final fixes

Let's have the opposite, and have an example so you don't forget which
is which.

.gitignore

@@ -15,6 +15,7 @@ tmp/
 mgmt.iml
 /rpmbuild/
 /releases/
+/repository/
 /pprof/
 /sites/
 # vim swap files

README.md

@@ -6,7 +6,6 @@
 [![Build Status](https://github.com/purpleidea/mgmt/workflows/.github/workflows/test.yaml/badge.svg)](https://github.com/purpleidea/mgmt/actions/)
 [![GoDoc](https://img.shields.io/badge/godoc-reference-5272B4.svg?style=flat-square)](https://godocs.io/github.com/purpleidea/mgmt)
 [![Matrix](https://img.shields.io/badge/matrix-%23mgmtconfig-orange.svg?style=flat-square)](https://matrix.to/#/#mgmtconfig:matrix.org)
-[![IRC](https://img.shields.io/badge/irc-%23mgmtconfig-orange.svg?style=flat-square)](https://web.libera.chat/?channels=#mgmtconfig)
 [![Patreon](https://img.shields.io/badge/patreon-donate-yellow.svg?style=flat-square)](https://www.patreon.com/purpleidea)
 [![Liberapay](https://img.shields.io/badge/liberapay-donate-yellow.svg?style=flat-square)](https://liberapay.com/purpleidea/donate)
 
@@ -73,7 +72,6 @@ Come join us in the `mgmt` community!
 | Medium | Link |
 |---|---|
 | Matrix | [#mgmtconfig](https://matrix.to/#/#mgmtconfig:matrix.org) on Matrix.org |
-| IRC | [#mgmtconfig](https://web.libera.chat/?channels=#mgmtconfig) on Libera.Chat |
 | Twitter | [@mgmtconfig](https://twitter.com/mgmtconfig) & [#mgmtconfig](https://twitter.com/hashtag/mgmtconfig) |
 | Mailing list | [looking for a new home, suggestions welcome](https://gitlab.freedesktop.org/freedesktop/freedesktop/-/issues/1082) |
 | Patreon | [purpleidea](https://www.patreon.com/purpleidea) on Patreon |

docs/faq.md

@@ -53,16 +53,13 @@ find a number of tutorials online.
 3. Spend between four to six hours with the [golang tour](https://tour.golang.org/).
 Skip over the longer problems, but try and get a solid overview of everything.
 If you forget something, you can always go back and repeat those parts.
-4. Connect to our [#mgmtconfig](https://web.libera.chat/?channels=#mgmtconfig)
+4. Connect to our [#mgmtconfig](https://matrix.to/#/#mgmtconfig:matrix.org)
-IRC channel on the [Libera.Chat](https://libera.chat/) network. You can use any
+Matrix channel and hang out with us there out there.
-IRC client that you'd like, but the [hosted web portal](https://web.libera.chat/?channels=#mgmtconfig)
-will suffice if you don't know what else to use. [Here are a few suggestions for
-alternative clients.](https://libera.chat/guides/clients)
 5. Now it's time to try and starting writing a patch! We have tagged a bunch of
 [open issues as #mgmtlove](https://github.com/purpleidea/mgmt/issues?q=is%3Aissue+is%3Aopen+label%3Amgmtlove)
 for new users to have somewhere to get involved. Look through them to see if
 something interests you. If you find one, let us know you're working on it by
-leaving a comment in the ticket. We'll be around to answer questions in the IRC
+leaving a comment in the ticket. We'll be around to answer questions in the
 channel, and to create new issues if there wasn't something that fit your
 interests. When you submit a patch, we'll review it and give you some feedback.
 Over time, we hope you'll learn a lot while supporting the project! Now get
@@ -534,9 +531,7 @@ which definitely existed before the band did.
 
 ### You didn't answer my question, or I have a question!
 
-It's best to ask on [IRC](https://web.libera.chat/?channels=#mgmtconfig)
+It's best to ask on [Matrix](https://matrix.to/#/#mgmtconfig:matrix.org) to see
-to see if someone can help you. If you don't get a response from IRC, you can
+if someone can help. If you don't get a response there, you can send a patch to
-contact me through my [technical blog](https://purpleidea.com/contact/) and I'll
-do my best to help. If you have a good question, please add it as a patch to
 this documentation. I'll merge your question, and add a patch with the answer!
 For news and updates, subscribe to the [mailing list](https://www.redhat.com/mailman/listinfo/mgmtconfig-list).

engine/resources/cloudflare_dns.go

@@ -0,0 +1,702 @@
+// Mgmt
+// Copyright (C) James Shubin and the project contributors
+// Written by James Shubin <james@shubin.ca> and the project contributors
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+//
+// Additional permission under GNU GPL version 3 section 7
+//
+// If you modify this program, or any covered work, by linking or combining it
+// with embedded mcl code and modules (and that the embedded mcl code and
+// modules which link with this program, contain a copy of their source code in
+// the authoritative form) containing parts covered by the terms of any other
+// license, the licensors of this program grant you additional permission to
+// convey the resulting work. Furthermore, the licensors of this program grant
+// the original author, James Shubin, additional permission to update this
+// additional permission if he deems it necessary to achieve the goals of this
+// additional permission.
+
+package resources
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/purpleidea/mgmt/engine"
+	"github.com/purpleidea/mgmt/engine/traits"
+	"github.com/purpleidea/mgmt/util/errwrap"
+
+	"github.com/cloudflare/cloudflare-go/v6"
+	"github.com/cloudflare/cloudflare-go/v6/dns"
+	"github.com/cloudflare/cloudflare-go/v6/option"
+	"github.com/cloudflare/cloudflare-go/v6/zones"
+)
+
+func init() {
+	engine.RegisterResource("cloudflare:dns", func() engine.Res { return &CloudflareDNSRes{} })
+}
+
+// CloudflareDNSRes is a resource for managing DNS records in Cloudflare zones.
+// This resource uses the Cloudflare API to create, update, and delete DNS
+// records in a specified zone. It supports various record types including A,
+// AAAA, CNAME, MX, TXT, NS, SRV, and PTR records. The resource requires polling
+// to detect changes, as the Cloudflare API does not provide an event stream.
+// The Purge functionality allows enforcing that only managed DNS records exist
+// in the zone, removing any unmanaged records.
+type CloudflareDNSRes struct {
+	traits.Base
+	traits.GraphQueryable
+	init *engine.Init
+
+	// APIToken is the Cloudflare API token used for authentication. This is
+	// required and must have the necessary permissions to manage DNS records
+	// in the specified zone.
+	APIToken string `lang:"apitoken"`
+
+	// Comment is an optional comment to attach to the DNS record. This is
+	// stored in Cloudflare and can be used for documentation purposes.
+	Comment string `lang:"comment"`
+
+	// Content is the value for the DNS record. This is required when State
+	// is "exists" unless Purge is true. The format depends on the record
+	// Type (e.g., IP address for A records, hostname for CNAME records).
+	Content string `lang:"content"`
+
+	// Priority is the priority value for records that support it (e.g., MX
+	// records). This is a pointer to distinguish between an unset value and
+	// a zero value.
+	Priority *float64 `lang:"priority"`
+
+	// Proxied specifies whether the record should be proxied through
+	// Cloudflare's CDN. This is a pointer to distinguish between an unset
+	// value and false. Only applicable to certain record types.
+	Proxied *bool `lang:"proxied"`
+
+	// Purge specifies whether to delete all DNS records in the zone that are
+	// not defined in the mgmt graph. When true, this resource will query the
+	// graph for other cloudflare:dns resources in the same zone and delete
+	// any records not managed by those resources.
+	Purge bool `lang:"purge"`
+
+	// RecordName is the name of the DNS record (e.g., "www.example.com" or
+	// "@" for the zone apex). This is required.
+	RecordName string `lang:"record_name"`
+
+	// State determines whether the DNS record should exist or be absent.
+	// Valid values are "exists" (default) or "absent". When set to "absent",
+	// the record will be deleted if it exists.
+	State string `lang:"state"`
+
+	// TTL is the time-to-live value for the DNS record in seconds. Must be
+	// between 60 and 86400, or set to 1 for automatic TTL. Default is 1.
+	TTL int64 `lang:"ttl"`
+
+	// Type is the DNS record type (e.g., "A", "AAAA", "CNAME", "MX", "TXT",
+	// "NS", "SRV", "PTR"). This is required.
+	Type string `lang:"type"`
+
+	// Zone is the name of the Cloudflare zone (domain) where the DNS record
+	// should be managed (e.g., "example.com"). This is required.
+	Zone string `lang:"zone"`
+
+	client *cloudflare.Client
+	zoneID string
+}
+
+// Default returns some sensible defaults for this resource.
+func (obj *CloudflareDNSRes) Default() engine.Res {
+	return &CloudflareDNSRes{
+		State: "exists",
+		TTL:   1, // this sets TTL to automatic
+	}
+}
+
+// Validate checks if the resource data structure was populated correctly.
+func (obj *CloudflareDNSRes) Validate() error {
+	if obj.RecordName == "" {
+		return fmt.Errorf("record name is required")
+	}
+
+	if obj.APIToken == "" {
+		return fmt.Errorf("API token is required")
+	}
+
+	if obj.Type == "" {
+		return fmt.Errorf("record type is required")
+	}
+
+	if (obj.TTL < 60 || obj.TTL > 86400) && obj.TTL != 1 { // API requirement
+		return fmt.Errorf("TTL must be between 60s and 86400s, or set to 1")
+	}
+
+	if obj.Zone == "" {
+		return fmt.Errorf("zone name is required")
+	}
+
+	if obj.State != "exists" && obj.State != "absent" && obj.State != "" {
+		return fmt.Errorf("state must be either 'exists', 'absent', or empty")
+	}
+
+	if obj.State == "exists" && obj.Content == "" && !obj.Purge {
+		return fmt.Errorf("content is required when state is 'exists'")
+	}
+
+	if obj.Type == "MX" && obj.Priority == nil {
+		return fmt.Errorf("priority is required for MX records")
+	}
+
+	// cloudflare accepts ~4req/s so this is safe enough even when managing lots
+	// of records
+	if obj.MetaParams().Poll == 0 || obj.MetaParams().Poll < 60 {
+		return fmt.Errorf("cloudflare:dns requires polling, set Meta:poll param (e.g., 300s), min. 60s")
+	}
+
+	return nil
+}
+
+// Init runs some startup code for this resource. It initializes the Cloudflare
+// API client and validates that the specified zone exists.
+func (obj *CloudflareDNSRes) Init(init *engine.Init) error {
+	obj.init = init
+
+	obj.client = cloudflare.NewClient(
+		option.WithAPIToken(obj.APIToken),
+	)
+
+	zoneListParams := zones.ZoneListParams{
+		Name: cloudflare.F(obj.Zone),
+	}
+
+	zoneList, err := obj.client.Zones.List(context.Background(), zoneListParams)
+	if err != nil {
+		return errwrap.Wrapf(err, "failed to list zones")
+	}
+
+	if len(zoneList.Result) == 0 {
+		return fmt.Errorf("zone %s not found", obj.Zone)
+	}
+
+	obj.zoneID = zoneList.Result[0].ID
+
+	return nil
+}
+
+// Cleanup is run by the engine to clean up after the resource is done. It
+// clears sensitive data and releases the API client connection.
+func (obj *CloudflareDNSRes) Cleanup() error {
