dip/vendor/github.com/gobuffalo/packr/v2/jam/parser/roots.go
2020-01-26 16:38:57 +01:00

90 lines
1.9 KiB
Go

package parser
import (
"bytes"
"encoding/json"
"io/ioutil"
"os"
"path/filepath"
"time"
"github.com/gobuffalo/packr/v2/internal/takeon/github.com/karrick/godirwalk"
"github.com/gobuffalo/packr/v2/plog"
)
type RootsOptions struct {
IgnoreImports bool
Ignores []string
}
func (r RootsOptions) String() string {
x, _ := json.Marshal(r)
return string(x)
}
// NewFromRoots scans the file roots provided and returns a
// new Parser containing the prospects
func NewFromRoots(roots []string, opts *RootsOptions) (*Parser, error) {
if opts == nil {
opts = &RootsOptions{}
}
if len(roots) == 0 {
pwd, _ := os.Getwd()
roots = append(roots, pwd)
}
p := New()
plog.Debug(p, "NewFromRoots", "roots", roots, "options", opts)
callback := func(path string, de *godirwalk.Dirent) error {
if IsProspect(path, opts.Ignores...) {
if de.IsDir() {
return nil
}
roots = append(roots, path)
return nil
}
if de.IsDir() {
return filepath.SkipDir
}
return nil
}
wopts := &godirwalk.Options{
FollowSymbolicLinks: true,
Callback: callback,
}
for _, root := range roots {
plog.Debug(p, "NewFromRoots", "walking", root)
err := godirwalk.Walk(root, wopts)
if err != nil {
return p, err
}
}
dd := map[string]string{}
fd := &finder{id: time.Now()}
for _, r := range roots {
var names []string
if opts.IgnoreImports {
names, _ = fd.findAllGoFiles(r)
} else {
names, _ = fd.findAllGoFilesImports(r)
}
for _, n := range names {
if IsProspect(n) {
plog.Debug(p, "NewFromRoots", "mapping", n)
dd[n] = n
}
}
}
for path := range dd {
plog.Debug(p, "NewFromRoots", "reading file", path)
b, err := ioutil.ReadFile(path)
if err != nil {
return nil, err
}
p.Prospects = append(p.Prospects, NewFile(path, bytes.NewReader(b)))
}
plog.Debug(p, "NewFromRoots", "found prospects", len(p.Prospects))
return p, nil
}