Fix snapshot tests to pass regardless of helm version (#572)

* Fix snapshot tests to pass regardless of helm version

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

pkg/helmexec/log.go

@@ -23,6 +23,8 @@ type logWriter struct {
 }
 
 func (w *logWriter) Write(p []byte) (int, error) {
-	w.log.Debugf("%s%s", w.prefix, strings.TrimSpace(string(p)))
+	for _, line := range strings.Split(string(p), "\n") {
+		w.log.Debugf("%s%s", w.prefix, strings.TrimSpace(line))
+	}
 	return len(p), nil
 }

test/e2e/template/helmfile/snapshot_test.go

@@ -23,6 +23,8 @@ import (
 var (
 	// e.g. https_github_com_cloudposse_helmfiles_git.ref=0.xx.0
 	chartGitFullPathRegex = regexp.MustCompile(`chart=.*git\.ref=.*/charts/.*`)
+	// helm short version regex. e.g. v3.10.2+g50f003e
+	helmShortVersionRegex = regexp.MustCompile(`v\d+\.\d+\.\d+\+[a-z0-9]+`)
 )
 
 type ociChart struct {
@@ -188,10 +190,14 @@ func TestHelmfileTemplateWithBuildCommand(t *testing.T) {
 			require.NoError(t, err, "Unable to run helmfile with args %v", args)
 
 			gotStr := string(got)
-			gotStr = strings.ReplaceAll(gotStr, fmt.Sprintf("chart=%s", wd), "chart=$WD")
 
+			// Replace all random strings
+
+			gotStr = strings.ReplaceAll(gotStr, fmt.Sprintf("chart=%s", wd), "chart=$WD")
 			// Replace go-getter path with $GoGetterPath
 			gotStr = chartGitFullPathRegex.ReplaceAllString(gotStr, `chart=$$GoGetterPath`)
+			// Replace helm version with $HelmVersion
+			gotStr = helmShortVersionRegex.ReplaceAllString(gotStr, `$$HelmVersion`)
 
 			// OCI based helm charts are pulled and exported under temporary directory.
 			// We are not sure the exact name of the temporary directory generated by helmfile,

test/e2e/template/helmfile/testdata/snapshot/pr_560/output.yaml

@@ -48,7 +48,8 @@ second-pass rendering result of "input.yaml.part.0":
 17: 
 
 merged environment: &{default map[] map[]}
-helm> v3.10.2+g50f003e
+helm> $HelmVersion
+helm> 
 Building dependency release=foo, chart=../../charts/raw-0.1.0
 exec: helm dependency build ../../charts/raw-0.1.0 --skip-refresh
 1 release(s) found in input.yaml
@@ -83,16 +84,20 @@ skipping missing secrets file matching "git::https://github.com/helmfile/helmfil
 Templating release=foo, chart=../../charts/raw-0.1.0
 exec: helm template foo ../../charts/raw-0.1.0 --values /tmp/helmfile/foo-values-79c7c784c9 --debug
 helm> install.go:192: [debug] Original chart version: ""
+helm> 
 helm> install.go:209: [debug] CHART PATH: /home/runner/work/helmfile/helmfile/test/e2e/template/helmfile/testdata/charts/raw-0.1.0
+helm> 
+helm> 
 helm> ---
-# Source: raw/templates/resources.yaml
-apiVersion: v1
-kind: ConfigMap
-metadata:
-  name: foo-1
-  namespace: default
-data:
-  foo: FOO
+helm> # Source: raw/templates/resources.yaml
+helm> apiVersion: v1
+helm> kind: ConfigMap
+helm> metadata:
+helm> name: foo-1
+helm> namespace: default
+helm> data:
+helm> foo: FOO
+helm> 
 ---
 # Source: raw/templates/resources.yaml
 apiVersion: v1