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config; pointer to pools for pull and push jobs

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This commit is contained in:
Christian Schwarz 2017-04-29 19:07:47 +02:00
parent 526255a9ef
commit 9edc2005ea
1 changed files with 31 additions and 8 deletions
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39
cmd/config.go
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@ -2,6 +2,7 @@ package main
import (
"errors"
"fmt"
"github.com/mitchellh/mapstructure"
"github.com/zrepl/zrepl/zfs"
yaml "gopkg.in/yaml.v2"
@ -14,11 +15,11 @@ type Pool struct {
Url string
}
type Push struct {
To string
To *Pool
Datasets []zfs.DatasetPath
}
type Pull struct {
From string
From *Pool
Mapping zfs.DatasetMapping
}
type Sink struct {
@ -54,10 +55,20 @@ func parseMain(root map[string]interface{}) (c Config, err error) {
if c.Pools, err = parsePools(root["pools"]); err != nil {
return
}
if c.Pushs, err = parsePushs(root["pushs"]); err != nil {
poolLookup := func(name string) (*Pool, error) {
for _, pool := range c.Pools {
if pool.Name == name {
return &pool, nil
}
}
return nil, errors.New(fmt.Sprintf("pool '%s' not defined", name))
}
if c.Pushs, err = parsePushs(root["pushs"], poolLookup); err != nil {
return
}
if c.Pulls, err = parsePulls(root["pulls"]); err != nil {
if c.Pulls, err = parsePulls(root["pulls"], poolLookup); err != nil {
return
}
if c.Sinks, err = parseSinks(root["sinks"]); err != nil {
@ -72,7 +83,9 @@ func parsePools(v interface{}) (p []Pool, err error) {
return
}
func parsePushs(v interface{}) (p []Push, err error) {
type poolLookup func(name string) (*Pool, error)
func parsePushs(v interface{}, pl poolLookup) (p []Push, err error) {
asList := make([]struct {
To string
@ -86,8 +99,13 @@ func parsePushs(v interface{}) (p []Push, err error) {
p = make([]Push, len(asList))
for i, e := range asList {
var toPool *Pool
if toPool, err = pl(e.To); err != nil {
return
}
push := Push{
To: e.To,
To: toPool,
Datasets: make([]zfs.DatasetPath, len(e.Datasets)),
}
@ -103,7 +121,7 @@ func parsePushs(v interface{}) (p []Push, err error) {
return
}
func parsePulls(v interface{}) (p []Pull, err error) {
func parsePulls(v interface{}, pl poolLookup) (p []Pull, err error) {
asList := make([]struct {
From string
@ -117,8 +135,13 @@ func parsePulls(v interface{}) (p []Pull, err error) {
p = make([]Pull, len(asList))
for i, e := range asList {
var fromPool *Pool
if fromPool, err = pl(e.From); err != nil {
return
}
pull := Pull{
From: e.From,
From: fromPool,
}
if pull.Mapping, err = parseComboMapping(e.Mapping); err != nil {
return