From 89979eecefea4dc61ce2d6dbb93ea4379364c708 Mon Sep 17 00:00:00 2001
From: Bastian Dehn <hhaalo@arcor.de>
Date: Sun, 9 Aug 2026 11:02:34 +0200
Subject: [PATCH] add write log entry tests

---
 src/backup              | 35 ++++++++++++++++++++++++++++++
 src/config-example.yaml |  1 +
 tests/backup_tests.bats | 47 ++++++++++++++++++++++++++++++++++++++++-
 3 files changed, 82 insertions(+), 1 deletion(-)

diff --git a/src/backup b/src/backup
index 8fbac70..c69d086 100755
--- a/src/backup
+++ b/src/backup
@@ -9,6 +9,41 @@ errlog()
 	return $lastexit
 }
 
+get_date_time()
+{
+	date --iso-8601=secondes
+}
+
+get_backup_type()
+{
+	local config="$1"
+	local backup_path=
+	backup_path=$(echo "$config" | jq --raw-output '.backup_path')
+
+	[ -f "$backup_path/day" ] && echo "day" && return 0
+	[ -f "$backup_path/week" ] && echo "week" && return 0
+	[ -f "$backup_path/month" ] && echo "month" && return 0
+
+	echo "none"
+}
+
+log()
+{
+	local config="$1"
+	local msg="$2"
+	local logfile=
+	local datetime=
+	logfile=$(echo "$config" | jq --raw-output '.backup_logfile')
+	[ -n "$logfile" ] || return 0
+	[ "$logfile" != "null" ] || return 0
+	datetime=$(get_date_time)
+	type=$(get_backup_type "$config")
+
+	logmsg="$datetime [$type] $msg"
+	echo "ℹ️ INFO: $logmsg"
+	echo "$logmsg" >> "$logfile"
+}
+
 exists_needed_commands()
 {
 	command -v yq > /dev/null \
diff --git a/src/config-example.yaml b/src/config-example.yaml
index 70c8bba..12a1640 100644
--- a/src/config-example.yaml
+++ b/src/config-example.yaml
@@ -1,6 +1,7 @@
 backup_path: build
 backup_name: backup
 backup_count: 15
+backup_logfile: build/backup.log
 
 machines:
   testpc1:
diff --git a/tests/backup_tests.bats b/tests/backup_tests.bats
index 7a97e54..1d06ab2 100755
--- a/tests/backup_tests.bats
+++ b/tests/backup_tests.bats
@@ -847,4 +847,49 @@ teardown() {
 	[ -d build/2000-01-01_19_backup ]
 	rm --recursive build/2000-01-01_19_backup
 	rmdir build/2000-01-01_*
-}
\ No newline at end of file
+}
+
+# bats test_tags=backup:log
+@test "success no config" {
+	mkdir --parents build
+	run log "$config"
+
+	assert_success
+	assert_output ""
+}
+
+# bats test_tags=backup:log
+@test "success no log config has no logfile entry" {
+	mkdir --parents build
+	config="{}"
+	run log "$config"
+
+	assert_success
+	assert_output ""
+}
+
+write_log_entry() {
+	local type="$1"
+	mkdir --parents build
+	touch "build/$type"
+	local config=
+	config=$(yq '.' "$CONFIG_FILE")
+	get_date_time() {
+		echo "2000-01-01T23:30:45+02:00"
+	}
+
+	run log "$config" "log entry"
+
+	assert_success
+	assert_output "ℹ️ INFO: 2000-01-01T23:30:45+02:00 [$type] log entry"
+	assert_equal "$(cat "build/backup.log")" "2000-01-01T23:30:45+02:00 [$type] log entry"
+	rm "build/$type"
+	rm "build/backup.log"
+}
+
+for type in none day week month; do
+	bats_test_function --tags "backup:log" \
+		--description "success log has logfile entry for type $type" \
+		-- \
+		write_log_entry "$type"
+done
\ No newline at end of file
-- 
2.47.3