+	obj.APIToken = ""
+	obj.client = nil
+	obj.zoneID = ""
+	return nil
+}
+
+// Watch isn't implemented for this resource, since the Cloudflare API does not
+// provide any event stream. Instead, always use polling.
+func (obj *CloudflareDNSRes) Watch(context.Context) error {
+	return fmt.Errorf("invalid Watch call: requires poll metaparam")
+}
+
+// CheckApply is the main convergence function for this resource. It checks the
+// current state of the DNS record against the desired state and applies changes
+// if necessary. If apply is false, it only checks if changes are needed. If
+// Purge is enabled, it will first delete any unmanaged records in the zone.
+func (obj *CloudflareDNSRes) CheckApply(ctx context.Context, apply bool) (bool, error) {
+	// We start by checking the need for purging
+	if obj.Purge {
+		checkOK, err := obj.purgeCheckApply(ctx, apply)
+		if err != nil {
+			return false, err
+		}
+		if !checkOK {
+			return false, nil
+		}
+	}
+
+	// we're using `contains` so as to get the candidates, as `exact` might not
+	// give the expected results depending on how the user specified it.
+	listParams := dns.RecordListParams{
+		ZoneID: cloudflare.F(obj.zoneID),
+		Name: cloudflare.F(dns.RecordListParamsName{
+			Contains: cloudflare.F(obj.RecordName),
+		}),
+		Type: cloudflare.F(dns.RecordListParamsType(obj.Type)),
+	}
+
+	recordList, err := obj.client.DNS.Records.List(ctx, listParams)
+	if err != nil {
+		return false, errwrap.Wrapf(err, "failed to list DNS records")
+	}
+
+	// here we filter to find the exact match
+	recordExists := false
+	var record dns.RecordResponse
+	for _, r := range recordList.Result {
+		if obj.matchesRecordName(r.Name) {
+			record = r
+			recordExists = true
+			break
+		}
+	}
+
+	switch obj.State {
+	case "exists", "":
+		if !recordExists {
+			if !apply {
+				return false, nil
+			}
+
+			if err := obj.createRecord(ctx); err != nil {
+				return false, err
+			}
+
+			return true, nil
+		}
+
+		if obj.needsUpdate(record) {
+			if !apply {
+				return false, nil
+			}
+
+			if err := obj.updateRecord(ctx, record.ID); err != nil {
+				return false, err
+			}
+			return true, nil
+		}
+
+	case "absent":
+		if recordExists {
+			if !apply {
+				return false, nil
+			}
+
+			deleteParams := dns.RecordDeleteParams{
+				ZoneID: cloudflare.F(obj.zoneID),
+			}
+
+			_, err := obj.client.DNS.Records.Delete(ctx, record.ID, deleteParams)
+			if err != nil {
+				return false, errwrap.Wrapf(err, "failed to delete DNS record")
+			}
+			return true, nil
+		}
+	}
+
+	return true, nil
+}
+
+// Cmp compares two resources and returns an error if they differ. This is used
+// to determine if two resources are equivalent for graph operations.
+func (obj *CloudflareDNSRes) Cmp(r engine.Res) error {
+	if obj == nil && r == nil {
+		return nil
+	}
+
+	if (obj == nil) != (r == nil) {
+		return fmt.Errorf("one resource is empty")
+	}
+
+	res, ok := r.(*CloudflareDNSRes)
+	if !ok {
+		return fmt.Errorf("not a %s", obj.Kind())
+	}
+
+	if obj.APIToken != res.APIToken {
+		return fmt.Errorf("apitoken differs")
+	}
+
+	if (obj.Proxied == nil) != (res.Proxied == nil) {
+		return fmt.Errorf("proxied values differ")
+	}
+
+	if obj.Proxied != nil && *obj.Proxied != *res.Proxied {
+		return fmt.Errorf("proxied values differ")
+	}
+
+	if obj.RecordName != res.RecordName {
+		return fmt.Errorf("record name differs")
+	}
+
+	if obj.Purge != res.Purge {
+		return fmt.Errorf("purge value differs")
+	}
+
+	if obj.State != res.State {
+		return fmt.Errorf("state differs")
+	}
+
+	if obj.TTL != res.TTL {
+		return fmt.Errorf("ttl differs")
+	}
+
+	if obj.Type != res.Type {
+		return fmt.Errorf("record type differs")
+	}
+
+	if obj.Zone != res.Zone {
+		return fmt.Errorf("zone differs")
+	}
+
+	if obj.zoneID != res.zoneID {
+		return fmt.Errorf("zoneid differs")
+	}
+
+	if obj.Content != res.Content {
+		return fmt.Errorf("content param differs")
+	}
+
+	if (obj.Priority == nil) != (res.Priority == nil) {
+		return fmt.Errorf("the priority param differs")
+	}
+
+	if obj.Priority != nil && *obj.Priority != *res.Priority {
+		return fmt.Errorf("the priority param differs")
+	}
+
+	return nil
+}
+
+// buildRecordParam creates the appropriate record parameter structure based on
+// the record type. This is a helper function used by buildNewRecordParam and
+// buildEditRecordParam.
+// TODO: double check the fields for each record, might have missed some
+func (obj *CloudflareDNSRes) buildRecordParam() (any, error) {
+	ttl := dns.TTL(obj.TTL)
+
+	switch obj.Type {
+	case "A":
+		param := dns.ARecordParam{
+			Name:    cloudflare.F(obj.RecordName),
+			Type:    cloudflare.F(dns.ARecordTypeA),
+			Content: cloudflare.F(obj.Content),
+			TTL:     cloudflare.F(ttl),
+		}
+		if obj.Proxied != nil {
+			param.Proxied = cloudflare.F(*obj.Proxied)
+		}
+		if obj.Comment != "" {
+			param.Comment = cloudflare.F(obj.Comment)
+		}
+		return param, nil
+
+	case "AAAA":
+		param := dns.AAAARecordParam{
+			Name:    cloudflare.F(obj.RecordName),
+			Type:    cloudflare.F(dns.AAAARecordTypeAAAA),
+			Content: cloudflare.F(obj.Content),
+			TTL:     cloudflare.F(ttl),
+		}
+		if obj.Proxied != nil {
+			param.Proxied = cloudflare.F(*obj.Proxied)
+		}
+		if obj.Comment != "" {
+			param.Comment = cloudflare.F(obj.Comment)
+		}
+		return param, nil
+
+	case "CNAME":
+		param := dns.CNAMERecordParam{
+			Name:    cloudflare.F(obj.RecordName),
+			Type:    cloudflare.F(dns.CNAMERecordTypeCNAME),
+			Content: cloudflare.F(obj.Content),
+			TTL:     cloudflare.F(ttl),
+		}
+		if obj.Proxied != nil {
+			param.Proxied = cloudflare.F(*obj.Proxied)
+		}
+		if obj.Comment != "" {
+			param.Comment = cloudflare.F(obj.Comment)
+		}
+		return param, nil
+
+	case "MX":
+		param := dns.MXRecordParam{
+			Name:    cloudflare.F(obj.RecordName),
+			Type:    cloudflare.F(dns.MXRecordTypeMX),
+			Content: cloudflare.F(obj.Content),
+			TTL:     cloudflare.F(ttl),
+		}
+		if obj.Proxied != nil {
+			param.Proxied = cloudflare.F(*obj.Proxied)
+		}
+		if obj.Priority != nil { // required for MX record
+			param.Priority = cloudflare.F(*obj.Priority)
+		}
+		if obj.Comment != "" {
+			param.Comment = cloudflare.F(obj.Comment)
+		}
+		return param, nil
+
+	case "TXT":
+		param := dns.TXTRecordParam{
+			Name:    cloudflare.F(obj.RecordName),
+			Type:    cloudflare.F(dns.TXTRecordTypeTXT),
+			Content: cloudflare.F(obj.Content),
+			TTL:     cloudflare.F(ttl),
+		}
+		if obj.Proxied != nil {
+			param.Proxied = cloudflare.F(*obj.Proxied)
+		}
+		if obj.Comment != "" {
+			param.Comment = cloudflare.F(obj.Comment)
+		}
+		return param, nil
+
+	case "NS":
+		param := dns.NSRecordParam{
+			Name:    cloudflare.F(obj.RecordName),
+			Type:    cloudflare.F(dns.NSRecordTypeNS),
