feat: expose regex to filter templates in list- commands

Author: crhntr

…a/howto_list_template_callers_filter.txt …testdata/howto_list_template_callers.txtcmd/muxt/testdata/howto_list_template_callers_filter.txt renamed to cmd/muxt/testdata/howto_list_template_callers.txt cmd/muxt/testdata/howto_list_template_callers_filter.txt renamed to cmd/muxt/testdata/howto_list_template_callers.txt

@@ -1,14 +1,19 @@
 # Tests filtering template callers with --template flag
 
-muxt list-template-callers --template=header
+muxt list-template-callers --match=header
 stdout 'template "header" called by:'
 ! stdout 'template "footer" called by:'
 
-muxt list-template-callers --template=header --template=footer
+muxt list-template-callers --match=header --match=footer
 stdout 'template "header" called by:'
 stdout 'template "footer" called by:'
 ! stdout 'template "layout" called by:'
 
+# 'callers' is an alias for 'list-template-callers'
+muxt callers --match=header
+stdout 'template "header" called by:'
+! stdout 'template "footer" called by:'
+
 -- go.mod --
 module server
 

cmd/muxt/testdata/howto_list_template_callers_alias.txt

@@ -1,14 +1,19 @@
 # Tests filtering template calls with --template flag
 
-muxt list-template-calls --template=layout
+muxt list-template-calls --match=layout
 stdout 'template "layout" calls:'
 ! stdout 'template "page.gohtml" calls:'
 
-muxt list-template-calls --template=layout --template='page.gohtml'
+muxt list-template-calls --match=layout --match='page\.gohtml'
 stdout 'template "layout" calls:'
 stdout 'template "page.gohtml" calls:'
 ! stdout 'template "header" calls:'
 
+# 'calls' is an alias for 'list-template-calls'
+muxt calls --match=layout
+stdout 'template "layout" calls:'
+! stdout 'template "page.gohtml" calls:'
+
 -- go.mod --
 module server
 

…ata/howto_list_template_calls_filter.txt …t/testdata/howto_list_template_calls.txtcmd/muxt/testdata/howto_list_template_calls_filter.txt renamed to cmd/muxt/testdata/howto_list_template_calls.txt cmd/muxt/testdata/howto_list_template_calls_filter.txt renamed to cmd/muxt/testdata/howto_list_template_calls.txt

@@ -5,6 +5,7 @@ import (
 	"go/token"
 	"go/types"
 	"path/filepath"
+	"regexp"
 	"strings"
 	"text/template"
 )
@@ -18,10 +19,10 @@ var templates = template.Must(template.New("output").Funcs(template.FuncMap{
 }).ParseFS(outputTemplates, "*"))
 
 // matchesAny returns true if value contains any of the filter patterns (case-insensitive substring match)
-func matchesAny(value string, filters []string) bool {
+func matchesAny(value string, filters []*regexp.Regexp) bool {
 	valueLower := strings.ToLower(value)
 	for _, filter := range filters {
-		if strings.Contains(valueLower, strings.ToLower(filter)) {
+		if filter.MatchString(valueLower) {
 			return true
 		}
 	}

cmd/muxt/testdata/howto_list_template_calls_alias.txt

@@ -7,6 +7,7 @@ import (
 	"html/template"
 	"io"
 	"maps"
+	"regexp"
 	"slices"
 	"text/template/parse"
 
@@ -18,7 +19,7 @@ import (
 
 type TemplateCallersConfiguration struct {
 	TemplatesVariable string
-	FilterTemplates   []string
+	FilterTemplates   []*regexp.Regexp
 }
 
 type TemplateCallers struct {

internal/analysis/analysis.go

@@ -6,6 +6,7 @@ import (
 	"html/template"
 	"io"
 	"maps"
+	"regexp"
 	"slices"
 	"text/template/parse"
 
@@ -17,7 +18,7 @@ import (
 
 type TemplateCallsConfiguration struct {
 	TemplatesVariable string
-	FilterTemplates   []string
+	FilterTemplates   []*regexp.Regexp
 }
 
 type TemplateCalls struct {

internal/analysis/template_callers.go

@@ -11,6 +11,7 @@ import (
 	"log"
 	"os"
 	"path/filepath"
+	"regexp"
 	"runtime/debug"
 	"strings"
 
@@ -314,6 +315,7 @@ func writeCodeGenerationComment(w io.StringWriter, args []string) {
 func listTemplateCallersCommand(wd *string) *cobra.Command {
 	var config analysis.TemplateCallersConfiguration
 
+	var patterns []string
 	cmd := &cobra.Command{
 		Use:     listTemplateCallersCommandName,
 		Aliases: []string{"callers"},
@@ -322,6 +324,13 @@ func listTemplateCallersCommand(wd *string) *cobra.Command {
 			if config.TemplatesVariable == "" {
 				config.TemplatesVariable = defaultTemplatesVariableName
 			}
+			for _, pattern := range patterns {
+				pat, err := regexp.Compile(pattern)
+				if err != nil {
+					return err
+				}
+				config.FilterTemplates = append(config.FilterTemplates, pat)
+			}
 
 			fileSet, pl, err := asteval.LoadPackages(*wd)
 			if err != nil {
@@ -336,13 +345,14 @@ func listTemplateCallersCommand(wd *string) *cobra.Command {
 	}
 
 	addUseTemplatesVarToFlagSet(cmd.Flags(), &config.TemplatesVariable)
-	cmd.Flags().StringArrayVar(&config.FilterTemplates, "template", nil, "filter by template name (can specify multiple times)")
+	cmd.Flags().StringArrayVar(&patterns, "match", nil, "filter by template name (can specify multiple regular expressions)")
 
 	return cmd
 }
 
 func listTemplateCallsCommand(wd *string) *cobra.Command {
 	var config analysis.TemplateCallsConfiguration
+	var patterns []string
 
 	cmd := &cobra.Command{
 		Use:     listTemplateCallsCommandName,
@@ -352,6 +362,13 @@ func listTemplateCallsCommand(wd *string) *cobra.Command {
 			if config.TemplatesVariable == "" {
 				config.TemplatesVariable = defaultTemplatesVariableName
 			}
+			for _, pattern := range patterns {
+				pat, err := regexp.Compile(pattern)
+				if err != nil {
+					return err
+				}
+				config.FilterTemplates = append(config.FilterTemplates, pat)
+			}
 
 			_, pl, err := asteval.LoadPackages(*wd)
 			if err != nil {
@@ -366,7 +383,7 @@ func listTemplateCallsCommand(wd *string) *cobra.Command {
 	}
 
 	addUseTemplatesVarToFlagSet(cmd.Flags(), &config.TemplatesVariable)
-	cmd.Flags().StringArrayVar(&config.FilterTemplates, "template", nil, "filter by template name (can specify multiple times)")
+	cmd.Flags().StringArrayVar(&patterns, "match", nil, "filter by template name (can specify multiple regular expressions)")
 
 	return cmd
 }