aboutsummaryrefslogtreecommitdiff
path: root/fs.go
blob: 905d6d18188af0f31ea17cce6ff084e4f0021403 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
package planr

import (
	"log"
	"os"
        "io"
	"path"
	"path/filepath"
        // "fmt"
)

/* CONFIG DIRECTORY */

// Consumes path
// Returns true if traversal should halt
type traversalFunc func(path string) bool;

// Traverse up until the root is reached
// Calls traverseFunc each iteration
// Returns true if prematurely stopped
func traverseUp(reference string, shouldStop traversalFunc) bool {
  cursor := reference
  
  for !shouldStop(cursor) {
    if filepath.ToSlash(cursor) == "/" {
      return false 
    }
    cursor = filepath.Join(cursor, "..")
  }

  return true
}

func directoryExists(path string) bool {
  info, err := os.Stat(path)

  if err != nil {
    if !os.IsNotExist(err) {
      log.Fatal(err)
    }

    return false;
  }

  return info.IsDir()
}

// Find the configuration directory
// Uses:
// 1. PlANR_DIRECTORY env if set
// 2. planr
// 3. .planr
func configDir() string {

  // Return environmental override if set
  if dir, isSet := os.LookupEnv("PLANR_DIRECTORY"); isSet {

    if !directoryExists(dir) {
      log.Fatalf("Cannot find planr directory %s", dir);
    }

    return dir;
  }

  cwd, err := os.Getwd()

  if err != nil {
    log.Fatal(err)
  }

  var rubricDir string

  rubric_search_dirs := [2]string{
    "planr",
    ".planr",
  }

  found := traverseUp(cwd, func (path string) bool {

    for _, dir := range rubric_search_dirs {
      rubricDir = filepath.Join(path, dir)
      
      if directoryExists(rubricDir) {
        return true
      }
    }

    return false 
  });

  if !found {
    log.Fatal("Could not find planr directory");
  }

  return rubricDir
}

// Find rubric directory at PLANR_DIR/rubric
func RubricDir() string {
  rubricDir := path.Join(configDir(), "rubric");

  if !directoryExists(rubricDir) {
    log.Fatal("Could not find the rubric directory inside of planr") 
  }

  return rubricDir
}

// Collects the units from the configuration tree
// TODO: Cleanup
func collectUnits(
  name      string,
  defaults *Defaults,
  cfgs      []AdapterConfig,
  units    *[]TestCase,
) {
  fp, err := os.Open(name)
  if err != nil {
    log.Fatal(err)
  }

  // Process defaults for this directory if a defaults.toml is found
  defaultsPath := path.Join(name, "defaults.toml")
  if info, err := os.Stat(defaultsPath); err == nil && !info.IsDir() {
    d := DecodeDefaults(defaultsPath, cfgs)

    // inherit the properties not defined in this defaults
    if defaults != nil {
      d.Inherit(defaults)
    }

    defaults = &d
  }

  // Read the entries in this directory
  for {
    dirs, err := fp.ReadDir(100)
    if err == io.EOF {
      break
    } else if err != nil {
      log.Fatal(err)
    }


    for _, ent := range dirs {
      child := path.Join(name, ent.Name())
      nm := ent.Name()

      if ent.IsDir() {
        collectUnits(child, defaults, cfgs, units)
      } else {
        if nm == "defaults.toml" {
          continue
        }

        // Decode a unit
        config := DecodeConfig(child, cfgs)
        config.Inherit(*defaults)

        tc := TestCase {
          Path: child,
          Cname: nm,
          Config: config,
        }

        *units = append(*units, tc)
      }
    }
  }
}