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phil 5c05a27ae2 Port Home Assistant backup script to Go (v3.1.1)

Rewrite home_assistant_backup.sh as a single Go binary that reads the
existing home_assistant_backup.conf unchanged.

- Create a backup over SSH, scp it locally, and prune old backups both
  on the HA host (when free space is low) and locally
- Send ntfy and Discord notifications at the same points as the script
- Drop the jq and yq dependencies: parse `ha backups --raw-json` and
  `ha backup new --raw-json` in Go, falling back to `slug:` line parsing
- Add timestamped progress output, a heartbeat while HA builds the
  backup, and live size/percent/speed reporting during the copy
- Build the Discord payload with json.Marshal and validate backup slugs
  before using them in remote commands
- Abort with a notification if the remote disk-space check fails
- Add -config and -version flags
- Build with CGO_ENABLED=0 for a static binary that runs on older glibc

2026-11-05 16:40:40 +00:00

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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

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.

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ha-backup v3.1.1

Build

Run

789 B

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