gomanager/README.md

# gomanager

## description

Go Manager is a program that watches your package binaries and if they're not the same version of your installed go version, it rebuilds the packages.
By default it is ran every 24 hours.
It does not use fnotify or similar.
It's a simple tool which checks the current Go version vs the version of the complied binaries.

You **MUST** be root to run all commands

## scenario

You have go projects which you `git clone` and `go build`.
You can't be arsed to keep the built binaries up to date, manually, every time a new Go version is released.
Gomanager does this job for you, periodically.

## install

### pre-requisites
a functioning build environment

#### CentOS/RHEL/Rocky/Alma etc
```bash
yum groupinstall 'Development Tools'
```

#### Debian/Ubuntu
```bash
apt install build-essentials
```

#### Archlinux
```bash
pacman -S base-devel
```

### Default installation procedure
```bash
CGO_ENABLED=1 go install code.icod.de/dalu/gomanager@latest
mv ~/go/bin/gomanager /usr/local/bin/
gomanager setup
```
## usage

### add project
```bash
gomanager add \
--root-path="" \
--binary-path="" \
--service-name="" \
```

### remove project
Find out the ID of a watched project with `gomanager list`
```bash
gomanager remove --id 1
```

### list projects
```bash
gomanager list
```

### show logs of a project
Find out the ID of a watched project with `gomanager list`
```bash
gomanager logs --id 1
```

### start/run
```bash
gomanager start
```

### systemd service
read the contrib directory
The runner is ran every 24 hours.

### cron job
This runs the watcher every day a 2am
```bash
crontab -e
```
```cronexp
0 2 * * * /usr/local/bin/gomanager cron
```

### systemd timer
see the 
- contrib/gomanager-cron.service
- contrib/gomanager-cron.timer

copy to `/etc/systemd/system/` and
```bash
systemctl enable --now gomanager-cron.timer
```

# uninstall
```bash
gomanager clean
rm /usr/local/bin/gomanager
```