github.com/hasnat/dolt/go@v0.0.0-20210628190320-9eb5d843fbb7/cmd/git-dolt/commands/install.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  	"os/exec"
    20  	"path/filepath"
    21  
    22  	"github.com/dolthub/dolt/go/cmd/git-dolt/utils"
    23  )
    24  
    25  // Install configures this git repository for use with git-dolt; specifically, it sets up the
    26  // smudge filter that automatically clones dolt repos when git-dolt pointer files are checked out.
    27  func Install() error {
    28  	if _, err := exec.LookPath("git-dolt-smudge"); err != nil {
    29  		return fmt.Errorf("can't find git-dolt-smudge in PATH")
    30  	}
    31  
    32  	gitPath, err := utils.FindGitConfigUnderRoot()
    33  	if err != nil {
    34  		return err
    35  	}
    36  
    37  	gitParentPath := filepath.Dir(gitPath)
    38  	gitAttributesPath := filepath.Join(gitParentPath, ".gitattributes")
    39  	if err := utils.AppendToFile(gitAttributesPath, "*.git-dolt filter=git-dolt"); err != nil {
    40  		return err
    41  	}
    42  
    43  	gitConfigPath := filepath.Join(gitPath, "config")
    44  	if err := utils.AppendToFile(gitConfigPath, "[filter \"git-dolt\"]\n\tsmudge = git-dolt-smudge"); err != nil {
    45  		return err
    46  	}
    47  
    48  	fmt.Println("Installed git-dolt smudge filter. When git-dolt pointer files are checked out in this git repository, the corresponding Dolt repositories will be automatically cloned.")
    49  	fmt.Println("\nYou should git commit the changes to .gitattributes.")
    50  	return nil
    51  }