rework Clone()

This commit is contained in:
Jeff Carr 2024-11-17 14:42:49 -06:00
parent 2e8a1d4793
commit 9358005c9d
3 changed files with 270 additions and 184 deletions

1
README.md Normal file
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@ -0,0 +1 @@
This code is really hacky still

269
clone.go Normal file
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@ -0,0 +1,269 @@
package repostatus
import (
"errors"
"io/ioutil"
"net/http"
"os"
"path/filepath"
"strings"
"go.wit.com/lib/gui/shell"
"go.wit.com/log"
)
// guess the paths. returns
// realpath : the actual path on the filesystem
// goSrcPath : this could be ~/go/src, or where the go.work file is
// goPath : go.wit.com/lib/gui/repostatus (for example)
// true/false if the repo is a golang repo
func guessPaths(path string) (string, string, string, bool, error) {
var realpath, goSrcDir string
var isGoLang bool = false
homeDir, err := os.UserHomeDir()
if err != nil {
log.Log(WARN, "Error getting home directory:", err)
return path, realpath, goSrcDir, false, err
}
goSrcDir = filepath.Join(homeDir, "go/src")
// allow arbitrary paths, otherwise, assume the repo is in ~/go/src
// unless REPO_WORK_PATH was set. to over-ride ~/go/src
// todo, look for go.work
if os.Getenv("REPO_WORK_PATH") == "" {
os.Setenv("REPO_WORK_PATH", goSrcDir)
} else {
goSrcDir = os.Getenv("REPO_WORK_PATH")
}
// todo: this is dumb
if strings.HasPrefix(path, "/") {
realpath = path
} else if strings.HasPrefix(path, "~") {
tmp := strings.TrimPrefix(path, "~")
realpath = filepath.Join(homeDir, tmp)
} else {
realpath = filepath.Join(goSrcDir, path)
isGoLang = true
}
if os.Getenv("REPO_AUTO_CLONE") == "true" {
err := Clone(goSrcDir, path)
if err != nil {
// directory doesn't exist. exit with nil and error nil
return path, realpath, goSrcDir, false, errors.New("git clone")
}
}
if !IsDirectory(realpath) {
log.Log(REPOWARN, "directory doesn't exist", realpath)
// directory doesn't exist. exit with nil and error nil
return path, realpath, goSrcDir, false, errors.New(realpath + " does not exist")
}
filename := filepath.Join(realpath, ".git/config")
_, err = os.Open(filename)
if err != nil {
// log.Log(WARN, "Error reading .git/config:", filename, err)
// log.Log(WARN, "TODO: find .git/config in parent directory")
return path, realpath, goSrcDir, false, err
}
return path, realpath, goSrcDir, isGoLang, nil
}
// attempt to git clone if the go path doesn't exist
// wdir = /home/jcarr/go/src/
// path = go.wit.com/apps/helloworld
func Clone(wdir string, path string) error {
fullpath := filepath.Join(wdir, path)
if IsDirectory(fullpath) {
// directory already exists
return nil
}
err := os.Chdir(wdir)
if err != nil {
return err
}
fulldir := filepath.Join(wdir, filepath.Dir(path))
/*
base := filepath.Base(path)
os.MkdirAll(fulldir, 0750)
err = os.Chdir(fulldir)
if err != nil {
return err
}
*/
return CloneNew(fulldir, path)
/*
// TODO: this should go in a config file if needed
// todo: move this to a resources/ text file in go-clone
// go get golang.org/x/term
// is now supposed to be:
// git clone https://go.googlesource.com/term
// if url, err = findGoImport("http://" + path); err != nil {
switch path {
case "golang.org/x/crypto":
path = "go.googlesource.com/crypto"
case "golang.org/x/mod":
path = "go.googlesource.com/mod"
case "golang.org/x/net":
path = "go.googlesource.com/net"
case "golang.org/x/sys":
path = "go.googlesource.com/sys"
case "golang.org/x/sync":
path = "go.googlesource.com/sync"
case "golang.org/x/term":
path = "go.googlesource.com/term"
case "golang.org/x/text":
path = "go.googlesource.com/text"
case "golang.org/x/tools":
path = "go.googlesource.com/tools"
case "golang.org/x/xerrors":
path = "go.googlesource.com/xerrors"
}
*/
/*
var url string
// this creates a valid URL for git clone
if url, err = runGoList(path); err != nil {
return err
}
log.Info("URL:", url)
shell.PathRunRealtime(fulldir, []string{"git", "clone", url, base})
if IsDirectory(fullpath) {
// clone worked
return nil
}
return errors.New("resolve go import")
*/
}
// does a git clone, if it works, returns true
// workdir = /home/jcarr/go/src/
// gopath = go.wit.com/apps/helloworld
func CloneNew(workdir, gopath string) error {
fullpath := filepath.Join(workdir, gopath)
dirname := filepath.Base(fullpath)
basedir := strings.TrimSuffix(fullpath, dirname)
var err error
url := "http://" + gopath
log.Info("trying git clone")
log.Info("gopath =", gopath)
log.Info("dirname =", dirname)
log.Info("basedir =", basedir)
log.Info("url =", url)
// try a direct git clone against the gopath
// cloneActual("helloworld", "/home/jcarr/go/src/go.wit.com/apps", "http://go.wit.com/apps/helloworld")
if err = cloneActual(dirname, basedir, url); err == nil {
// git clone worked!
