c4bbd3724e
Mainly required to avoid cyclical dependencies when separating other things
187 lines
4.0 KiB
Go
187 lines
4.0 KiB
Go
package commands
|
|
|
|
import (
|
|
"bufio"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/github/git-lfs/config"
|
|
"github.com/github/git-lfs/git"
|
|
|
|
"github.com/github/git-lfs/lfs"
|
|
"github.com/github/git-lfs/vendor/_nuts/github.com/spf13/cobra"
|
|
)
|
|
|
|
var (
|
|
trackCmd = &cobra.Command{
|
|
Use: "track",
|
|
Run: trackCommand,
|
|
}
|
|
)
|
|
|
|
func trackCommand(cmd *cobra.Command, args []string) {
|
|
if config.LocalGitDir == "" {
|
|
Print("Not a git repository.")
|
|
os.Exit(128)
|
|
}
|
|
|
|
if config.LocalWorkingDir == "" {
|
|
Print("This operation must be run in a work tree.")
|
|
os.Exit(128)
|
|
}
|
|
|
|
lfs.InstallHooks(false)
|
|
knownPaths := findPaths()
|
|
|
|
if len(args) == 0 {
|
|
Print("Listing tracked paths")
|
|
for _, t := range knownPaths {
|
|
Print(" %s (%s)", t.Path, t.Source)
|
|
}
|
|
return
|
|
}
|
|
|
|
addTrailingLinebreak := needsTrailingLinebreak(".gitattributes")
|
|
attributesFile, err := os.OpenFile(".gitattributes", os.O_RDWR|os.O_APPEND|os.O_CREATE, 0660)
|
|
if err != nil {
|
|
Print("Error opening .gitattributes file")
|
|
return
|
|
}
|
|
defer attributesFile.Close()
|
|
|
|
if addTrailingLinebreak {
|
|
if _, err := attributesFile.WriteString("\n"); err != nil {
|
|
Print("Error writing to .gitattributes")
|
|
}
|
|
}
|
|
|
|
wd, _ := os.Getwd()
|
|
relpath, err := filepath.Rel(config.LocalWorkingDir, wd)
|
|
if err != nil {
|
|
Exit("Current directory %q outside of git working directory %q.", wd, config.LocalWorkingDir)
|
|
}
|
|
|
|
ArgsLoop:
|
|
for _, pattern := range args {
|
|
for _, known := range knownPaths {
|
|
if known.Path == filepath.Join(relpath, pattern) {
|
|
Print("%s already supported", pattern)
|
|
continue ArgsLoop
|
|
}
|
|
}
|
|
|
|
encodedArg := strings.Replace(pattern, " ", "[[:space:]]", -1)
|
|
_, err := attributesFile.WriteString(fmt.Sprintf("%s filter=lfs diff=lfs merge=lfs -text\n", encodedArg))
|
|
if err != nil {
|
|
Print("Error adding path %s", pattern)
|
|
continue
|
|
}
|
|
Print("Tracking %s", pattern)
|
|
|
|
// Make sure any existing git tracked files have their timestamp updated
|
|
// so they will now show as modifed
|
|
// note this is relative to current dir which is how we write .gitattributes
|
|
// deliberately not done in parallel as a chan because we'll be marking modified
|
|
gittracked, err := git.GetTrackedFiles(pattern)
|
|
if err != nil {
|
|
LoggedError(err, "Error getting git tracked files")
|
|
continue
|
|
}
|
|
now := time.Now()
|
|
for _, f := range gittracked {
|
|
err := os.Chtimes(f, now, now)
|
|
if err != nil {
|
|
LoggedError(err, "Error marking %q modified", f)
|
|
continue
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
type mediaPath struct {
|
|
Path string
|
|
Source string
|
|
}
|
|
|
|
func findPaths() []mediaPath {
|
|
paths := make([]mediaPath, 0)
|
|
|
|
for _, path := range findAttributeFiles() {
|
|
attributes, err := os.Open(path)
|
|
if err != nil {
|
|
continue
|
|
}
|
|
|
|
scanner := bufio.NewScanner(attributes)
|
|
|
|
for scanner.Scan() {
|
|
line := scanner.Text()
|
|
if strings.Contains(line, "filter=lfs") {
|
|
fields := strings.Fields(line)
|
|
relfile, _ := filepath.Rel(config.LocalWorkingDir, path)
|
|
pattern := fields[0]
|
|
if reldir := filepath.Dir(relfile); len(reldir) > 0 {
|
|
pattern = filepath.Join(reldir, pattern)
|
|
}
|
|
|
|
paths = append(paths, mediaPath{Path: pattern, Source: relfile})
|
|
}
|
|
}
|
|
}
|
|
|
|
return paths
|
|
}
|
|
|
|
func findAttributeFiles() []string {
|
|
paths := make([]string, 0)
|
|
|
|
repoAttributes := filepath.Join(config.LocalGitDir, "info", "attributes")
|
|
if info, err := os.Stat(repoAttributes); err == nil && !info.IsDir() {
|
|
paths = append(paths, repoAttributes)
|
|
}
|
|
|
|
filepath.Walk(config.LocalWorkingDir, func(path string, info os.FileInfo, err error) error {
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if !info.IsDir() && (filepath.Base(path) == ".gitattributes") {
|
|
paths = append(paths, path)
|
|
}
|
|
return nil
|
|
})
|
|
|
|
return paths
|
|
}
|
|
|
|
func needsTrailingLinebreak(filename string) bool {
|
|
file, err := os.Open(filename)
|
|
if err != nil {
|
|
return false
|
|
}
|
|
defer file.Close()
|
|
|
|
buf := make([]byte, 16384)
|
|
bytesRead := 0
|
|
for {
|
|
n, err := file.Read(buf)
|
|
if err == io.EOF {
|
|
break
|
|
} else if err != nil {
|
|
return false
|
|
}
|
|
bytesRead = n
|
|
}
|
|
|
|
return !strings.HasSuffix(string(buf[0:bytesRead]), "\n")
|
|
}
|
|
|
|
func init() {
|
|
RootCmd.AddCommand(trackCmd)
|
|
}
|