50 lines
1.6 KiB
Text
50 lines
1.6 KiB
Text
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#!/bin/sh
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# This script verifies that the postgresql data directory has been correctly
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# initialized. We do not want to automatically initdb it, because that has
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# a risk of catastrophic failure (ie, overwriting a valuable database) in
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# corner cases, such as a remotely mounted database on a volume that's a
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# bit slow to mount. But we can at least emit a message advising newbies
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# what to do.
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PGDATA="$1"
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if [ -z "$PGDATA" ]
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then
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echo "Usage: $0 database-path"
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exit 1
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fi
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# PGMAJORVERSION is major version
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PGMAJORVERSION=13
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# PREVMAJORVERSION is the previous major version
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PREVMAJORVERSION=12
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# Check for the PGDATA structure
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if [ -f "$PGDATA/PG_VERSION" ] && [ -d "$PGDATA/base" ]
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then
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# Check version of existing PGDATA
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if [ x`cat "$PGDATA/PG_VERSION"` = x"$PGMAJORVERSION" ]
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then
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: A-OK
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elif [ x`cat "$PGDATA/PG_VERSION"` = x"$PREVMAJORVERSION" ]
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then
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echo $"An old version of the database format was found."
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echo $"See https://wiki.archlinux.org/index.php/PostgreSQL#Upgrading_PostgreSQL"
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exit 1
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else
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echo $"An old version of the database format was found."
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echo $"You need to dump and reload before using PostgreSQL $PGMAJORVERSION."
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echo $"See http://www.postgresql.org/docs/$PGMAJORVERSION/static/upgrading.html"
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exit 1
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fi
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else
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# No existing PGDATA! Warn the user to initdb it.
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echo $"\"$PGDATA\" is missing or empty. Use a command like"
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echo $" su - postgres -c \"initdb --locale en_US.UTF-8 -D '$PGDATA'\""
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echo $"with relevant options, to initialize the database cluster."
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exit 1
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fi
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exit 0
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