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Added gnu-utils plugin.

Sorin Ionescu authored on 03/02/2011 at 22:25:45
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+# ------------------------------------------------------------------------------
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+#          FILE:  gnu-utils.plugin.zsh
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+#   DESCRIPTION:  oh-my-zsh plugin file.
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+#        AUTHOR:  Sorin Ionescu (sorin.ionescu@gmail.com)
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+#       VERSION:  1.0.0
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+# ------------------------------------------------------------------------------
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+
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+
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+if [[ -x "${commands[gwhoami]}" ]]; then 
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+  __gnu_utils() {
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+    emulate -L zsh
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+    local gcmds
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+    local gcmd
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+    local cmd
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+    local prefix
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+
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+    # coreutils 
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+    gcmds=('g[' 'gbase64' 'gbasename' 'gcat' 'gchcon' 'gchgrp' 'gchmod'
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+    'gchown' 'gchroot' 'gcksum' 'gcomm' 'gcp' 'gcsplit' 'gcut' 'gdate'
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+    'gdd' 'gdf' 'gdir' 'gdircolors' 'gdirname' 'gdu' 'gecho' 'genv' 'gexpand'
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+    'gexpr' 'gfactor' 'gfalse' 'gfmt' 'gfold' 'ggroups' 'ghead' 'ghostid'
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+    'gid' 'ginstall' 'gjoin' 'gkill' 'glink' 'gln' 'glogname' 'gls' 'gmd5sum'
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+    'gmkdir' 'gmkfifo' 'gmknod' 'gmktemp' 'gmv' 'gnice' 'gnl' 'gnohup' 'gnproc'
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+    'god' 'gpaste' 'gpathchk' 'gpinky' 'gpr' 'gprintenv' 'gprintf' 'gptx' 'gpwd'
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+    'greadlink' 'grm' 'grmdir' 'gruncon' 'gseq' 'gsha1sum' 'gsha224sum'
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+    'gsha256sum' 'gsha384sum' 'gsha512sum' 'gshred' 'gshuf' 'gsleep' 'gsort'
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+    'gsplit' 'gstat' 'gstty' 'gsum' 'gsync' 'gtac' 'gtail' 'gtee' 'gtest'
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+    'gtimeout' 'gtouch' 'gtr' 'gtrue' 'gtruncate' 'gtsort' 'gtty' 'guname'
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+    'gunexpand' 'guniq' 'gunlink' 'guptime' 'gusers' 'gvdir' 'gwc' 'gwho'
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+    'gwhoami' 'gyes')
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+
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+    # Not part of coreutils, installed separately.
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+    gcmds+=('gsed' 'gtar' 'gtime')
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+
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+    for gcmd in "${gcmds[@]}"; do
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+      #
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+      # This method allows for builtin commands to be primary but it's
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+      # lost if hash -r or rehash -f is executed. Thus, those two 
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+      # functions have to be wrapped.
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+      #
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+      (( ${+commands[$gcmd]} )) && hash ${gcmd[2,-1]}=${commands[$gcmd]}
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+
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+      #
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+      # This method generates wrapper functions.
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+      # It will override shell builtins.
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+      #
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+      # (( ${+commands[$gcmd]} )) && \
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+      # eval "function $gcmd[2,-1]() { \"${prefix}/${gcmd//"["/"\\["}\" \"\$@\"; }"
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+
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+      #
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+      # This method is inflexible since the aliases are at risk of being
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+      # overriden resulting in the BSD coreutils being called.
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+      #
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+      # (( ${+commands[$gcmd]} )) && \
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+      # alias "$gcmd[2,-1]"="${prefix}/${gcmd//"["/"\\["}"
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+    done
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+
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+    return 0
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+  }
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+  __gnu_utils;
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+
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+  function hash() {
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+    if [[ "$*" =~ "-(r|f)" ]]; then
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+      builtin hash "$@"
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+      __gnu_utils
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+    else
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+      builtin hash "$@"
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+    fi
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+  }
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+
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+  function rehash() {
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+    if [[ "$*" =~ "-f" ]]; then
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+      builtin rehash "$@"
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+      __gnu_utils
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+    else
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+      builtin rehash "$@"
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+    fi
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+  }
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+fi
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+