+			Content: cloudflare.F(obj.Content),
+			TTL:     cloudflare.F(ttl),
+		}
+		if obj.Proxied != nil {
+			param.Proxied = cloudflare.F(*obj.Proxied)
+		}
+		if obj.Comment != "" {
+			param.Comment = cloudflare.F(obj.Comment)
+		}
+		return param, nil
+
+	case "PTR":
+		param := dns.PTRRecordParam{
+			Name:    cloudflare.F(obj.RecordName),
+			Type:    cloudflare.F(dns.PTRRecordTypePTR),
+			Content: cloudflare.F(obj.Content),
+			TTL:     cloudflare.F(ttl),
+		}
+		if obj.Proxied != nil {
+			param.Proxied = cloudflare.F(*obj.Proxied)
+		}
+		if obj.Comment != "" {
+			param.Comment = cloudflare.F(obj.Comment)
+		}
+		return param, nil
+
+	default:
+		return nil, fmt.Errorf("record type %s is not supported", obj.Type)
+
+	}
+}
+
+// buildNewRecordParam creates the appropriate record parameter for creating new
+// records.
+func (obj *CloudflareDNSRes) buildNewRecordParam() (dns.RecordNewParamsBodyUnion, error) {
+	result, err := obj.buildRecordParam()
+	if err != nil {
+		return nil, err
+	}
+	return result.(dns.RecordNewParamsBodyUnion), nil
+}
+
+// buildEditRecordParam creates the appropriate record parameter for editing
+// records.
+func (obj *CloudflareDNSRes) buildEditRecordParam() (dns.RecordEditParamsBodyUnion, error) {
+	result, err := obj.buildRecordParam()
+	if err != nil {
+		return nil, err
+	}
+	return result.(dns.RecordEditParamsBodyUnion), nil
+}
+
+// createRecord creates a new DNS record in Cloudflare using the resource's
+// parameters.
+func (obj *CloudflareDNSRes) createRecord(ctx context.Context) error {
+	recordParams, err := obj.buildNewRecordParam()
+	if err != nil {
+		return err
+	}
+
+	createParams := dns.RecordNewParams{
+		ZoneID: cloudflare.F(obj.zoneID),
+		Body:   recordParams,
+	}
+
+	_, err = obj.client.DNS.Records.New(ctx, createParams)
+	if err != nil {
+		return errwrap.Wrapf(err, "failed to create dns record")
+	}
+
+	return nil
+}
+
+// updateRecord updates an existing DNS record in Cloudflare with the resource's
+// parameters.
+func (obj *CloudflareDNSRes) updateRecord(ctx context.Context, recordID string) error {
+	recordParams, err := obj.buildEditRecordParam()
+	if err != nil {
+		return err
+	}
+
+	editParams := dns.RecordEditParams{
+		ZoneID: cloudflare.F(obj.zoneID),
+		Body:   recordParams,
+	}
+
+	_, err = obj.client.DNS.Records.Edit(ctx, recordID, editParams)
+	if err != nil {
+		return errwrap.Wrapf(err, "failed to update dns record")
+	}
+
+	return nil
+}
+
+// needsUpdate compares the current DNS record with the desired state and
+// returns true if an update is needed.
+func (obj *CloudflareDNSRes) needsUpdate(record dns.RecordResponse) bool {
+	if obj.Content != record.Content {
+		return true
+	}
+
+	if obj.TTL != int64(record.TTL) {
+		return true
+	}
+
+	if obj.Proxied != nil {
+		if *obj.Proxied != record.Proxied {
+			return true
+		}
+	}
+
+	if obj.Priority != nil {
+		if *obj.Priority != record.Priority {
+			return true
+		}
+	}
+
+	if obj.Comment != "" && obj.Comment != record.Comment {
+		return true
+	}
+
+	// TODO add more checks?
+
+	return false
+
+}
+
+// purgeCheckApply deletes all DNS records in the zone that are not defined in
+// the mgmt graph. It queries the graph for other cloudflare:dns resources in
+// the same zone and builds an exclusion list. If apply is false, it only checks
+// if purge is needed.
+func (obj *CloudflareDNSRes) purgeCheckApply(ctx context.Context, apply bool) (bool, error) {
+	listParams := dns.RecordListParams{
+		ZoneID: cloudflare.F(obj.zoneID),
+	}
+
+	iter := obj.client.DNS.Records.ListAutoPaging(ctx, listParams)
+
+	allRecords := []dns.RecordResponse{}
+	for iter.Next() {
+		allRecords = append(allRecords, iter.Current())
+	}
+	if err := iter.Err(); err != nil {
+		return false, errwrap.Wrapf(err, "failed to list dns records for purge")
+	}
+
+	excludes := make(map[string]bool)
+
+	graph, err := obj.init.FilteredGraph()
+	if err != nil {
+		return false, errwrap.Wrapf(err, "can't read the filtered graph")
+	}
+
+	for _, vertex := range graph.Vertices() {
+		res, ok := vertex.(engine.Res)
+		if !ok {
+			return false, fmt.Errorf("not a resource")
+		}
+		if res.Kind() != "cloudflare:dns" {
+			continue // we only want cloudflare dns resources
+		}
+		if res.Name() == obj.Name() {
+			continue // skip self
+		}
+
+		cfRes, ok := res.(*CloudflareDNSRes)
+		if !ok {
+			return false, fmt.Errorf("wrong resource type")
+		}
+
+		if cfRes.Zone == obj.Zone {
+			recordKey := fmt.Sprintf("%s:%s:%s", cfRes.RecordName, cfRes.Type,
+				cfRes.Content)
+			if cfRes.Priority != nil {
+				// corner case for MX records which require priority set
+				recordKey = fmt.Sprintf("%s:%d", recordKey, *cfRes.Priority)
+			}
+			excludes[recordKey] = true
+		}
+	}
+
+	checkOK := true
+
+	for _, record := range allRecords {
+		recordKey := fmt.Sprintf("%s:%s:%s", record.Name, record.Type,
+			record.Content)
+		if record.Priority != 0 {
+			recordKey = fmt.Sprintf("%s:%d", recordKey, record.Priority)
+		}
+
+		if excludes[recordKey] {
+			continue
+		}
+
+		if apply {
+			deleteParams := dns.RecordDeleteParams{
+				ZoneID: cloudflare.F(obj.zoneID),
+			}
+			_, err := obj.client.DNS.Records.Delete(ctx, record.ID, deleteParams)
+			if err != nil {
+				return false, errwrap.Wrapf(err, "failed to purge %s", recordKey)
+			}
+		} else {
+			checkOK = false
+		}
+	}
+
+	return checkOK, nil
+}
+
+// GraphQueryAllowed returns nil if you're allowed to query the graph. This
+// function accepts information about the requesting resource so we can
+// determine the access with some form of fine-grained control.
+func (obj *CloudflareDNSRes) GraphQueryAllowed(opts ...engine.GraphQueryableOption) error {
+	options := &engine.GraphQueryableOptions{} // default options
+	options.Apply(opts...)                     // apply the options
+	if options.Kind != "cloudflare:dns" {
+		return fmt.Errorf("only other cloudflare dns resources can access this info")
+	}
+	return nil
+}
+
+// matchesRecordName checks if a record name from the API matches our desired record name.
+// Handles both FQDN (www.example.com) and short form (www) comparisons.
+func (obj *CloudflareDNSRes) matchesRecordName(apiRecordName string) bool {
+	desired := obj.normalizeRecordName(obj.RecordName)
+	actual := obj.normalizeRecordName(apiRecordName)
+	return desired == actual
+}
+
+// normalizeRecordName converts a record name to a consistent format for comparison.
+// Converts to FQDN format (e.g., "www" -> "www.example.com", "@" -> "example.com")
+func (obj *CloudflareDNSRes) normalizeRecordName(name string) string {
+	if name == "@" || name == obj.Zone {
+		return obj.Zone
+	}
+
+	if strings.HasSuffix(name, "."+obj.Zone) || name == obj.Zone {
+		return name
+	}
+
+	return name + "." + obj.Zone
+}

