feat: release notes hyperlink for all languages

If version enabled and hyperlink enabled(global level), an hyperlink to
the release notes of the current version is generated.
The regex and the url template can be modified in the json template.

src/segment_dotnet.go

@@ -30,7 +30,10 @@ func (d *dotnet) init(props *properties, env environmentInfo) {
 		commands:     []string{"dotnet"},
 		versionParam: "--version",
 		extensions:   []string{"*.cs", "*.vb", "*.sln", "*.csproj", "*.vbproj"},
-		versionRegex: `(?P<version>[0-9]+.[0-9]+.[0-9]+)`,
+		version: &version{
+			regex:       `(?:(?P<version>((?P<major>[0-9]+).(?P<minor>[0-9]+).(?:\d{2})(?P<patch>[0-9]{1}))))`,
+			urlTemplate: "[%1s](https://github.com/dotnet/core/blob/master/release-notes/%[2]s.%[3]s/%[2]s.%[3]s.%[4]s/%[2]s.%[3]s.%[4]s.md)",
+		},
 	}
 }
 

src/segment_golang.go

@@ -15,7 +15,10 @@ func (g *golang) init(props *properties, env environmentInfo) {
 		commands:     []string{"go"},
 		versionParam: "version",
 		extensions:   []string{"*.go", "go.mod"},
-		versionRegex: `go(?P<version>[0-9]+.[0-9]+.[0-9]+)`,
+		version: &version{
+			regex:       `(?:go(?P<version>((?P<major>[0-9]+).(?P<minor>[0-9]+).(?P<patch>[0-9]+))))`,
+			urlTemplate: "[%s](https://golang.org/doc/go%s.%s)",
+		},
 	}
 }
 

src/segment_julia.go

@@ -15,7 +15,9 @@ func (j *julia) init(props *properties, env environmentInfo) {
 		commands:     []string{"julia"},
 		versionParam: "--version",
 		extensions:   []string{"*.jl"},
-		versionRegex: `julia version (?P<version>[0-9]+.[0-9]+.[0-9]+)`,
+		version: &version{
+			regex: `julia version (?P<version>[0-9]+.[0-9]+.[0-9]+)`,
+		},
 	}
 }
 

src/segment_language.go

@@ -1,9 +1,37 @@
 package main
 
+import (
+	"errors"
+	"fmt"
+	"strings"
+)
+
 type loadContext func()
 
 type inContext func() bool
 
+type version struct {
+	full        string
+	major       string
+	minor       string
+	patch       string
+	regex       string
+	urlTemplate string
+}
+
+func (v *version) parse(versionInfo string) error {
+	values := findNamedRegexMatch(v.regex, versionInfo)
+	if len(values) == 0 {
+		return errors.New("cannot parse version string")
+	}
+
+	v.full = values["version"]
+	v.major = values["major"]
+	v.minor = values["minor"]
+	v.patch = values["patch"]
+	return nil
+}
+
 type language struct {
 	props        *properties
 	env          environmentInfo
@@ -11,8 +39,7 @@ type language struct {
 	commands     []string
 	executable   string
 	versionParam string
-	versionRegex string
-	version      string
+	version      *version
 	exitCode     int
 	loadContext  loadContext
 	inContext    inContext
@@ -42,8 +69,21 @@ func (l *language) string() string {
 	if !l.hasCommand() {
 		return l.props.getString(MissingCommandTextProperty, MissingCommandText)
 	}
-	l.setVersion()
-	return l.version
+
+	err := l.setVersion()
+	if err != nil {
+		return ""
+	}
+
+	// build release notes hyperlink
+	if l.props.getBool(EnableHyperlink, false) && l.version.urlTemplate != "" {
+		version, err := TruncatingSprintf(l.version.urlTemplate, l.version.full, l.version.major, l.version.minor, l.version.patch)
+		if err != nil {
+			return l.version.full
+		}
+		return version
+	}
+	return l.version.full
 }
 
 func (l *language) enabled() bool {
@@ -77,16 +117,18 @@ func (l *language) hasLanguageFiles() bool {
 	return true
 }
 
