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Viewing changes to tool/ifchange

  • Committer: Bazaar Package Importer
  • Author(s): Stephan Hermann
  • Date: 2008-05-16 12:37:06 UTC
  • mfrom: (1.1.10 upstream)
  • Revision ID: james.westby@ubuntu.com-20080516123706-r4llcdfd35aobrjv
Tags: 1.9.0.1-1ubuntu1
https://launchpad.net/bugs/228345
* Merge from debian unstable, remaining changes:
  - Robustify check for target_os, fixing build failure on lpia.
* debian/control:
  - ruby1.9 pkg: moved rdoc1.9 suggestion to depends. (LP: #228345)

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Lines of Context:
tool/ifchange
 
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#!/bin/sh
 
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# usage: ifchange target temporary
 
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target="$1"
 
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temp="$2"
 
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if [ "$temp" = - ]; then
 
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    temp="tmpdata$$.tmp~"
 
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    cat > "$temp" || exit $?
 
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    trap 'rm -f "$temp"' 0
 
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fi
 
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if cmp "$target" "$temp" >/dev/null 2>&1; then
 
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    echo "$target unchanged"
 
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    rm -f "$temp"
 
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else
 
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    echo "$target updated"
 
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    mv -f "$temp" "$target"
 
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fi