engine/resources/exec.go

@@ -127,9 +127,9 @@ type ExecRes struct {
 	WatchShell string `lang:"watchshell" yaml:"watchshell"`
 
 	// IfCmd is the command that runs to guard against running the Cmd. If
-	// this command succeeds, then Cmd *will* be run. If this command
+	// this command succeeds, then Cmd *will not* be blocked from running.
-	// returns a non-zero result, then the Cmd will not be run. Any error
+	// If this command returns a non-zero result, then the Cmd will not be
-	// scenario or timeout will cause the resource to error.
+	// run. Any error scenario or timeout will cause the resource to error.
 	IfCmd string `lang:"ifcmd" yaml:"ifcmd"`
 
 	// IfCwd is the Cwd for the IfCmd. See the docs for Cwd.
@@ -145,6 +145,19 @@ type ExecRes struct {
 	// does!)
 	IfEquals *string `lang:"ifequals" yaml:"ifequals"`
 
+	// NIfCmd is the command that runs to guard against running the Cmd. If
+	// this command succeeds, then Cmd *will* be blocked from running. If
+	// this command returns a non-zero result, then the Cmd will be allowed
+	// to run if not blocked by anything else. This is the opposite of the
+	// IfCmd.
+	NIfCmd string `lang:"nifcmd" yaml:"nifcmd"`
+
+	// NIfCwd is the Cwd for the NIfCmd. See the docs for Cwd.
+	NIfCwd string `lang:"nifcwd" yaml:"nifcwd"`
+
+	// NIfShell is the Shell for the NIfCmd. See the docs for Shell.
+	NIfShell string `lang:"nifshell" yaml:"nifshell"`
+
 	// Creates is the absolute file path to check for before running the
 	// main cmd. If this path exists, then the cmd will not run. More
 	// precisely we attempt to `stat` the file, so it must succeed for a
@@ -469,7 +482,7 @@ func (obj *ExecRes) CheckApply(ctx context.Context, apply bool) (bool, error) {
 			cmdName = obj.IfShell // usually bash, or sh
 			cmdArgs = []string{"-c", obj.IfCmd}
 		}
-		cmd := exec.Command(cmdName, cmdArgs...)
+		cmd := exec.CommandContext(ctx, cmdName, cmdArgs...)
 		cmd.Dir = obj.IfCwd // run program in pwd if ""
 		// ignore signals sent to parent process (we're in our own group)
 		cmd.SysProcAttr = &syscall.SysProcAttr{
@@ -535,6 +548,93 @@ func (obj *ExecRes) CheckApply(ctx context.Context, apply bool) (bool, error) {
 		}
 	}
 
+	if obj.NIfCmd != "" { // opposite of the ifcmd check
+		var cmdName string
+		var cmdArgs []string
+		if obj.NIfShell == "" {
+			// call without a shell
+			// FIXME: are there still whitespace splitting issues?
+			split := strings.Fields(obj.NIfCmd)
+			cmdName = split[0]
+			//d, _ := os.Getwd() // TODO: how does this ever error ?
+			//cmdName = path.Join(d, cmdName)
+			cmdArgs = split[1:]
+		} else {
+			cmdName = obj.NIfShell // usually bash, or sh
+			cmdArgs = []string{"-c", obj.NIfCmd}
+		}
+		cmd := exec.CommandContext(ctx, cmdName, cmdArgs...)
+		cmd.Dir = obj.NIfCwd // run program in pwd if ""
+		// ignore signals sent to parent process (we're in our own group)
+		cmd.SysProcAttr = &syscall.SysProcAttr{
+			Setpgid: true,
+			Pgid:    0,
+		}
+
+		// if we have an user and group, use them
+		var err error
+		if cmd.SysProcAttr.Credential, err = obj.getCredential(); err != nil {
+			return false, errwrap.Wrapf(err, "error while setting credential")
+		}
+
+		var out splitWriter
+		out.Init()
+		cmd.Stdout = out.Stdout
+		cmd.Stderr = out.Stderr
+
+		err = cmd.Run()
+		if err == nil {
+			obj.init.Logf("nifcmd: %s", strings.Join(cmd.Args, " "))
+			obj.init.Logf("nifcmd exited with: %d, skipping cmd", 0)
+			s := out.String()
+			if s == "" {
+				obj.init.Logf("nifcmd out empty!")
+			} else {
+				obj.init.Logf("nifcmd out:")
+				obj.init.Logf("%s", s)
+			}
+
+			//if err := obj.checkApplyWriteCache(); err != nil {
+			//	return false, err
+			//}
+			obj.safety()
+			if err := obj.send(); err != nil {
+				return false, err
+			}
+			return true, nil // don't run
+		}
+
+		exitErr, ok := err.(*exec.ExitError) // embeds an os.ProcessState
+		if !ok {
+			// command failed in some bad way
+			return false, errwrap.Wrapf(err, "nifcmd failed in some bad way")
+		}
+		pStateSys := exitErr.Sys() // (*os.ProcessState) Sys
+		wStatus, ok := pStateSys.(syscall.WaitStatus)
+		if !ok {
+			return false, errwrap.Wrapf(err, "could not get exit status of nifcmd")
+		}
+		exitStatus := wStatus.ExitStatus()
+		if exitStatus == 0 {
+			// i'm not sure if this could happen
+			return false, errwrap.Wrapf(err, "unexpected nifcmd exit status of zero")
+		}
+
+		obj.init.Logf("nifcmd: %s", strings.Join(cmd.Args, " "))
+		obj.init.Logf("nifcmd exited with: %d, not skipping cmd", exitStatus)
+		if s := out.String(); s == "" {
+			obj.init.Logf("nifcmd out empty!")
+		} else {
+			obj.init.Logf("nifcmd out:")
+			obj.init.Logf("%s", s)
+		}
+
+		//if obj.NIfEquals != nil && *obj.NIfEquals == s {
+		//	obj.init.Logf("nifequals matched")
+		//	return true, nil // don't run
+		//}
+	}
+
 	if obj.Creates != "" { // gate the extra syscall
 		if _, err := os.Stat(obj.Creates); err == nil {
 			obj.init.Logf("creates file exists, skipping cmd")
@@ -717,7 +817,7 @@ func (obj *ExecRes) CheckApply(ctx context.Context, apply bool) (bool, error) {
 			cmdName = obj.DoneShell // usually bash, or sh
 			cmdArgs = []string{"-c", obj.DoneCmd}
 		}
-		cmd := exec.Command(cmdName, cmdArgs...)
+		cmd := exec.CommandContext(ctx, cmdName, cmdArgs...)
 		cmd.Dir = obj.DoneCwd // run program in pwd if ""
 		// ignore signals sent to parent process (we're in our own group)
 		cmd.SysProcAttr = &syscall.SysProcAttr{
@@ -910,6 +1010,16 @@ func (obj *ExecRes) Cmp(r engine.Res) error {
 		return errwrap.Wrapf(err, "the IfEquals differs")
 	}
 
