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package commands
import (
"bufio"
"os"
"github.com/git-lfs/git-lfs/v3/errors"
"github.com/git-lfs/git-lfs/v3/git"
"github.com/git-lfs/git-lfs/v3/lfs"
"github.com/git-lfs/git-lfs/v3/tq"
"github.com/git-lfs/git-lfs/v3/tr"
"github.com/rubyist/tracerx"
"github.com/spf13/cobra"
)
var (
pushDryRun = false
pushObjectIDs = false
pushAll = false
useStdin = false
// shares some global vars and functions with command_pre_push.go
)
// pushCommand pushes local objects to a Git LFS server. It has four forms:
//
// `<remote> <ref>...`
// `<remote> --stdin` (reads refs from stdin)
// `<remote> --object-id <oid>...`
// `<remote> --object-id --stdin` (reads oids from stdin)
//
// Remote must be a remote name, not a URL. With --stdin, values are newline
// separated.
//
// pushCommand calculates the git objects to send by comparing the range
// of commits between the local and remote git servers.
func pushCommand(cmd *cobra.Command, args []string) {
if len(args) == 0 {
Print(tr.Tr.Get("Specify a remote and a remote branch name (`git lfs push origin main`)"))
os.Exit(1)
}
requireGitVersion()
// Remote is first arg
if err := cfg.SetValidPushRemote(args[0]); err != nil {
Exit(tr.Tr.Get("Invalid remote name %q: %s", args[0], err))
}
ctx := newUploadContext(pushDryRun)
var argList []string
if useStdin {
if len(args) > 1 {
Print(tr.Tr.Get("Further command line arguments are ignored with --stdin"))
os.Exit(1)
}
scanner := bufio.NewScanner(os.Stdin) // line-delimited
for scanner.Scan() {
line := scanner.Text()
if line != "" {
argList = append(argList, line)
}
}
if err := scanner.Err(); err != nil {
ExitWithError(errors.Wrap(err, tr.Tr.Get("Error reading from stdin:")))
}
} else {
argList = args[1:]
}
if pushObjectIDs {
// We allow no object IDs with `--stdin` to make scripting
// easier and avoid having to special-case this in scripts.
if !useStdin && len(argList) < 1 {
Print(tr.Tr.Get("At least one object ID must be supplied with --object-id"))
os.Exit(1)
}
uploadsWithObjectIDs(ctx, argList)
} else {
if !useStdin && !pushAll && len(argList) < 1 {
Print(tr.Tr.Get("At least one ref must be supplied without --all"))
os.Exit(1)
}
uploadsBetweenRefAndRemote(ctx, argList)
}
}
func uploadsBetweenRefAndRemote(ctx *uploadContext, refnames []string) {
tracerx.Printf("Upload refs %v to remote %v", refnames, ctx.Remote)
updates, err := lfsPushRefs(refnames, pushAll)
if err != nil {
Error(err.Error())
Exit(tr.Tr.Get("Error getting local refs."))
}
if err := uploadForRefUpdates(ctx, updates, pushAll); err != nil {
ExitWithError(err)
}
}
func uploadsWithObjectIDs(ctx *uploadContext, oids []string) {
pointers := make([]*lfs.WrappedPointer, len(oids))
for i, oid := range oids {
mp, err := ctx.gitfilter.ObjectPath(oid)
if err != nil {
ExitWithError(errors.Wrap(err, tr.Tr.Get("Unable to find local media path:")))
}
stat, err := os.Stat(mp)
if err != nil {
ExitWithError(errors.Wrap(err, tr.Tr.Get("Unable to stat local media path")))
}
pointers[i] = &lfs.WrappedPointer{
Name: mp,
Pointer: &lfs.Pointer{
Oid: oid,
Size: stat.Size(),
},
}
}
q := ctx.NewQueue(tq.RemoteRef(currentRemoteRef()))
ctx.UploadPointers(q, pointers...)
ctx.CollectErrors(q)
ctx.ReportErrors()
}
// lfsPushRefs returns valid ref updates from the given ref and --all arguments.
// Either one or more refs can be explicitly specified, or --all indicates all
// local refs are pushed.
func lfsPushRefs(refnames []string, pushAll bool) ([]*git.RefUpdate, error) {
localrefs, err := git.LocalRefs()
if err != nil {
return nil, err
}
if pushAll && len(refnames) == 0 {
refs := make([]*git.RefUpdate, len(localrefs))
for i, lr := range localrefs {
refs[i] = git.NewRefUpdate(cfg.Git, cfg.PushRemote(), lr, nil)
}
return refs, nil
}
reflookup := make(map[string]*git.Ref, len(localrefs))
for _, ref := range localrefs {
reflookup[ref.Name] = ref
}
refs := make([]*git.RefUpdate, len(refnames))
for i, name := range refnames {
if ref, ok := reflookup[name]; ok {
refs[i] = git.NewRefUpdate(cfg.Git, cfg.PushRemote(), ref, nil)
} else {
ref := &git.Ref{Name: name, Type: git.RefTypeOther, Sha: name}
if _, err := git.ResolveRef(name); err != nil {
return nil, errors.New(tr.Tr.Get("Invalid ref argument: %v", name))
}
refs[i] = git.NewRefUpdate(cfg.Git, cfg.PushRemote(), ref, nil)
}
}
return refs, nil
}
func init() {
RegisterCommand("push", pushCommand, func(cmd *cobra.Command) {
cmd.Flags().BoolVarP(&pushDryRun, "dry-run", "d", false, "Do everything except actually send the updates")
cmd.Flags().BoolVarP(&pushObjectIDs, "object-id", "o", false, "Push LFS object ID(s)")
cmd.Flags().BoolVarP(&useStdin, "stdin", "", false, "Read object IDs or refs from stdin")
cmd.Flags().BoolVarP(&pushAll, "all", "a", false, "Push all objects for the current ref to the remote.")
})
}
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