/
plugins.go
206 lines (176 loc) · 5.39 KB
/
plugins.go
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package cmd
import (
"encoding/json"
"io/ioutil"
"os"
"strings"
"github.com/olekukonko/tablewriter"
"github.com/spf13/cobra"
"github.com/thomas-maurice/gowerline/gowerline-server/config"
"github.com/thomas-maurice/gowerline/gowerline-server/types"
"github.com/thomas-maurice/gowerline/gowerline-server/utils"
"go.uber.org/zap"
)
var (
runArgs []string
)
var pluginCmd = &cobra.Command{
Use: "plugin",
Short: "Interact with plugins",
Long: ``,
}
var pluginListCmd = &cobra.Command{
Use: "list",
Short: "Lists plugins currently loaded",
Long: ``,
Run: func(cmd *cobra.Command, args []string) {
cfg, err := config.NewConfigFromFile(configFile)
if err != nil {
log.Panic("could not load config", zap.Error(err))
}
client := utils.NewHTTPClientFromConfig(cfg)
resp, err := client.Get(utils.BaseURLFromConfig(cfg) + "/plugins")
if err != nil {
log.Fatal("could not fetch the server's version", zap.Error(err))
}
b, err := ioutil.ReadAll(resp.Body)
if err != nil {
log.Fatal("could not read http response", zap.Error(err))
}
defer resp.Body.Close()
pluginInfo := make(map[string]types.PluginMetadata)
err = json.Unmarshal(b, &pluginInfo)
if err != nil {
log.Fatal("could not unmarshal server response", zap.Error(err))
}
table := tablewriter.NewWriter(os.Stdout)
table.SetHeader([]string{"Name", "Description", "Author", "Version"})
for name, meta := range pluginInfo {
table.Append([]string{name, meta.Description, meta.Author, meta.Version})
}
table.Render()
},
}
var pluginFunctionsCmd = &cobra.Command{
Use: "functions [plugin]",
Short: "Retrieves info about a specific plugin's functions",
Args: cobra.ExactArgs(1),
Long: ``,
Run: func(cmd *cobra.Command, args []string) {
cfg, err := config.NewConfigFromFile(configFile)
if err != nil {
log.Panic("could not load config", zap.Error(err))
}
client := utils.NewHTTPClientFromConfig(cfg)
resp, err := client.Get(utils.BaseURLFromConfig(cfg) + "/plugins")
if err != nil {
log.Fatal("could not fetch the server's version", zap.Error(err))
}
b, err := ioutil.ReadAll(resp.Body)
if err != nil {
log.Fatal("could not read http response", zap.Error(err))
}
defer resp.Body.Close()
pluginInfo := make(map[string]types.PluginMetadata)
err = json.Unmarshal(b, &pluginInfo)
if err != nil {
log.Fatal("could not unmarshal server response", zap.Error(err))
}
for name, meta := range pluginInfo {
if name == args[0] {
table := tablewriter.NewWriter(os.Stdout)
table.SetHeader([]string{"Function name", "Description", "Argument", "Argument help"})
for _, functionMeta := range meta.Functions {
table.Append([]string{functionMeta.Name, functionMeta.Description, "", ""})
for paramName, paramDesc := range functionMeta.Parameters {
table.Append([]string{"", "", paramName, paramDesc})
}
}
table.Render()
return
}
}
log.Fatal("no such plugin", zap.String("plugin", args[0]))
},
}
var pluginRunFunction = &cobra.Command{
Use: "run-function [function]",
Short: "Runs a function with the given parameters",
Args: cobra.ExactArgs(1),
Long: ``,
Run: func(cmd *cobra.Command, args []string) {
cfg, err := config.NewConfigFromFile(configFile)
if err != nil {
log.Panic("could not load config", zap.Error(err))
}
client := utils.NewHTTPClientFromConfig(cfg)
argsMap := make(map[string]string)
for _, arg := range runArgs {
splitted := strings.Split(arg, "=")
if len(splitted) == 0 {
continue
} else if len(splitted) == 1 {
argsMap[splitted[0]] = ""
} else if len(splitted) == 2 {
argsMap[splitted[0]] = splitted[1]
} else {
argsMap[splitted[0]] = strings.Join(splitted[1:], "=")
}
}
var payload types.Payload
payload.Function = args[0]
b, err := json.Marshal(argsMap)
if err != nil {
log.Fatal("could not marshal args", zap.Error(err))
}
msg := json.RawMessage(b)
payload.Args = &msg
cwd, err := os.Getwd()
if err != nil {
log.Fatal("could not gte current working directory", zap.Error(err))
}
payload.Cwd = cwd
env := os.Environ()
payload.Env = make(map[string]string)
for _, envVar := range env {
splitted := strings.Split(envVar, "=")
if len(splitted) == 0 {
continue
} else if len(splitted) == 1 {
payload.Env[splitted[0]] = ""
} else if len(splitted) == 2 {
payload.Env[splitted[0]] = splitted[1]
} else {
payload.Env[splitted[0]] = strings.Join(splitted[1:], "=")
}
}
b, err = json.Marshal(payload)
if err != nil {
log.Fatal("could not marshal request", zap.Error(err))
}
if debug {
output(payload)
}
resp, err := client.Post(utils.BaseURLFromConfig(cfg)+"/plugin", "application/json", strings.NewReader(string(b)))
if err != nil {
log.Fatal("could not fetch the server's version", zap.Error(err))
}
b, err = ioutil.ReadAll(resp.Body)
if err != nil {
log.Fatal("could not read http response", zap.Error(err))
}
defer resp.Body.Close()
content := make([]types.PowerlineReturn, 0)
err = json.Unmarshal(b, &content)
if err != nil {
log.Fatal("could not unmarshal server response", zap.Error(err))
}
output(content)
},
}
func initPluginCommand() {
pluginRunFunction.PersistentFlags().StringSliceVarP(&runArgs, "arg", "a", []string{}, "Arguments to pass in a key=value format")
pluginCmd.AddCommand(pluginListCmd)
pluginCmd.AddCommand(pluginFunctionsCmd)
pluginCmd.AddCommand(pluginRunFunction)
}