Add plan summary to unfolded part of comment

server/events/markdown_renderer.go

@@ -76,6 +76,7 @@ type resultData struct {
 
 type planSuccessData struct {
 	models.PlanSuccess
+	PlanSummary        string
 	PlanWasDeleted     bool
 	DisableApply       bool
 	DisableRepoLocking bool
@@ -147,7 +148,7 @@ func (m *MarkdownRenderer) renderProjectResults(results []models.ProjectResult,
 			})
 		} else if result.PlanSuccess != nil {
 			if m.shouldUseWrappedTmpl(vcsHost, result.PlanSuccess.TerraformOutput) {
-				resultData.Rendered = m.renderTemplate(planSuccessWrappedTmpl, planSuccessData{PlanSuccess: *result.PlanSuccess, PlanWasDeleted: common.PlansDeleted, DisableApply: common.DisableApply, DisableRepoLocking: common.DisableRepoLocking})
+				resultData.Rendered = m.renderTemplate(planSuccessWrappedTmpl, planSuccessData{PlanSuccess: *result.PlanSuccess, PlanSummary: result.PlanSuccess.Summary(), PlanWasDeleted: common.PlansDeleted, DisableApply: common.DisableApply, DisableRepoLocking: common.DisableRepoLocking})
 			} else {
 				resultData.Rendered = m.renderTemplate(planSuccessUnwrappedTmpl, planSuccessData{PlanSuccess: *result.PlanSuccess, PlanWasDeleted: common.PlansDeleted, DisableApply: common.DisableApply, DisableRepoLocking: common.DisableRepoLocking})
 			}
@@ -280,7 +281,8 @@ var planSuccessWrappedTmpl = template.Must(template.New("").Parse(
 		"{{.TerraformOutput}}\n" +
 		"```\n\n" +
 		planNextSteps + "\n" +
-		"</details>" +
+		"</details>" + "\n" +
+		"{{.PlanSummary}}" +
 		"{{ if .HasDiverged }}\n\n:warning: The branch we're merging into is ahead, it is recommended to pull new commits first.{{end}}"))
 
 var policyCheckSuccessUnwrappedTmpl = template.Must(template.New("").Parse(

server/events/markdown_renderer_test.go

@@ -1210,7 +1210,7 @@ func TestRenderProjectResults_WrapSingleProject(t *testing.T) {
 		},
 		{
 			VCSHost:    models.Github,
-			Output:     strings.Repeat("line\n", 13),
+			Output:     strings.Repeat("line\n", 13) + fmt.Sprintf("No changes. Infrastructure is up-to-date."),
 			ShouldWrap: true,
 		},
 		{
@@ -1234,7 +1234,7 @@ func TestRenderProjectResults_WrapSingleProject(t *testing.T) {
 		{
 			VCSHost:                 models.Gitlab,
 			GitlabCommonMarkSupport: true,
-			Output:                  strings.Repeat("line\n", 13),
+			Output:                  strings.Repeat("line\n", 13) + fmt.Sprintf("No changes. Infrastructure is up-to-date."),
 			ShouldWrap:              true,
 		},
 		{
@@ -1309,6 +1309,7 @@ $$$
 * :repeat: To **plan** this project again, comment:
     * $replancmd$
 </details>
+No changes. Infrastructure is up-to-date.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:
@@ -1414,7 +1415,7 @@ $$$
 
 func TestRenderProjectResults_MultiProjectPlanWrapped(t *testing.T) {
 	mr := events.MarkdownRenderer{}
-	tfOut := strings.Repeat("line\n", 13)
+	tfOut := strings.Repeat("line\n", 13) + fmt.Sprintf("Plan: 1 to add, 0 to change, 0 to destroy.")
 	rendered := mr.Render(events.CommandResult{
 		ProjectResults: []models.ProjectResult{
 			{
@@ -1457,6 +1458,7 @@ $$$
 * :repeat: To **plan** this project again, comment:
     * $staging-replan-cmd$
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 ### 2. dir: $.$ workspace: $production$
@@ -1472,6 +1474,7 @@ $$$
 * :repeat: To **plan** this project again, comment:
     * $production-replan-cmd$
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/events/models/models.go

@@ -20,6 +20,7 @@ import (
 	"fmt"
 	"net/url"
 	paths "path"
+	"regexp"
 	"strings"
 	"time"
 
