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Create crontab backup and uninstaller #4

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Create crontab backup and uninstaller #4

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686e968
👌 IMPROVE: Create crontab backup and uninstaller
Jun 27, 2020
d495175
👌 IMPROVE: Remove static pointer to /var/lib
luketainton Jul 10, 2020
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3 changes: 3 additions & 0 deletions install
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,9 @@ function run() {
echo "inventory_git_url=$INVENTORY_GIT_URL" >> $CONFIG_FILE
fi

echo Making a backup of /etc/crontab...
cp /etc/crontab /etc/crontab-pre-aviary

echo Adding entry to /etc/crontab...
echo "$(cat /etc/crontab | grep -v $AV_PATH)" > /etc/crontab
echo "* * * * * root $AV_PATH directive >> /var/log/aviary-directive.log 2>&1" >> /etc/crontab
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33 changes: 33 additions & 0 deletions uninstall
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@@ -0,0 +1,33 @@
#!/usr/bin/env bash

set -euo pipefail

function run() {
INSTALL_PATH=/var/lib
AV_PATH=$INSTALL_PATH/aviary/av

if [[ ! -e $INSTALL_PATH/aviary ]]; then
echo "No existing installation at $INSTALL_PATH; exiting"
exit 1
fi

echo Uninstalling aviary from ${INSTALL_PATH}...
rm -rf ${INSTALL_PATH}/aviary
rm -f /usr/bin/av

echo Removing entries from /etc/crontab...
cp /etc/crontab /etc/crontab-aviary-uninstall
grep -v "$INSTALL_PATH/aviary" /etc/crontab > /etc/crontab.new
mv /etc/crontab.new /etc/crontab
if grep -q "$INSTALL_PATH/aviary" "/etc/crontab"; then
echo ERROR: Could not remove entries - please clean up /etc/crontab manually.
else
echo /etc/crontab updated - removing backup...
rm -f /etc/crontab-aviary-uninstall
fi

echo Done
}

# Wrap in function to ensure entire script is downloaded.
run