⚙️ Add ability to build from Dockerfiles directly

This commit is contained in:
Ettore Di Giacinto
2022-04-26 19:24:31 +02:00
committed by mudler
parent 4e2a2adfc1
commit e70a543f42
457 changed files with 33148 additions and 4999 deletions

66
vendor/github.com/moby/buildkit/AUTHORS generated vendored Normal file
View File

@@ -0,0 +1,66 @@
# This file lists all individuals having contributed content to the repository.
# For how it is generated, see `scripts/generate-authors.sh`.
Aaron L. Xu <likexu@harmonycloud.cn>
Aaron Lehmann <aaron.lehmann@docker.com>
Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Alexander Morozov <lk4d4@docker.com>
Alice Frosi <afrosi@de.ibm.com>
Allen Sun <allen.sun@daocloud.io>
Anda Xu <anda.xu@docker.com>
Anthony Sottile <asottile@umich.edu>
Arnaud Bailly <arnaud.oqube@gmail.com>
Bin Liu <liubin0329@gmail.com>
Brian Goff <cpuguy83@gmail.com>
Daniel Nephin <dnephin@gmail.com>
Dave Chen <dave.chen@arm.com>
David Calavera <david.calavera@gmail.com>
Dennis Chen <dennis.chen@arm.com>
Derek McGowan <derek@mcgstyle.net>
Doug Davis <dug@us.ibm.com>
Edgar Lee <edgarl@netflix.com>
Eli Uriegas <eli.uriegas@docker.com>
f0 <f0@users.noreply.github.com>
Fernando Miguel <github@FernandoMiguel.net>
Hao Hu <hao.hu.fr@gmail.com>
Helen Xie <chenjg@harmonycloud.cn>
Himanshu Pandey <hpandey@pivotal.io>
Hiromu Nakamura <abctail30@gmail.com>
Ian Campbell <ijc@docker.com>
Iskander (Alex) Sharipov <quasilyte@gmail.com>
Jean-Pierre Huynh <jean-pierre.huynh@ounet.fr>
Jessica Frazelle <acidburn@microsoft.com>
John Howard <jhoward@microsoft.com>
Jonathan Stoppani <jonathan.stoppani@divio.com>
Justas Brazauskas <brazauskasjustas@gmail.com>
Justin Cormack <justin.cormack@docker.com>
Kunal Kushwaha <kushwaha_kunal_v7@lab.ntt.co.jp>
Lajos Papp <lalyos@yahoo.com>
Matt Rickard <mrick@google.com>
Michael Crosby <crosbymichael@gmail.com>
Miyachi Katsuya <miyachi_katsuya@r.recruit.co.jp>
Nao YONASHIRO <yonashiro@r.recruit.co.jp>
Natasha Jarus <linuxmercedes@gmail.com>
Noel Georgi <18496730+frezbo@users.noreply.github.com>
Ondrej Fabry <ofabry@cisco.com>
Patrick Van Stee <patrick@vanstee.me>
Ri Xu <xuri.me@gmail.com>
Sebastiaan van Stijn <github@gone.nl>
Shev Yan <yandong_8212@163.com>
Simon Ferquel <simon.ferquel@docker.com>
Stefan Weil <sw@weilnetz.de>
Thomas Leonard <thomas.leonard@docker.com>
Thomas Shaw <tomwillfixit@users.noreply.github.com>
Tibor Vass <tibor@docker.com>
Tiffany Jernigan <tiffany.f.j@gmail.com>
Tino Rusch <tino.rusch@gmail.com>
Tobias Klauser <tklauser@distanz.ch>
Tomas Tomecek <ttomecek@redhat.com>
Tomohiro Kusumoto <zabio1192@gmail.com>
Tõnis Tiigi <tonistiigi@gmail.com>
Vincent Demeester <vincent.demeester@docker.com>
Wei Fu <fuweid89@gmail.com>
Yong Tang <yong.tang.github@outlook.com>
Yuichiro Kaneko <spiketeika@gmail.com>
Ziv Tsarfati <digger18@gmail.com>
郑泽宇 <perhapszzy@sina.com>

201
vendor/github.com/moby/buildkit/LICENSE generated vendored Normal file
View File

@@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright [yyyy] [name of copyright owner]
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

View File

@@ -0,0 +1,46 @@
// Package command contains the set of Dockerfile commands.
package command
// Define constants for the command strings
const (
Add = "add"
Arg = "arg"
Cmd = "cmd"
Copy = "copy"
Entrypoint = "entrypoint"
Env = "env"
Expose = "expose"
From = "from"
Healthcheck = "healthcheck"
Label = "label"
Maintainer = "maintainer"
Onbuild = "onbuild"
Run = "run"
Shell = "shell"
StopSignal = "stopsignal"
User = "user"
Volume = "volume"
Workdir = "workdir"
)
// Commands is list of all Dockerfile commands
var Commands = map[string]struct{}{
Add: {},
Arg: {},
Cmd: {},
Copy: {},
Entrypoint: {},
Env: {},
Expose: {},
From: {},
Healthcheck: {},
Label: {},
Maintainer: {},
Onbuild: {},
Run: {},
Shell: {},
StopSignal: {},
User: {},
Volume: {},
Workdir: {},
}

View File

@@ -0,0 +1,58 @@
package parser
import (
"github.com/moby/buildkit/util/stack"
"github.com/pkg/errors"
)
// ErrorLocation gives a location in source code that caused the error
type ErrorLocation struct {
Location []Range
error
}
// Unwrap unwraps to the next error
func (e *ErrorLocation) Unwrap() error {
return e.error
}
// Range is a code section between two positions
type Range struct {
Start Position
End Position
}
// Position is a point in source code
type Position struct {
Line int
Character int
}
func withLocation(err error, start, end int) error {
return WithLocation(err, toRanges(start, end))
}
// WithLocation extends an error with a source code location
func WithLocation(err error, location []Range) error {
if err == nil {
return nil
}
var el *ErrorLocation
if errors.As(err, &el) {
return err
}
return stack.Enable(&ErrorLocation{
error: err,
Location: location,
})
}
func toRanges(start, end int) (r []Range) {
if end <= start {
end = start
}
for i := start; i <= end; i++ {
r = append(r, Range{Start: Position{Line: i}, End: Position{Line: i}})
}
return
}