+	if obj.NIfCmd != res.NIfCmd {
+		return fmt.Errorf("the NIfCmd differs")
+	}
+	if obj.NIfCwd != res.NIfCwd {
+		return fmt.Errorf("the NIfCwd differs")
+	}
+	if obj.NIfShell != res.NIfShell {
+		return fmt.Errorf("the NIfShell differs")
+	}
+
 	if obj.Creates != res.Creates {
 		return fmt.Errorf("the Creates differs")
 	}
@@ -956,6 +1066,7 @@ type ExecUID struct {
 	Cmd      string
 	WatchCmd string
 	IfCmd    string
+	NIfCmd   string
 	DoneCmd  string
 	// TODO: add more elements here
 }
@@ -1046,6 +1157,7 @@ func (obj *ExecRes) UIDs() []engine.ResUID {
 		Cmd:      obj.getCmd(),
 		WatchCmd: obj.WatchCmd,
 		IfCmd:    obj.IfCmd,
+		NIfCmd:   obj.NIfCmd,
 		DoneCmd:  obj.DoneCmd,
 		// TODO: add more params here
 	}
@@ -1140,6 +1252,11 @@ func (obj *ExecRes) cmdFiles() []string {
 	} else if sp := strings.Fields(obj.IfCmd); len(sp) > 0 {
 		paths = append(paths, sp[0])
 	}
+	if obj.NIfShell != "" {
+		paths = append(paths, obj.NIfShell)
+	} else if sp := strings.Fields(obj.NIfCmd); len(sp) > 0 {
+		paths = append(paths, sp[0])
+	}
 	if obj.DoneShell != "" {
 		paths = append(paths, obj.DoneShell)
 	} else if sp := strings.Fields(obj.DoneCmd); len(sp) > 0 {

engine/resources/group.go

@@ -197,7 +197,7 @@ func (obj *GroupRes) CheckApply(ctx context.Context, apply bool) (bool, error) {
 		cmdName = "groupdel"
 	}
 
-	cmd := exec.Command(cmdName, args...)
+	cmd := exec.CommandContext(ctx, cmdName, args...)
 	cmd.SysProcAttr = &syscall.SysProcAttr{
 		Setpgid: true,
 		Pgid:    0,

engine/resources/resources_test.go

@@ -661,7 +661,7 @@ func TestResources1(t *testing.T) {
 				}
 
 				t.Logf("test #%d: running CheckApply", index)
-				checkOK, err := res.CheckApply(doneCtx, true) // no noop!
+				checkOK, err := res.CheckApply(context.TODO(), true) // no noop!
 				if err != nil {
 					t.Errorf("test #%d: FAIL", index)
 					t.Errorf("test #%d: CheckApply failed: %s", index, err.Error())

engine/resources/sysctl.go

@@ -287,7 +287,7 @@ func (obj *SysctlRes) runtimeCheckApply(ctx context.Context, apply bool) (bool,
 	b, err := os.ReadFile(obj.toPath())
 	if err != nil && !os.IsNotExist(err) {
 		// system or permissions error?
-		return false, nil
+		return false, err
 	}
 	if err == nil && bytes.Equal(expected, b) {
 		return true, nil // we match!
@@ -323,7 +323,7 @@ func (obj *SysctlRes) persistCheckApply(ctx context.Context, apply bool) (bool,
 	b, err := os.ReadFile(obj.getFilename())
 	if err != nil && !os.IsNotExist(err) {
 		// system or permissions error?
-		return false, nil
+		return false, err
 	}
 	if err == nil && bytes.Equal(expected, b) {
 		return true, nil // we match!

examples/lang/exec-if.mcl

@@ -0,0 +1,20 @@
+exec "i will run 1" {
+	cmd => "/usr/bin/echo i WILL run",
+	ifcmd => "/usr/bin/true",
+}
+
+exec "i will not run 2" {
+	cmd => "/usr/bin/echo i will NOT run",
+	ifcmd => "/usr/bin/false",
+}
+
+# nifcmd exited with: 0, skipping cmd
+exec "i will not run 1" {
+	cmd => "/usr/bin/echo i will NOT run",
+	nifcmd => "/usr/bin/true",
+}
+
+exec "i will run 2" {
+	cmd => "/usr/bin/echo i WILL run",
+	nifcmd => "/usr/bin/false",
+}

go.mod

@@ -70,6 +70,7 @@ require (
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/chappjc/logrus-prefix v0.0.0-20180227015900-3a1d64819adb // indirect
 	github.com/cloudflare/circl v1.5.0 // indirect
+	github.com/cloudflare/cloudflare-go/v6 v6.1.0 // indirect
 	github.com/cloudwego/base64x v0.1.5 // indirect
 	github.com/containerd/log v0.1.0 // indirect
 	github.com/coreos/go-semver v0.3.1 // indirect
@@ -156,6 +157,10 @@ require (
 	github.com/spf13/cobra v1.8.1 // indirect
 	github.com/spf13/pflag v1.0.6-0.20250109003754-5ca813443bd2 // indirect
 	github.com/stmcginnis/gofish v0.20.0 // indirect
+	github.com/tidwall/gjson v1.14.4 // indirect
+	github.com/tidwall/match v1.1.1 // indirect
+	github.com/tidwall/pretty v1.2.1 // indirect
+	github.com/tidwall/sjson v1.2.5 // indirect
 	github.com/tmc/grpc-websocket-proxy v0.0.0-20220101234140-673ab2c3ae75 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/u-root/uio v0.0.0-20240224005618-d2acac8f3701 // indirect

go.sum

@@ -68,6 +68,8 @@ github.com/circonus-labs/circonusllhist v0.1.3/go.mod h1:kMXHVDlOchFAehlya5ePtbp
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cloudflare/circl v1.5.0 h1:hxIWksrX6XN5a1L2TI/h53AGPhNHoUBo+TD1ms9+pys=
 github.com/cloudflare/circl v1.5.0/go.mod h1:uddAzsPgqdMAYatqJ0lsjX1oECcQLIlRpzZh3pJrofs=
+github.com/cloudflare/cloudflare-go/v6 v6.1.0 h1:208leV/QEyIZuxFKNk3ztiOh4PeNW/qvLHvzafcbpjI=
+github.com/cloudflare/cloudflare-go/v6 v6.1.0/go.mod h1:Lj3MUqjvKctXRpdRhLQxZYRrNZHuRs0XYuH8JtQGyoI=
 github.com/cloudwego/base64x v0.1.5 h1:XPciSp1xaq2VCSt6lF0phncD4koWyULpl5bUxbfCyP4=
 github.com/cloudwego/base64x v0.1.5/go.mod h1:0zlkT4Wn5C6NdauXdJRhSKRlJvmclQ1hhJgA0rcu/8w=
 github.com/cloudwego/iasm v0.2.0/go.mod h1:8rXZaNYT2n95jn+zTI1sDr+IgcD2GVs0nlbbQPiEFhY=
@@ -496,6 +498,16 @@ github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/tidwall/gjson v1.14.2/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
+github.com/tidwall/gjson v1.14.4 h1:uo0p8EbA09J7RQaflQ1aBRffTR7xedD2bcIVSYxLnkM=
+github.com/tidwall/gjson v1.14.4/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
+github.com/tidwall/match v1.1.1 h1:+Ho715JplO36QYgwN9PGYNhgZvoUSc9X2c80KVTi+GA=
+github.com/tidwall/match v1.1.1/go.mod h1:eRSPERbgtNPcGhD8UCthc6PmLEQXEWd3PRB5JTxsfmM=
+github.com/tidwall/pretty v1.2.0/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=
+github.com/tidwall/pretty v1.2.1 h1:qjsOFOWWQl+N3RsoF5/ssm1pHmJJwhjlSbZ51I6wMl4=
+github.com/tidwall/pretty v1.2.1/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=
+github.com/tidwall/sjson v1.2.5 h1:kLy8mja+1c9jlljvWTlSazM7cKDRfJuR/bOJhcY5NcY=
+github.com/tidwall/sjson v1.2.5/go.mod h1:Fvgq9kS/6ociJEDnK0Fk1cpYF4FIW6ZF7LAe+6jwd28=
 github.com/tmc/grpc-websocket-proxy v0.0.0-20220101234140-673ab2c3ae75 h1:6fotK7otjonDflCTK0BCfls4SPy3NcCVb5dqqmbRknE=
 github.com/tmc/grpc-websocket-proxy v0.0.0-20220101234140-673ab2c3ae75/go.mod h1:KO6IkyS8Y3j8OdNO85qEYBsRPuteD+YciPomcXdrMnk=
 github.com/tredoe/osutil v1.5.0 h1:UGVxbbHRoZi8xXVmbNZ2vgG6XoJ15ndE4LniiQ3rJKg=

