From: Simon Ruderich <simon.ruderich@fau.de>
Date: Tue, 20 Jan 2026 19:11:51 +0000 (+0100)
Subject: config: add .GroupHosts to templates
X-Git-Url: https://ruderich.org/simon/gitweb/?a=commitdiff_plain;h=baafb6e5365d6260a40c56a935ad814e723e4716;p=safcm%2Fsafcm.git

config: add .GroupHosts to templates

Permits iterating over all hosts of a given group.
---

diff --git a/cmd/safcm/config/templates.go b/cmd/safcm/config/templates.go
index 059d89b..dbc8cdf 100644
--- a/cmd/safcm/config/templates.go
+++ b/cmd/safcm/config/templates.go
@@ -10,6 +10,7 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"slices"
 	"strings"
 	"text/template"
 
@@ -73,6 +74,7 @@ func LoadTemplates(group string, files map[string]*safcm.File,
 			groups:    groupsMap,
 			allHosts:  allHostsMap,
 			allGroups: allGroupsMap,
+			allGroupHosts: allGroups,
 		})
 		if err != nil {
 			return fmt.Errorf("%s: %v", path, err)
@@ -90,6 +92,7 @@ type templateArgs struct {
 	groups    map[string]bool
 	allHosts  map[string]bool
 	allGroups map[string]bool
+	allGroupHosts map[string][]string
 }
 
 // TODO: extend data passed to template
@@ -102,6 +105,18 @@ func (t *templateArgs) IsHost(host string) bool {
 	return t.Host == host
 }
 func (t *templateArgs) InGroup(group string) bool {
+	t.groupMustExist(group)
+	return t.groups[group]
+}
+
+func (t *templateArgs) GroupHosts(group string) []string {
+	t.groupMustExist(group)
+	x := t.allGroupHosts[group]
+	slices.Sort(x)
+	return x
+}
+
+func (t *templateArgs) groupMustExist(group string) {
 	// Don't permit invalid groups to detect typos; detected groups cannot be
 	// checked
 	if group != GroupAll &&
@@ -110,7 +125,6 @@ func (t *templateArgs) InGroup(group string) bool {
 		!strings.HasPrefix(group, GroupDetectedPrefix) {
 		panic(fmt.Sprintf("group %q does not exist", group))
 	}
-	return t.groups[group]
 }
 
 // vi: set noet ts=4 sw=4 sts=4: