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slack_client.go
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slack_client.go
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// Copyright 2017 HootSuite Media Inc.
//
// 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.
// Modified hereafter by contributors to runatlantis/atlantis.
//
package webhooks
import (
"fmt"
"github.com/nlopes/slack"
)
const (
slackSuccessColour = "good"
slackFailureColour = "danger"
)
//go:generate pegomock generate -m --use-experimental-model-gen --package mocks -o mocks/mock_slack_client.go SlackClient
// SlackClient handles making API calls to Slack.
type SlackClient interface {
AuthTest() error
TokenIsSet() bool
ChannelExists(channelName string) (bool, error)
PostMessage(channel string, applyResult ApplyResult) error
}
//go:generate pegomock generate -m --use-experimental-model-gen --package mocks -o mocks/mock_underlying_slack_client.go UnderlyingSlackClient
// UnderlyingSlackClient wraps the nlopes/slack.Client implementation so
// we can mock it during tests.
type UnderlyingSlackClient interface {
AuthTest() (response *slack.AuthTestResponse, error error)
GetChannels(excludeArchived bool) ([]slack.Channel, error)
PostMessage(channel, text string, parameters slack.PostMessageParameters) (string, string, error)
}
type DefaultSlackClient struct {
Slack UnderlyingSlackClient
Token string
}
func NewSlackClient(token string) SlackClient {
return &DefaultSlackClient{
Slack: slack.New(token),
Token: token,
}
}
func (d *DefaultSlackClient) AuthTest() error {
_, err := d.Slack.AuthTest()
return err
}
func (d *DefaultSlackClient) TokenIsSet() bool {
return d.Token != ""
}
func (d *DefaultSlackClient) ChannelExists(channelName string) (bool, error) {
channels, err := d.Slack.GetChannels(true)
if err != nil {
return false, err
}
for _, channel := range channels {
if channel.Name == channelName {
return true, nil
}
}
return false, nil
}
func (d *DefaultSlackClient) PostMessage(channel string, applyResult ApplyResult) error {
params := slack.NewPostMessageParameters()
params.Attachments = d.createAttachments(applyResult)
params.EscapeText = false
_, _, err := d.Slack.PostMessage(channel, "", params)
return err
}
func (d *DefaultSlackClient) createAttachments(applyResult ApplyResult) []slack.Attachment {
var colour string
var successWord string
if applyResult.Success {
colour = slackSuccessColour
successWord = "succeeded"
} else {
colour = slackFailureColour
successWord = "failed"
}
text := fmt.Sprintf("Apply %s for <%s|%s>", successWord, applyResult.Pull.URL, applyResult.Repo.FullName)
attachment := slack.Attachment{
Color: colour,
Text: text,
Fields: []slack.AttachmentField{
{
Title: "Workspace",
Value: applyResult.Workspace,
Short: true,
},
{
Title: "User",
Value: applyResult.User.Username,
Short: true,
},
},
}
return []slack.Attachment{attachment}
}