-get;then
-    PACKER_CMD='apt-get'
-    INSTALL_PARAM='-y install'
-    REMOVE_PARAM='-y remove'
-  elif exists pacman;then
-    PACKER_CMD='pacman'
-    INSTALL_PARAM='--noconfirm -S --needed'
-    REMOVE_PARAM='-Rcs'
-  elif exists yum;then
-    PACKER_CMD='yum'
-    INSTALL_PARAM='-y install'
-    REMOVE_PARAM='-y remove'
-  elif exists brew;then
-    PACKER_CMD='brew'
-    INSTALL_PARAM='install'
-    REMOVE_PARAM='remove'
-  else
-    error "Error 2: no known package manager found; no punani for you!"
-    return 1
-  fi
-  info "using $PACKER_CMD for install"
-  RESOLVED=""
-  if test -n "$PKGS"; then
-    for PKG in $PKGS; do
-      RES="$(punani_resolve_package $PKG)"
-      test  -z "$RES" && error "could not resolve '$PKG'; no punani for you!"&& return 23
-      RESOLVED="${RESOLVED+$RESOLVED }$RES"
-    done
-  else
-    error "no PACKAGE specified."
-    ACTION="usage"
-  fi
-  case "$ACTION" in 
-    install)
-        eval $PACKER_CMD $INSTALL_PARAM $RESOLVED || error "Cannot install $PKG!"
-      ;;
-    remove)
-        eval $PACKER_CMD $REMOVE_PARAM $RESOLVED || error "Cannot remove $PKG!"
-      ;;
-    *)
-      error "usage: punani (install|remove) PACKAGE..."
-      return 23
-  esac
+  PACKER_DB=$(printf  ${PACKER}| sed 's/-//g')
+  for p in apt-get pacman yum brew;do
+    exists "$p" && PACKER=`printf $p | sed 's/-//g'` && break
+  done
+
+  [ -z "${PACKER:-}" ] && error "Error 2: no known package manager found; no punani for you!" && return 1
+  info "using $PACKER for install"
+  [ -z "$PKGS" ] && error "no PACKAGE specified." && ACTION="usage"
+
+
+  for PKG in $PKGS; do
+    RES="`_punani_resolve_package $PKG`"
+    test  -z "$RES" && error "could not resolve '$PKG'; no punani for you!"&& return 23
+    case "$ACTION" in 
+      install)
+          eval _punani_${PACKER}_has $RES && info "$RES already installed, skipping" && continue
+          eval _punani_${PACKER}_install $RES || error "cannot install $RES with $PACKER"
+          ;;
+      remove)
+            ! eval  _punani_${PACKER}_has $RES && info "$RES not installed, skipping" && continue
+            eval _punani_${PACKER}_remove $RES || error "cannot install $RES with $PACKER"
+            ;;
+      has)
+            if eval  _punani_${PACKER}_has $RES ;then
+              info "$RES is installed"
+            else
+              info "$RES is not installed"
+            fi
+            ;;
+      *)
+        error "usage: punani (install|remove|has) PACKAGE..."
+        return 23
+    esac
+  done
 }
-- 
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