github.com/projectriff/riff-cli@v0.0.5-0.20180301104501-5db7a3bd9fc1/pkg/functions/functions.go (about)

     1  /*
     2   * Copyright 2018 the original author or authors.
     3   *
     4   *   Licensed under the Apache License, Version 2.0 (the "License");
     5   *   you may not use this file except in compliance with the License.
     6   *   You may obtain a copy of the License at
     7   *
     8   *        http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   *   Unless required by applicable law or agreed to in writing, software
    11   *   distributed under the License is distributed on an "AS IS" BASIS,
    12   *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   *   See the License for the specific language governing permissions and
    14   *   limitations under the License.
    15   */
    16  package functions
    17  
    18  import (
    19  	"path/filepath"
    20  	"github.com/projectriff/riff-cli/pkg/osutils"
    21  	"errors"
    22  	"fmt"
    23  )
    24  
    25  func FunctionNameFromPath(path string) (string, error) {
    26  	abs,err := AbsPath(path)
    27  	if err != nil {
    28  		return "", err
    29  	}
    30  	if osutils.IsDirectory(abs) {
    31  		return filepath.Base(abs), nil
    32  	}
    33  	return filepath.Base(filepath.Dir(abs)), nil
    34  }
    35  
    36  func FunctionDirFromPath(path string) (string, error) {
    37  	abs,err := AbsPath(path)
    38  	if err != nil {
    39  		return "", err
    40  	}
    41  	if osutils.IsDirectory(abs) {
    42  		return abs, nil
    43  	}
    44  	return filepath.Dir(abs), nil
    45  }
    46  
    47  func AbsPath(path string) (string, error) {
    48  	if path == "" {
    49  		path = "."
    50  	}
    51  	if !osutils.FileExists(path) {
    52  		return "", errors.New(fmt.Sprintf("path '%s' does not exist",path));
    53  	}
    54  	abs,err := filepath.Abs(path)
    55  	if err != nil {
    56  		return "", err
    57  	}
    58  	return abs, nil
    59  }