1. docker
  2. Commit 0a2c481c7f24fcd295b1e1f6504732971b289919
Browse code

ignore invalid Dockerfile instructions and do not consider "docker-version" a Dockerfile instruction

Signed-off-by: Tibor Vass <teabee89@gmail.com>

Tibor Vass authored on 2014/10/07 12:24:43
Showing 4 changed files
builder/evaluator.go
History View file @ 0a2c481
... ... 
@@ -45,21 +45,20 @@ var evaluateTable map[string]func(*Builder, []string, map[string]bool) error
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 func init() {
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 	evaluateTable = map[string]func(*Builder, []string, map[string]bool) error{
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-		"env":            env,
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-		"maintainer":     maintainer,
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-		"add":            add,
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-		"copy":           dispatchCopy, // copy() is a go builtin
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-		"from":           from,
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-		"onbuild":        onbuild,
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-		"workdir":        workdir,
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-		"docker-version": nullDispatch, // we don't care about docker-version
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-		"run":            run,
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-		"cmd":            cmd,
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-		"entrypoint":     entrypoint,
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-		"expose":         expose,
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-		"volume":         volume,
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-		"user":           user,
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-		"insert":         insert,
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+		"env":        env,
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+		"maintainer": maintainer,
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+		"add":        add,
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+		"copy":       dispatchCopy, // copy() is a go builtin
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+		"from":       from,
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+		"onbuild":    onbuild,
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+		"workdir":    workdir,
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+		"run":        run,
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+		"cmd":        cmd,
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+		"entrypoint": entrypoint,
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+		"expose":     expose,
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+		"volume":     volume,
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+		"user":       user,
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+		"insert":     insert,
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 	}
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 }
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builder/parser/parser.go
History View file @ 0a2c481
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@@ -43,21 +43,20 @@ func init() {
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 	// functions. Errors are propogated up by Parse() and the resulting AST can
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 	// be incorporated directly into the existing AST as a next.
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 	dispatch = map[string]func(string) (*Node, map[string]bool, error){
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-		"user":           parseString,
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-		"onbuild":        parseSubCommand,
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-		"workdir":        parseString,
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-		"env":            parseEnv,
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-		"maintainer":     parseString,
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-		"docker-version": parseString,
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-		"from":           parseString,
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-		"add":            parseStringsWhitespaceDelimited,
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-		"copy":           parseStringsWhitespaceDelimited,
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-		"run":            parseMaybeJSON,
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-		"cmd":            parseMaybeJSON,
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-		"entrypoint":     parseMaybeJSON,
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-		"expose":         parseStringsWhitespaceDelimited,
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-		"volume":         parseMaybeJSONToList,
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-		"insert":         parseIgnore,
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+		"user":       parseString,
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+		"onbuild":    parseSubCommand,
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+		"workdir":    parseString,
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+		"env":        parseEnv,
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+		"maintainer": parseString,
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+		"from":       parseString,
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+		"add":        parseStringsWhitespaceDelimited,
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+		"copy":       parseStringsWhitespaceDelimited,
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+		"run":        parseMaybeJSON,
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+		"cmd":        parseMaybeJSON,
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+		"entrypoint": parseMaybeJSON,
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+		"expose":     parseStringsWhitespaceDelimited,
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+		"volume":     parseMaybeJSONToList,
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+		"insert":     parseIgnore,
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 	}
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 }
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builder/parser/testfiles/docker/result
History View file @ 0a2c481
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@@ -1,4 +1,4 @@
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-(docker-version "0.6.1")
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+(docker-version)
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 (from "ubuntu:14.04")
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 (maintainer "Tianon Gravi <admwiggin@gmail.com> (@tianon)")
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 (run "apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -yq 	apt-utils 	aufs-tools 	automake 	btrfs-tools 	build-essential 	curl 	dpkg-sig 	git 	iptables 	libapparmor-dev 	libcap-dev 	libsqlite3-dev 	lxc=1.0* 	mercurial 	pandoc 	parallel 	reprepro 	ruby1.9.1 	ruby1.9.1-dev 	s3cmd=1.1.0* 	--no-install-recommends")
builder/parser/utils.go
History View file @ 0a2c481
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@@ -1,9 +1,6 @@
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 package parser
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-import (
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-	"fmt"
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-	"strings"
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-)
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+import "strings"
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 // QuoteString walks characters (after trimming), escapes any quotes and
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 // escapes, then wraps the whole thing in quotes. Very useful for generating
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@@ -52,11 +49,14 @@ func (node *Node) Dump() string {
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 // performs the dispatch based on the two primal strings, cmd and args. Please
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 // look at the dispatch table in parser.go to see how these dispatchers work.
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 func fullDispatch(cmd, args string) (*Node, map[string]bool, error) {
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-	if _, ok := dispatch[cmd]; !ok {
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-		return nil, nil, fmt.Errorf("'%s' is not a valid dockerfile command", cmd)
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+	fn := dispatch[cmd]
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+
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+	// Ignore invalid Dockerfile instructions
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+	if fn == nil {
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+		fn = parseIgnore
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 	}
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-	sexp, attrs, err := dispatch[cmd](args)
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+	sexp, attrs, err := fn(args)
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 	if err != nil {
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 		return nil, nil, err
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 	}