github.com/hasnat/dolt/go@v0.0.0-20210628190320-9eb5d843fbb7/cmd/git-dolt/commands/update.go (about)

     1  // Copyright 2019 Dolthub, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package commands
    16  
    17  import (
    18  	"fmt"
    19  
    20  	"github.com/dolthub/dolt/go/cmd/git-dolt/config"
    21  	"github.com/dolthub/dolt/go/cmd/git-dolt/utils"
    22  )
    23  
    24  // Update updates the git-dolt pointer file at the given filename
    25  // to point to the specified revision.
    26  func Update(ptrFname string, revision string) error {
    27  	ptrFname = utils.EnsureSuffix(ptrFname, ".git-dolt")
    28  	c, err := config.Load(ptrFname)
    29  	if err != nil {
    30  		return err
    31  	}
    32  
    33  	c.Revision = revision
    34  
    35  	if err := config.Write(ptrFname, c.String()); err != nil {
    36  		return err
    37  	}
    38  	fmt.Printf("Updated pointer file %s to revision %s. You should git commit this change.\n", ptrFname, revision)
    39  	return nil
    40  }