lang/ast/structs.go

@@ -5624,7 +5624,7 @@ func (obj *StmtProg) SetScope(scope *interfaces.Scope) error {
 	// debugging visualizations
 	if obj.data.Debug && orderingGraphSingleton {
 		obj.data.Logf("running graphviz for ordering graph...")
-		if err := orderingGraph.ExecGraphviz("/tmp/graphviz-ordering.dot"); err != nil {
+		if err := orderingGraph.ExecGraphviz(context.TODO(), "/tmp/graphviz-ordering.dot"); err != nil {
 			obj.data.Logf("graphviz: errored: %+v", err)
 		}
 		//if err := orderingGraphFiltered.ExecGraphviz("/tmp/graphviz-ordering-filtered.dot"); err != nil {

lang/funcs/dage/dage.go

@@ -961,7 +961,7 @@ func (obj *Engine) Graph() *pgraph.Graph {
 // ExecGraphviz writes out the diagram of a graph to be used for visualization
 // and debugging. You must not modify the graph (eg: during Lock) when calling
 // this method.
-func (obj *Engine) ExecGraphviz(dir string) error {
+func (obj *Engine) ExecGraphviz(ctx context.Context, dir string) error {
 	// No mutex needed here since this func runs in a non-concurrent Txn.
 
 	// No mutex is needed at this time because we only run this in txn's and
@@ -1019,7 +1019,7 @@ func (obj *Engine) ExecGraphviz(dir string) error {
 		},
 	}
 
-	if err := gv.Exec(); err != nil {
+	if err := gv.Exec(ctx); err != nil {
 		return err
 	}
 	return nil

lang/interpret_test.go

@@ -567,7 +567,7 @@ func TestAstFunc1(t *testing.T) {
 			}
 			if runGraphviz {
 				t.Logf("test #%d: Running graphviz...", index)
-				if err := fgraph.ExecGraphviz("/tmp/graphviz.dot"); err != nil {
+				if err := fgraph.ExecGraphviz(context.TODO(), "/tmp/graphviz.dot"); err != nil {
 					t.Errorf("test #%d: FAIL", index)
 					t.Errorf("test #%d: writing graph failed: %+v", index, err)
 					return
@@ -1120,7 +1120,7 @@ func TestAstFunc2(t *testing.T) {
 				}
 				ast.ScopeGraph(graph)
 
-				if err := graph.ExecGraphviz("/tmp/set-scope.dot"); err != nil {
+				if err := graph.ExecGraphviz(context.TODO(), "/tmp/set-scope.dot"); err != nil {
 					t.Errorf("test #%d: FAIL", index)
 					t.Errorf("test #%d: writing graph failed: %+v", index, err)
 					return
@@ -1233,7 +1233,7 @@ func TestAstFunc2(t *testing.T) {
 
 			if runGraphviz {
 				t.Logf("test #%d: Running graphviz...", index)
-				if err := fgraph.ExecGraphviz("/tmp/graphviz.dot"); err != nil {
+				if err := fgraph.ExecGraphviz(context.TODO(), "/tmp/graphviz.dot"); err != nil {
 					t.Errorf("test #%d: FAIL", index)
 					t.Errorf("test #%d: writing graph failed: %+v", index, err)
 					return
@@ -1996,7 +1996,7 @@ func TestAstFunc3(t *testing.T) {
 				}
 				ast.ScopeGraph(graph)
 
-				if err := graph.ExecGraphviz("/tmp/set-scope.dot"); err != nil {
+				if err := graph.ExecGraphviz(context.TODO(), "/tmp/set-scope.dot"); err != nil {
 					t.Errorf("test #%d: FAIL", index)
 					t.Errorf("test #%d: writing graph failed: %+v", index, err)
 					return
@@ -2088,7 +2088,7 @@ func TestAstFunc3(t *testing.T) {
 
 			if runGraphviz {
 				t.Logf("test #%d: Running graphviz...", index)
-				if err := fgraph.ExecGraphviz("/tmp/graphviz.dot"); err != nil {
+				if err := fgraph.ExecGraphviz(context.TODO(), "/tmp/graphviz.dot"); err != nil {
 					t.Errorf("test #%d: FAIL", index)
 					t.Errorf("test #%d: writing graph failed: %+v", index, err)
 					return

lib/main.go

@@ -1049,7 +1049,8 @@ func (obj *Main) Run() error {
 						obj.ge.Graph(): nil,
 					},
 				}
-				if err := gv.Exec(); err != nil {
+				// FIXME: is this the right ctx?
+				if err := gv.Exec(exitCtx); err != nil {
 					Logf("graphviz: %+v", err)
 				} else {
 					Logf("graphviz: successfully generated graph!")

