forked from
tangled.org/core
Monorepo for Tangled
knotmirror: classify git error message
Signed-off-by: Seongmin Lee <git@boltless.me>
+40
-3
+40
-3
knotmirror/git.go
+40
-3
knotmirror/git.go
···
5
5
"errors"
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6
"fmt"
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7
"os/exec"
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+
"regexp"
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+
"strings"
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10
9
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"github.com/go-git/go-git/v5"
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gitconfig "github.com/go-git/go-git/v5/config"
···
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var _ GitMirrorClient = new(CliGitMirrorClient)
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func (c *CliGitMirrorClient) Clone(ctx context.Context, path, url string) error {
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-
cmd := exec.Command("git", "clone", "--mirror", url, path)
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+
cmd := exec.CommandContext(ctx, "git", "clone", "--mirror", url, path)
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if out, err := cmd.CombinedOutput(); err != nil {
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-
return fmt.Errorf("cloning repo: %w\n%s", err, string(out))
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+
if ctx.Err() != nil {
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+
return ctx.Err()
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+
}
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+
msg := string(out)
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+
if classification := classifyError(msg); classification != nil {
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+
return classification
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+
}
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return fmt.Errorf("cloning repo: %w\n%s", err, msg)
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}
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return nil
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}
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func (c *CliGitMirrorClient) Fetch(ctx context.Context, path, url string) error {
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-
cmd := exec.Command("git", "-C", path, "fetch", "--prune", url)
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+
cmd := exec.CommandContext(ctx, "git", "-C", path, "fetch", "--prune", url)
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if out, err := cmd.CombinedOutput(); err != nil {
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+
if ctx.Err() != nil {
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+
return ctx.Err()
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+
}
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return fmt.Errorf("fetching repo: %w\n%s", err, string(out))
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+
}
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+
return nil
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+
}
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+
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+
var (
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+
ErrDNSFailure = errors.New("git: dns failure (could not resolve host)")
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+
ErrCertExpired = errors.New("git: certificate has expired")
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+
ErrRepoNotFound = errors.New("git: repository not found")
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)
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+
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var (
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+
reDNS = regexp.MustCompile(`Could not resolve host:`)
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+
reCertExpired = regexp.MustCompile(`SSL certificate OpenSSL verify result: certificate has expired`)
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+
reRepoNotFound = regexp.MustCompile(`repository '.*' not found`)
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+
)
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+
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+
func classifyError(stderr string) error {
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+
msg := strings.TrimSpace(stderr)
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+
switch {
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+
case reDNS.MatchString(msg):
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+
return ErrDNSFailure
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+
case reCertExpired.MatchString(msg):
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+
return ErrCertExpired
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+
case reRepoNotFound.MatchString(msg):
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+
return ErrRepoNotFound
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}
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return nil
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}