View File

@@ -0,0 +1,369 @@
package parser
// line parsers are dispatch calls that parse a single unit of text into a
// Node object which contains the whole statement. Dockerfiles have varied
// (but not usually unique, see ONBUILD for a unique example) parsing rules
// per-command, and these unify the processing in a way that makes it
// manageable.
import (
"encoding/json"
"fmt"
"strings"
"unicode"
"unicode/utf8"
"github.com/pkg/errors"
)
var (
errDockerfileNotStringArray = errors.New("when using JSON array syntax, arrays must be comprised of strings only")
)
const (
commandLabel = "LABEL"
)
// ignore the current argument. This will still leave a command parsed, but
// will not incorporate the arguments into the ast.
func parseIgnore(rest string, d *directives) (*Node, map[string]bool, error) {
return &Node{}, nil, nil
}
// used for onbuild. Could potentially be used for anything that represents a
// statement with sub-statements.
//
// ONBUILD RUN foo bar -> (onbuild (run foo bar))
//
func parseSubCommand(rest string, d *directives) (*Node, map[string]bool, error) {
if rest == "" {
return nil, nil, nil
}
child, err := newNodeFromLine(rest, d, nil)
if err != nil {
return nil, nil, err
}
return &Node{Children: []*Node{child}}, nil, nil
}
// helper to parse words (i.e space delimited or quoted strings) in a statement.
// The quotes are preserved as part of this function and they are stripped later
// as part of processWords().
func parseWords(rest string, d *directives) []string {
const (
inSpaces = iota // looking for start of a word
inWord
inQuote
)
words := []string{}
phase := inSpaces
word := ""
quote := '\000'
blankOK := false
var ch rune
var chWidth int
for pos := 0; pos <= len(rest); pos += chWidth {
if pos != len(rest) {
ch, chWidth = utf8.DecodeRuneInString(rest[pos:])
}
if phase == inSpaces { // Looking for start of word
if pos == len(rest) { // end of input
break
}
if unicode.IsSpace(ch) { // skip spaces
continue
}
phase = inWord // found it, fall through
}
if (phase == inWord || phase == inQuote) && (pos == len(rest)) {
if blankOK || len(word) > 0 {
words = append(words, word)
}
break
}
if phase == inWord {
if unicode.IsSpace(ch) {
phase = inSpaces
if blankOK || len(word) > 0 {
words = append(words, word)
}
word = ""
blankOK = false
continue
}
if ch == '\'' || ch == '"' {
quote = ch
blankOK = true
phase = inQuote
}
if ch == d.escapeToken {
if pos+chWidth == len(rest) {
continue // just skip an escape token at end of line
}
// If we're not quoted and we see an escape token, then always just
// add the escape token plus the char to the word, even if the char
// is a quote.
word += string(ch)
pos += chWidth
ch, chWidth = utf8.DecodeRuneInString(rest[pos:])
}
word += string(ch)
continue
}
if phase == inQuote {
if ch == quote {
phase = inWord
}
// The escape token is special except for ' quotes - can't escape anything for '
if ch == d.escapeToken && quote != '\'' {
if pos+chWidth == len(rest) {
phase = inWord
continue // just skip the escape token at end
}
pos += chWidth
word += string(ch)
ch, chWidth = utf8.DecodeRuneInString(rest[pos:])
}
word += string(ch)
}
}
return words
}
// parse environment like statements. Note that this does *not* handle
// variable interpolation, which will be handled in the evaluator.
func parseNameVal(rest string, key string, d *directives) (*Node, error) {
// This is kind of tricky because we need to support the old
// variant: KEY name value
// as well as the new one: KEY name=value ...
// The trigger to know which one is being used will be whether we hit
// a space or = first. space ==> old, "=" ==> new
words := parseWords(rest, d)
if len(words) == 0 {
return nil, nil
}
// Old format (KEY name value)
if !strings.Contains(words[0], "=") {
parts := reWhitespace.Split(rest, 2)
if len(parts) < 2 {
return nil, fmt.Errorf(key + " must have two arguments")
}
return newKeyValueNode(parts[0], parts[1]), nil
}
var rootNode *Node
var prevNode *Node
for _, word := range words {
if !strings.Contains(word, "=") {
return nil, fmt.Errorf("Syntax error - can't find = in %q. Must be of the form: name=value", word)
}
parts := strings.SplitN(word, "=", 2)
node := newKeyValueNode(parts[0], parts[1])
rootNode, prevNode = appendKeyValueNode(node, rootNode, prevNode)
}
return rootNode, nil
}
func newKeyValueNode(key, value string) *Node {
return &Node{
Value: key,
Next: &Node{Value: value},
}
}
func appendKeyValueNode(node, rootNode, prevNode *Node) (*Node, *Node) {
if rootNode == nil {
rootNode = node
}
if prevNode != nil {
prevNode.Next = node
}
prevNode = node.Next
return rootNode, prevNode
}
func parseEnv(rest string, d *directives) (*Node, map[string]bool, error) {
node, err := parseNameVal(rest, "ENV", d)
return node, nil, err
}
func parseLabel(rest string, d *directives) (*Node, map[string]bool, error) {
node, err := parseNameVal(rest, commandLabel, d)
return node, nil, err
}
// parses a statement containing one or more keyword definition(s) and/or
// value assignments, like `name1 name2= name3="" name4=value`.
// Note that this is a stricter format than the old format of assignment,
// allowed by parseNameVal(), in a way that this only allows assignment of the
// form `keyword=[<value>]` like `name2=`, `name3=""`, and `name4=value` above.
// In addition, a keyword definition alone is of the form `keyword` like `name1`
// above. And the assignments `name2=` and `name3=""` are equivalent and
// assign an empty value to the respective keywords.
func parseNameOrNameVal(rest string, d *directives) (*Node, map[string]bool, error) {
words := parseWords(rest, d)
if len(words) == 0 {
return nil, nil, nil
}
var (
rootnode *Node
prevNode *Node
)
for i, word := range words {
node := &Node{}
node.Value = word
if i == 0 {
rootnode = node
} else {
prevNode.Next = node
}
prevNode = node
}
return rootnode, nil, nil
}
// parses a whitespace-delimited set of arguments. The result is effectively a
// linked list of string arguments.
func parseStringsWhitespaceDelimited(rest string, d *directives) (*Node, map[string]bool, error) {
if rest == "" {
return nil, nil, nil
}
node := &Node{}
rootnode := node
prevnode := node
for _, str := range reWhitespace.Split(rest, -1) { // use regexp
prevnode = node
node.Value = str
node.Next = &Node{}
node = node.Next
}
// XXX to get around regexp.Split *always* providing an empty string at the
// end due to how our loop is constructed, nil out the last node in the
// chain.
prevnode.Next = nil
return rootnode, nil, nil
}
// parseString just wraps the string in quotes and returns a working node.
func parseString(rest string, d *directives) (*Node, map[string]bool, error) {
if rest == "" {
return nil, nil, nil
}
n := &Node{}
n.Value = rest
return n, nil, nil
}
// parseJSON converts JSON arrays to an AST.
func parseJSON(rest string, d *directives) (*Node, map[string]bool, error) {
rest = strings.TrimLeftFunc(rest, unicode.IsSpace)
if !strings.HasPrefix(rest, "[") {
return nil, nil, fmt.Errorf(`Error parsing "%s" as a JSON array`, rest)
}
var myJSON []interface{}
if err := json.NewDecoder(strings.NewReader(rest)).Decode(&myJSON); err != nil {
return nil, nil, err
}
var top, prev *Node
for _, str := range myJSON {
s, ok := str.(string)
if !ok {
return nil, nil, errDockerfileNotStringArray
}
node := &Node{Value: s}
if prev == nil {
top = node
} else {
prev.Next = node
}
prev = node
}
return top, map[string]bool{"json": true}, nil
}
// parseMaybeJSON determines if the argument appears to be a JSON array. If
// so, passes to parseJSON; if not, quotes the result and returns a single
// node.
func parseMaybeJSON(rest string, d *directives) (*Node, map[string]bool, error) {
if rest == "" {
return nil, nil, nil
}
node, attrs, err := parseJSON(rest, d)
if err == nil {
return node, attrs, nil
}
if err == errDockerfileNotStringArray {
return nil, nil, err
}
node = &Node{}
node.Value = rest
return node, nil, nil
}
// parseMaybeJSONToList determines if the argument appears to be a JSON array. If
// so, passes to parseJSON; if not, attempts to parse it as a whitespace
// delimited string.
func parseMaybeJSONToList(rest string, d *directives) (*Node, map[string]bool, error) {
node, attrs, err := parseJSON(rest, d)
if err == nil {
return node, attrs, nil
}
if err == errDockerfileNotStringArray {
return nil, nil, err
}
return parseStringsWhitespaceDelimited(rest, d)
}
// The HEALTHCHECK command is like parseMaybeJSON, but has an extra type argument.
func parseHealthConfig(rest string, d *directives) (*Node, map[string]bool, error) {
// Find end of first argument
var sep int
for ; sep < len(rest); sep++ {
if unicode.IsSpace(rune(rest[sep])) {
break
}
}
next := sep
for ; next < len(rest); next++ {
if !unicode.IsSpace(rune(rest[next])) {
break
}
}
if sep == 0 {
return nil, nil, nil
}
typ := rest[:sep]
cmd, attrs, err := parseMaybeJSON(rest[next:], d)
if err != nil {
return nil, nil, err
}
return &Node{Value: typ, Next: cmd}, attrs, err
}

