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Can update yam to stdout

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This commit is contained in:
Mike Farah 2015-09-29 16:29:32 +10:00
parent 2a0290aeac
commit 364c1a8af3
2 changed files with 43 additions and 10 deletions
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18
README.md
View File

@ -44,6 +44,22 @@ yaml sample.yaml b.e.1.name
``` ```
will output 'sam' will output 'sam'
### Updating yaml
Given a sample.yaml file of:
```yaml
b:
c: 2
```
then
```bash
yaml w sample.yaml b.c 'cat'
```
will output:
```yaml
b:
c: cat
```
## TODO ## TODO
* Updating yaml files
* Handling '.' in path names * Handling '.' in path names

35
yaml.go
View File

@ -30,37 +30,59 @@ func main() {
}, },
} }
app.Action = readProperty app.Action = readProperty
app.Flags = []cli.Flag{
cli.StringFlag{
Name: "trim, t",
Value: "true",
Usage: "trim output",
},
}
app.Run(os.Args) app.Run(os.Args)
} }
func readProperty(c *cli.Context) { func readProperty(c *cli.Context) {
var parsedData map[interface{}]interface{} var parsedData map[interface{}]interface{}
readYaml(c, &parsedData) readYaml(c, &parsedData)
if len(c.Args()) == 1 {
printYaml(parsedData, c.Bool("trim"))
os.Exit(0)
}
var path = c.Args()[1] var path = c.Args()[1]
var paths = strings.Split(path, ".") var paths = strings.Split(path, ".")
printYaml(readMap(parsedData, paths[0], paths[1:len(paths)])) printYaml(readMap(parsedData, paths[0], paths[1:len(paths)]), c.Bool("trim"))
} }
func writeProperty(c *cli.Context) { func writeProperty(c *cli.Context) {
var parsedData map[interface{}]interface{} var parsedData map[interface{}]interface{}
readYaml(c, &parsedData) readYaml(c, &parsedData)
if len(c.Args()) != 3 {
log.Fatalf("Must provide <filename> <path_to_update> <value>")
}
var path = c.Args()[1] var path = c.Args()[1]
var paths = strings.Split(path, ".") var paths = strings.Split(path, ".")
write(parsedData, paths[0], paths[1:len(paths)], c.Args()[2]) write(parsedData, paths[0], paths[1:len(paths)], c.Args()[2])
printYaml(parsedData) printYaml(parsedData, c.Bool("trim"))
} }
func printYaml(context interface{}) { func printYaml(context interface{}, trim bool) {
out, err := yaml.Marshal(context) out, err := yaml.Marshal(context)
if err != nil { if err != nil {
log.Fatalf("error printing yaml: %v", err) log.Fatalf("error printing yaml: %v", err)
} }
fmt.Println(string(out)) outStr := string(out)
if trim {
outStr = strings.Trim(outStr, "\n ")
}
fmt.Println(outStr)
} }
func readYaml(c *cli.Context, parsedData *map[interface{}]interface{}) { func readYaml(c *cli.Context, parsedData *map[interface{}]interface{}) {
@ -69,11 +91,6 @@ func readYaml(c *cli.Context, parsedData *map[interface{}]interface{}) {
} }
var rawData = readFile(c.Args()[0]) var rawData = readFile(c.Args()[0])
if len(c.Args()) == 1 {
fmt.Println(string(rawData[:]))
os.Exit(0)
}
err := yaml.Unmarshal([]byte(rawData), &parsedData) err := yaml.Unmarshal([]byte(rawData), &parsedData)
if err != nil { if err != nil {
log.Fatalf("error: %v", err) log.Fatalf("error: %v", err)