-// getVersion returns the version and exit code returned by the executable
-func (l *language) setVersion() {
+// setVersion parses the version string returned by the command
+func (l *language) setVersion() error {
 	versionInfo, err := l.env.runCommand(l.executable, l.versionParam)
 	if exitErr, ok := err.(*commandError); ok {
 		l.exitCode = exitErr.exitCode
-		return
+		return errors.New("error executing command")
 	}
-	values := findNamedRegexMatch(l.versionRegex, versionInfo)
-	l.exitCode = 0
-	l.version = values["version"]
+	err = l.version.parse(versionInfo)
+	if err != nil {
+		return err
+	}
+	return nil
 }
 
 // hasCommand checks if one of the commands exists and sets it as executable
@@ -116,3 +158,14 @@ func (l *language) inLanguageContext() bool {
 	}
 	return l.inContext()
 }
+
+func TruncatingSprintf(str string, args ...interface{}) (string, error) {
+	n := strings.Count(str, "%s")
+	if n > len(args) {
+		return "", errors.New("Too many parameters")
+	}
+	if n == 0 {
+		return fmt.Sprintf(str, args...), nil
+	}
+	return fmt.Sprintf(str, args[:n]...), nil
+}

src/segment_language_test.go

@@ -7,7 +7,7 @@ import (
 )
 
 const (
-	universion = "1.3.3.7"
+	universion = "1.3.307"
 	uni        = "*.uni"
 	corn       = "*.corn"
 )
@@ -23,6 +23,8 @@ type languageArgs struct {
 	versionParam       string
 	versionRegex       string
 	missingCommandText string
+	urlTemplate        string
+	enableHyperlink    bool
 }
 