View File

@@ -0,0 +1,573 @@
// Package parser implements a parser and parse tree dumper for Dockerfiles.
package parser
import (
"bufio"
"bytes"
"fmt"
"io"
"regexp"
"strconv"
"strings"
"unicode"
"github.com/moby/buildkit/frontend/dockerfile/command"
"github.com/moby/buildkit/frontend/dockerfile/shell"
"github.com/pkg/errors"
)
// Node is a structure used to represent a parse tree.
//
// In the node there are three fields, Value, Next, and Children. Value is the
// current token's string value. Next is always the next non-child token, and
// children contains all the children. Here's an example:
//
// (value next (child child-next child-next-next) next-next)
//
// This data structure is frankly pretty lousy for handling complex languages,
// but lucky for us the Dockerfile isn't very complicated. This structure
// works a little more effectively than a "proper" parse tree for our needs.
//
type Node struct {
Value string // actual content
Next *Node // the next item in the current sexp
Children []*Node // the children of this sexp
Heredocs []Heredoc // extra heredoc content attachments
Attributes map[string]bool // special attributes for this node
Original string // original line used before parsing
Flags []string // only top Node should have this set
StartLine int // the line in the original dockerfile where the node begins
EndLine int // the line in the original dockerfile where the node ends
PrevComment []string
}
// Location return the location of node in source code
func (node *Node) Location() []Range {
return toRanges(node.StartLine, node.EndLine)
}
// Dump dumps the AST defined by `node` as a list of sexps.
// Returns a string suitable for printing.
func (node *Node) Dump() string {
str := ""
str += strings.ToLower(node.Value)
if len(node.Flags) > 0 {
str += fmt.Sprintf(" %q", node.Flags)
}
for _, n := range node.Children {
str += "(" + n.Dump() + ")\n"
}
for n := node.Next; n != nil; n = n.Next {
if len(n.Children) > 0 {
str += " " + n.Dump()
} else {
str += " " + strconv.Quote(n.Value)
}
}
return strings.TrimSpace(str)
}
func (node *Node) lines(start, end int) {
node.StartLine = start
node.EndLine = end
}
func (node *Node) canContainHeredoc() bool {
// check for compound commands, like ONBUILD
if ok := heredocCompoundDirectives[strings.ToLower(node.Value)]; ok {
if node.Next != nil && len(node.Next.Children) > 0 {
node = node.Next.Children[0]
}
}
if ok := heredocDirectives[strings.ToLower(node.Value)]; !ok {
return false
}
if isJSON := node.Attributes["json"]; isJSON {
return false
}
return true
}
// AddChild adds a new child node, and updates line information
func (node *Node) AddChild(child *Node, startLine, endLine int) {
child.lines(startLine, endLine)
if node.StartLine < 0 {
node.StartLine = startLine
}
node.EndLine = endLine
node.Children = append(node.Children, child)
}
type Heredoc struct {
Name string
FileDescriptor uint
Expand bool
Chomp bool
Content string
}
var (
dispatch map[string]func(string, *directives) (*Node, map[string]bool, error)
reWhitespace = regexp.MustCompile(`[\t\v\f\r ]+`)
reDirectives = regexp.MustCompile(`^#\s*([a-zA-Z][a-zA-Z0-9]*)\s*=\s*(.+?)\s*$`)
reComment = regexp.MustCompile(`^#.*$`)
reHeredoc = regexp.MustCompile(`^(\d*)<<(-?)([^<]*)$`)
reLeadingTabs = regexp.MustCompile(`(?m)^\t+`)
)
// DefaultEscapeToken is the default escape token
const DefaultEscapeToken = '\\'
var validDirectives = map[string]struct{}{
"escape": {},
"syntax": {},
}
var (
// Directives allowed to contain heredocs
heredocDirectives = map[string]bool{
command.Add: true,
command.Copy: true,
command.Run: true,
}
// Directives allowed to contain directives containing heredocs
heredocCompoundDirectives = map[string]bool{
command.Onbuild: true,
}
)
// directive is the structure used during a build run to hold the state of
// parsing directives.
type directives struct {
escapeToken rune // Current escape token
lineContinuationRegex *regexp.Regexp // Current line continuation regex
done bool // Whether we are done looking for directives
seen map[string]struct{} // Whether the escape directive has been seen
}
// setEscapeToken sets the default token for escaping characters and as line-
// continuation token in a Dockerfile. Only ` (backtick) and \ (backslash) are
// allowed as token.
func (d *directives) setEscapeToken(s string) error {
if s != "`" && s != `\` {
return errors.Errorf("invalid escape token '%s' does not match ` or \\", s)
}
d.escapeToken = rune(s[0])
// The escape token is used both to escape characters in a line and as line
// continuation token. If it's the last non-whitespace token, it is used as
// line-continuation token, *unless* preceded by an escape-token.
//
// The second branch in the regular expression handles line-continuation
// tokens on their own line, which don't have any character preceding them.
//
// Due to Go lacking negative look-ahead matching, this regular expression
// does not currently handle a line-continuation token preceded by an *escaped*
// escape-token ("foo \\\").
d.lineContinuationRegex = regexp.MustCompile(`([^\` + s + `])\` + s + `[ \t]*$|^\` + s + `[ \t]*$`)
return nil
}
// possibleParserDirective looks for parser directives, eg '# escapeToken=<char>'.
// Parser directives must precede any builder instruction or other comments,
// and cannot be repeated.
func (d *directives) possibleParserDirective(line string) error {
if d.done {
return nil
}
match := reDirectives.FindStringSubmatch(line)
if len(match) == 0 {
d.done = true
return nil
}
k := strings.ToLower(match[1])
_, ok := validDirectives[k]
if !ok {
d.done = true
return nil
}
if _, ok := d.seen[k]; ok {
return errors.Errorf("only one %s parser directive can be used", k)
}
d.seen[k] = struct{}{}
if k == "escape" {
return d.setEscapeToken(match[2])
}
return nil
}
// newDefaultDirectives returns a new directives structure with the default escapeToken token
func newDefaultDirectives() *directives {
d := &directives{
seen: map[string]struct{}{},
}
d.setEscapeToken(string(DefaultEscapeToken))
return d
}
func init() {
// Dispatch Table. see line_parsers.go for the parse functions.
// The command is parsed and mapped to the line parser. The line parser
// receives the arguments but not the command, and returns an AST after
// reformulating the arguments according to the rules in the parser
// functions. Errors are propagated up by Parse() and the resulting AST can
// be incorporated directly into the existing AST as a next.
dispatch = map[string]func(string, *directives) (*Node, map[string]bool, error){
command.Add: parseMaybeJSONToList,
command.Arg: parseNameOrNameVal,
command.Cmd: parseMaybeJSON,
command.Copy: parseMaybeJSONToList,
command.Entrypoint: parseMaybeJSON,
command.Env: parseEnv,
command.Expose: parseStringsWhitespaceDelimited,
command.From: parseStringsWhitespaceDelimited,
command.Healthcheck: parseHealthConfig,
command.Label: parseLabel,
command.Maintainer: parseString,
command.Onbuild: parseSubCommand,
command.Run: parseMaybeJSON,
command.Shell: parseMaybeJSON,
command.StopSignal: parseString,
command.User: parseString,
command.Volume: parseMaybeJSONToList,
command.Workdir: parseString,
}
}
// newNodeFromLine splits the line into parts, and dispatches to a function
// based on the command and command arguments. A Node is created from the
// result of the dispatch.
func newNodeFromLine(line string, d *directives, comments []string) (*Node, error) {
cmd, flags, args, err := splitCommand(line)
if err != nil {
return nil, err
}
fn := dispatch[strings.ToLower(cmd)]
// Ignore invalid Dockerfile instructions
if fn == nil {
fn = parseIgnore
}
next, attrs, err := fn(args, d)
if err != nil {
return nil, err
}
return &Node{
Value: cmd,
Original: line,
Flags: flags,
Next: next,
Attributes: attrs,
PrevComment: comments,
}, nil
}
// Result is the result of parsing a Dockerfile
type Result struct {
AST *Node
EscapeToken rune
Warnings []Warning
}
type Warning struct {
Short string
Detail [][]byte
URL string
Location *Range
}
// PrintWarnings to the writer
func (r *Result) PrintWarnings(out io.Writer) {
if len(r.Warnings) == 0 {
return
}
for _, w := range r.Warnings {
fmt.Fprintf(out, "[WARNING]: %s\n", w.Short)
}
if len(r.Warnings) > 0 {
fmt.Fprintf(out, "[WARNING]: Empty continuation lines will become errors in a future release.\n")
}
}
// Parse reads lines from a Reader, parses the lines into an AST and returns
// the AST and escape token
func Parse(rwc io.Reader) (*Result, error) {
d := newDefaultDirectives()
currentLine := 0
root := &Node{StartLine: -1}
scanner := bufio.NewScanner(rwc)
scanner.Split(scanLines)
warnings := []Warning{}
var comments []string
var err error
for scanner.Scan() {
bytesRead := scanner.Bytes()
if currentLine == 0 {
// First line, strip the byte-order-marker if present
bytesRead = bytes.TrimPrefix(bytesRead, utf8bom)
}
if isComment(bytesRead) {
comment := strings.TrimSpace(string(bytesRead[1:]))
if comment == "" {
comments = nil
} else {
comments = append(comments, comment)
}
}
bytesRead, err = processLine(d, bytesRead, true)
if err != nil {
return nil, withLocation(err, currentLine, 0)
}
currentLine++
startLine := currentLine
line, isEndOfLine := trimContinuationCharacter(string(bytesRead), d)
if isEndOfLine && line == "" {
continue
}
var hasEmptyContinuationLine bool
for !isEndOfLine && scanner.Scan() {
bytesRead, err := processLine(d, scanner.Bytes(), false)
if err != nil {
return nil, withLocation(err, currentLine, 0)
}
currentLine++
if isComment(scanner.Bytes()) {
// original line was a comment (processLine strips comments)
continue
}
if isEmptyContinuationLine(bytesRead) {
hasEmptyContinuationLine = true
continue
}
continuationLine := string(bytesRead)
continuationLine, isEndOfLine = trimContinuationCharacter(continuationLine, d)
line += continuationLine
}
if hasEmptyContinuationLine {
warnings = append(warnings, Warning{
Short: "Empty continuation line found in: " + line,
Detail: [][]byte{[]byte("Empty continuation lines will become errors in a future release")},
URL: "https://github.com/moby/moby/pull/33719",
Location: &Range{Start: Position{Line: currentLine}, End: Position{Line: currentLine}},
})
}
child, err := newNodeFromLine(line, d, comments)
if err != nil {
return nil, withLocation(err, startLine, currentLine)
}
if child.canContainHeredoc() {
heredocs, err := heredocsFromLine(line)
if err != nil {
return nil, withLocation(err, startLine, currentLine)
}
for _, heredoc := range heredocs {
terminator := []byte(heredoc.Name)
terminated := false
for scanner.Scan() {
bytesRead := scanner.Bytes()
currentLine++
possibleTerminator := trimNewline(bytesRead)
if heredoc.Chomp {
possibleTerminator = trimLeadingTabs(possibleTerminator)
}
if bytes.Equal(possibleTerminator, terminator) {
terminated = true
break
}
heredoc.Content += string(bytesRead)
}
if !terminated {
return nil, withLocation(errors.New("unterminated heredoc"), startLine, currentLine)
}
child.Heredocs = append(child.Heredocs, heredoc)
}
}
root.AddChild(child, startLine, currentLine)
comments = nil
}
if root.StartLine < 0 {
return nil, withLocation(errors.New("file with no instructions"), currentLine, 0)
}
return &Result{
AST: root,
Warnings: warnings,
EscapeToken: d.escapeToken,
}, withLocation(handleScannerError(scanner.Err()), currentLine, 0)
}
// Extracts a heredoc from a possible heredoc regex match
func heredocFromMatch(match []string) (*Heredoc, error) {
if len(match) == 0 {
return nil, nil
}
fd, _ := strconv.ParseUint(match[1], 10, 0)
chomp := match[2] == "-"
rest := match[3]
if len(rest) == 0 {
return nil, nil
}
shlex := shell.NewLex('\\')
shlex.SkipUnsetEnv = true
// Attempt to parse both the heredoc both with *and* without quotes.
// If there are quotes in one but not the other, then we know that some
// part of the heredoc word is quoted, so we shouldn't expand the content.
shlex.RawQuotes = false
words, err := shlex.ProcessWords(rest, []string{})
if err != nil {
return nil, err
}
// quick sanity check that rest is a single word
if len(words) != 1 {
return nil, nil
}
shlex.RawQuotes = true
wordsRaw, err := shlex.ProcessWords(rest, []string{})
if err != nil {
return nil, err
}
if len(wordsRaw) != len(words) {
return nil, fmt.Errorf("internal lexing of heredoc produced inconsistent results: %s", rest)
}
word := words[0]
wordQuoteCount := strings.Count(word, `'`) + strings.Count(word, `"`)
wordRaw := wordsRaw[0]
wordRawQuoteCount := strings.Count(wordRaw, `'`) + strings.Count(wordRaw, `"`)
expand := wordQuoteCount == wordRawQuoteCount
return &Heredoc{
Name: word,
Expand: expand,
Chomp: chomp,
FileDescriptor: uint(fd),
}, nil
}
func ParseHeredoc(src string) (*Heredoc, error) {
return heredocFromMatch(reHeredoc.FindStringSubmatch(src))
}
func MustParseHeredoc(src string) *Heredoc {
heredoc, _ := ParseHeredoc(src)
return heredoc
}
func heredocsFromLine(line string) ([]Heredoc, error) {
shlex := shell.NewLex('\\')
shlex.RawQuotes = true
shlex.RawEscapes = true
shlex.SkipUnsetEnv = true
words, _ := shlex.ProcessWords(line, []string{})
var docs []Heredoc
for _, word := range words {
heredoc, err := ParseHeredoc(word)
if err != nil {
return nil, err
}
if heredoc != nil {
docs = append(docs, *heredoc)
}
}
return docs, nil
}
func ChompHeredocContent(src string) string {
return reLeadingTabs.ReplaceAllString(src, "")
}
func trimComments(src []byte) []byte {
return reComment.ReplaceAll(src, []byte{})
}
func trimLeadingWhitespace(src []byte) []byte {
return bytes.TrimLeftFunc(src, unicode.IsSpace)
}
func trimLeadingTabs(src []byte) []byte {
return bytes.TrimLeft(src, "\t")
}
func trimNewline(src []byte) []byte {
return bytes.TrimRight(src, "\r\n")
}
func isComment(line []byte) bool {
return reComment.Match(trimLeadingWhitespace(trimNewline(line)))
}
func isEmptyContinuationLine(line []byte) bool {
return len(trimLeadingWhitespace(trimNewline(line))) == 0
}
var utf8bom = []byte{0xEF, 0xBB, 0xBF}
func trimContinuationCharacter(line string, d *directives) (string, bool) {
if d.lineContinuationRegex.MatchString(line) {
line = d.lineContinuationRegex.ReplaceAllString(line, "$1")
return line, false
}
return line, true
}
// TODO: remove stripLeftWhitespace after deprecation period. It seems silly
// to preserve whitespace on continuation lines. Why is that done?
func processLine(d *directives, token []byte, stripLeftWhitespace bool) ([]byte, error) {
token = trimNewline(token)
if stripLeftWhitespace {
token = trimLeadingWhitespace(token)
}
return trimComments(token), d.possibleParserDirective(string(token))
}
// Variation of bufio.ScanLines that preserves the line endings
func scanLines(data []byte, atEOF bool) (advance int, token []byte, err error) {
if atEOF && len(data) == 0 {
return 0, nil, nil
}
if i := bytes.IndexByte(data, '\n'); i >= 0 {
return i + 1, data[0 : i+1], nil
}
if atEOF {
return len(data), data, nil
}
return 0, nil, nil
}
func handleScannerError(err error) error {
switch err {
case bufio.ErrTooLong:
return errors.Errorf("dockerfile line greater than max allowed size of %d", bufio.MaxScanTokenSize-1)
default:
return err
}
}

