[type/__postgres_conf] Implement complex state compare logic
This commit is contained in:
Dennis Camera
parent
e0416403c4
commit
12c2995494
1 changed files with 163 additions and 3 deletions
|
|
@ -22,6 +22,52 @@
|
|||
postgres_user=$("${__type_explorer:?}/postgres_user")
|
||||
conf_name=${__object_id:?}
|
||||
|
||||
tolower() { printf '%s' "$*" | tr '[:upper:]' '[:lower:]'; }
|
||||
|
||||
tobytes() {
|
||||
# NOTE: This function treats everything as base 2.
|
||||
# It is not compatible with SI units.
|
||||
awk 'BEGIN { FS = "\n" }
|
||||
/TB$/ { $0 = ($0 * 1024) "GB" }
|
||||
/GB$/ { $0 = ($0 * 1024) "MB" }
|
||||
/MB$/ { $0 = ($0 * 1024) "kB" }
|
||||
/kB$/ { $0 = ($0 * 1024) "B" }
|
||||
/B?$/ { sub(/ *B?$/, "") }
|
||||
($0*1) == $0 # is number
|
||||
' <<-EOF
|
||||
$1
|
||||
EOF
|
||||
}
|
||||
|
||||
tomillisecs() {
|
||||
awk 'BEGIN { FS = "\n" }
|
||||
/d$/ { $0 = ($0 * 24) "h" }
|
||||
/h$/ { $0 = ($0 * 60) "min" }
|
||||
/min$/ { $0 = ($0 * 60) "s" }
|
||||
/[^m]s$/ { $0 = ($0 * 1000) "ms" }
|
||||
/ms$/ { $0 *= 1 }
|
||||
($0*1) == $0 # is number
|
||||
' <<-EOF
|
||||
$1
|
||||
EOF
|
||||
}
|
||||
|
||||
tobool() {
|
||||
# prints either 'on' or 'off'
|
||||
case $(tolower "$1")
|
||||
in
|
||||
(t|true|y|yes|on|1)
|
||||
echo 'on' ;;
|
||||
(f|false|n|no|off|0)
|
||||
echo 'off' ;;
|
||||
(*)
|
||||
printf 'Inavlid bool value: %s\n' "$2" >&2
|
||||
return 1
|
||||
;;
|
||||
esac
|
||||
return 0
|
||||
}
|
||||
|
||||
quote() { printf '%s\n' "$*" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/'/"; }
|
||||
psql_exec() {
|
||||
su - "${postgres_user}" -c "psql postgres -twAc $(quote "$*")"
|
||||
|
|
@ -31,9 +77,123 @@ psql_conf_source() {
|
|||
# NOTE: SHOW/SET are case-insentitive, so this command should also be.
|
||||
psql_exec "SELECT CASE WHEN source = 'default' OR setting = boot_val THEN 'default' ELSE source END FROM pg_settings WHERE lower(name) = lower('$1')"
|
||||
}
|
||||
psql_conf_cmp() {
|
||||
test "$(psql_exec "SHOW $1")" = "$2"
|
||||
}
|
||||
psql_conf_cmp() (
|
||||
IFS='|' read -r lower_name vartype setting unit <<-EOF
|
||||
$(psql_exec "SELECT lower(name), vartype, setting, unit FROM pg_settings WHERE lower(name) = lower('$1')")
|
||||
EOF
|
||||
|
||||
should_value=$2
|
||||
is_value=${setting}
|
||||
|
||||
# The following case contains special cases for special settings.
|
||||
case ${lower_name}
|
||||
in
|
||||
(archive_command)
|
||||
if test "${setting}" = '(disabled)'
|
||||
then
|
||||
# DAFUQ PostgreSQL?!
|
||||
# PostgreSQL returns (disabled) if the feature is inactive.
|
||||
# We cannot compare the values unless it is enabled, first.
|
||||
return 0
|
||||
fi
|
||||
;;
|
||||
(archive_mode|backslash_quote|constraint_exclusion|force_parallel_mode|huge_pages|synchronous_commit)
|
||||
# Although only 'on', 'off' are documented, PostgreSQL accepts all
|
||||
# the "likely" variants of "on" and "off".
|
||||
case $(tolower "${should_value}")
|
||||
in
|
||||
(on|off|true|false|yes|no|1|0)
|
||||
should_value=$(tobool "${should_value}")
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
esac
|
||||
|
||||
case ${vartype}
|
||||
in
|
||||
(bool)
|
||||
test -z "${unit}" || {
|
||||
# please fix the explorer if this error occurs.
|
||||
printf 'units are not supported for vartype: %s\n' "${vartype}" >&2
|
||||
exit 1
|
||||
}
|
||||
|
||||
should_value=$(tobool "${should_value}")
|
||||
|
||||
test "${is_value}" = "${should_value}"
|
||||
;;
|
||||
(enum)
|
||||
test -z "${unit}" || {
|
||||
# please fix the explorer if this error occurs.
|
||||
printf 'units are not supported with vartype: %s\n' "${vartype}" >&2
|
||||
exit 1
|
||||
}
|
||||
|
||||
# NOTE: All enums that are currently defined are lower case, but
|
||||
# PostgreSQL also accepts upper case spelling.
|
||||
should_value=$(tolower "$2")
|
||||
|
||||
test "${is_value}" = "${should_value}"
|
||||
;;
|
||||
(integer)
|
||||
# split multiples from unit, first (e.g. 8kB -> 8, kB)
|
||||
case ${unit}
|
||||
in
|
||||
([0-9]*)
|
||||
multiple=${unit%%[!0-9]*}
|
||||
unit=${unit##*[0-9 ]}
|
||||
;;
|
||||
(*) multiple=1 ;;
|
||||
esac
|
||||
|
||||
is_value=$((setting * multiple))${unit}
|
||||
|
||||
if expr "${should_value}" : '-\{0,1\}[0-9]*$' >/dev/null
|
||||
then
|
||||
# default unit
|
||||
should_value=$((should_value * multiple))${unit}
|
||||
fi
|
||||
|
||||
# then, do conversion
|
||||
# NOTE: these conversions work for integers only!
|
||||
case ${unit}
|
||||
in
|
||||
(B|[kMGT]B)
|
||||
# bytes
|
||||
is_bytes=$(tobytes "${is_value}")
|
||||
should_bytes=$(tobytes "${should_value}")
|
||||
|
||||
test $((is_bytes)) -eq $((should_bytes))
|
||||
;;
|
||||
(ms|s|min|h|d)
|
||||
# seconds
|
||||
is_ms=$(tomillisecs "${is_value}")
|
||||
should_ms=$(tomillisecs "${should_value}")
|
||||
|
||||
test $((is_ms)) -eq $((should_ms))
|
||||
;;
|
||||
('')
|
||||
# no unit
|
||||
is_int=${is_value}
|
||||
should_int=${should_value}
|
||||
|
||||
test $((is_int)) -eq $((should_int))
|
||||
;;
|
||||
esac
|
||||
;;
|
||||
(real|string)
|
||||
# NOTE: reals could possibly have units, but currently there none.
|
||||
|
||||
test -z "${unit}" || {
|
||||
# please fix the explorer if this error occurs.
|
||||
printf 'units are not supported with vartype: %s\n' "${vartype}" >&2
|
||||
exit 1
|
||||
}
|
||||
|
||||
test "${is_value}" = "${should_value}"
|
||||
;;
|
||||
esac
|
||||
)
|
||||
|
||||
psql_exec 'SELECT 1' >/dev/null || {
|
||||
echo 'Connection to PostgreSQL server failed' >&2
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue