mirror of
https://github.com/zjdyzww/harness.git
synced 2026-09-28 14:24:00 +08:00
107 lines
2.9 KiB
Go
107 lines
2.9 KiB
Go
// Copyright 2023 Harness, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package command
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import (
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"errors"
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"fmt"
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"os/exec"
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"strings"
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)
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var (
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// ErrInvalidArg represent family of errors to report about bad argument used to make a call.
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ErrInvalidArg = errors.New("invalid argument")
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)
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// Error type with optional ExitCode and Stderr payload.
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type Error struct {
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Err error
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StdErr []byte
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}
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// NewError creates error with source err and stderr payload.
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func NewError(err error, stderr []byte) *Error {
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return &Error{
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Err: err,
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StdErr: stderr,
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}
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}
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func (e *Error) ExitCode() int {
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var exitErr *exec.ExitError
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ok := errors.As(e.Err, &exitErr)
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if ok {
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return exitErr.ExitCode()
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}
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return 0
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}
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func (e *Error) IsExitCode(code int) bool {
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return e.ExitCode() == code
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}
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func (e *Error) IsAmbiguousArgErr() bool {
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return strings.Contains(e.Error(), "ambiguous argument")
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}
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func (e *Error) IsBadObject() bool {
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return strings.Contains(e.Error(), "bad object")
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}
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// IsBadRevision returns true if git failed to resolve a revision that was given in a
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// position where it can't be reinterpreted as a path - most notably behind the "^"
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// exclusion prefix. Git reports the very same "unknown revision" condition as
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// "ambiguous argument" for a plain positional revision, so callers that tolerate
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// unresolvable revisions have to check for both.
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// e.g. `git rev-list ^refs/heads/nope main` -> fatal: bad revision '^refs/heads/nope'.
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func (e *Error) IsBadRevision() bool {
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return strings.Contains(e.Error(), "bad revision")
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}
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func (e *Error) IsInvalidRefErr() bool {
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return strings.Contains(e.Error(), "not a valid ref")
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}
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// IsSHAMismatchErr checks if the error is a SHA mismatch error from git update-ref.
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// Git returns: "fatal: cannot lock ref '<ref>': is at <actual> but expected <old>"
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// This indicates an optimistic locking failure where the ref's current value doesn't
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// match the expected old value provided to update-ref.
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func (e *Error) IsSHAMismatchErr() bool {
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msg := e.Error()
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return strings.Contains(msg, "cannot lock ref") &&
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strings.Contains(msg, "is at") &&
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strings.Contains(msg, "but expected")
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}
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func (e *Error) Error() string {
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if len(e.StdErr) != 0 {
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return fmt.Sprintf("%s: %s", e.Err.Error(), e.StdErr)
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}
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return e.Err.Error()
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}
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func (e *Error) Unwrap() error {
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return e.Err
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}
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// AsError unwraps Error otherwise return nil.
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func AsError(err error) (e *Error) {
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if errors.As(err, &e) {
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return
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}
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return nil
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}
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