horizoncd/horizon

// Copyright © 2019 The Tekton Authors.
//
// 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.
 
// fork from https://github.com/tektoncd/cli/blob/v0.13.1/pkg/log/reader.go
 
package log
 
import (
    "fmt"
 
    herrors "github.com/horizoncd/horizon/core/errors"
    perror "github.com/horizoncd/horizon/pkg/errors"
    "github.com/tektoncd/cli/pkg/cli"
    "github.com/tektoncd/cli/pkg/options"
    "github.com/tektoncd/cli/pkg/pods"
    "github.com/tektoncd/cli/pkg/pods/stream"
)
 
type Reader struct {
    run      string
    ns       string
    clients  *cli.Clients
    streamer stream.NewStreamerFunc
    allSteps bool
    tasks    []string
    steps    []string
    logType  string
    task     string
    number   int
}
 
func NewReader(logType string, opts *options.LogOptions) (*Reader, error) {
    streamer := pods.NewStream
    if opts.Streamer != nil {
        streamer = opts.Streamer
    }
 
    cs, err := opts.Params.Clients()
    if err != nil {
        return nil, perror.Wrap(herrors.ErrParamInvalid, err.Error())
    }
 
    var run string
    switch logType {
    case LogTypePipeline:
        run = opts.PipelineRunName
    case LogTypeTask:
        run = opts.TaskrunName
    }
 
    return &Reader{
        run:      run,
        ns:       opts.Params.Namespace(),
        clients:  cs,
        streamer: streamer,
        allSteps: opts.AllSteps,
        tasks:    opts.Tasks,
        steps:    opts.Steps,
        logType:  logType,
    }, nil
}
 
func (r *Reader) Read() (<-chan Log, <-chan error, error) {
    switch r.logType {
    case LogTypePipeline:
        return r.readPipelineLog()
    case LogTypeTask:
        return r.readTaskLog()
    }
    return nil, nil, fmt.Errorf("unknown log type")
}
 
func (r *Reader) setNumber(number int) {
    r.number = number
}
 
func (r *Reader) setRun(run string) {
    r.run = run
}
 
func (r *Reader) setTask(task string) {
    r.task = task
}
 
func (r *Reader) clone() *Reader {
    c := *r
    return &c
}