37 lines
943 B
Nix
37 lines
943 B
Nix
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{
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writeShellApplication,
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postgresql_15,
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postgresql_16,
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...
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}:
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let
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newPostgres = postgresql_16;
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oldPostgres = postgresql_15;
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in
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writeShellApplication {
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name = "upgrade-pg-cluster";
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# Only the new one should be in scope, because that is the
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# one that we will be referencing directly with the sudo command
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# down farther.
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runtimeInputs = [ newPostgres ];
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text = ''
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systemctl stop postgresql
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export NEWDATA="/var/lib/postgresql/${newPostgres.psqlSchema}"
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export NEWBIN="${newPostgres}/bin"
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export OLDDATA="/var/lib/postgresql/${oldPostgres.psqlSchema}"
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export OLDBIN="${oldPostgres}/bin"
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install -d -m 0700 -o postgres -g postgres "$NEWDATA"
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cd "$NEWDATA"
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sudo -u postgres "$NEWBIN/initdb" -D "$NEWDATA"
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sudo -u postgres "$NEWBIN/pg_upgrade" \
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--old-datadir "$OLDDATA" --new-datadir "$NEWDATA" \
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--old-bindir "$OLDBIN" --new-bindir "$NEWBIN" \
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"$@"
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'';
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}
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