forked from anchore/syft
-
Notifications
You must be signed in to change notification settings - Fork 0
/
parse_cabal_freeze.go
53 lines (46 loc) · 1.33 KB
/
parse_cabal_freeze.go
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
package haskell
import (
"bufio"
"errors"
"fmt"
"io"
"strings"
"github.com/anchore/syft/syft/artifact"
"github.com/anchore/syft/syft/pkg"
"github.com/anchore/syft/syft/pkg/cataloger/common"
)
// integrity check
var _ common.ParserFn = parseCabalFreeze
// parseCabalFreeze is a parser function for cabal.project.freeze contents, returning all packages discovered.
func parseCabalFreeze(_ string, reader io.Reader) ([]*pkg.Package, []artifact.Relationship, error) {
r := bufio.NewReader(reader)
pkgs := []*pkg.Package{}
for {
line, err := r.ReadString('\n')
switch {
case errors.Is(io.EOF, err):
return pkgs, nil, nil
case err != nil:
return nil, nil, fmt.Errorf("failed to parse cabal.project.freeze file: %w", err)
}
if !strings.Contains(line, "any.") {
continue
}
line = strings.TrimSpace(line)
startPkgEncoding, endPkgEncoding := strings.Index(line, "any.")+4, strings.Index(line, ",")
line = line[startPkgEncoding:endPkgEncoding]
splits := strings.Split(line, " ==")
pkgName, pkgVersion := splits[0], splits[1]
pkgs = append(pkgs, &pkg.Package{
Name: pkgName,
Version: pkgVersion,
Language: pkg.Haskell,
Type: pkg.HackagePkg,
MetadataType: pkg.HackageMetadataType,
Metadata: pkg.HackageMetadata{
Name: pkgName,
Version: pkgVersion,
},
})
}
}