MikeChristianson

init_config:
  mibs_folder: /mibs
  profiles:
    generic:
      definition_file: _generic-host-resources.yaml

instances:
  - ip_address: $REPLACE_WITH_SYNOLOGY_IP_ADDRESS
    community_string: public
    snmp_version: 2

MikeChristianson

Optional<T>

Mike Christianson

^ Added in Java 8 (2014)

^ Optional is a solution to a problem. The problem of null. But, what is null?

MikeChristianson

# Rather than create a whole new hass component, this minimal `rest` sensor configuration is sufficient for a
# high-quality National Weather Service point forecast. 
# See https://forecast-v3.weather.gov/documentation for details on this point-based GeoJSON forecast and more.
# Thanks to the National Weather Service for their efforts providing timely weather data to protect life and property.
sensor Forecast:
  - platform: rest
    name: Forecast
    resource: https://api.weather.gov/points/[LATITUDE],[LONGITUDE]/forecast # substitute your EPSG:4326 lat/long
    value_template: "{{ value_json.properties.periods[0].name }}: {{ value_json.properties.periods[0].detailedForecast }}"
    headers:

MikeChristianson

↑ ↑ ↓ ↓ ← → ← → Ⓑ Ⓐ

IntelliJ, WebStorm, PyCharm JetBrains Keyboard Navigation[^ ]

[^ ]: Mike Christianson

---

MikeChristianson

#!/bin/zsh -ex
# Restores a compressed Subversion dump to a new Subversion repository with its original repository UUID.
# Uses `svndumptool` to ensure improper EOLs in svn:log and svn:ignore are fixed.
# Paths are hardcoded, but easily changed to suit needs.
repo=$1
cd /data/svn
source svnenv/bin/activate
gunzip /extract/Recover/${repo}.gzip -c | pv -eta > ${repo}.svn
svndumptool.py eolfix-revprop svn:log ${repo}.svn ${repo}.eolfix-revprop-log.svn
rm ${repo}.svn

MikeChristianson

/**
 * Safely gets the first element of a {@link List}
 * @param list a {@code List}
 * @param <E> type of elements in list
 * @return the first element of list or {@link Optional#absent()} if absent or null
 */
@Nonnull
private <E> Optional<E> first(@Nullable List<E> list) {
    if (list == null || list.isEmpty()) {
        return Optional.absent();