Initial commit

check.sh

@@ -0,0 +1,54 @@
+#!/usr/bin/env bash
+
+set -eu -o pipefail
+verbose='' # we test for (non)emptiness
+quiet='' # we test for (non)emptiness
+
+source lib.sh
+
+exitCode=0
+checkNotPassed() {
+	echo "WARN: $1"
+	if [ "$exitCode" -eq 0 ]; then
+		exitCode=2
+	fi
+}
+
+isRecentInRepo() {
+	local repoName="$1" targetName="$2" maxAge="$3"
+	checkPathComponent "$repoName"
+	checkPathComponent "$targetName"
+	local targetFile="targets/$targetName" backupsDir="backups/$repoName"
+	local hostname="$(< "$targetFile" jq --raw-output .hostname)" backedUpPath="$(< "$targetFile" jq --raw-output .path)"
+	local dates=""
+	while IFS='' read -r -d '' backupFile; do
+		verbose "Processing $backupFile"
+		local date
+		if date="$(< "$backupFile" jq --exit-status --raw-output --arg hostname "$hostname" --arg path "$backedUpPath" 'if $hostname == .hostname and any(.paths[]; . == $path) then .time | sub("\\.\\d+"; "") | strptime("%Y-%m-%dT%H:%M:%S%z") | mktime else false end')"; then
+			verbose "The snapshot is relevant and was created at $date"
+			dates="$dates"$'\n'"$date"
+		fi
+	done < <(find "$backupsDir" -maxdepth 1 -type f -print0)
+	local max="$(echo "$dates" | sort --numeric-sort --reverse | head -n 1)"
+	if [ -n "$max" ]; then
+		local age="$(("$now"-"$max"))"
+		verbose "Last backup was at $max, now it's $now, the age is $age"
+		if [ "$age" -gt "$maxAge" ]; then
+			checkNotPassed "$targetName on $repoName is too old"
+		else
+			info "$targetName on $repoName is fresh enough"
+		fi
+	fi
+}
+
+isRecent() {
+	abort "isRecent is not implemented yet"
+}
+
+now="$(date +%s)"
+
+##### End of definitions, user defined checks go below this line
+
+##### End of user defined checks, the rest of this file is a predefined trailer
+
+exit "$exitCode"