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logs.go
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logs.go
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// Copyright © 2021 Kaleido, Inc.
//
// SPDX-License-Identifier: Apache-2.0
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cmd
import (
"context"
"fmt"
"github.com/hyperledger/firefly-cli/internal/docker"
"github.com/hyperledger/firefly-cli/internal/log"
"github.com/hyperledger/firefly-cli/internal/stacks"
"github.com/spf13/cobra"
)
var follow bool
// logsCmd represents the logs command
var logsCmd = &cobra.Command{
Use: "logs <stack_name>",
Short: "View log output from a stack",
Long: `View log output from a stack.
The most recent logs can be viewed, or you can follow the
output with the -f flag.`,
RunE: func(cmd *cobra.Command, args []string) error {
ctx := log.WithVerbosity(context.Background(), verbose)
ctx = context.WithValue(ctx, docker.CtxIsLogCmdKey{}, true)
ctx = log.WithLogger(ctx, logger)
version, err := docker.CheckDockerConfig()
if err != nil {
return err
}
ctx = context.WithValue(ctx, docker.CtxComposeVersionKey{}, version)
stackManager := stacks.NewStackManager(ctx)
if len(args) == 0 {
return fmt.Errorf("no stack specified")
}
stackName := args[0]
if err := stackManager.LoadStack(stackName); err != nil {
return err
}
stackHasRunBefore, err := stackManager.Stack.HasRunBefore()
if err != nil {
return err
}
if stackHasRunBefore {
fmt.Println("getting logs... ")
commandLine := []string{}
if fancyFeatures {
commandLine = append(commandLine, "--ansi", "always")
}
commandLine = append(commandLine, "-p", stackName, "logs")
if follow {
commandLine = append(commandLine, "-f")
}
docker.RunDockerComposeCommand(ctx, stackManager.Stack.RuntimeDir, commandLine...)
} else {
fmt.Println("no logs found - stack has not been started")
}
return nil
},
}
func init() {
rootCmd.AddCommand(logsCmd)
logsCmd.Flags().BoolVarP(&follow, "follow", "f", false, "follow log output")
}