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70 lines
2.2 KiB
Bash
70 lines
2.2 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2020-03-12 16:15:38 +0000 (Thu, 12 Mar 2020)
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#
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# https://github.com/harisekhon/bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/harisekhon
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#
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# Script to more easily connect to PostgreSQL without having to repeatedly specify options like host, username and password
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#
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# Leverages standard PostgresSQL options as well as others likely to be found in the environment
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#
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# https://www.postgresql.org/docs/9.0/libpq-envars.html
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#
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# GNU sql may also be of interest
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#
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# Tested on AWS RDS PostgreSQL 9.5.15
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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opts="${POSTGRES_OPTS:-}"
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POSTGRES_HOST="${PGHOST:-${POSTGRESQL_HOST:-${POSTGRES_HOST:-${HOST:-}}}}"
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if [ -n "${POSTGRES_HOST:-}" ]; then
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# more intuitive to see in the process list what is going on
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#export PGHOST="$POSTGRES_HOST"
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opts="$opts -h $POSTGRES_HOST"
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fi
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POSTGRES_PORT="${PGPORT:-${POSTGRESQL_PORT:-${POSTGRES_PORT:-${PORT:-}}}}"
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if [ -n "${POSTGRES_PORT:-}" ]; then
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# more intuitive to see in the process list what is going on
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#export PGPORT="$POSTGRES_PORT"
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opts="$opts -p $POSTGRES_PORT"
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fi
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POSTGRES_USER="${PGUSER:-${POSTGRESQL_USER:-${POSTGRES_USER:-${USER:-}}}}"
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if [ -n "${POSTGRES_USER:-}" ]; then
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# more intuitive to see in the process list what is going on
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#export PGUSER="$POSTGRES_USER"
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opts="$opts -U $POSTGRES_USER"
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fi
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POSTGRES_PASSWORD="${PGPASSWORD:-${POSTGRESQL_PASSWORD:-${POSTGRES_PASSWORD:-${PASSWORD:-}}}}"
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if [ -n "${POSTGRES_PASSWORD:-}" ]; then
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# can't do this and wouldn't want to as it'd expose it in the password list
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#opts="$opts -U $POSTGRES_PASSWORD"
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export PGPASSWORD="$POSTGRES_PASSWORD"
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fi
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POSTGRES_DATABASE="${PGDATABASE:-${POSTGRESQL_DATABASE:-${POSTGRES_DATABASE:-${DATABASE:-}}}}"
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if [ -n "${POSTGRES_DATABASE:-}" ]; then
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# more intuitive to see in the process list what is going on
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#export PGDATABASE="$POSTGRES_DATABASE"
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opts="$opts -d $POSTGRES_DATABASE"
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fi
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# split opts
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# shellcheck disable=SC2086
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exec psql $opts "$@"
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