build-sys: use local asciigoat.org/ini

Signed-off-by: Alejandro Mery <amery@jpi.io>

.vscode/settings.json

@@ -4,6 +4,7 @@
         "ceph",
         "cyclomatic",
         "darvaza",
+        "jpictl",
         "Wrapf"
     ]
 }

go.mod

@@ -5,12 +5,13 @@ go 1.19
 replace asciigoat.org/ini => ../../../asciigoat.org/ini
 
 require (
-	asciigoat.org/ini v0.2.3
+	asciigoat.org/ini v0.2.4
 	darvaza.org/core v0.9.8
 	darvaza.org/resolver v0.5.2
 	darvaza.org/sidecar v0.0.2
 	darvaza.org/slog v0.5.3
 	github.com/burntSushi/toml v0.3.1
+	github.com/gofrs/uuid/v5 v5.0.0
 	github.com/hack-pad/hackpadfs v0.2.1
 	github.com/mgechev/revive v1.3.3
 	github.com/spf13/cobra v1.7.0

go.sum

@@ -28,6 +28,8 @@ github.com/fatih/color v1.15.0/go.mod h1:0h5ZqXfHYED7Bhv2ZJamyIOUej9KtShiJESRwBD
 github.com/fatih/structtag v1.2.0 h1:/OdNE99OxoI/PqaW/SuSK9uxxT3f/tcSZgon/ssNSx4=
 github.com/fatih/structtag v1.2.0/go.mod h1:mBJUNpUnHmRKrKlQQlmCrh5PuhftFbNv8Ys4/aAZl94=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
+github.com/gofrs/uuid/v5 v5.0.0 h1:p544++a97kEL+svbcFbCQVM9KFu0Yo25UoISXGNNH9M=
+github.com/gofrs/uuid/v5 v5.0.0/go.mod h1:CDOjlDMVAtN56jqyRUZh58JT31Tiw7/oQyEXZV+9bD8=
 github.com/hack-pad/hackpadfs v0.2.1 h1:FelFhIhv26gyjujoA/yeFO+6YGlqzmc9la/6iKMIxMw=
 github.com/hack-pad/hackpadfs v0.2.1/go.mod h1:khQBuCEwGXWakkmq8ZiFUvUZz84ZkJ2KNwKvChs4OrU=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=

pkg/ceph/ceph.go

@@ -0,0 +1,2 @@
+// Package ceph deals with ceph config
+package ceph

pkg/ceph/config.go

@@ -0,0 +1,38 @@
+package ceph
+
+import (
+	"io"
+	"net/netip"
+
+	"github.com/gofrs/uuid/v5"
+
+	"asciigoat.org/ini/basic"
+)
+
+// Config represents a ceph.conf file
+type Config struct {
+	Global GlobalConfig `ini:"global"`
+}
+
+// GlobalConfig represents the [global] section of a ceph.conf file
+type GlobalConfig struct {
+	FSID           uuid.UUID    `ini:"fsid"`
+	Monitors       []string     `ini:"mon_host,comma"`
+	MonitorsAddr   []netip.Addr `ini:"mon_initial_members,comma"`
+	ClusterNetwork netip.Prefix `ini:"cluster_network"`
+}
+
+// NewConfigFromReader parses the ceph.conf file
+func NewConfigFromReader(r io.Reader) (*Config, error) {
+	doc, err := basic.Decode(r)
+	if err != nil {
+		return nil, err
+	}
+
+	cfg, err := newConfigFromDocument(doc)
+	if err != nil {
+		return nil, err
+	}
+
+	return cfg, nil
+}

pkg/ceph/config_parser.go

@@ -0,0 +1,108 @@
+package ceph
+
+import (
+	"io/fs"
+	"net/netip"
+
+	"asciigoat.org/ini/basic"
+	"asciigoat.org/ini/parser"
+
+	"darvaza.org/core"
+)
+
+var sectionMap = map[string]func(*Config, *basic.Section) error{
+	"global": loadGlobalConfSection,
+}
+
+func loadConfSection(out *Config, src *basic.Section) error {
+	h, ok := sectionMap[src.Key]
+	if !ok {
+		return core.Wrapf(fs.ErrInvalid, "unknown section %q", src.Key)
+	}
+
+	return h(out, src)
+}
+
+func loadGlobalConfSection(out *Config, src *basic.Section) error {
+	var cfg GlobalConfig
+
+	for _, field := range src.Fields {
+		if err := loadGlobalConfField(&cfg, field); err != nil {
+			return core.Wrap(err, "global")
+		}
+	}
+
+	out.Global = cfg
+	return nil
+}
+
+// revive:disable:cyclomatic
+// revive:disable:cognitive-complexity
+
+func loadGlobalConfField(cfg *GlobalConfig, field basic.Field) error {
+	// revive:enable:cyclomatic
+	// revive:enable:cognitive-complexity
+
+	switch field.Key {
+	case "fsid":
+		if !core.IsZero(cfg.FSID) {
+			return core.Wrapf(fs.ErrInvalid, "duplicate field %q", field.Key)
+		}
+
+		err := cfg.FSID.UnmarshalText([]byte(field.Value))
+		switch {
+		case err != nil:
+			return core.Wrap(err, field.Key)
+		default:
+			return nil
+		}
+	case "mon_host":
+		entries, _ := parser.SplitCommaArray(field.Value)
+		for _, s := range entries {
+			var addr netip.Addr
+
+			if err := addr.UnmarshalText([]byte(s)); err != nil {
+				return core.Wrap(err, field.Key)
+			}
+
+			cfg.MonitorsAddr = append(cfg.MonitorsAddr, addr)
+		}
+		return nil
+	case "mon_initial_members":
+		entries, _ := parser.SplitCommaArray(field.Value)
+		cfg.Monitors = append(cfg.Monitors, entries...)
+		return nil
+	case "cluster_network":
+		if !core.IsZero(cfg.ClusterNetwork) {
+			err := core.Wrap(fs.ErrInvalid, "fields before the first section")
+			return err
+		}
+
+		err := cfg.ClusterNetwork.UnmarshalText([]byte(field.Value))
+		switch {
+		case err != nil:
+			return core.Wrap(err, field.Key)
+		default:
+			return nil
+		}
+	}
+	return nil
+}
+
+func newConfigFromDocument(doc *basic.Document) (*Config, error) {
+	var out Config
+
+	if len(doc.Global) > 0 {
+		err := core.Wrap(fs.ErrInvalid, "fields before the first section")
+		return nil, err
+	}
+
+	for i := range doc.Sections {
+		src := &doc.Sections[i]
+		if err := loadConfSection(&out, src); err != nil {
+			return nil, err
+		}
+	}
+
+	return &out, nil
+}

pkg/zones/ceph.go

@@ -0,0 +1,18 @@
+package zones
+
+import (
+	"bytes"
+
+	"git.jpi.io/amery/jpictl/pkg/ceph"
+)
+
+// GetCephConfig reads the ceph.conf file
+func (m *Zones) GetCephConfig() (*ceph.Config, error) {
+	data, err := m.ReadFile("ceph.conf")
+	if err != nil {
+		return nil, err
+	}
+
+	r := bytes.NewReader(data)
+	return ceph.NewConfigFromReader(r)
+}