fix: oci pull directory conflict when download twice (#914)

* fix: oci pull directory conflict when download twice

Signed-off-by: yxxhero <aiopsclub@163.com>

* add test cases

test/integration/test-cases/helmfile-double-fetch.sh

@@ -0,0 +1,13 @@
+helmfile_double_fetch_case_input_dir="${cases_dir}/helmfile-double-fetch/input"
+
+config_file="helmfile.yaml"
+
+test_start "helmfile fetch with helmfile_double_fetch"
+
+info "Comparing fetch/helmfile_double_fetch_first"
+${helmfile} -f ${helmfile_double_fetch_case_input_dir}/${config_file} fetch --output-dir /tmp/chartdir || fail "\"helmfile fetch\" shouldn't fail"
+
+info "Comparing template/helmfile_double_fetch_second"
+${helmfile} -f ${helmfile_double_fetch_case_input_dir}/${config_file} fetch --output-dir /tmp/chartdir || fail "\"helmfile fetch\" shouldn't fail"
+
+test_pass "helmfile fetch with helmfile_double_fetch"

test/integration/test-cases/helmfile-double-fetch/input/helmfile.yaml

@@ -0,0 +1,8 @@
+repositories:
+  - name: docker
+    url: registry-1.docker.io
+    oci: true
+releases:
+  - name: docker/bitnamicharts/matomo
+    chart: docker/bitnamicharts/matomo
+    version: "1.1.2"