return nil
}
log.Info("direct attempt at git clone failed", url)
// query the golang package system for the last known location
// NOTE: take time to thank the go developers and google for designing this wonderful system
if url, err = runGoList(gopath); err != nil {
return err
}
if err := cloneActual(dirname, basedir, url); err == nil {
// git clone worked!
return nil
}
log.Info("direct attempt at git clone failed", url)
// try to parse a redirect
return errors.New("can not find git sources for gopath " + gopath)
}
// newdir = helloworld
// basedir = /home/jcarr/go/src/go.wit.com/apps
// giturl = https://gitea.wit.com/gui/helloworld
func cloneActual(newdir, basedir, giturl string) error {
if !IsDirectory(basedir) {
os.MkdirAll(basedir, 0750)
}
err := os.Chdir(basedir)
if err != nil {
log.Warn("chdir failed", basedir, err)
return err
}
r := shell.PathRunRealtime(basedir, []string{"git", "clone", "--verbose", "--progress", giturl})
if r.Error != nil {
log.Warn("git clone error", r.Error)
return r.Error
}
fullpath := filepath.Join(basedir, newdir)
if !IsDirectory(fullpath) {
log.Info("git clone failed", giturl)
return errors.New("git clone failed " + giturl)
}
gitdir := filepath.Join(fullpath, ".git")
if IsDirectory(gitdir) {
log.Info("git clone worked", gitdir)
return nil
}
// git clone didn't really work but did make a directory
log.Info("fullpath is probably empty", fullpath)
panic("crapnuts. rmdir fullpath here?")
}
// check the server for the current go path to git url mapping
// for example:
// This will check go.wit.com for "go.wit.com/apps/go-clone"
// and return where the URL to do git clone should be
func findGoImport(url string) (string, error) {
resp, err := http.Get(url)
if err != nil {
return "", err
}
defer resp.Body.Close()
bodyBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err
}
tmp := string(bodyBytes)
parts := strings.Split(tmp, "go-import")
if len(parts) < 2 {
return "", errors.New("missing go-import")
}
// this is terrible, it doesn't even look for 'content='
// but again, this is just a hack for my own code to be
// usuable after the removal in go v1.22 of the go get clone behavior that was in v1.21
parts = strings.Split(parts[1], "\"")
var newurl string
for {
if len(parts) == 0 {
break
}
tmp := strings.TrimSpace(parts[0])
fields := strings.Split(tmp, " ")
// log.Info("FIELDS:", fields)
if len(fields) == 3 {
newurl = fields[2]
break
}
parts = parts[1:]
}
if newurl == "" {
return "", errors.New("missing git content string")
}
return newurl, nil
}

184
new.go
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@ -1,15 +1,10 @@
package repostatus
import (
"errors"
"io/ioutil"
"net/http"
"os"
"path/filepath"
"strings"
"go.wit.com/lib/gadgets"
"go.wit.com/lib/gui/shell"
"go.wit.com/log"
)
@ -48,185 +43,6 @@ func SetWorkPath(path string) {
os.Setenv("REPO_WORK_PATH", path)
}
// guess the paths. returns
// realpath : the actual path on the filesystem
// goSrcPath : this could be ~/go/src, or where the go.work file is
// goPath : go.wit.com/lib/gui/repostatus (for example)
// true/false if the repo is a golang repo
func guessPaths(path string) (string, string, string, bool, error) {
var realpath, goSrcDir string
var isGoLang bool = false
homeDir, err := os.UserHomeDir()
if err != nil {
log.Log(WARN, "Error getting home directory:", err)
return path, realpath, goSrcDir, false, err
}
goSrcDir = filepath.Join(homeDir, "go/src")
// allow arbitrary paths, otherwise, assume the repo is in ~/go/src
// unless REPO_WORK_PATH was set. to over-ride ~/go/src
// todo, look for go.work
if os.Getenv("REPO_WORK_PATH") == "" {
os.Setenv("REPO_WORK_PATH", goSrcDir)
} else {
goSrcDir = os.Getenv("REPO_WORK_PATH")
}
if strings.HasPrefix(path, "/") {
realpath = path
} else if strings.HasPrefix(path, "~") {
tmp := strings.TrimPrefix(path, "~")
realpath = filepath.Join(homeDir, tmp)
} else {
