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Update hbase-site.xml properties #17

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Update hbase-site.xml properties #17

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21 changes: 16 additions & 5 deletions base/entrypoint.sh
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Original file line number Diff line number Diff line change
@@ -1,13 +1,24 @@
#!/bin/bash

function addProperty() {
function setProperty() {
# Sets/unsets property value in an XML configuration file
# Usage:
# * Append/update: `setProperty filePath propName propValue`
# * Delete: `setProperty filePath propName`
local path=$1
local name=$2
local value=$3

local entry="<property><name>$name</name><value>${value}</value></property>"
local escapedEntry=$(echo $entry | sed 's/\//\\\//g')
sed -i "/<\/configuration>/ s/.*/${escapedEntry}\n&/" $path
local wrappedName="<name>$name</name>"
local escapedName=${wrappedName//\//\\/} # https://stackoverflow.com/a/27788661
if [ -z "$value" ]; then
sed -i "/${escapedName}/d" $path
else
local entry="<property>$wrappedName<value>$value</value></property>"
local escapedEntry=${entry//\//\\/}
# https://superuser.com/a/590666
grep -q "${wrappedName}" $path && sed -i "/${escapedName}/c ${escapedEntry}" $path || sed -i "/<\/configuration>/ s/.*/${escapedEntry}\n&/" $path
fi
}

function configure() {
Expand All @@ -24,7 +35,7 @@ function configure() {
var="${envPrefix}_${c}"
value=${!var}
echo " - Setting $name=$value"
addProperty /etc/hbase/$module-site.xml $name "$value"
setProperty /etc/hbase/$module-site.xml $name "$value"
done
}

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