View File

@@ -0,0 +1,117 @@
package parser
import (
"strings"
"unicode"
)
// splitCommand takes a single line of text and parses out the cmd and args,
// which are used for dispatching to more exact parsing functions.
func splitCommand(line string) (string, []string, string, error) {
var args string
var flags []string
// Make sure we get the same results irrespective of leading/trailing spaces
cmdline := reWhitespace.Split(strings.TrimSpace(line), 2)
if len(cmdline) == 2 {
var err error
args, flags, err = extractBuilderFlags(cmdline[1])
if err != nil {
return "", nil, "", err
}
}
return cmdline[0], flags, strings.TrimSpace(args), nil
}
func extractBuilderFlags(line string) (string, []string, error) {
// Parses the BuilderFlags and returns the remaining part of the line
const (
inSpaces = iota // looking for start of a word
inWord
inQuote
)
words := []string{}
phase := inSpaces
word := ""
quote := '\000'
blankOK := false
var ch rune
for pos := 0; pos <= len(line); pos++ {
if pos != len(line) {
ch = rune(line[pos])
}
if phase == inSpaces { // Looking for start of word
if pos == len(line) { // end of input
break
}
if unicode.IsSpace(ch) { // skip spaces
continue
}
// Only keep going if the next word starts with --
if ch != '-' || pos+1 == len(line) || rune(line[pos+1]) != '-' {
return line[pos:], words, nil
}
phase = inWord // found something with "--", fall through
}
if (phase == inWord || phase == inQuote) && (pos == len(line)) {
if word != "--" && (blankOK || len(word) > 0) {
words = append(words, word)
}
break
}
if phase == inWord {
if unicode.IsSpace(ch) {
phase = inSpaces
if word == "--" {
return line[pos:], words, nil
}
if blankOK || len(word) > 0 {
words = append(words, word)
}
word = ""
blankOK = false
continue
}
if ch == '\'' || ch == '"' {
quote = ch
blankOK = true
phase = inQuote
continue
}
if ch == '\\' {
if pos+1 == len(line) {
continue // just skip \ at end
}
pos++
ch = rune(line[pos])
}
word += string(ch)
continue
}
if phase == inQuote {
if ch == quote {
phase = inWord
continue
}
if ch == '\\' {
if pos+1 == len(line) {
phase = inWord
continue // just skip \ at end
}
pos++
ch = rune(line[pos])
}
word += string(ch)
}
}
return "", words, nil
}

View File

@@ -0,0 +1,238 @@
A|hello | hello
A|he'll'o | hello
A|he'llo | error
A|he\'llo | he'llo
A|he\\'llo | error
A|abc\tdef | abctdef
A|"abc\tdef" | abc\tdef
A|"abc\\tdef" | abc\tdef
A|'abc\tdef' | abc\tdef
A|hello\ | hello
A|hello\\ | hello\
A|"hello | error
A|"hello\" | error
A|"hel'lo" | hel'lo
A|'hello | error
A|'hello\' | hello\
A|'hello\there' | hello\there
A|'hello\\there' | hello\\there
A|"''" | ''
A|$. | $.
A|he$1x | hex
A|he$.x | he$.x
# Next one is different on Windows as $pwd==$PWD
U|he$pwd. | he.
W|he$pwd. | he/home.
A|he$PWD | he/home
A|he\$PWD | he$PWD
A|he\\$PWD | he\/home
A|"he\$PWD" | he$PWD
A|"he\\$PWD" | he\/home
A|\${} | ${}
A|\${}aaa | ${}aaa
A|he\${} | he${}
A|he\${}xx | he${}xx
A|${} | error
A|${}aaa | error
A|he${} | error
A|he${}xx | error
A|he${hi} | he
A|he${hi}xx | hexx
A|he${PWD} | he/home
A|he${.} | error
A|he${XXX:-000}xx | he000xx
A|he${PWD:-000}xx | he/homexx
A|he${XXX:-$PWD}xx | he/homexx
A|he${XXX:-${PWD:-yyy}}xx | he/homexx
A|he${XXX:-${YYY:-yyy}}xx | heyyyxx
A|he${XXX:YYY} | error
A|he${XXX?} | error
A|he${XXX:?} | error
A|he${PWD?} | he/home
A|he${PWD:?} | he/home
A|he${NULL?} | he
A|he${NULL:?} | error
A|he${XXX:+${PWD}}xx | hexx
A|he${PWD:+${XXX}}xx | hexx
A|he${PWD:+${SHELL}}xx | hebashxx
A|he${XXX:+000}xx | hexx
A|he${PWD:+000}xx | he000xx
A|'he${XX}' | he${XX}
A|"he${PWD}" | he/home
A|"he'$PWD'" | he'/home'
A|"$PWD" | /home
A|'$PWD' | $PWD
A|'\$PWD' | \$PWD
A|'"hello"' | "hello"
A|he\$PWD | he$PWD
A|"he\$PWD" | he$PWD
A|'he\$PWD' | he\$PWD
A|he${PWD | error
A|he${PWD:=000}xx | error
A|he${PWD:+${PWD}:}xx | he/home:xx
A|he${XXX:-\$PWD:}xx | he$PWD:xx
A|he${XXX:-\${PWD}z}xx | he${PWDz}xx
A|안녕하세요 | 안녕하세요
A|안'녕'하세요 | 안녕하세요
A|안'녕하세요 | error
A|안녕\'하세요 | 안녕'하세요
A|안\\'녕하세요 | error
A|안녕\t하세요 | 안녕t하세요
A|"안녕\t하세요" | 안녕\t하세요
A|'안녕\t하세요 | error
A|안녕하세요\ | 안녕하세요
A|안녕하세요\\ | 안녕하세요\
A|"안녕하세요 | error
A|"안녕하세요\" | error
A|"안녕'하세요" | 안녕'하세요
A|'안녕하세요 | error
A|'안녕하세요\' | 안녕하세요\
A|안녕$1x | 안녕x
A|안녕$.x | 안녕$.x
# Next one is different on Windows as $pwd==$PWD
U|안녕$pwd. | 안녕.
W|안녕$pwd. | 안녕/home.
A|안녕$PWD | 안녕/home
A|안녕\$PWD | 안녕$PWD
A|안녕\\$PWD | 안녕\/home
A|안녕\${} | 안녕${}
A|안녕\${}xx | 안녕${}xx
A|안녕${} | error
A|안녕${}xx | error
A|안녕${hi} | 안녕
A|안녕${hi}xx | 안녕xx
A|안녕${PWD} | 안녕/home
A|안녕${.} | error
A|안녕${XXX:-000}xx | 안녕000xx
A|안녕${PWD:-000}xx | 안녕/homexx
A|안녕${XXX:-$PWD}xx | 안녕/homexx
A|안녕${XXX:-${PWD:-yyy}}xx | 안녕/homexx
A|안녕${XXX:-${YYY:-yyy}}xx | 안녕yyyxx
A|안녕${XXX:YYY} | error
A|안녕${XXX:+${PWD}}xx | 안녕xx
A|안녕${PWD:+${XXX}}xx | 안녕xx
A|안녕${PWD:+${SHELL}}xx | 안녕bashxx
A|안녕${XXX:+000}xx | 안녕xx
A|안녕${PWD:+000}xx | 안녕000xx
A|'안녕${XX}' | 안녕${XX}
A|"안녕${PWD}" | 안녕/home
A|"안녕'$PWD'" | 안녕'/home'
A|'"안녕"' | "안녕"
A|안녕\$PWD | 안녕$PWD
A|"안녕\$PWD" | 안녕$PWD
A|'안녕\$PWD' | 안녕\$PWD
A|안녕${PWD | error
A|안녕${PWD:=000}xx | error
A|안녕${PWD:+${PWD}:}xx | 안녕/home:xx
A|안녕${XXX:-\$PWD:}xx | 안녕$PWD:xx
A|안녕${XXX:-\${PWD}z}xx | 안녕${PWDz}xx
A|$KOREAN | 한국어
A|안녕$KOREAN | 안녕한국어
A|${{aaa} | error
A|${aaa}} | }
A|${aaa | error
A|${{aaa:-bbb} | error
A|${aaa:-bbb}} | bbb}
A|${aaa:-bbb | error
A|${aaa:-bbb} | bbb
A|${aaa:-${bbb:-ccc}} | ccc
A|${aaa:-bbb ${foo} | error
A|${aaa:-bbb {foo} | bbb {foo
A|${:} | error
A|${:-bbb} | error
A|${:+bbb} | error
# Positional parameters won't be set:
# http://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_05_01
A|$1 |
A|${1} |
A|${1:+bbb} |
A|${1:-bbb} | bbb
A|$2 |
A|${2} |
A|${2:+bbb} |
A|${2:-bbb} | bbb
A|$3 |
A|${3} |
A|${3:+bbb} |
A|${3:-bbb} | bbb
A|$4 |
A|${4} |
A|${4:+bbb} |
A|${4:-bbb} | bbb
A|$5 |
A|${5} |
A|${5:+bbb} |
A|${5:-bbb} | bbb
A|$6 |
A|${6} |
A|${6:+bbb} |
A|${6:-bbb} | bbb
A|$7 |
A|${7} |
A|${7:+bbb} |
A|${7:-bbb} | bbb
A|$8 |
A|${8} |
A|${8:+bbb} |
A|${8:-bbb} | bbb
A|$9 |
A|${9} |
A|${9:+bbb} |
A|${9:-bbb} | bbb
A|$999 |
A|${999} |
A|${999:+bbb} |
A|${999:-bbb} | bbb
A|$999aaa | aaa
A|${999}aaa | aaa
A|${999:+bbb}aaa | aaa
A|${999:-bbb}aaa | bbbaaa
A|$001 |
A|${001} |
A|${001:+bbb} |
A|${001:-bbb} | bbb
A|$001aaa | aaa
A|${001}aaa | aaa
A|${001:+bbb}aaa | aaa
A|${001:-bbb}aaa | bbbaaa
# Special parameters won't be set in the Dockerfile:
# http://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_05_02
A|$@ |
A|${@} |
A|${@:+bbb} |
A|${@:-bbb} | bbb
A|$@@@ | @@
A|$@aaa | aaa
A|${@}aaa | aaa
A|${@:+bbb}aaa | aaa
A|${@:-bbb}aaa | bbbaaa
A|$* |
A|${*} |
A|${*:+bbb} |
A|${*:-bbb} | bbb
A|$# |
A|${#} |
A|${#:+bbb} |
A|${#:-bbb} | bbb
A|$? |
A|${?} |
A|${?:+bbb} |
A|${?:-bbb} | bbb
A|$- |
A|${-} |
A|${-:+bbb} |
A|${-:-bbb} | bbb
A|$$ |
A|${$} |
A|${$:+bbb} |
A|${$:-bbb} | bbb
A|$! |
A|${!} |
A|${!:+bbb} |
A|${!:-bbb} | bbb
A|$0 |
A|${0} |
A|${0:+bbb} |
A|${0:-bbb} | bbb

