src/goInstallTools: pin dlv-dap version @2f136727

This reverts commit a1cc5e5
(https://go-review.googlesource.com/c/vscode-go/+/344789)

and pins dlv-dap at go-delve/delve@2f13672

We removed pinning in a1cc5e5 because we were still actively developing
Delve DAP and the pinning made it difficult for users to pick up
the latest bug fixes.

Now Delve DAP is stable and most critical features are ready.
Let's pin the version again and prevent breakages.

We don't update the latestVersion in this change -
currently dlv-dap uses this as the minimum required version.

Updates #1850
Updates #1661

Change-Id: Ib8af635f3ee431bffa1fc505f85c9a87604f8323
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/370414
Trust: Hyang-Ah Hana Kim <[email protected]>
Reviewed-by: Polina Sokolova <[email protected]>

src/goToolsInformation.ts

@@ -223,7 +223,7 @@ export const allToolsInformation: { [key: string]: Tool } = {
 		replacedByGopls: false,
 		isImportant: true,
 		description: 'Go debugger & debug adapter (Delve DAP)',
-		defaultVersion: 'master', // Always build from the master.
+		defaultVersion: '2f13672765fe', // pinned version
 		minimumGoVersion: semver.coerce('1.12'), // dlv requires 1.12+ for build
 		latestVersion: semver.parse('v1.7.3-0.20211026171155-b48ceec161d5'),
 		latestVersionTimestamp: moment('2021-10-26', 'YYYY-MM-DD')

test/integration/install.test.ts

@@ -160,7 +160,7 @@ suite('Installation Tests', function () {
 				{ name: 'guru', versions: ['v1.0.0'], wantVersion: 'v1.0.0' },
 				{
 					name: 'dlv-dap',
-					versions: ['v1.0.0', 'master'],
+					versions: ['v1.0.0', getTool('dlv-dap').defaultVersion!],
 					wantVersion: 'v' + getTool('dlv-dap').latestVersion!.toString()
 				}
 			],
@@ -175,7 +175,7 @@ suite('Installation Tests', function () {
 				{ name: 'guru', versions: ['v1.0.0'], wantVersion: 'v1.0.0' },
 				{
 					name: 'dlv-dap',
-					versions: ['v1.0.0', 'master'],
+					versions: ['v1.0.0', getTool('dlv-dap').defaultVersion!],
 					wantVersion: 'v' + getTool('dlv-dap').latestVersion!.toString()
 				}
 			],

tools/allTools.ts.in

@@ -221,7 +221,7 @@ export const allToolsInformation: { [key: string]: Tool } = {
 		replacedByGopls: false,
 		isImportant: true,
 		description: 'Go debugger & debug adapter (Delve DAP)',
-		defaultVersion: 'master', // Always build from the master.
+		defaultVersion: '%s', // pinned version
 		minimumGoVersion: semver.coerce('1.12'), // dlv requires 1.12+ for build
 		latestVersion: semver.parse('%s'),
 		latestVersionTimestamp: moment('%s', 'YYYY-MM-DD')

tools/generate.go

@@ -15,6 +15,7 @@ package main
 import (
 	"bytes"
 	"encoding/json"
+	"errors"
 	"flag"
 	"fmt"
 	"io"
@@ -23,6 +24,7 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
+	"regexp"
 	"sort"
 	"strings"
 
@@ -235,6 +237,12 @@ func main() {
 	if err != nil {
 		log.Fatal(err)
 	}
+	// Due to https://github.com/golang/vscode-go/issues/1682, we cannot use
+	// pseudo-version as the pinned version reliably.
+	dlvRevOrStable := dlvVersion.Version
+	if rev, err := pseudoVersionRev(dlvVersion.Version); err == nil { // pseudo-version
+		dlvRevOrStable = rev
+	}
 
 	// Check for the latest gopls version.
 	versions, err := listAllModuleVersions("golang.org/x/tools/gopls")
@@ -269,7 +277,7 @@ func main() {
 	}
 
 	// TODO(suzmue): change input to json and avoid magic string printing.
-	toolsString := fmt.Sprintf(string(data), goplsVersion.Version, goplsVersion.Time[:len("YYYY-MM-DD")], goplsVersionPre.Version, goplsVersionPre.Time[:len("YYYY-MM-DD")], dlvVersion.Version, dlvVersion.Time[:len("YYYY-MM-DD")])
+	toolsString := fmt.Sprintf(string(data), goplsVersion.Version, goplsVersion.Time[:len("YYYY-MM-DD")], goplsVersionPre.Version, goplsVersionPre.Time[:len("YYYY-MM-DD")], dlvRevOrStable, dlvVersion.Version, dlvVersion.Time[:len("YYYY-MM-DD")])
 
 	// Write tools section.
 	b.WriteString(toolsString)
@@ -685,3 +693,19 @@ func describeDebugProperty(p *Property) string {
 	}
 	return b.String()
 }
+
+// pseudoVersionRev extracts the revision info if the given version is pseudo version.
+// We wanted to use golang.org/x/mod/module.PseudoVersionRev, but couldn't due to
+// an error in the CI. This is a workaround.
+//
+// It assumes the version string came from the proxy, so a valid, canonical version
+// string. Thus, the check for pseudoversion is not as robust as golang.org/x/mod/module
+// offers.
+func pseudoVersionRev(ver string) (rev string, _ error) {
+	var pseudoVersionRE = regexp.MustCompile(`^v[0-9]+\.(0\.0-|\d+\.\d+-([^+]*\.)?0\.)\d{14}-[A-Za-z0-9]+(\+[0-9A-Za-z-]+(\.[0-9A-Za-z-]+)*)?$`)
+	if strings.Count(ver, "-") < 2 || !pseudoVersionRE.MatchString(ver) {
+		return "", errors.New("not a pseudo version")
+	}
+	j := strings.LastIndex(ver, "-")
+	return ver[j+1:], nil
+}