Question

我有以下yaml：

segmentforward: ""
segmentbackward: ""
listforward: ""
promptready: "➜"

enabledhooks: ["alert"]

enabledsegments: ["host", "path", "python_env", "aws", "git", "filler", "command", "timestamp", "newline", "prompt_ready"]

hostsegment: { fgcolor: 250, bgcolor: 238 }
pathsegment: { fgcolor: 15, bgcolor: 31 }
pythonenvsegment: { fgcolor: 15, bgcolor: 22 }
awssegment: { fgcolor: 172, bgcolor: 238 }
gitsegment: { fgcolor: 238, bgcolor: 148 }
fillersegment: { fgcolor: 251, bgcolor: 251 }
commandsegment: { fgcolor: 238, bgcolor: 250 }
timestampsegment: { fgcolor: 250, bgcolor: 238 }
promptreadysegment: { fgcolor: 238, bgcolor: 251 }

我试图使用以下代码解析此yaml：

package config

import (
    "gopkg.in/yaml.v2"
    "io/ioutil"
)

type Config struct {
    SegmentForward string
    SegmentBackward string
    ListForward string
    PromptReady string
    EnabledHooks []string
    EnabledSegments []string
    HostSegment struct {
      FgColor int
      BgColor int
    }
}

func LoadConfig(path string) (config Config) {

    data, err := ioutil.ReadFile(path)
    if err != nil {
      panic(err)
    }

    err = yaml.Unmarshal(data, &config)
    if err != nil {
      panic(err)
    }

    return config
}

但这给了我错误：

panic: yaml: unmarshal errors:
  line 18: cannot unmarshal !!map into string

goroutine 1 [running]:
panic(0x3364c0, 0xc42014a9c0)
    /usr/local/Cellar/go/1.7.4/libexec/src/runtime/panic.go:500 +0x1a1
github.com/brujoand/sbp/config.LoadConfig(0x3b7138, 0x23, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
    /opt/go/src/github.com/brujoand/sbp/config/config.go:30 +0x12d
main.main()
    /opt/go/src/github.com/brujoand/sbp/main.go:18 +0x50

我想要的是能够直接引用这些片段而无需查找地图。然后在每个细分中都有相同类型的字段。我知道我在Yaml中的命名并不好（抱歉），但是现在我试图理解如何以简单的方式访问这些字段。

Answer 1

这个yaml可以完美地解组（因为你不想使用地图）：

type Config struct {
    SegmentForward  string
    SegmentBackward string
    ListForward     string
    PromptReady     string
    EnabledHooks    []string
    EnabledSegments []string

    HostSegment, PathSegment, PythonEnvSegment, AWSSegment, GitSegment  segment
    FillerSegment, CommandSegment, TimestampSegment, PromptReadySegment segment
}

type segment struct {
    FgColor int
    BgColor int
}

在Go中解析包含结构的yaml对象

1 个答案: