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zulip/scripts/setup/terminate-psql-sessions

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Add support for running OpenBSD in development environment.
2016-01-12 13:08:43 +01:00
#!/usr/bin/env bash
Drop database users prior to DROP/CREATE database. This fixes an annoying issue where one tries to rebuild the database, and it fails due to there being existing connections. The one thing that is potentially scary about this implementation is that it means it's now a lot easier to accidentally drop your production database by running the wrong script; might be worth adding a "--force" flag controlling this behavior or something. Thanks to Nemanja Stanarevic and Neeraj Wahi for prototypes of this implementation! They did most of the work and testing for this.
2015-09-28 19:45:35 +02:00
set -e
Add support for running OpenBSD in development environment.
2016-01-12 13:08:43 +01:00
DEFAULT_USER="postgres"
if [ "$(uname)" = "OpenBSD" ]; then
DEFAULT_USER="_postgresql"
fi
Drop database users prior to DROP/CREATE database. This fixes an annoying issue where one tries to rebuild the database, and it fails due to there being existing connections. The one thing that is potentially scary about this implementation is that it means it's now a lot easier to accidentally drop your production database by running the wrong script; might be worth adding a "--force" flag controlling this behavior or something. Thanks to Nemanja Stanarevic and Neeraj Wahi for prototypes of this implementation! They did most of the work and testing for this.
2015-09-28 19:45:35 +02:00
cd /
username=$1
terminate-psql-sessions: Remove dependency on bc. Fixes #281.
2015-11-10 07:16:41 +01:00
Drop database users prior to DROP/CREATE database. This fixes an annoying issue where one tries to rebuild the database, and it fails due to there being existing connections. The one thing that is potentially scary about this implementation is that it means it's now a lot easier to accidentally drop your production database by running the wrong script; might be worth adding a "--force" flag controlling this behavior or something. Thanks to Nemanja Stanarevic and Neeraj Wahi for prototypes of this implementation! They did most of the work and testing for this.
2015-09-28 19:45:35 +02:00
shift
terminate-psql-sessions: Fix shellcheck warnings. In scripts/setup/terminate-psql-sessions line 5: [ "$1" = "`echo -e "$1\n$2" | sort -V | tail -n1`" ] ^-- SC2006: Use $(..) instead of legacy `..`. ^-- SC1117: Backslash is literal in "\n". Prefer explicit escaping: "\\n". In scripts/setup/terminate-psql-sessions line 20: major=$(echo $version | cut -d. -f1,2) ^-- SC2086: Double quote to prevent globbing and word splitting. In scripts/setup/terminate-psql-sessions line 24: tables=$(echo "'$@'" | sed "s/ /','/g") ^-- SC2145: Argument mixes string and array. Use * or separate argument. Signed-off-by: Anders Kaseorg <andersk@mit.edu>
2018-08-03 02:14:48 +02:00
tables=$(echo "'$*'" | sed "s/ /','/g")
Drop database users prior to DROP/CREATE database. This fixes an annoying issue where one tries to rebuild the database, and it fails due to there being existing connections. The one thing that is potentially scary about this implementation is that it means it's now a lot easier to accidentally drop your production database by running the wrong script; might be worth adding a "--force" flag controlling this behavior or something. Thanks to Nemanja Stanarevic and Neeraj Wahi for prototypes of this implementation! They did most of the work and testing for this.
2015-09-28 19:45:35 +02:00
if [ "$EUID" -eq 0 ]; then
Correct shell quoting around $DEFAULT_USER in terminate-psql-sessions Previously, we used shell quoting that would result in the shell variable not being substituted. Instead, we use `"`s that will allow for variable substitution.
2016-02-18 02:48:20 +01:00
sudo -u "$DEFAULT_USER" sh -c "psql postgres '$DEFAULT_USER'" <<EOF
terminate-psql-sessions: Remove postgres <9.2 support. Those older versions of postgres reached end-of-life upstream, and it makes this shell script easier to read.
2018-08-10 00:24:22 +02:00
SELECT pg_terminate_backend(pid) FROM pg_stat_activity WHERE datname IN ($tables);
Drop database users prior to DROP/CREATE database. This fixes an annoying issue where one tries to rebuild the database, and it fails due to there being existing connections. The one thing that is potentially scary about this implementation is that it means it's now a lot easier to accidentally drop your production database by running the wrong script; might be worth adding a "--force" flag controlling this behavior or something. Thanks to Nemanja Stanarevic and Neeraj Wahi for prototypes of this implementation! They did most of the work and testing for this.
2015-09-28 19:45:35 +02:00
EOF
else
psql -h localhost postgres "$username" <<EOF
terminate-psql-sessions: Remove postgres <9.2 support. Those older versions of postgres reached end-of-life upstream, and it makes this shell script easier to read.
2018-08-10 00:24:22 +02:00
SELECT pg_terminate_backend(pid) FROM pg_stat_activity WHERE datname IN ($tables);
Drop database users prior to DROP/CREATE database. This fixes an annoying issue where one tries to rebuild the database, and it fails due to there being existing connections. The one thing that is potentially scary about this implementation is that it means it's now a lot easier to accidentally drop your production database by running the wrong script; might be worth adding a "--force" flag controlling this behavior or something. Thanks to Nemanja Stanarevic and Neeraj Wahi for prototypes of this implementation! They did most of the work and testing for this.
2015-09-28 19:45:35 +02:00
EOF
fi