 func (l *languageArgs) hasvalue(value string, list []string) bool {
@@ -45,8 +47,9 @@ func bootStrapLanguageTest(args *languageArgs) *language {
 	}
 	props := &properties{
 		values: map[Property]interface{}{
-			DisplayVersion: args.displayVersion,
-			DisplayMode:    args.displayMode,
+			DisplayVersion:  args.displayVersion,
+			DisplayMode:     args.displayMode,
+			EnableHyperlink: args.enableHyperlink,
 		},
 	}
 	if args.missingCommandText != "" {
@@ -58,7 +61,10 @@ func bootStrapLanguageTest(args *languageArgs) *language {
 		extensions:   args.extensions,
 		commands:     args.commands,
 		versionParam: args.versionParam,
-		versionRegex: args.versionRegex,
+		version: &version{
+			regex:       args.versionRegex,
+			urlTemplate: args.urlTemplate,
+		},
 	}
 	return l
 }
@@ -222,3 +228,75 @@ func TestLanguageEnabledMissingCommandCustomText(t *testing.T) {
 	assert.True(t, lang.enabled())
 	assert.Equal(t, args.missingCommandText, lang.string(), "unicorn is available and uni and corn files are found")
 }
+
+func TestLanguageHyperlinkEnabled(t *testing.T) {
+	args := &languageArgs{
+		versionParam:      "--version",
+		commands:          []string{"uni", "corn"},
+		enabledCommands:   []string{"corn"},
+		extensions:        []string{uni, corn},
+		versionRegex:      `(?P<version>((?P<major>[0-9]+).(?P<minor>[0-9]+).(?P<patch>[0-9]+)))`,
+		urlTemplate:       "[%s](https://unicor.org/doc/%s.%s.%s)",
+		version:           universion,
+		enabledExtensions: []string{corn},
+		displayVersion:    true,
+		enableHyperlink:   true,
+	}
+	lang := bootStrapLanguageTest(args)
+	assert.True(t, lang.enabled())
+	assert.Equal(t, "[1.3.307](https://unicor.org/doc/1.3.307)", lang.string())
+}
+
+func TestLanguageHyperlinkEnabledWrongRegex(t *testing.T) {
+	args := &languageArgs{
+		versionParam:      "--version",
+		commands:          []string{"uni", "corn"},
+		enabledCommands:   []string{"corn"},
+		extensions:        []string{uni, corn},
+		versionRegex:      `wrong`,
+		urlTemplate:       "[%s](https://unicor.org/doc/%s.%s.%s)",
+		version:           universion,
+		enabledExtensions: []string{corn},
+		displayVersion:    true,
+		enableHyperlink:   true,
+	}
+	lang := bootStrapLanguageTest(args)
+	assert.True(t, lang.enabled())
+	assert.Equal(t, "", lang.string())
+}
+
+func TestLanguageHyperlinkEnabledLessParamInTemplate(t *testing.T) {
+	args := &languageArgs{
+		versionParam:      "--version",
+		commands:          []string{"uni", "corn"},
+		enabledCommands:   []string{"corn"},
+		extensions:        []string{uni, corn},
+		versionRegex:      `(?P<version>((?P<major>[0-9]+).(?P<minor>[0-9]+).(?P<patch>[0-9]+)))`,
+		urlTemplate:       "[%s](https://unicor.org/doc/%s)",
+		version:           universion,
+		enabledExtensions: []string{corn},
+		displayVersion:    true,
+		enableHyperlink:   true,
+	}
+	lang := bootStrapLanguageTest(args)
+	assert.True(t, lang.enabled())
+	assert.Equal(t, "[1.3.307](https://unicor.org/doc/1)", lang.string())
+}
+
+func TestLanguageHyperlinkEnabledMoreParamInTemplate(t *testing.T) {
+	args := &languageArgs{
+		versionParam:      "--version",
+		commands:          []string{"uni", "corn"},
+		enabledCommands:   []string{"corn"},
+		extensions:        []string{uni, corn},
+		versionRegex:      `(?P<version>((?P<major>[0-9]+).(?P<minor>[0-9]+).(?P<patch>[0-9]+)))`,
+		urlTemplate:       "[%s](https://unicor.org/doc/%s.%s.%s.%s)",
+		version:           universion,
+		enabledExtensions: []string{corn},
+		displayVersion:    true,
+		enableHyperlink:   true,
+	}
+	lang := bootStrapLanguageTest(args)
+	assert.True(t, lang.enabled())
+	assert.Equal(t, "1.3.307", lang.string())
+}

src/segment_node.go

@@ -15,7 +15,10 @@ func (n *node) init(props *properties, env environmentInfo) {
 		commands:     []string{"node"},
 		versionParam: "--version",
 		extensions:   []string{"*.js", "*.ts", "package.json"},
-		versionRegex: `(?P<version>[0-9]+.[0-9]+.[0-9]+)`,
+		version: &version{
+			regex:       `(?:v(?P<version>((?P<major>[0-9]+).(?P<minor>[0-9]+).(?P<patch>[0-9]+))))`,
+			urlTemplate: "[%[1]s](https://github.com/nodejs/node/blob/master/doc/changelogs/CHANGELOG_V%[2]s.md#%[1]s)",
+		},
 	}
 }
 

src/segment_python.go

@@ -32,9 +32,12 @@ func (p *python) init(props *properties, env environmentInfo) {
 		commands:     []string{"python", "python3"},
 		versionParam: "--version",
 		extensions:   []string{"*.py", "*.ipynb", "pyproject.toml", "venv.bak", "venv", ".venv"},
-		versionRegex: `Python (?P<version>[0-9]+.[0-9]+.[0-9]+)`,
 		loadContext:  p.loadContext,
 		inContext:    p.inContext,
+		version: &version{
+			regex:       `(?:Python (?P<version>((?P<major>[0-9]+).(?P<minor>[0-9]+).(?P<patch>[0-9]+))))`,
+			urlTemplate: "[%s](https://www.python.org/downloads/release/python-%s%s%s/)",
+		},
 	}
 }