mirror of https://github.com/knative/func.git
108 lines
2.5 KiB
Go
108 lines
2.5 KiB
Go
package cmd
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import (
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"fmt"
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"github.com/ory/viper"
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"github.com/spf13/cobra"
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"knative.dev/client/pkg/util"
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fn "github.com/boson-project/func"
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"github.com/boson-project/func/docker"
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)
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func init() {
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// Add the run command as a subcommand of root.
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root.AddCommand(runCmd)
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runCmd.Flags().StringArrayP("env", "e", []string{}, "Environment variable to set in the form NAME=VALUE. "+
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"You may provide this flag multiple times for setting multiple environment variables. "+
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"To unset, specify the environment variable name followed by a \"-\" (e.g., NAME-).")
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runCmd.Flags().StringP("path", "p", cwd(), "Path to the project directory (Env: $FUNC_PATH)")
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}
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var runCmd = &cobra.Command{
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Use: "run",
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Short: "Run the function locally",
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Long: `Run the function locally
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Runs the function locally in the current directory or in the directory
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specified by --path flag. The function must already have been built with the 'build' command.
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`,
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Example: `
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# Build function's image first
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kn func build
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# Run it locally as a container
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kn func run
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`,
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SuggestFor: []string{"rnu"},
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PreRunE: bindEnv("path"),
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RunE: runRun,
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}
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func runRun(cmd *cobra.Command, args []string) (err error) {
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config, err := newRunConfig(cmd)
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if err != nil {
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return
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}
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function, err := fn.NewFunction(config.Path)
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if err != nil {
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return
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}
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function.Envs, err = mergeEnvs(function.Envs, config.EnvToUpdate, config.EnvToRemove)
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if err != nil {
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return
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}
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err = function.WriteConfig()
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if err != nil {
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return
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}
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// Check if the Function has been initialized
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if !function.Initialized() {
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return fmt.Errorf("the given path '%v' does not contain an initialized function", config.Path)
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}
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runner := docker.NewRunner()
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runner.Verbose = config.Verbose
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client := fn.New(
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fn.WithRunner(runner),
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fn.WithVerbose(config.Verbose))
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err = client.Run(cmd.Context(), config.Path)
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return
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}
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type runConfig struct {
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// Path of the Function implementation on local disk. Defaults to current
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// working directory of the process.
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Path string
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// Verbose logging.
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Verbose bool
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// Envs passed via cmd to be added/updated
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EnvToUpdate *util.OrderedMap
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// Envs passed via cmd to removed
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EnvToRemove []string
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}
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func newRunConfig(cmd *cobra.Command) (runConfig, error) {
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envToUpdate, envToRemove, err := envFromCmd(cmd)
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if err != nil {
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return runConfig{}, err
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}
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return runConfig{
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Path: viper.GetString("path"),
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Verbose: viper.GetBool("verbose"), // defined on root
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EnvToUpdate: envToUpdate,
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EnvToRemove: envToRemove,
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}, nil
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}
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