drone-yaml/yaml/compiler/script_posix.go

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2019-02-10 19:00:16 +00:00
// Copyright 2019 Drone IO, 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.
2019-01-22 23:44:17 +00:00
package compiler
import (
"bytes"
"fmt"
"strings"
"github.com/drone/drone-runtime/engine"
"github.com/drone/drone-yaml/yaml"
"github.com/drone/drone-yaml/yaml/compiler/internal/rand"
)
func setupScript(spec *engine.Spec, dst *engine.Step, src *yaml.Container) {
var buf bytes.Buffer
for _, command := range src.Commands {
escaped := fmt.Sprintf("%q", command)
escaped = strings.Replace(escaped, "$", `\$`, -1)
buf.WriteString(fmt.Sprintf(
traceScript,
escaped,
command,
))
}
script := fmt.Sprintf(
buildScript,
buf.String(),
)
spec.Files = append(spec.Files, &engine.File{
Metadata: engine.Metadata{
UID: rand.String(),
Namespace: spec.Metadata.Namespace,
Name: src.Name,
},
Data: []byte(script),
})
dst.Files = append(dst.Files, &engine.FileMount{
Name: src.Name,
Path: "/usr/drone/bin/init",
Mode: 0777,
})
dst.Docker.Command = []string{"/bin/sh"}
dst.Docker.Args = []string{"/usr/drone/bin/init"}
}
// buildScript is a helper script this is added to the build
// to prepare the environment and execute the build commands.
const buildScript = `
if [ -n "$CI_NETRC_MACHINE" ]; then
cat <<EOF > $HOME/.netrc
machine $CI_NETRC_MACHINE
login $CI_NETRC_USERNAME
password $CI_NETRC_PASSWORD
EOF
chmod 0600 $HOME/.netrc
fi
unset CI_NETRC_USERNAME
unset CI_NETRC_PASSWORD
unset DRONE_NETRC_USERNAME
unset DRONE_NETRC_PASSWORD
set -e
%s
`
// traceScript is a helper script that is added to
// the build script to trace a command.
const traceScript = `
echo + %s
%s
`