View File

@@ -0,0 +1,11 @@
//go:build !windows
// +build !windows
package shell
// EqualEnvKeys compare two strings and returns true if they are equal.
// On Unix this comparison is case sensitive.
// On Windows this comparison is case insensitive.
func EqualEnvKeys(from, to string) bool {
return from == to
}

View File

@@ -0,0 +1,10 @@
package shell
import "strings"
// EqualEnvKeys compare two strings and returns true if they are equal.
// On Unix this comparison is case sensitive.
// On Windows this comparison is case insensitive.
func EqualEnvKeys(from, to string) bool {
return strings.ToUpper(from) == strings.ToUpper(to)
}

View File

@@ -0,0 +1,499 @@
package shell
import (
"bytes"
"fmt"
"strings"
"text/scanner"
"unicode"
"github.com/pkg/errors"
)
// Lex performs shell word splitting and variable expansion.
//
// Lex takes a string and an array of env variables and
// process all quotes (" and ') as well as $xxx and ${xxx} env variable
// tokens. Tries to mimic bash shell process.
// It doesn't support all flavors of ${xx:...} formats but new ones can
// be added by adding code to the "special ${} format processing" section
type Lex struct {
escapeToken rune
RawQuotes bool
RawEscapes bool
SkipProcessQuotes bool
SkipUnsetEnv bool
}
// NewLex creates a new Lex which uses escapeToken to escape quotes.
func NewLex(escapeToken rune) *Lex {
return &Lex{escapeToken: escapeToken}
}
// ProcessWord will use the 'env' list of environment variables,
// and replace any env var references in 'word'.
func (s *Lex) ProcessWord(word string, env []string) (string, error) {
word, _, err := s.process(word, BuildEnvs(env))
return word, err
}
// ProcessWords will use the 'env' list of environment variables,
// and replace any env var references in 'word' then it will also
// return a slice of strings which represents the 'word'
// split up based on spaces - taking into account quotes. Note that
// this splitting is done **after** the env var substitutions are done.
// Note, each one is trimmed to remove leading and trailing spaces (unless
// they are quoted", but ProcessWord retains spaces between words.
func (s *Lex) ProcessWords(word string, env []string) ([]string, error) {
_, words, err := s.process(word, BuildEnvs(env))
return words, err
}
// ProcessWordWithMap will use the 'env' list of environment variables,
// and replace any env var references in 'word'.
func (s *Lex) ProcessWordWithMap(word string, env map[string]string) (string, error) {
word, _, err := s.process(word, env)
return word, err
}
// ProcessWordWithMatches will use the 'env' list of environment variables,
// replace any env var references in 'word' and return the env that were used.
func (s *Lex) ProcessWordWithMatches(word string, env map[string]string) (string, map[string]struct{}, error) {
sw := s.init(word, env)
word, _, err := sw.process(word)
return word, sw.matches, err
}
func (s *Lex) ProcessWordsWithMap(word string, env map[string]string) ([]string, error) {
_, words, err := s.process(word, env)
return words, err
}
func (s *Lex) init(word string, env map[string]string) *shellWord {
sw := &shellWord{
envs: env,
escapeToken: s.escapeToken,
skipUnsetEnv: s.SkipUnsetEnv,
skipProcessQuotes: s.SkipProcessQuotes,
rawQuotes: s.RawQuotes,
rawEscapes: s.RawEscapes,
matches: make(map[string]struct{}),
}
sw.scanner.Init(strings.NewReader(word))
return sw
}
func (s *Lex) process(word string, env map[string]string) (string, []string, error) {
sw := s.init(word, env)
return sw.process(word)
}
type shellWord struct {
scanner scanner.Scanner
envs map[string]string
escapeToken rune
rawQuotes bool
rawEscapes bool
skipUnsetEnv bool
skipProcessQuotes bool
matches map[string]struct{}
}
func (sw *shellWord) process(source string) (string, []string, error) {
word, words, err := sw.processStopOn(scanner.EOF)
if err != nil {
err = errors.Wrapf(err, "failed to process %q", source)
}
return word, words, err
}
type wordsStruct struct {
word string
words []string
inWord bool
}
func (w *wordsStruct) addChar(ch rune) {
if unicode.IsSpace(ch) && w.inWord {
if len(w.word) != 0 {
w.words = append(w.words, w.word)
w.word = ""
w.inWord = false
}
} else if !unicode.IsSpace(ch) {
w.addRawChar(ch)
}
}
func (w *wordsStruct) addRawChar(ch rune) {
w.word += string(ch)
w.inWord = true
}
func (w *wordsStruct) addString(str string) {
for _, ch := range str {
w.addChar(ch)
}
}
func (w *wordsStruct) addRawString(str string) {
w.word += str
w.inWord = true
}
func (w *wordsStruct) getWords() []string {
if len(w.word) > 0 {
w.words = append(w.words, w.word)
// Just in case we're called again by mistake
w.word = ""
w.inWord = false
}
return w.words
}
// Process the word, starting at 'pos', and stop when we get to the
// end of the word or the 'stopChar' character
func (sw *shellWord) processStopOn(stopChar rune) (string, []string, error) {
var result bytes.Buffer
var words wordsStruct
var charFuncMapping = map[rune]func() (string, error){
'$': sw.processDollar,
}
if !sw.skipProcessQuotes {
charFuncMapping['\''] = sw.processSingleQuote
charFuncMapping['"'] = sw.processDoubleQuote
}
for sw.scanner.Peek() != scanner.EOF {
ch := sw.scanner.Peek()
if stopChar != scanner.EOF && ch == stopChar {
sw.scanner.Next()
return result.String(), words.getWords(), nil
}
if fn, ok := charFuncMapping[ch]; ok {
// Call special processing func for certain chars
tmp, err := fn()
if err != nil {
return "", []string{}, err
}
result.WriteString(tmp)
if ch == rune('$') {
words.addString(tmp)
} else {
words.addRawString(tmp)
}
} else {
// Not special, just add it to the result
ch = sw.scanner.Next()
if ch == sw.escapeToken {
if sw.rawEscapes {
words.addRawChar(ch)
result.WriteRune(ch)
}
// '\' (default escape token, but ` allowed) escapes, except end of line
ch = sw.scanner.Next()
if ch == scanner.EOF {
break
}
words.addRawChar(ch)
} else {
words.addChar(ch)
}
result.WriteRune(ch)
}
}
if stopChar != scanner.EOF {
return "", []string{}, errors.Errorf("unexpected end of statement while looking for matching %s", string(stopChar))
}
return result.String(), words.getWords(), nil
}
func (sw *shellWord) processSingleQuote() (string, error) {
// All chars between single quotes are taken as-is
// Note, you can't escape '
//
// From the "sh" man page:
// Single Quotes
// Enclosing characters in single quotes preserves the literal meaning of
// all the characters (except single quotes, making it impossible to put
// single-quotes in a single-quoted string).
var result bytes.Buffer
ch := sw.scanner.Next()
if sw.rawQuotes {
result.WriteRune(ch)
}
for {
ch = sw.scanner.Next()
switch ch {
case scanner.EOF:
return "", errors.New("unexpected end of statement while looking for matching single-quote")
case '\'':
if sw.rawQuotes {
result.WriteRune(ch)
}
return result.String(), nil
}
result.WriteRune(ch)
}
}
func (sw *shellWord) processDoubleQuote() (string, error) {
// All chars up to the next " are taken as-is, even ', except any $ chars
// But you can escape " with a \ (or ` if escape token set accordingly)
//
// From the "sh" man page:
// Double Quotes
// Enclosing characters within double quotes preserves the literal meaning
// of all characters except dollarsign ($), backquote (`), and backslash
// (\). The backslash inside double quotes is historically weird, and
// serves to quote only the following characters:
// $ ` " \ <newline>.
// Otherwise it remains literal.
var result bytes.Buffer
ch := sw.scanner.Next()
if sw.rawQuotes {
result.WriteRune(ch)
}
for {
switch sw.scanner.Peek() {
case scanner.EOF:
return "", errors.New("unexpected end of statement while looking for matching double-quote")
case '"':
ch := sw.scanner.Next()
if sw.rawQuotes {
result.WriteRune(ch)
}
return result.String(), nil
case '$':
value, err := sw.processDollar()
if err != nil {
return "", err
}
result.WriteString(value)
default:
ch := sw.scanner.Next()
if ch == sw.escapeToken {
if sw.rawEscapes {
result.WriteRune(ch)
}
switch sw.scanner.Peek() {
case scanner.EOF:
// Ignore \ at end of word
continue
case '"', '$', sw.escapeToken:
// These chars can be escaped, all other \'s are left as-is
// Note: for now don't do anything special with ` chars.
// Not sure what to do with them anyway since we're not going
// to execute the text in there (not now anyway).
ch = sw.scanner.Next()
}
}
result.WriteRune(ch)
}
}
}
func (sw *shellWord) processDollar() (string, error) {
sw.scanner.Next()
// $xxx case
if sw.scanner.Peek() != '{' {
name := sw.processName()
if name == "" {
return "$", nil
}
value, found := sw.getEnv(name)
if !found && sw.skipUnsetEnv {
return "$" + name, nil
}
return value, nil
}
sw.scanner.Next()
switch sw.scanner.Peek() {
case scanner.EOF:
return "", errors.New("syntax error: missing '}'")
case '{', '}', ':':
// Invalid ${{xx}, ${:xx}, ${:}. ${} case
return "", errors.New("syntax error: bad substitution")
}
name := sw.processName()
ch := sw.scanner.Next()
switch ch {
case '}':
// Normal ${xx} case
value, found := sw.getEnv(name)
if !found && sw.skipUnsetEnv {
return fmt.Sprintf("${%s}", name), nil
}
return value, nil
case '?':
word, _, err := sw.processStopOn('}')
if err != nil {
if sw.scanner.Peek() == scanner.EOF {
return "", errors.New("syntax error: missing '}'")
}
return "", err
}
newValue, found := sw.getEnv(name)
if !found {
if sw.skipUnsetEnv {
return fmt.Sprintf("${%s?%s}", name, word), nil
}
message := "is not allowed to be unset"
if word != "" {
message = word
}
return "", errors.Errorf("%s: %s", name, message)
}
return newValue, nil
case ':':
// Special ${xx:...} format processing
// Yes it allows for recursive $'s in the ... spot
modifier := sw.scanner.Next()
word, _, err := sw.processStopOn('}')
if err != nil {
if sw.scanner.Peek() == scanner.EOF {
return "", errors.New("syntax error: missing '}'")
}
return "", err
}
// Grab the current value of the variable in question so we
// can use to to determine what to do based on the modifier
newValue, found := sw.getEnv(name)
switch modifier {
case '+':
if newValue != "" {
newValue = word
}
if !found && sw.skipUnsetEnv {
return fmt.Sprintf("${%s:%s%s}", name, string(modifier), word), nil
}
return newValue, nil
case '-':
if newValue == "" {
newValue = word
}
if !found && sw.skipUnsetEnv {
return fmt.Sprintf("${%s:%s%s}", name, string(modifier), word), nil
}
return newValue, nil
case '?':
if !found {
if sw.skipUnsetEnv {
return fmt.Sprintf("${%s:%s%s}", name, string(modifier), word), nil
}
message := "is not allowed to be unset"
if word != "" {
message = word
}
return "", errors.Errorf("%s: %s", name, message)
}
if newValue == "" {
message := "is not allowed to be empty"
if word != "" {
message = word
}
return "", errors.Errorf("%s: %s", name, message)
}
return newValue, nil
default:
return "", errors.Errorf("unsupported modifier (%c) in substitution", modifier)
}
}
return "", errors.Errorf("missing ':' in substitution")
}
func (sw *shellWord) processName() string {
// Read in a name (alphanumeric or _)
// If it starts with a numeric then just return $#
var name bytes.Buffer
for sw.scanner.Peek() != scanner.EOF {
ch := sw.scanner.Peek()
if name.Len() == 0 && unicode.IsDigit(ch) {
for sw.scanner.Peek() != scanner.EOF && unicode.IsDigit(sw.scanner.Peek()) {
// Keep reading until the first non-digit character, or EOF
ch = sw.scanner.Next()
name.WriteRune(ch)
}
return name.String()
}
if name.Len() == 0 && isSpecialParam(ch) {
ch = sw.scanner.Next()
return string(ch)
}
if !unicode.IsLetter(ch) && !unicode.IsDigit(ch) && ch != '_' {
break
}
ch = sw.scanner.Next()
name.WriteRune(ch)
}
return name.String()
}
// isSpecialParam checks if the provided character is a special parameters,
// as defined in http://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_05_02
func isSpecialParam(char rune) bool {
switch char {
case '@', '*', '#', '?', '-', '$', '!', '0':
// Special parameters
// http://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_05_02
return true
}
return false
}
func (sw *shellWord) getEnv(name string) (string, bool) {
for key, value := range sw.envs {
if EqualEnvKeys(name, key) {
sw.matches[name] = struct{}{}
return value, true
}
}
return "", false
}
func BuildEnvs(env []string) map[string]string {
envs := map[string]string{}
for _, e := range env {
i := strings.Index(e, "=")
if i < 0 {
envs[e] = ""
} else {
k := e[:i]
v := e[i+1:]
// overwrite value if key already exists
envs[k] = v
}
}
return envs
}

