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8d4f487add
- pre/post install scripts now track configuration files that may be clobbered on package install/upgrade through the INSTALLED_CONFIG_FILES CMake variable and attempts to make backups when the distribution's file differs from the existing file.
34 lines
951 B
Bash
Executable file
34 lines
951 B
Bash
Executable file
#!/bin/sh
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# This script is meant to be used by binary packages pre-installation.
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# Variables between @ symbols are replaced by CMake at configure time.
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configFiles="@INSTALLED_CONFIG_FILES@"
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backupNamesFile=/tmp/bro_install_backups
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# Checks if a config file exists in a default location and makes a backup
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# so that a modified version is not clobbered
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backupFile () {
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origFile="$1"
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if [ -e ${origFile} ]; then
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# choose a file suffix that doesn't already exist
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ver=1
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while [ -e ${origFile}.${ver} ]; do
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ver=$(( ver + 1 ))
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done
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backupFile=${origFile}.${ver}
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cp ${origFile} ${backupFile}
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# the post upgrade script will check whether the installed
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# config file actually differs from existing version
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# and delete unnecessary backups
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echo "${backupFile}" >> ${backupNamesFile}
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fi
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}
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for file in ${configFiles}; do
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backupFile "${file}"
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done
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