misc/fpm-repo.sh

@@ -0,0 +1,186 @@
+#!/usr/bin/env bash
+# This script makes packages of mgmt using fpm. It pulls in any binaries from:
+# releases/$version/binary-linux-$arch/mgmt-linux-$arch-$version and builds to:
+# repository/$distro-$version/$arch/ before it runs the appropriate createrepo
+# commands.
+
+# NOTE: run `gem install fpm` to update my ~/bin/fpm to the latest version.
+# TODO: consider switching to https://github.com/goreleaser/nfpm
+
+# the binary to package
+BINARY="mgmt"
+# maintainer email
+MAINTAINER="fpm@mgmtconfig.com"
+# project url
+URL="https://github.com/purpleidea/mgmt/"
+# project description
+DESCRIPTION="Next generation distributed, event-driven, parallel config management!"
+# project license
+LICENSE="GPLv3"
+# location to install the binary
+PREFIX="/usr/bin"
+# release directory
+DIR="releases"
+# repository directory
+OUT="repository"
+
+## make sure the distro is a known valid one
+#if [[ "$DISTRO" == fedora-* ]]; then
+#	typ="rpm"
+#elif [[ "$DISTRO" == centos-* ]]; then
+#	typ="rpm"
+#elif [[ "$DISTRO" == debian-* ]]; then
+#	typ="deb"
+#elif [[ "$DISTRO" == ubuntu-* ]]; then
+#	typ="deb"
+#elif [[ "$DISTRO" == archlinux ]]; then
+#	typ="pacman"
+#else
+#	echo "unknown distro: ${DISTRO}."
+#	exit 1
+#fi
+
+#if [ "$typ" != "rpm" ] && [ "$typ" != "deb" ] && [ "$typ" != "pacman" ]; then
+#	echo "invalid package type"
+#	exit 1
+#fi
+
+## assume the file extension
+#ext="$typ"
+#if [ "$typ" = "pacman" ]; then	# archlinux is an exception
+#	ext="pkg.tar.xz"
+#fi
+
+# in case the `fpm` gem bin isn't in the $PATH
+if command -v ruby >/dev/null && command -v gem >/dev/null && ! command -v fpm >/dev/null; then
+	PATH="$(ruby -r rubygems -e 'puts Gem.user_dir')/bin:$PATH"
+fi
+
+# skip putting these versions into the repos
+skip_mgmt_version=()
+skip_mgmt_version+=("0.0.25")
+skip_mgmt_version+=("0.0.26")
+skip_mgmt_version+=("0.0.27")
+
+# from binary arch to repoarch
+declare -A map_repoarch=(
+	[amd64]="x86_64"
+	[arm64]="aarch64"
+)
+
+declare -A map_distrotype=(
+	[fedora]="rpm"
+	[debian]="deb"
+)
+
+declare -A map_distro_version=(
+	["fedora-41"]="libvirt-devel augeas-devel"
+	["fedora-42"]="libvirt-devel augeas-devel"
+	["debian-13"]="libvirt-dev libaugeas-dev"
+)
+
+#echo releases:
+#for dv in "fedora-41" "fedora-42" "debian-11" "archlinux-xx"; do
+for dv in "${!map_distro_version[@]}"; do
+	distro=${dv%%-*};
+	version=${dv##*-}
+	deps=${map_distro_version[$dv]}
+
+	echo "distro-version: ${distro}-${version}"
+	mkdir -p ${OUT}/$dv/
+
+	type=${map_distrotype[$distro]}
+
+	# track the arches we see
+	declare -A repoarches=()
+
+	for chunk1 in ${DIR}/*; do
+		if [ ! -d "$chunk1" ]; then # check if it's a regular dir
+			continue
+		fi
+		package_version=$(basename "$chunk1")
+		#echo "package_version: $package_version"
+
+		if [[ " ${skip_mgmt_version[*]} " == *" $package_version "* ]]; then
+			echo "skip: ${package_version}"
+			continue
+		fi
+
+		for chunk2 in $chunk1/binary-linux-*; do
+			if [ ! -d "$chunk2" ]; then # check if it's a regular dir
+				continue
+			fi
+			arch=${chunk2##*-}
+			#echo "arch: $arch"
+
+			repoarch=${map_repoarch[$arch]}
+			#echo "repoarch: $repoarch"
+
+			repoarches["${repoarch}"]="${type}" # tag it
+
+			mkdir -p ${OUT}/${distro}-${version}/$repoarch/
+
+			#file $chunk2/mgmt-linux-$arch-$package_version # found it
+
+			output="${OUT}/${distro}-${version}/${repoarch}/mgmt-${package_version}.${repoarch}.${type}"
+
+			if [ -f "$output" ]; then
+				echo "skip: ${output}"
+				continue
+			fi
+
+			depends=""
+			for i in $deps; do
+				depends="$depends --depends $i"
+			done
+
+			# build the package
+			echo "fpm..."
+			echo "output: ${output}"
+			fpm \
+			--log error \
+			--name "$BINARY" \
+			--version "$package_version" \
+			--maintainer "$MAINTAINER" \
+			--url "$URL" \
+			--description "$DESCRIPTION" \
+			--license "$LICENSE" \
+			--input-type dir \
+			--output-type "$type" \
+			--package "${output}" \
+			${depends} \
+			"misc/mgmt.service"="/usr/lib/systemd/system/mgmt.service" \
+			"$BINARY"="$PREFIX/mgmt" \
+			|| rm "${output}" # if it fails, remove it...
+		done
+	done
+
+	# now run createrepo or similar
+	for key in "${!repoarches[@]}"; do
+		type=${repoarches[$key]}
+		outdir="${OUT}/$dv/${key}/"
+		if [ "$type" = "rpm" ]; then
+			echo "createrepo ${type} ${outdir}"
+			# TODO: use --deltas ?
+			createrepo_c --update "${outdir}"
+		fi
+		if [ "$type" = "deb" ]; then
+			cd ${outdir} > /dev/null
+			# don't regenerate unnecessarily
+			if [[ ! -f Packages.gz ]] || find . -name '*.deb' -newer Packages.gz | grep -q .; then
+				echo "dpkg-scanpackages ${type} ${outdir}"
+				dpkg-scanpackages --multiversion . /dev/null | gzip -9 > Packages.gz
+			fi
+			cd - > /dev/null # silence it
+		fi
+	done
+done
+
+USERNAME=$(cat ~/.config/copr 2>/dev/null | grep username | awk -F '=' '{print $2}' | tr -d ' ')
+SERVER='dl.fedoraproject.org'
+REMOTE_PATH="/srv/pub/alt/${USERNAME}/${BINARY}/repo/"
+if [ "${USERNAME}" = "" ]; then
+	echo "empty username, can't rsync"
+fi
+
+rsync -avzSH --progress --delete ${OUT}/ ${SERVER}:${REMOTE_PATH}

pgraph/graphviz.go

@@ -30,6 +30,7 @@
 package pgraph // TODO: this should be a subpackage
 
 import (
+	"context"
 	"fmt"
 	"html"
 	"os"
@@ -153,7 +154,7 @@ func (obj *Graphviz) Text() string {
 
 // Exec writes out the graphviz data and runs the correct graphviz filter
 // command.
-func (obj *Graphviz) Exec() error {
+func (obj *Graphviz) Exec(ctx context.Context) error {
 	filter := ""
 	switch obj.Filter {
 	case "":
@@ -195,7 +196,7 @@ func (obj *Graphviz) Exec() error {
 	}
 
 	out := fmt.Sprintf("%s.png", filename)
-	cmd := exec.Command(path, "-Tpng", fmt.Sprintf("-o%s", out), filename)
+	cmd := exec.CommandContext(ctx, path, "-Tpng", fmt.Sprintf("-o%s", out), filename)
 
 	if err1 == nil && err2 == nil {
 		cmd.SysProcAttr = &syscall.SysProcAttr{}
@@ -286,7 +287,7 @@ func (obj *Graph) Graphviz() string {
 
 // ExecGraphviz writes out the graphviz data and runs the correct graphviz
 // filter command.
-func (obj *Graph) ExecGraphviz(filename string) error {
+func (obj *Graph) ExecGraphviz(ctx context.Context, filename string) error {
 	gv := &Graphviz{
 		Graphs: map[*Graph]*GraphvizOpts{
 			obj: nil,
@@ -296,5 +297,5 @@ func (obj *Graph) ExecGraphviz(filename string) error {
 		Filename: filename,
 		//Hostname: hostname,
 	}
-	return gv.Exec()
+	return gv.Exec(ctx)
 }

pgraph/pgraph_test.go

@@ -485,7 +485,7 @@ func TestTopoSort3(t *testing.T) {
 	G.AddEdge(v5, v6, e5)
 	G.AddEdge(v4, v2, e6) // cycle
 
-	G.ExecGraphviz("/tmp/g.dot")
+	//G.ExecGraphviz(context.TODO(), "/tmp/g.dot")
 
 	_, err := G.TopologicalSort()
 	if err == nil {