@@ -491,6 +492,16 @@ type PlanSuccess struct {
 	HasDiverged bool
 }
 
+// Summary extracts one line summary of plan changes from TerraformOutput.
+func (p *PlanSuccess) Summary() string {
+	r := regexp.MustCompile(`Plan: \d+ to add, \d+ to change, \d+ to destroy.`)
+	if match := r.FindString(p.TerraformOutput); match != "" {
+		return match
+	}
+	r = regexp.MustCompile(`No changes. Infrastructure is up-to-date.`)
+	return r.FindString(p.TerraformOutput)
+}
+
 // PolicyCheckSuccess is the result of a successful policy check run.
 type PolicyCheckSuccess struct {
 	// PolicyCheckOutput is the output from policy check binary(conftest|opa)

server/events/models/models_test.go

@@ -484,6 +484,58 @@ func TestProjectResult_PlanStatus(t *testing.T) {
 	}
 }
 
+func TestPlanSuccess_Summary(t *testing.T) {
+	cases := []struct {
+		p         models.ProjectResult
+		expResult string
+	}{
+		{
+			p: models.ProjectResult{
+				PlanSuccess: &models.PlanSuccess{
+					TerraformOutput: `
+					An execution plan has been generated and is shown below.
+					Resource actions are indicated with the following symbols:
+					  - destroy
+
+					Terraform will perform the following actions:
+
+					  - null_resource.hi[1]
+
+
+					Plan: 0 to add, 0 to change, 1 to destroy.`,
+				},
+			},
+			expResult: "Plan: 0 to add, 0 to change, 1 to destroy.",
+		},
+		{
+			p: models.ProjectResult{
+				PlanSuccess: &models.PlanSuccess{
+					TerraformOutput: `
+					An execution plan has been generated and is shown below.
+					Resource actions are indicated with the following symbols:
+
+					No changes. Infrastructure is up-to-date.`,
+				},
+			},
+			expResult: "No changes. Infrastructure is up-to-date.",
+		},
+		{
+			p: models.ProjectResult{
+				PlanSuccess: &models.PlanSuccess{
+					TerraformOutput: `No match, expect empty`,
+				},
+			},
+			expResult: "",
+		},
+	}
+
+	for _, c := range cases {
+		t.Run(c.expResult, func(t *testing.T) {
+			Equals(t, c.expResult, c.p.PlanSuccess.Summary())
+		})
+	}
+}
+
 func TestPullStatus_StatusCount(t *testing.T) {
 	ps := models.PullStatus{
 		Projects: []models.ProjectStatus{

server/testfixtures/test-repos/automerge/exp-output-autoplan.txt

@@ -29,6 +29,7 @@ Plan: 1 to add, 0 to change, 0 to destroy.
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d dir1`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 ### 2. dir: `dir2` workspace: `default`
@@ -57,6 +58,7 @@ Plan: 1 to add, 0 to change, 0 to destroy.
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d dir2`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/modules-yaml/exp-output-autoplan.txt

@@ -32,6 +32,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d staging`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 ### 2. dir: `production` workspace: `default`
@@ -63,6 +64,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d production`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/modules/exp-output-autoplan-only-staging.txt

@@ -28,6 +28,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d staging`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/modules/exp-output-plan-production.txt

@@ -28,6 +28,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d production`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/modules/exp-output-plan-staging.txt

@@ -28,6 +28,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d staging`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/policy-checks-apply-reqs/exp-output-autoplan.txt

@@ -28,6 +28,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d .`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/policy-checks-diff-owner/exp-output-autoplan.txt

@@ -28,6 +28,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d .`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/policy-checks-multi-projects/exp-output-autoplan.txt

@@ -32,6 +32,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d dir1`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 ### 2. dir: `dir2` workspace: `default`
@@ -63,6 +64,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d dir2`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/policy-checks/exp-output-autoplan.txt

@@ -28,6 +28,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d .`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/server-side-cfg/exp-output-autoplan.txt

@@ -36,6 +36,7 @@ postplan custom
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d .`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 ### 2. dir: `.` workspace: `staging`
@@ -69,6 +70,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -w staging`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/simple-yaml/exp-output-autoplan.txt

@@ -37,6 +37,7 @@ postplan
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d .`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 ### 2. dir: `.` workspace: `staging`
@@ -69,6 +70,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -w staging`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/simple/exp-output-atlantis-plan-new-workspace.txt

@@ -39,6 +39,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -w new_workspace -- -var var=new_workspace`
 </details>
+Plan: 3 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/simple/exp-output-atlantis-plan-var-overridden.txt

@@ -39,6 +39,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d . -- -var var=overridden`
 </details>
+Plan: 3 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/simple/exp-output-atlantis-plan.txt

@@ -39,6 +39,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d . -- -var var=default_workspace`
 </details>
+Plan: 3 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/simple/exp-output-autoplan.txt

@@ -39,6 +39,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -d .`
 </details>
+Plan: 3 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/tfvars-yaml-no-autoplan/exp-output-plan-default.txt

@@ -29,6 +29,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -p default`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/tfvars-yaml-no-autoplan/exp-output-plan-staging.txt

@@ -29,6 +29,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -p staging`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment:

server/testfixtures/test-repos/tfvars-yaml/exp-output-autoplan.txt

@@ -35,6 +35,7 @@ workspace=default
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -p default`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 ### 2. project: `staging` dir: `.` workspace: `default`
@@ -67,6 +68,7 @@ Changes to Outputs:
 * :repeat: To **plan** this project again, comment:
     * `atlantis plan -p staging`
 </details>
+Plan: 1 to add, 0 to change, 0 to destroy.
 
 ---
 * :fast_forward: To **apply** all unapplied plans from this pull request, comment: