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iso_checksum: fix parsing with absent newline 

Signed-off-by: Vasiliy Tolstov <v.tolstov@selfip.ru>
This commit is contained in:
Vasiliy Tolstov 2016-03-31 07:05:00 +00:00
parent 443ffd68f2
commit 82c63bd723
2 changed files with 51 additions and 10 deletions
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20
common/iso_config.go
View File

@ -4,7 +4,6 @@ import (
"bufio"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"os"
@ -125,14 +124,11 @@ func (c *ISOConfig) Prepare(ctx *interpolate.Context) ([]string, []error) {
}
func (c *ISOConfig) parseCheckSumFile(rd *bufio.Reader) error {
errNotFound := fmt.Errorf("No checksum for %q found at: %s", filepath.Base(c.ISOUrls[0]), c.ISOChecksumURL)
for {
line, err := rd.ReadString('\n')
if err != nil {
if err == io.EOF {
return fmt.Errorf("No checksum for \"%s\" found at: %s", filepath.Base(c.ISOUrls[0]), c.ISOChecksumURL)
} else {
return fmt.Errorf("Error getting checksum from url: %s , %s", c.ISOChecksumURL, err.Error())
}
if err != nil && line == "" {
break
}
parts := strings.Fields(line)
if len(parts) < 2 {
@ -142,7 +138,7 @@ func (c *ISOConfig) parseCheckSumFile(rd *bufio.Reader) error {
// BSD-style checksum
if parts[1] == fmt.Sprintf("(%s)", filepath.Base(c.ISOUrls[0])) {
c.ISOChecksum = parts[3]
break
return nil
}
} else {
// Standard checksum
@ -152,9 +148,9 @@ func (c *ISOConfig) parseCheckSumFile(rd *bufio.Reader) error {
}
if parts[1] == filepath.Base(c.ISOUrls[0]) {
c.ISOChecksum = parts[0]
break
}
}
}
return nil
}
}
}
return errNotFound
}

45
common/iso_config_test.go
View File

@ -26,6 +26,14 @@ bAr0 *the-OS.iso
baZ0 other.iso
`
var cs_bsd_style_no_newline = `
MD5 (other.iso) = bAr
MD5 (the-OS.iso) = baZ`
var cs_gnu_style_no_newline = `
bAr0 *the-OS.iso
baZ0 other.iso`
func TestISOConfigPrepare_ISOChecksum(t *testing.T) {
i := testISOConfig()
@ -100,6 +108,43 @@ func TestISOConfigPrepare_ISOChecksumURL(t *testing.T) {
if i.ISOChecksum != "bar0" {
t.Fatalf("should've found \"bar0\" got: %s", i.ISOChecksum)
}
// Test good - ISOChecksumURL BSD style no newline
i = testISOConfig()
i.ISOChecksum = ""
cs_file, _ = ioutil.TempFile("", "packer-test-")
ioutil.WriteFile(cs_file.Name(), []byte(cs_bsd_style_no_newline), 0666)
i.ISOChecksumURL = fmt.Sprintf("file://%s", cs_file.Name())
warns, err = i.Prepare(nil)
if len(warns) > 0 {
t.Fatalf("bad: %#v", warns)
}
if err != nil {
t.Fatalf("should not have error: %s", err)
}
if i.ISOChecksum != "baz" {
t.Fatalf("should've found \"baz\" got: %s", i.ISOChecksum)
}
// Test good - ISOChecksumURL GNU style no newline
i = testISOConfig()
i.ISOChecksum = ""
cs_file, _ = ioutil.TempFile("", "packer-test-")
ioutil.WriteFile(cs_file.Name(), []byte(cs_gnu_style_no_newline), 0666)
i.ISOChecksumURL = fmt.Sprintf("file://%s", cs_file.Name())
warns, err = i.Prepare(nil)
if len(warns) > 0 {
t.Fatalf("bad: %#v", warns)
}
if err != nil {
t.Fatalf("should not have error: %s", err)
}
if i.ISOChecksum != "bar0" {
t.Fatalf("should've found \"bar0\" got: %s", i.ISOChecksum)
}
}
func TestISOConfigPrepare_ISOChecksumType(t *testing.T) {