# ha-backup v3.1.1

Go port of `home_assistant_backup.sh`. Uses the same `home_assistant_backup.conf`.

## Build
    CGO_ENABLED=0 go build -trimpath -ldflags="-s -w" -o ha-backup .

Override the version at build time if needed:
    CGO_ENABLED=0 go build -trimpath -ldflags="-s -w -X main.version=3.1.2" -o ha-backup .

Check the version:
    ./ha-backup -version

Cross-compile examples:
    GOOS=linux GOARCH=amd64 go build -o ha-backup-linux-amd64 .
    GOOS=linux GOARCH=arm64 go build -o ha-backup-linux-arm64 .   # Raspberry Pi / ARM NAS


## Logging

ha-backup writes a log to `/var/log/ha-backup.log` by default. Each line is timestamped, and the file is appended to on every run. The same output is still printed to the console.

### Create the log file

Writing to `/var/log` requires elevated permissions, so create the file once and give ownership to the user that runs the backup. Replace `backupuser` with that user (use `root` if you run it as root):


If you'd rather do it in steps:

```
sudo touch /var/log/ha-backup.log
sudo chown backupuser:backupuser /var/log/ha-backup.log
sudo chmod 640 /var/log/ha-backup.log
```

If the log file can't be opened, ha-backup prints a warning and continues the backup without file logging.

### Change or disable the log location

Set `LOG_FILE` in `home_assistant_backup.conf`:

```bash
LOG_FILE="/var/log/ha-backup.log"   # default
LOG_FILE="/home/backupuser/ha-backup.log"   # custom path
LOG_FILE="none"                     # disable file logging
```


## Run
    ./ha-backup # looks for home_assistant_backup.conf next to the binary, then in cwd
    ./ha-backup -config /path/to.conf


Requires `ssh` and `scp` on the machine running it. `jq` and `yq` are no longer needed.