54 lines
1.3 KiB
Bash
Executable File
54 lines
1.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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umask 077
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ROOT=$(CDPATH='' cd -- "$(dirname -- "$0")/.." && pwd)
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target_dir="$ROOT/.tools/restic"
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target="$target_dir/restic"
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image=${WNH_BACKUP_TOOLS_IMAGE:-who-need-help:backup-tools}
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expected='restic 0.19.1 compiled with go1.26.7'
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if [[ -x "$target" ]] && [[ "$($target version)" == "$expected"* ]]; then
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printf 'Pinned Restic is already available: %s\n' "$target"
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exit 0
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fi
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for command in docker install mktemp; do
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command -v "$command" >/dev/null 2>&1 || {
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echo "Required command is unavailable: $command" >&2
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exit 2
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}
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done
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mkdir -p "$target_dir"
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chmod 700 "$ROOT/.tools" "$target_dir"
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docker build --tag "$image" --file "$ROOT/Dockerfile.backup" "$ROOT"
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container=$(docker create "$image" restic version)
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partial=$(mktemp "$target_dir/restic.XXXXXX")
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cleanup() {
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docker rm --force "$container" >/dev/null 2>&1 || true
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rm -f "$partial"
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}
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trap cleanup EXIT HUP INT TERM
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docker cp "$container:/usr/local/bin/restic" "$partial"
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chmod 700 "$partial"
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actual=$($partial version)
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if [[ "$actual" != "$expected"* ]]; then
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printf 'Unexpected Restic build: %s\n' "$actual" >&2
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exit 1
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fi
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mv "$partial" "$target"
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partial=
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trap - EXIT HUP INT TERM
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docker rm --force "$container" >/dev/null
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printf 'Installed pinned Restic: %s\n' "$target"
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printf 'Version: %s\n' "$actual"
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