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47 lines
1.4 KiB
Bash
Executable file
47 lines
1.4 KiB
Bash
Executable file
#!/bin/sh
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# This script verifies that the postgrespro 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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PATH=/bin:/usr/bin
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export PATH
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PGDATA="$1"
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if [ -z "$PGDATA" ]
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then
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echo "Usage: $0 database-path"
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exit 1
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fi
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PGENGINE=@BINDIR@
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PGMAJORVERSION=@VERSION@
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PREVMAJORVERSION=10
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# Check for the PGDATA structure
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if [ -f "$PGDATA/PG_VERSION" ] && [ -d "$PGDATA/base" ]
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then
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# Check version of existing PGDATA
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if [ "$(cat "$PGDATA/PG_VERSION")" = "$PGMAJORVERSION" ]
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then
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exit 0
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elif [ "$(cat "$PGDATA/PG_VERSION")" = "$PREVMAJORVERSION" ]
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then
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echo "An old version of the database format was found."
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echo "Use \"${PGENGINE}/pg_upgrade\" to upgrade to version $PGMAJORVERSION."
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exit 1
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else
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echo "An old version of the database format was found."
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echo "You need to dump and reload before using Postgres Pro @EDITION@-$PGMAJORVERSION."
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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 "\"$PGDATA\" is missing or empty."
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echo "Use \"${PGENGINE}/pg-setup initdb\" 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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