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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See License.txt in the project root for license information.
package cmd
import (
"encoding/json"
"errors"
"fmt"
"os"
"path/filepath"
"strings"
"time"
"github.com/Azure/azure-sdk-for-go/eng/tools/internal/ioext"
"github.com/Azure/azure-sdk-for-go/eng/tools/internal/repo"
"github.com/Azure/azure-sdk-for-go/eng/tools/internal/report"
)
func printf(format string, a ...interface{}) {
if !quietFlag {
fmt.Printf(format, a...)
}
}
func println(a ...interface{}) {
if !quietFlag {
fmt.Println(a...)
}
}
func dprintf(format string, a ...interface{}) {
if debugFlag {
printf(format, a...)
}
}
func dprintln(a ...interface{}) {
if debugFlag {
println(a...)
}
}
func vprintf(format string, a ...interface{}) {
if verboseFlag {
printf(format, a...)
}
}
func vprintln(a ...interface{}) {
if verboseFlag {
println(a...)
}
}
func processArgsAndClone(args []string) (cln repo.WorkingTree, err error) {
if onlyAdditiveChangesFlag && onlyBreakingChangesFlag {
err = errors.New("flags 'additions' and 'breakingchanges' are mutually exclusive")
return
}
// there should be at minimum two args, a directory and a
// sequence of commits, i.e. "d:\foo 1,2,3". else a directory
// and two commits, i.e. "d:\foo 1 2" or "d:\foo 1 2,3"
if len(args) < 2 {
err = errors.New("not enough args were supplied")
return
}
// here args[1] should be a comma-delimited list of commits
if len(args) == 2 && strings.Index(args[1], ",") < 0 {
err = errors.New("expected a comma-delimited list of commits")
return
}
dir := args[0]
dir, err = filepath.Abs(dir)
if err != nil {
err = fmt.Errorf("failed to convert path '%s' to absolute path: %v", dir, err)
return
}
src, err := repo.Get(dir)
if err != nil {
err = fmt.Errorf("failed to get repository: %v", err)
return
}
tempRepoDir := filepath.Join(os.TempDir(), fmt.Sprintf("apidiff-%v", time.Now().Unix()))
if copyRepoFlag {
vprintf("copying '%s' into '%s'...\n", src.Root(), tempRepoDir)
err = ioext.CopyDir(src.Root(), tempRepoDir)
if err != nil {
err = fmt.Errorf("failed to copy repo: %v", err)
return
}
cln, err = repo.Get(tempRepoDir)
if err != nil {
err = fmt.Errorf("failed to get copied repo: %v", err)
return
}
} else {
vprintf("cloning '%s' into '%s'...\n", src.Root(), tempRepoDir)
cln, err = src.Clone(tempRepoDir)
if err != nil {
err = fmt.Errorf("failed to clone repository: %v", err)
return
}
}
// fix up pkgDir to the clone
args[0] = strings.Replace(dir, src.Root(), cln.Root(), 1)
return
}
type reportGenFunc func(dir string, cln repo.WorkingTree, baseCommit, targetCommit string) error
func generateReports(args []string, cln repo.WorkingTree, fn reportGenFunc) error {
defer func() {
// delete clone
vprintln("cleaning up clone")
err := os.RemoveAll(cln.Root())
if err != nil {
vprintf("failed to delete temp repo: %v\n", err)
}
}()
var commits []string
// if the commits are specified as 1 2,3,4 then it means that commit 1 is
// always the base commit and to compare it against each target commit in
// the sequence. however if it's specifed as 1,2,3,4 then the base commit
// is relative to the iteration, i.e. compare 1-2, 2-3, 3-4.
fixedBase := true
if len(args) == 3 {
commits = make([]string, 2, 2)
commits[0] = args[1]
commits[1] = args[2]
} else {
commits = strings.Split(args[1], ",")
fixedBase = false
}
for i := 0; i+1 < len(commits); i++ {
baseCommit := commits[i]
if fixedBase {
baseCommit = commits[0]
}
targetCommit := commits[i+1]
err := fn(args[0], cln, baseCommit, targetCommit)
if err != nil {
return err
}
}
return nil
}
// compares report status with the desired report options (breaking/additions)
// to determine if the program should terminate with a non-zero exit code.
func evalReportStatus(r report.Status) {
if onlyBreakingChangesFlag && r.HasBreakingChanges() {
os.Exit(1)
}
if onlyAdditiveChangesFlag && !r.HasAdditiveChanges() {
os.Exit(1)
}
}
// PrintReport prints the report to stdout
func PrintReport(r report.Status) error {
if r.IsEmpty() {
println("no changes were found")
return nil
}
if !suppressReport {
b, err := json.MarshalIndent(r, "", " ")
if err != nil {
return fmt.Errorf("failed to marshal report: %v", err)
}
println(string(b))
}
return nil
}
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