packer_test: added inline shebang test cases for shell provisioner

packer_test/provisioner_tests/shell/provisioner_test.go

@@ -0,0 +1,67 @@
+package plugin_tests
+
+import (
+	"os"
+
+	"github.com/hashicorp/packer/packer_test/common/check"
+)
+
+func (ts *PackerShellProvisionerTestSuite) TestNoShebangInScript() {
+	dir := ts.MakePluginDir()
+	defer dir.Cleanup()
+
+	ts.PackerCommand().UsePluginDir(dir).
+		SetArgs("plugins", "install", "github.com/hashicorp/docker").
+		Assert(check.MustSucceed())
+
+	ts.PackerCommand().UsePluginDir(dir).
+		AddEnv("HOME", os.Getenv("HOME")).
+		AddEnv("PATH", os.Getenv("PATH")).
+		SetArgs("build", "templates/no_shebang_in_script.pkr.hcl").
+		Assert(check.MustSucceed())
+}
+
+func (ts *PackerShellProvisionerTestSuite) TestShebangInInlineScript() {
+	dir := ts.MakePluginDir()
+	defer dir.Cleanup()
+
+	ts.PackerCommand().UsePluginDir(dir).
+		SetArgs("plugins", "install", "github.com/hashicorp/docker").
+		Assert(check.MustSucceed())
+
+	ts.PackerCommand().UsePluginDir(dir).
+		AddEnv("HOME", os.Getenv("HOME")).
+		AddEnv("PATH", os.Getenv("PATH")).
+		SetArgs("build", "templates/shebang_in_inline.pkr.hcl").
+		Assert(check.MustSucceed())
+}
+
+func (ts *PackerShellProvisionerTestSuite) TestShebangAsOption() {
+	dir := ts.MakePluginDir()
+	defer dir.Cleanup()
+
+	ts.PackerCommand().UsePluginDir(dir).
+		SetArgs("plugins", "install", "github.com/hashicorp/docker").
+		Assert(check.MustSucceed())
+
+	ts.PackerCommand().UsePluginDir(dir).
+		AddEnv("HOME", os.Getenv("HOME")).
+		AddEnv("PATH", os.Getenv("PATH")).
+		SetArgs("build", "templates/shebang_as_option.pkr.hcl").
+		Assert(check.MustSucceed())
+}
+
+func (ts *PackerShellProvisionerTestSuite) TestShebangAsOptionNotInline() {
+	dir := ts.MakePluginDir()
+	defer dir.Cleanup()
+
+	ts.PackerCommand().UsePluginDir(dir).
+		SetArgs("plugins", "install", "github.com/hashicorp/docker").
+		Assert(check.MustSucceed())
+
+	ts.PackerCommand().UsePluginDir(dir).
+		AddEnv("HOME", os.Getenv("HOME")).
+		AddEnv("PATH", os.Getenv("PATH")).
+		SetArgs("build", "templates/no_shebang_inline_but_as_option.pkr.hcl").
+		Assert(check.MustSucceed())
+}

packer_test/provisioner_tests/shell/suite_test.go

@@ -0,0 +1,23 @@
+package plugin_tests
+
+import (
+	"testing"
+
+	"github.com/hashicorp/packer/packer_test/common"
+	"github.com/stretchr/testify/suite"
+)
+
+type PackerShellProvisionerTestSuite struct {
+	*common.PackerTestSuite
+}
+
+func Test_PackerPluginSuite(t *testing.T) {
+	baseSuite, cleanup := common.InitBaseSuite(t)
+	defer cleanup()
+
+	ts := &PackerShellProvisionerTestSuite{
+		baseSuite,
+	}
+
+	suite.Run(t, ts)
+}

packer_test/provisioner_tests/shell/templates/no_shebang_in_script.pkr.hcl

@@ -0,0 +1,14 @@
+source "docker" "test" {
+	image = "debian:bookworm"
+	discard = true
+}
+
+build {
+	sources = ["docker.test"]
+
+	provisioner "shell" {
+		inline = [
+			"cat $0 | head -1 | grep -E '^#!/bin/sh -e'",
+		]
+	}
+}

packer_test/provisioner_tests/shell/templates/no_shebang_inline_but_as_option.pkr.hcl

@@ -0,0 +1,17 @@
+source "docker" "test" {
+	image = "debian:bookworm"
+	discard = true
+}
+
+build {
+	sources = ["docker.test"]
+
+	provisioner "shell" {
+		inline_shebang = "/bin/bash -ex"
+		inline = [
+			"head -1 <\"$0\" | grep -qE '^#!/bin/bash'",
+			"if grep -qE \"^#!/bin/sh\" <\"$0\"; then exit 1; fi",
+			"cat \"$0\""
+		]
+	}
+}

packer_test/provisioner_tests/shell/templates/shebang_as_option.pkr.hcl

@@ -0,0 +1,17 @@
+source "docker" "test" {
+	image = "debian:bookworm"
+	discard = true
+}
+
+build {
+	sources = ["docker.test"]
+
+	provisioner "shell" {
+		inline_shebang = "/bin/bash -ex"
+		inline = [
+			"#!/bin/sh",
+			"cat \"$0\" | head -1 | grep -qE '^#!/bin/bash'",
+			"cat \"$0\""
+		]
+	}
+}

packer_test/provisioner_tests/shell/templates/shebang_in_inline.pkr.hcl

@@ -0,0 +1,15 @@
+source "docker" "test" {
+	image = "debian:bookworm"
+	discard = true
+}
+
+build {
+	sources = ["docker.test"]
+
+	provisioner "shell" {
+		inline = [
+			"#!/bin/bash -e",
+			"cat $0 | head -1 | grep -E '#!/bin/bash -e'"
+		]
+	}
+}