37 lines
2.3 KiB
Bash
37 lines
2.3 KiB
Bash
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################################################################################
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# #
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# Find version differences in common packages of `ghc-pkg list` dumps. #
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# #
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# Copyright (C) 2015 Daniel Gröber <dxld@darkboxed.org> #
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# #
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# Copying and distribution of this file, with or without modification, #
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# are permitted in any medium without royalty provided the copyright #
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# notice and this notice are preserved. This file is offered as-is, #
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# without any warranty. #
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# #
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# Usage: sh compare-versions.sh FILE1 FILE2 #
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# #
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# Example: #
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# sh compare-versions.sh =(ghc-pkg list) =(ssh some-host ghc-pkg list) #
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# #
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# Where `=(command)` is equivalent to: #
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# `(tmp=$(mktemp); command > $tmp; echo $tmp)` #
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# #
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# #
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# The output consists of lines in the format: #
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# <PKG> <VERSION1> <VERSION2> #
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# VERSION1 is the version from FILE1 and VERSION2 is the version from FILE2 #
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# #
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################################################################################
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t1=$(mktemp)
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t2=$(mktemp)
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grep "^ " "$1" | sed 's/ *\(.*\)-\([0-9.]\+\)/\1 \2/' | sort > $t1
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grep "^ " "$2" | sed 's/ *\(.*\)-\([0-9.]\+\)/\1 \2/' | sort > $t2
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comm -3 -2 $t1 $t2 | sort -k 1b,1 > $t1.diff
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comm -3 -1 $t1 $t2 | sort -k 1b,1 > $t2.diff
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join $t1.diff $t2.diff | sort | uniq
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