Deleted combined entries while iterating over the list

This doesn't work because of mikefarah/yq#2027

Signed-off-by: Jan Dubois <jan.dubois@suse.com>

pkg/limatmpl/assemble.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"slices"
 	"strings"
 
 	"github.com/coreos/go-semver/semver"
@@ -266,6 +267,10 @@ func (tmpl *Template) copyListEntryComments(list string, dstIdx, srcIdx int, fie
 	tmpl.copyComments(dst, src, isMapElement)
 }
 
+func (tmpl *Template) deleteListEntry(list string, idx int) {
+	tmpl.expr.WriteString(fmt.Sprintf("| del($a.%s[%d], $b.%s[%d])\n", list, idx, list, idx))
+}
+
 // TODO: Maybe instead of hard-coding all the yaml names of LimaYAML struct fields we should
 // TODO: retrieve them using reflection from the Go type tags to avoid possible typos.
 
@@ -291,10 +296,10 @@ func (tmpl *Template) combineListEntries() error {
 // combineAdditionalDisks merges the additionalDisks lists. The shared key is the disk name.
 func (tmpl *Template) combineAdditionalDisks() {
 	const additionalDisks = "additionalDisks"
-	var deleteExpr string
 
 	diskIdx := make(map[string]int, len(tmpl.Config.AdditionalDisks))
-	for src, disk := range tmpl.Config.AdditionalDisks {
+	for src := 0; src < len(tmpl.Config.AdditionalDisks); {
+		disk := tmpl.Config.AdditionalDisks[src]
 		var from, to int
 		if disk.Name == "*" {
 			// copy to **all** previous entries
@@ -307,6 +312,7 @@ func (tmpl *Template) combineAdditionalDisks() {
 				to = i
 			} else {
 				diskIdx[disk.Name] = src
+				src += 1
 				continue
 			}
 		}
@@ -330,18 +336,18 @@ func (tmpl *Template) combineAdditionalDisks() {
 				tmpl.copyListEntryComments(additionalDisks, dst, src, "")
 			}
 		}
-		deleteExpr = fmt.Sprintf("| del($a.%s[%d])", additionalDisks, src) + deleteExpr
+		tmpl.Config.AdditionalDisks = slices.Delete(tmpl.Config.AdditionalDisks, src, src+1)
+		tmpl.deleteListEntry(additionalDisks, src)
 	}
-	tmpl.expr.WriteString(deleteExpr)
 }
 
 // combineMounts merges the mounts lists. The shared key is the mount point.
 func (tmpl *Template) combineMounts() {
 	const mounts = "mounts"
-	var deleteExpr string
 
 	mountPointIdx := make(map[string]int, len(tmpl.Config.Mounts))
-	for src, mount := range tmpl.Config.Mounts {
+	for src := 0; src < len(tmpl.Config.Mounts); {
+		mount := tmpl.Config.Mounts[src]
 		mountPoint := mount.Location
 		if mount.MountPoint != nil {
 			mountPoint = *mount.MountPoint
@@ -356,6 +362,7 @@ func (tmpl *Template) combineMounts() {
 				to = i
 			} else {
 				mountPointIdx[mountPoint] = src
+				src += 1
 				continue
 			}
 		}
@@ -413,18 +420,19 @@ func (tmpl *Template) combineMounts() {
 				tmpl.copyListEntryComments(mounts, dst, src, "virtiofs")
 			}
 		}
-		deleteExpr = fmt.Sprintf("| del($a.%s[%d])", mounts, src) + deleteExpr
+		tmpl.Config.Mounts = slices.Delete(tmpl.Config.Mounts, src, src+1)
+		tmpl.deleteListEntry(mounts, src)
 	}
-	tmpl.expr.WriteString(deleteExpr)
 }
 
 // combineNetworks merges the mounts lists. The shared key is the interface name.
 func (tmpl *Template) combineNetworks() {
 	const networks = "networks"
-	var deleteExpr string
 
 	interfaceIdx := make(map[string]int, len(tmpl.Config.Networks))
-	for src, nw := range tmpl.Config.Networks {
+	for src := 0; src < len(tmpl.Config.Networks); {
+		nw := tmpl.Config.Networks[src]
+		logrus.Infof("Processing network[%d] %q", src, nw.Interface)
 		var from, to int
 		if nw.Interface == "*" {
 			from = 0
@@ -437,11 +445,13 @@ func (tmpl *Template) combineNetworks() {
 				if nw.Interface != "" {
 					interfaceIdx[nw.Interface] = src
 				}
+				src += 1
 				continue
 			}
 		}
 		for dst := from; dst <= to; dst++ {
 			dest := &tmpl.Config.Networks[dst]
+			logrus.Infof("Merging network[%d] %q into network[%d] %q", src, nw.Interface, dst, dest.Interface)
 			// Lima and Socket are mutually exclusive. Only copy base values if both are still unset.
 			if dest.Lima == "" && dest.Socket == "" {
 				if nw.Lima != "" {
@@ -469,9 +479,10 @@ func (tmpl *Template) combineNetworks() {
 				tmpl.copyListEntryComments(networks, dst, src, "")
 			}
 		}
-		deleteExpr = fmt.Sprintf("| del($a.%s[%d])", networks, src) + deleteExpr
+		logrus.Infof("Deleting interface %d", src)
+		tmpl.Config.Networks = slices.Delete(tmpl.Config.Networks, src, src+1)
+		tmpl.deleteListEntry(networks, src)
 	}
-	tmpl.expr.WriteString(deleteExpr)
 }
 
 // updateScript replaces one "file" property with the actual script and then renames the field to "script".