0fa60c68fb
* Drop the iso_checksum_type & iso_checksum_url fields
In favor of simply using iso_checksum that will know what to do.
* fix after master merge
* Update builder_test.go
* Update builder_test.go
* Update builder_test.go
* Update builder_test.go
* Update builder_test.go
* remove checksum lowercasing tests
* Update builder_test.go
* Update builder_test.go
* better docs
* Update builder_test.go
* even better docs
* Update config.go
* Update builder_test.go
* Update step_create_vmx_test.go
* make generate
* better docs
* fix imports
* up tests
* Update _ISOConfig-required.html.md
* Update builder_test.go
* don't use sha1.Sum("none") as a caching path
* Update builder_test.go
* better docs
* Update iso_config_test.go
remove ISOChecksumType/ISOChecksumURL references
* Update step_download_test.go
* add iso_checksum_url and iso_checksum_type fixers + tests
* add concrete examples of checksum values
* add examples of checksumming from local file
* update go-getter dep
* up deps
* use new go-getter version
* up ESX5Driver.VerifyChecksum: use go-getter's checksumming
* ISOConfig.Prepare: get checksum there in case we need it as a string in ESX5Driver.VerifyChecksum
* Update iso_config.go
* get go-getter from v2 branch
* Update driver_esx5.go
add more comments
* Update driver_esx5.go
* show better error message when the checksum is invalid
* Update builder_test.go
put in a valid checksum to fix tests, checksum is md5("packer")
* Update builder_test.go
test invalid and valid checksum
* more test updating
* fix default md5 string to be a valid md5
* TestChecksumFileNameMixedCaseBug: use 'file:' prefix for file checksumming
* Update iso_config_test.go
* Update iso_config_test.go
* Update builder_test.go
* Update builder_test.go
* Update builder_test.go
* Update CHANGELOG.md
* Update CHANGELOG.md
* Update go.mod
* Update go.mod
* Update CHANGELOG.md
57 lines
1.5 KiB
Go
57 lines
1.5 KiB
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package xerrors
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import (
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"runtime"
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)
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// A Frame contains part of a call stack.
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type Frame struct {
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// Make room for three PCs: the one we were asked for, what it called,
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// and possibly a PC for skipPleaseUseCallersFrames. See:
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// https://go.googlesource.com/go/+/032678e0fb/src/runtime/extern.go#169
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frames [3]uintptr
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}
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// Caller returns a Frame that describes a frame on the caller's stack.
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// The argument skip is the number of frames to skip over.
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// Caller(0) returns the frame for the caller of Caller.
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func Caller(skip int) Frame {
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var s Frame
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runtime.Callers(skip+1, s.frames[:])
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return s
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}
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// location reports the file, line, and function of a frame.
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//
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// The returned function may be "" even if file and line are not.
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func (f Frame) location() (function, file string, line int) {
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frames := runtime.CallersFrames(f.frames[:])
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if _, ok := frames.Next(); !ok {
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return "", "", 0
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}
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fr, ok := frames.Next()
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if !ok {
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return "", "", 0
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}
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return fr.Function, fr.File, fr.Line
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}
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// Format prints the stack as error detail.
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// It should be called from an error's Format implementation
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// after printing any other error detail.
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func (f Frame) Format(p Printer) {
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if p.Detail() {
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function, file, line := f.location()
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if function != "" {
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p.Printf("%s\n ", function)
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}
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if file != "" {
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p.Printf("%s:%d\n", file, line)
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}
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}
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}
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