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main.go
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package main
import (
"crypto/tls"
"fmt"
"log"
"net/http"
"os"
"strconv"
"strings"
"github.com/kovetskiy/godocs"
)
const (
version = `manul 1.4`
usage = version + `
manul is the tool for vendoring dependencies using git submodule technology.
Usage:
manul [options] -I [<dependency>...]
manul [options] -U [<dependency>...]
manul [options] -R [<dependency>...]
manul [options] -Q [-o]
manul [options] -C
manul -h
manul --version
Options:
-I --install Detect all dependencies and add git submodule into vendor directory.
If you don't specify any dependency, manul will
install all detected dependencies.
-U --update Update specified already-vendored dependencies.
If you don't specify any vendored dependency, manul will
update all already-vendored dependencies.
-R --remove Stop vendoring of specified dependencies.
If you don't specify any dependency, manul will
remove all vendored dependencies.
-Q --query List all dependencies.
-o List only already-vendored dependencies.
-C --clean Detect all unused vendored dependencies and remove it.
-r --recursive Be recursive.
-h --help Show help message.
-v --verbose Be verbose.
--version Show version.
`
)
var (
verbose bool
inTests bool
)
func init() {
newArgs := make([]string, 0, len(os.Args))
for _, arg := range os.Args {
if arg == "--integration-test" {
inTests = true
} else if arg == "--insecure-skip-verify" {
http.DefaultClient.Transport = &http.Transport{
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
}
} else {
newArgs = append(newArgs, arg)
}
}
os.Args = newArgs
}
func main() {
args := godocs.MustParse(usage, version)
var (
modeInstall = args["--install"].(bool)
modeUpdate = args["--update"].(bool)
modeRemove = args["--remove"].(bool)
modeQuery = args["--query"].(bool)
modeClean = args["--clean"].(bool)
dependencies, _ = args["<dependency>"].([]string)
recursive = args["--recursive"].(bool)
)
verbose = args["--verbose"].(bool)
var err error
switch {
case modeInstall:
err = handleInstall(recursive, dependencies)
case modeUpdate:
err = handleUpdate(recursive, dependencies)
case modeQuery:
onlyVendored := args["-o"].(bool)
err = handleQuery(recursive, onlyVendored)
case modeRemove:
err = handleRemove(dependencies)
case modeClean:
err = handleClean(recursive)
}
if err != nil {
log.Fatal(err)
}
}
func handleInstall(recursive bool, dependencies []string) error {
imports, err := parseImports(recursive)
if err != nil {
return err
}
installAll := len(dependencies) == 0
if installAll {
dependencies = imports
}
submodules, err := getVendorSubmodules()
if err != nil {
return err
}
added := 0
for _, dependency := range dependencies {
if !installAll {
found := false
for _, importpath := range imports {
// there is HasPrefix for handling subpackages
if strings.HasPrefix(importpath, dependency) {
found = true
break
}
}
if !found {
return fmt.Errorf("unknown dependency %s", dependency)
}
}
vendored := false
for submodule := range submodules {
if dependency == submodule {
vendored = true
break
}
}
if vendored {
log.Printf("skipping %s, already vendored", dependency)
continue
}
log.Printf("adding submodule for %s", dependency)
err := addVendorSubmodule(dependency)
if err != nil {
return err
}
added++
}
if added > 0 {
if added == 1 {
fmt.Println("added 1 submodule")
} else {
fmt.Printf("added %d submodules\n", added)
}
} else {
fmt.Printf("all dependencies already vendored\n")
}
return nil
}
func handleUpdate(recursive bool, dependencies []string) error {
var err error
if len(dependencies) == 0 {
dependencies, err = parseImports(recursive)
if err != nil {
return err
}
}
submodules, err := getVendorSubmodules()
if err != nil {
return err
}
updated := 0
for _, importpath := range dependencies {
if _, ok := submodules[importpath]; !ok {
return fmt.Errorf("unknown dependency %s", importpath)
}
log.Printf("updating dependency %s", importpath)
err := updateVendorSubmodule(importpath)
if err != nil {
return err
}
updated++
}
if updated > 0 {
if updated == 1 {
fmt.Println("updated 1 dependency")
} else {
fmt.Printf("updated %d dependencies\n", updated)
}
} else {
fmt.Printf("nothing to update\n")
}
return nil
}
func handleRemove(dependencies []string) error {
submodules, err := getVendorSubmodules()
if err != nil {
return err
}
removeAll := len(dependencies) == 0
if removeAll {
dependencies = getKeys(submodules)
}
for _, dependency := range dependencies {
if !removeAll {
_, found := submodules[dependency]
if !found {
return fmt.Errorf("unknown dependency %s", dependency)
}
}
log.Printf("removing vendor %s", dependency)
err := removeVendorSubmodule(dependency)
if err != nil {
return err
}
}
return nil
}
func handleQuery(recursive, onlyVendored bool) error {
submodules, err := getVendorSubmodules()
if err != nil {
return err
}
if onlyVendored {
maxlength := getMaxLength(getKeys(submodules))
format := "%-" + strconv.Itoa(maxlength) + "s %s\n"
for submodule, commit := range submodules {
fmt.Printf(format, submodule, commit)
}
} else {
imports, err := parseImports(recursive)
if err != nil {
return err
}
maxlength := 0
if len(submodules) > 0 {
maxlength = getMaxLength(
append(getKeys(submodules), imports...),
)
}
vendoredFormat := "%-" + strconv.Itoa(maxlength) + "s %s\n"
for _, importpath := range imports {
commit, vendored := submodules[importpath]
if vendored {
fmt.Printf(vendoredFormat, importpath, commit)
} else {
fmt.Println(importpath)
}
}
}
return nil
}
func handleClean(recursive bool) error {
imports, err := parseImports(recursive)
if err != nil {
return err
}
submodules, err := getVendorSubmodules()
if err != nil {
return err
}
removed := 0
for submodule := range submodules {
found := false
for _, importpath := range imports {
if importpath == submodule {
found = true
break
}
}
if found {
continue
}
log.Printf("removing unused vendor %s", submodule)
err := removeVendorSubmodule(submodule)
if err != nil {
return err
}
removed++
}
if removed > 0 {
if removed == 1 {
fmt.Println("removed 1 unused vendor")
} else {
fmt.Printf("removed %d unused vendors\n", removed)
}
} else {
fmt.Printf("nothing to remove\n")
}
return nil
}