View File

@@ -0,0 +1,30 @@
hello | hello
hello${hi}bye | hellobye
ENV hi=hi
hello${hi}bye | hellohibye
ENV space=abc def
hello${space}bye | helloabc,defbye
hello"${space}"bye | helloabc defbye
hello "${space}"bye | hello,abc defbye
ENV leading= ab c
hello${leading}def | hello,ab,cdef
hello"${leading}" def | hello ab c,def
hello"${leading}" | hello ab c
hello${leading} | hello,ab,c
# next line MUST have 3 trailing spaces, don't erase them!
ENV trailing=ab c
hello${trailing} | helloab,c
hello${trailing}d | helloab,c,d
hello"${trailing}"d | helloab c d
# next line MUST have 3 trailing spaces, don't erase them!
hel"lo${trailing}" | helloab c
hello" there " | hello there
hello there | hello,there
hello\ there | hello there
hello" there | error
hello\" there | hello",there
hello"\\there" | hello\there
hello"\there" | hello\there
hello'\\there' | hello\\there
hello'\there' | hello\there
hello'$there' | hello$there

View File

@@ -0,0 +1,3 @@
package stack
//go:generate protoc -I=. -I=../../vendor/ --go_out=. --go_opt=paths=source_relative --go_opt=Mstack.proto=/util/stack stack.proto

182
vendor/github.com/moby/buildkit/util/stack/stack.go generated vendored Normal file
View File

@@ -0,0 +1,182 @@
package stack
import (
"fmt"
io "io"
"os"
"runtime"
"strconv"
"strings"
"sync"
"github.com/containerd/typeurl"
"github.com/pkg/errors"
)
var helpers map[string]struct{}
var helpersMu sync.RWMutex
func init() {
typeurl.Register((*Stack)(nil), "github.com/moby/buildkit", "stack.Stack+json")
helpers = map[string]struct{}{}
}
var version string
var revision string
func SetVersionInfo(v, r string) {
version = v
revision = r
}
func Helper() {
var pc [1]uintptr
n := runtime.Callers(2, pc[:])
if n == 0 {
return
}
frames := runtime.CallersFrames(pc[:n])
frame, _ := frames.Next()
helpersMu.Lock()
helpers[frame.Function] = struct{}{}
helpersMu.Unlock()
}
func Traces(err error) []*Stack {
var st []*Stack
wrapped, ok := err.(interface {
Unwrap() error
})
if ok {
st = Traces(wrapped.Unwrap())
}
if ste, ok := err.(interface {
StackTrace() errors.StackTrace
}); ok {
st = append(st, convertStack(ste.StackTrace()))
}
if ste, ok := err.(interface {
StackTrace() *Stack
}); ok {
st = append(st, ste.StackTrace())
}
return st
}
func Enable(err error) error {
if err == nil {
return nil
}
Helper()
if !hasLocalStackTrace(err) {
return errors.WithStack(err)
}
return err
}
func Wrap(err error, s Stack) error {
return &withStack{stack: s, error: err}
}
func hasLocalStackTrace(err error) bool {
wrapped, ok := err.(interface {
Unwrap() error
})
if ok && hasLocalStackTrace(wrapped.Unwrap()) {
return true
}
_, ok = err.(interface {
StackTrace() errors.StackTrace
})
return ok
}
func Formatter(err error) fmt.Formatter {
return &formatter{err}
}
type formatter struct {
error
}
func (w *formatter) Format(s fmt.State, verb rune) {
if w.error == nil {
fmt.Fprintf(s, "%v", w.error)
return
}
switch verb {
case 'v':
if s.Flag('+') {
fmt.Fprintf(s, "%s\n", w.Error())
for _, stack := range Traces(w.error) {
fmt.Fprintf(s, "%d %s %s\n", stack.Pid, stack.Version, strings.Join(stack.Cmdline, " "))
for _, f := range stack.Frames {
fmt.Fprintf(s, "%s\n\t%s:%d\n", f.Name, f.File, f.Line)
}
fmt.Fprintln(s)
}
return
}
fallthrough
case 's':
io.WriteString(s, w.Error())
case 'q':
fmt.Fprintf(s, "%q", w.Error())
}
}
func convertStack(s errors.StackTrace) *Stack {
var out Stack
helpersMu.RLock()
defer helpersMu.RUnlock()
for _, f := range s {
dt, err := f.MarshalText()
if err != nil {
continue
}
p := strings.SplitN(string(dt), " ", 2)
if len(p) != 2 {
continue
}
if _, ok := helpers[p[0]]; ok {
continue
}
idx := strings.LastIndexByte(p[1], ':')
if idx == -1 {
continue
}
line, err := strconv.Atoi(p[1][idx+1:])
if err != nil {
continue
}
out.Frames = append(out.Frames, &Frame{
Name: p[0],
File: p[1][:idx],
Line: int32(line),
})
}
out.Cmdline = os.Args
out.Pid = int32(os.Getpid())
out.Version = version
out.Revision = revision
return &out
}
type withStack struct {
stack Stack
error
}
func (e *withStack) Unwrap() error {
return e.error
}
func (e *withStack) StackTrace() *Stack {
return &e.stack
}

