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woodpecker/plugin/deploy/ssh.go
2014-10-28 20:59:13 -07:00

106 lines
2.9 KiB
Go

package deploy
import (
"fmt"
"strconv"
"strings"
"github.com/drone/drone/plugin/condition"
"github.com/drone/drone/shared/build/buildfile"
)
// SSH struct holds configuration data for deployment
// via ssh, deployment done by scp-ing file(s) listed
// in artifacts to the target host, and then run cmd
// remotely.
// It is assumed that the target host already
// add this repo public key in the host's `authorized_hosts`
// file. And the private key is already copied to `.ssh/id_rsa`
// inside the build container. No further check will be done.
type SSH struct {
// Target is the deployment host in this format
// user@hostname:/full/path <PORT>
//
// PORT may be omitted if its default to port 22.
Target string `yaml:"target,omitempty"`
// Artifacts is a list of files/dirs to be deployed
// to the target host. If artifacts list more than one file
// it will be compressed into a single tar.gz file.
// if artifacts contain:
// - GITARCHIVE
//
// other file listed in artifacts will be ignored, instead, we will
// create git archive from the current revision and deploy that file
// alone.
// If you need to deploy the git archive along with some other files,
// please use build script to create the git archive, and then list
// the archive name here with the other files.
Artifacts []string `yaml:"artifacts,omitempty"`
// Cmd is a single command executed at target host after the artifacts
// is deployed.
Cmd string `yaml:"cmd,omitempty"`
Condition *condition.Condition `yaml:"when,omitempty"`
}
// Write down the buildfile
func (s *SSH) Write(f *buildfile.Buildfile) {
host := strings.SplitN(s.Target, " ", 2)
if len(host) == 1 {
host = append(host, "22")
}
if _, err := strconv.Atoi(host[1]); err != nil {
host[1] = "22"
}
// Is artifact created?
artifact := false
for _, a := range s.Artifacts {
if a == "GITARCHIVE" {
artifact = createGitArchive(f)
break
}
}
if !artifact {
if len(s.Artifacts) > 1 {
artifact = compress(f, s.Artifacts)
} else if len(s.Artifacts) == 1 {
f.WriteEnv("ARTIFACT", s.Artifacts[0])
artifact = true
}
}
if artifact {
scpCmd := "scp -o StrictHostKeyChecking=no -P %s -r ${ARTIFACT} %s"
f.WriteCmd(fmt.Sprintf(scpCmd, host[1], host[0]))
}
if len(s.Cmd) > 0 {
sshCmd := "ssh -o StrictHostKeyChecking=no -p %s %s %q"
f.WriteCmd(fmt.Sprintf(sshCmd, host[1], strings.SplitN(host[0], ":", 2)[0], s.Cmd))
}
}
func createGitArchive(f *buildfile.Buildfile) bool {
f.WriteEnv("COMMIT", "$(git rev-parse HEAD)")
f.WriteEnv("ARTIFACT", "${PWD##*/}-${COMMIT}.tar.gz")
f.WriteCmdSilent("git archive --format=tar.gz --prefix=${PWD##*/}/ ${COMMIT} > ${ARTIFACT}")
return true
}
func compress(f *buildfile.Buildfile, files []string) bool {
cmd := "tar -cf ${ARTIFACT} %s"
f.WriteEnv("ARTIFACT", "${PWD##*/}.tar.gz")
f.WriteCmdSilent(fmt.Sprintf(cmd, strings.Join(files, " ")))
return true
}
func (s *SSH) GetCondition() *condition.Condition {
return s.Condition
}