realpath = filepath.Join(goSrcDir, path)
isGoLang = true
}
if os.Getenv("REPO_AUTO_CLONE") == "true" {
err := Clone(goSrcDir, path)
if err != nil {
// directory doesn't exist. exit with nil and error nil
return path, realpath, goSrcDir, false, errors.New("git clone")
}
}
if !IsDirectory(realpath) {
log.Log(REPOWARN, "directory doesn't exist", realpath)
// directory doesn't exist. exit with nil and error nil
return path, realpath, goSrcDir, false, errors.New(realpath + " does not exist")
}
filename := filepath.Join(realpath, ".git/config")
_, err = os.Open(filename)
if err != nil {
// log.Log(WARN, "Error reading .git/config:", filename, err)
// log.Log(WARN, "TODO: find .git/config in parent directory")
return path, realpath, goSrcDir, false, err
}
return path, realpath, goSrcDir, isGoLang, nil
}
// attempt to git clone if the go path doesn't exist
func Clone(wdir string, path string) error {
fullpath := filepath.Join(wdir, path)
if IsDirectory(fullpath) {
// directory already exists
return nil
}
err := os.Chdir(wdir)
if err != nil {
return err
}
fulldir := filepath.Join(wdir, filepath.Dir(path))
base := filepath.Base(path)
os.MkdirAll(fulldir, 0750)
err = os.Chdir(fulldir)
if err != nil {
return err
}
// TODO: attempt to work around things like:
// todo: move this to a resources/ text file in go-clone
// go get golang.org/x/term
// is now supposed to be:
// git clone https://go.googlesource.com/term
// if url, err = findGoImport("http://" + path); err != nil {
switch path {
case "golang.org/x/crypto":
path = "go.googlesource.com/crypto"
case "golang.org/x/mod":
path = "go.googlesource.com/mod"
case "golang.org/x/net":
path = "go.googlesource.com/net"
case "golang.org/x/sys":
path = "go.googlesource.com/sys"
case "golang.org/x/sync":
path = "go.googlesource.com/sync"
case "golang.org/x/term":
path = "go.googlesource.com/term"
case "golang.org/x/text":
path = "go.googlesource.com/text"
case "golang.org/x/tools":
path = "go.googlesource.com/tools"
case "golang.org/x/xerrors":
path = "go.googlesource.com/xerrors"
}
r := shell.PathRunRealtime(fulldir, []string{"git", "clone", "--verbose", "--progress", "http://" + path})
if r.Error != nil {
log.Warn("git clone error", r.Error)
log.Error(r.Error)
}
if IsDirectory(fullpath) {
// clone worked
return nil
}
var url string
// this creates a valid URL for git clone
if url, err = runGoList(path); err != nil {
return err
}
log.Info("URL:", url)
shell.PathRunRealtime(fulldir, []string{"git", "clone", url, base})
if IsDirectory(fullpath) {
// clone worked
return nil
}
return errors.New("resolve go import")
}
// this is a terrible hack and really
// shouldn't be here. Hopefully this can
// be removed and the GO compiler code can
// be involked directly (it appears to currently
// be an internal/ function in the GO sources
// so it can't be imported from outside the compiler
func findGoImport(url string) (string, error) {
resp, err := http.Get(url)
if err != nil {
return "", err
}
defer resp.Body.Close()
bodyBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err
}
tmp := string(bodyBytes)
parts := strings.Split(tmp, "go-import")
if len(parts) < 2 {
return "", errors.New("missing go-import")
}
// this is terrible, it doesn't even look for 'content='
// but again, this is just a hack for my own code to be
// usuable after the removal in go v1.22 of the go get clone behavior that was in v1.21
parts = strings.Split(parts[1], "\"")
var newurl string
for {
if len(parts) == 0 {
break
}
tmp := strings.TrimSpace(parts[0])
fields := strings.Split(tmp, " ")
// log.Info("FIELDS:", fields)
if len(fields) == 3 {
newurl = fields[2]
break
}
parts = parts[1:]
}
if newurl == "" {
return "", errors.New("missing git content string")
}
return newurl, nil
}
func NewRepoStatusWindow(path string) (error, *RepoStatus) {
path, realpath, goSrcDir, isGoLang, err := guessPaths(path)
if err != nil {