172
vendor/github.com/moby/buildkit/util/stack/stack.pb.go generated vendored Normal file
View File

@@ -0,0 +1,172 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// source: stack.proto
package stack
import (
fmt "fmt"
proto "github.com/golang/protobuf/proto"
math "math"
)
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
// This is a compile-time assertion to ensure that this generated file
// is compatible with the proto package it is being compiled against.
// A compilation error at this line likely means your copy of the
// proto package needs to be updated.
const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
type Stack struct {
Frames []*Frame `protobuf:"bytes,1,rep,name=frames,proto3" json:"frames,omitempty"`
Cmdline []string `protobuf:"bytes,2,rep,name=cmdline,proto3" json:"cmdline,omitempty"`
Pid int32 `protobuf:"varint,3,opt,name=pid,proto3" json:"pid,omitempty"`
Version string `protobuf:"bytes,4,opt,name=version,proto3" json:"version,omitempty"`
Revision string `protobuf:"bytes,5,opt,name=revision,proto3" json:"revision,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Stack) Reset() { *m = Stack{} }
func (m *Stack) String() string { return proto.CompactTextString(m) }
func (*Stack) ProtoMessage() {}
func (*Stack) Descriptor() ([]byte, []int) {
return fileDescriptor_b44c07feb2ca0a5a, []int{0}
}
func (m *Stack) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Stack.Unmarshal(m, b)
}
func (m *Stack) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Stack.Marshal(b, m, deterministic)
}
func (m *Stack) XXX_Merge(src proto.Message) {
xxx_messageInfo_Stack.Merge(m, src)
}
func (m *Stack) XXX_Size() int {
return xxx_messageInfo_Stack.Size(m)
}
func (m *Stack) XXX_DiscardUnknown() {
xxx_messageInfo_Stack.DiscardUnknown(m)
}
var xxx_messageInfo_Stack proto.InternalMessageInfo
func (m *Stack) GetFrames() []*Frame {
if m != nil {
return m.Frames
}
return nil
}
func (m *Stack) GetCmdline() []string {
if m != nil {
return m.Cmdline
}
return nil
}
func (m *Stack) GetPid() int32 {
if m != nil {
return m.Pid
}
return 0
}
func (m *Stack) GetVersion() string {
if m != nil {
return m.Version
}
return ""
}
func (m *Stack) GetRevision() string {
if m != nil {
return m.Revision
}
return ""
}
type Frame struct {
Name string `protobuf:"bytes,1,opt,name=Name,proto3" json:"Name,omitempty"`
File string `protobuf:"bytes,2,opt,name=File,proto3" json:"File,omitempty"`
Line int32 `protobuf:"varint,3,opt,name=Line,proto3" json:"Line,omitempty"`
XXX_NoUnkeyedLiteral struct{} `json:"-"`
XXX_unrecognized []byte `json:"-"`
XXX_sizecache int32 `json:"-"`
}
func (m *Frame) Reset() { *m = Frame{} }
func (m *Frame) String() string { return proto.CompactTextString(m) }
func (*Frame) ProtoMessage() {}
func (*Frame) Descriptor() ([]byte, []int) {
return fileDescriptor_b44c07feb2ca0a5a, []int{1}
}
func (m *Frame) XXX_Unmarshal(b []byte) error {
return xxx_messageInfo_Frame.Unmarshal(m, b)
}
func (m *Frame) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
return xxx_messageInfo_Frame.Marshal(b, m, deterministic)
}
func (m *Frame) XXX_Merge(src proto.Message) {
xxx_messageInfo_Frame.Merge(m, src)
}
func (m *Frame) XXX_Size() int {
return xxx_messageInfo_Frame.Size(m)
}
func (m *Frame) XXX_DiscardUnknown() {
xxx_messageInfo_Frame.DiscardUnknown(m)
}
var xxx_messageInfo_Frame proto.InternalMessageInfo
func (m *Frame) GetName() string {
if m != nil {
return m.Name
}
return ""
}
func (m *Frame) GetFile() string {
if m != nil {
return m.File
}
return ""
}
func (m *Frame) GetLine() int32 {
if m != nil {
return m.Line
}
return 0
}
func init() {
proto.RegisterType((*Stack)(nil), "stack.Stack")
proto.RegisterType((*Frame)(nil), "stack.Frame")
}
func init() {
proto.RegisterFile("stack.proto", fileDescriptor_b44c07feb2ca0a5a)
}
var fileDescriptor_b44c07feb2ca0a5a = []byte{
// 185 bytes of a gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x3c, 0x8f, 0x3d, 0xce, 0x82, 0x40,
0x10, 0x86, 0xb3, 0xdf, 0xb2, 0x7c, 0x3a, 0x58, 0x98, 0xa9, 0x36, 0x56, 0x1b, 0x62, 0x41, 0x45,
0xa1, 0x47, 0x30, 0xa1, 0x32, 0x16, 0x78, 0x02, 0x84, 0x35, 0xd9, 0xc8, 0x5f, 0x76, 0x09, 0xd7,
0xf0, 0xca, 0x66, 0x06, 0xb4, 0x7b, 0xde, 0x9f, 0xe4, 0x9d, 0x81, 0x24, 0x4c, 0x55, 0xfd, 0xca,
0x47, 0x3f, 0x4c, 0x03, 0x2a, 0x16, 0xe9, 0x5b, 0x80, 0xba, 0x13, 0xe1, 0x11, 0xe2, 0xa7, 0xaf,
0x3a, 0x1b, 0xb4, 0x30, 0x32, 0x4b, 0x4e, 0xbb, 0x7c, 0xa9, 0x17, 0x64, 0x96, 0x6b, 0x86, 0x1a,
0xfe, 0xeb, 0xae, 0x69, 0x5d, 0x6f, 0xf5, 0x9f, 0x91, 0xd9, 0xb6, 0xfc, 0x4a, 0xdc, 0x83, 0x1c,
0x5d, 0xa3, 0xa5, 0x11, 0x99, 0x2a, 0x09, 0xa9, 0x3b, 0x5b, 0x1f, 0xdc, 0xd0, 0xeb, 0xc8, 0x08,
0xea, 0xae, 0x12, 0x0f, 0xb0, 0xf1, 0x76, 0x76, 0x1c, 0x29, 0x8e, 0x7e, 0x3a, 0xbd, 0x80, 0xe2,
0x49, 0x44, 0x88, 0x6e, 0x55, 0x67, 0xb5, 0xe0, 0x02, 0x33, 0x79, 0x85, 0x6b, 0x69, 0x9b, 0x3d,
0x62, 0xf2, 0xae, 0x74, 0xcf, 0xb2, 0xcc, 0xfc, 0x88, 0xf9, 0xc9, 0xf3, 0x27, 0x00, 0x00, 0xff,
0xff, 0xfd, 0x2c, 0xbb, 0xfb, 0xf3, 0x00, 0x00, 0x00,
}

17
vendor/github.com/moby/buildkit/util/stack/stack.proto generated vendored Normal file
View File

@@ -0,0 +1,17 @@
syntax = "proto3";
package stack;
message Stack {
repeated Frame frames = 1;
repeated string cmdline = 2;
int32 pid = 3;
string version = 4;
string revision = 5;
}
message Frame {
string Name = 1;
string File = 2;
int32 Line = 3;
}