/
amalgomated_helpers.go
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/
amalgomated_helpers.go
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// Copyright 2016 Palantir Technologies, 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.
package checker
import (
"fmt"
"io"
"os"
"os/exec"
"github.com/palantir/amalgomate/amalgomated"
"github.com/palantir/godel/v2/framework/pluginapi"
"github.com/palantir/okgo/okgo"
"github.com/pkg/errors"
)
type AmalgomatedCheckerParam interface {
apply(c *amalgomatedChecker)
}
type paramFunc func(*amalgomatedChecker)
func (f paramFunc) apply(c *amalgomatedChecker) {
f(c)
}
func ParamPriority(priority okgo.CheckerPriority) AmalgomatedCheckerParam {
return paramFunc(func(c *amalgomatedChecker) {
c.priority = priority
})
}
func ParamMultiCPU(multiCPU okgo.CheckerMultiCPU) AmalgomatedCheckerParam {
return paramFunc(func(c *amalgomatedChecker) {
c.multiCPU = multiCPU
})
}
func ParamLineParserWithWd(lineParserWithWd func(line, wd string) okgo.Issue) AmalgomatedCheckerParam {
return paramFunc(func(c *amalgomatedChecker) {
c.lineParserWithWd = lineParserWithWd
})
}
func ParamIncludeProjectDirFlag() AmalgomatedCheckerParam {
return paramFunc(func(c *amalgomatedChecker) {
c.includeProjectDirFlag = true
})
}
func ParamArgs(args ...string) AmalgomatedCheckerParam {
return paramFunc(func(c *amalgomatedChecker) {
c.args = args
})
}
func NewAmalgomatedChecker(typeName okgo.CheckerType, params ...AmalgomatedCheckerParam) okgo.Checker {
checker := &amalgomatedChecker{
typeName: typeName,
lineParserWithWd: okgo.NewIssueFromLine,
}
for _, p := range params {
if p == nil {
continue
}
p.apply(checker)
}
return checker
}
type amalgomatedChecker struct {
typeName okgo.CheckerType
priority okgo.CheckerPriority
multiCPU okgo.CheckerMultiCPU
lineParserWithWd func(line, wd string) okgo.Issue
includeProjectDirFlag bool
args []string
}
func (c *amalgomatedChecker) Type() (okgo.CheckerType, error) {
return c.typeName, nil
}
func (c *amalgomatedChecker) Priority() (okgo.CheckerPriority, error) {
return c.priority, nil
}
func (c *amalgomatedChecker) MultiCPU() (okgo.CheckerMultiCPU, error) {
return c.multiCPU, nil
}
func (c *amalgomatedChecker) Check(pkgPaths []string, projectDir string, stdout io.Writer) {
var args []string
if c.includeProjectDirFlag {
args = append(args, "--"+pluginapi.ProjectDirFlagName, projectDir)
}
args = append(args, c.args...)
args = append(args, pkgPaths...)
cmd, wd := AmalgomatedCheckCmd(string(c.typeName), args, stdout)
if cmd == nil {
return
}
RunCommandAndStreamOutput(cmd, func(line string) okgo.Issue {
return c.lineParserWithWd(line, wd)
}, stdout)
}
func (c *amalgomatedChecker) RunCheckCmd(args []string, stdout io.Writer) {
AmalgomatedRunRawCheck(string(c.typeName), args, stdout)
}
func AmalgomatedCheckCmd(amalgomatedCmdName string, args []string, stdout io.Writer) (*exec.Cmd, string) {
pathToSelf, err := os.Executable()
if err != nil {
okgo.WriteErrorAsIssue(errors.Wrapf(err, "failed to determine path to executable"), stdout)
return nil, ""
}
wd, err := os.Getwd()
if err != nil {
okgo.WriteErrorAsIssue(errors.Wrapf(err, "failed to determine working directory"), stdout)
return nil, ""
}
return exec.Command(pathToSelf, append([]string{amalgomated.ProxyCmdPrefix + amalgomatedCmdName}, args...)...), wd
}
func AmalgomatedRunRawCheck(amalgomatedCmdName string, args []string, stdout io.Writer) {
cmd, _ := AmalgomatedCheckCmd(amalgomatedCmdName, args, stdout)
if cmd == nil {
return
}
cmd.Stdout = stdout
cmd.Stderr = stdout
if err := cmd.Run(); err != nil {
if _, ok := err.(*exec.ExitError); !ok {
_, _ = fmt.Fprintf(stdout, "command %v failed with error %v\n", cmd.Args, err)
}
}
}