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package commands
import (
"context"
"fmt"
"os"
"sync"
"time"
"github.com/araddon/dateparse"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/MichaelMure/git-bug/bridge"
"github.com/MichaelMure/git-bug/bridge/core"
"github.com/MichaelMure/git-bug/cache"
"github.com/MichaelMure/git-bug/util/interrupt"
)
type bridgePullOptions struct {
importSince string
noResume bool
}
func newBridgePullCommand() *cobra.Command {
env := newEnv()
options := bridgePullOptions{}
cmd := &cobra.Command{
Use: "pull [<name>]",
Short: "Pull updates.",
PreRunE: loadRepo(env),
RunE: func(cmd *cobra.Command, args []string) error {
return runBridgePull(env, options, args)
},
Args: cobra.MaximumNArgs(1),
}
flags := cmd.Flags()
flags.SortFlags = false
flags.BoolVarP(&options.noResume, "no-resume", "n", false, "force importing all bugs")
flags.StringVarP(&options.importSince, "since", "s", "", "import only bugs updated after the given date (ex: \"200h\" or \"june 2 2019\")")
return cmd
}
func runBridgePull(env *Env, opts bridgePullOptions, args []string) error {
if opts.noResume && opts.importSince != "" {
return fmt.Errorf("only one of --no-resume and --since flags should be used")
}
backend, err := cache.NewRepoCache(env.repo)
if err != nil {
return err
}
defer backend.Close()
interrupt.RegisterCleaner(backend.Close)
var b *core.Bridge
if len(args) == 0 {
b, err = bridge.DefaultBridge(backend)
} else {
b, err = bridge.LoadBridge(backend, args[0])
}
if err != nil {
return err
}
parentCtx := context.Background()
ctx, cancel := context.WithCancel(parentCtx)
defer cancel()
// buffered channel to avoid send block at the end
done := make(chan struct{}, 1)
var mu sync.Mutex
interruptCount := 0
interrupt.RegisterCleaner(func() error {
mu.Lock()
if interruptCount > 0 {
env.err.Println("Received another interrupt before graceful stop, terminating...")
os.Exit(0)
}
interruptCount++
mu.Unlock()
env.err.Println("Received interrupt signal, stopping the import...\n(Hit ctrl-c again to kill the process.)")
// send signal to stop the importer
cancel()
// block until importer gracefully shutdown
<-done
return nil
})
var events <-chan core.ImportResult
switch {
case opts.noResume:
events, err = b.ImportAllSince(ctx, time.Time{})
case opts.importSince != "":
since, err2 := parseSince(opts.importSince)
if err2 != nil {
return errors.Wrap(err2, "import time parsing")
}
events, err = b.ImportAllSince(ctx, since)
default:
events, err = b.ImportAll(ctx)
}
if err != nil {
return err
}
importedIssues := 0
importedIdentities := 0
for result := range events {
switch result.Event {
case core.ImportEventNothing:
// filtered
case core.ImportEventBug:
importedIssues++
env.out.Println(result.String())
case core.ImportEventIdentity:
importedIdentities++
env.out.Println(result.String())
case core.ImportEventError:
if result.Err != context.Canceled {
env.out.Println(result.String())
}
default:
env.out.Println(result.String())
}
}
env.out.Printf("imported %d issues and %d identities with %s bridge\n", importedIssues, importedIdentities, b.Name)
// send done signal
close(done)
return nil
}
func parseSince(since string) (time.Time, error) {
duration, err := time.ParseDuration(since)
if err == nil {
return time.Now().Add(-duration), nil
}
return dateparse.ParseLocal(since)
}
|
