289b30715d
This commit converts the dependency management from Godeps to the vendor folder, also switching the tool from godep to trash. Since the upstream tool lacks a few features proposed via a few PRs, until those PRs are merged in (if), use github.com/karalabe/trash. You can update dependencies via trash --update. All dependencies have been updated to their latest version. Parts of the build system are reworked to drop old notions of Godeps and invocation of the go vet command so that it doesn't run against the vendor folder, as that will just blow up during vetting. The conversion drops OpenCL (and hence GPU mining support) from ethash and our codebase. The short reasoning is that there's noone to maintain and having opencl libs in our deps messes up builds as go install ./... tries to build them, failing with unsatisfied link errors for the C OpenCL deps. golang.org/x/net/context is not vendored in. We expect it to be fetched by the user (i.e. using go get). To keep ci.go builds reproducible the package is "vendored" in build/_vendor.
151 lines
2.8 KiB
Go
151 lines
2.8 KiB
Go
// Copyright (c) 2014-2015 The Notify Authors. All rights reserved.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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package notify
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import (
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"errors"
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"os"
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"path/filepath"
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"strings"
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)
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const all = ^Event(0)
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const sep = string(os.PathSeparator)
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var errDepth = errors.New("exceeded allowed iteration count (circular symlink?)")
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func min(i, j int) int {
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if i > j {
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return j
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}
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return i
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}
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func max(i, j int) int {
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if i < j {
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return j
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}
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return i
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}
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// must panics if err is non-nil.
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func must(err error) {
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if err != nil {
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panic(err)
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}
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}
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// nonil gives first non-nil error from the given arguments.
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func nonil(err ...error) error {
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for _, err := range err {
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if err != nil {
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return err
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}
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}
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return nil
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}
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func cleanpath(path string) (realpath string, isrec bool, err error) {
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if strings.HasSuffix(path, "...") {
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isrec = true
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path = path[:len(path)-3]
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}
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if path, err = filepath.Abs(path); err != nil {
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return "", false, err
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}
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if path, err = canonical(path); err != nil {
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return "", false, err
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}
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return path, isrec, nil
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}
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// canonical resolves any symlink in the given path and returns it in a clean form.
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// It expects the path to be absolute. It fails to resolve circular symlinks by
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// maintaining a simple iteration limit.
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func canonical(p string) (string, error) {
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p, err := filepath.Abs(p)
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if err != nil {
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return "", err
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}
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for i, j, depth := 1, 0, 1; i < len(p); i, depth = i+1, depth+1 {
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if depth > 128 {
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return "", &os.PathError{Op: "canonical", Path: p, Err: errDepth}
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}
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if j = strings.IndexRune(p[i:], '/'); j == -1 {
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j, i = i, len(p)
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} else {
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j, i = i, i+j
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}
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fi, err := os.Lstat(p[:i])
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if err != nil {
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return "", err
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}
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if fi.Mode()&os.ModeSymlink == os.ModeSymlink {
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s, err := os.Readlink(p[:i])
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if err != nil {
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return "", err
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}
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if filepath.IsAbs(s) {
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p = "/" + s + p[i:]
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} else {
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p = p[:j] + s + p[i:]
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}
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i = 1 // no guarantee s is canonical, start all over
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}
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}
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return filepath.Clean(p), nil
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}
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func joinevents(events []Event) (e Event) {
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if len(events) == 0 {
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e = All
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} else {
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for _, event := range events {
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e |= event
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}
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}
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return
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}
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func split(s string) (string, string) {
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if i := lastIndexSep(s); i != -1 {
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return s[:i], s[i+1:]
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}
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return "", s
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}
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func base(s string) string {
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if i := lastIndexSep(s); i != -1 {
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return s[i+1:]
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}
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return s
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}
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func indexbase(root, name string) int {
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if n, m := len(root), len(name); m >= n && name[:n] == root &&
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(n == m || name[n] == os.PathSeparator) {
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return min(n+1, m)
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}
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return -1
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}
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func indexSep(s string) int {
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for i := 0; i < len(s); i++ {
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if s[i] == os.PathSeparator {
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return i
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}
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}
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return -1
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}
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func lastIndexSep(s string) int {
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for i := len(s) - 1; i >= 0; i-- {
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if s[i] == os.PathSeparator {
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return i
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}
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}
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return -1
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}
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