watchdog-symlinker

How to run

Help

$ watchdog-symlinker.exe -h

Usage of watchdog-symlinker.exe:
  -c, --command string                 specify service command. (available list : install|uninstall|start|stop)
  -d, --directory string               specify full path to watch directory. (regex string)
  -f, --file string                    specify file name pattern to watch changes. (regex string)
      --healthcheckHttpAddr string     specify http healthcheck waiting host:port. (default "127.0.0.1:12250")
      --healthcheckHttpDisabled        disable local http healthcheck.
      --healthcheckStatsdAddr string   specify statsd healthcheck waiting host:port. (default "127.0.0.1:8125")
      --healthcheckStatsdDisabled      disable datadog statsd healthcheck.
  -s, --symlink string                 specify symlink name.
      --useFileWalk                    use walk directory instead of file event.
pflag: help requested

Console

minimum configuration.

mkdir C:/watchdog/logfiles
watchdog-symlinker.exe -f ^.*.log$ -d C:/watchdog/logfiles -s current.log

monitor until folder generated.

watchdog-symlinker.exe -f ^.*.log$ -d "^C:/watchdog/logfiles/fugafuga/hogemoge.*/fugafuga" -s current.log

Windows Service

combination of install and start service.

watchdog-symlinker.exe -c install -f ^.*.log$ -d C:/watchdog/logfiles -s current.log && watchdog-symlinker.exe -c start

Samples

Install Service (with arguments)

watchdog-symlinker.exe -c install -f ^.*.log$ -d C:/watchdog/logfiles -s current.log

Start Service

watchdog-symlinker.exe -c start

Stop Service

watchdog-symlinker.exe -c stop

Uninstall Service

watchdog-symlinker.exe -c uninstall

Customize

You can customize behaiviour with cli arguments.

File Watcher method

on Windows, default will use file event with rjeczalik/notify, but you can change it's behaiviour not to use File Event. use --useFileWalk to use event raise via radovskyb/watcher.

other platform will use useFileWalk as default.

NOTICE: --useFileWalk may cause high cpu than file event on directory which contains large number of files.

watchdog-symlinker.exe -f ^.*.log$ -d "^C:/watchdog/logfiles" -s current.log --useFileWalk

Control httphealthcheck

httphealtcheck is enabled by default on 127.0.0.1:12250.

use --healthcheckHttpDisabled to disable healthcheck.

watchdog-symlinker.exe -f ^.*.log$ -d "^C:/watchdog/logfiles" -s current.log --healthcheckHttpDisabled

use --healthcheckHttpAddr to change httphealthcheck waitinig addr. sample will change to 0.0.0.0:8080

watchdog-symlinker.exe -f ^.*.log$ -d "^C:/watchdog/logfiles" -s current.log --healthcheckHttpAddr 0.0.0.0:8080

Control statsdhealthcheck

datadog statsdhealtcheck is enabled by default on 127.0.0.1:8125.

use --healthcheckStatsdDisabled to disable healthcheck.

watchdog-symlinker.exe -f ^.*.log$ -d "^C:/watchdog/logfiles" -s current.log --healthcheckStatsdDisabled

use --healthcheckStatsdAddr to change statsdhealthcheck waitinig addr. sample will change to 127.0.0.1:8127

watchdog-symlinker.exe -f ^.*.log$ -d "^C:/watchdog/logfiles" -s current.log --healthcheckStatsdAddr 127.0.0.1:8127

build

This repo using go modules, please set GO111MODULE=on to build.

export GO111MODULE=on

docker build

docker build -t watchdog-symlinker .

get binary on local

go build

Lint

install lint at none repo path with temporary remove GO111MODULE=on.

# Windows
# set GO111MODULE=
unset GO111MODULE
go get -u github.com/golangci/golangci-lint/cmd/golangci-lint

update package.

go build

run lint.

golangci-lint run