intelp2m: Add Go Managing Dependencies System support

Add go.mod containing the full name of the project according to the
docs [1]: review.coreboot.org/coreboot.git/util/intelp2m, and also,
based on this, rename the internal packages to point to the absolute
path. This will allow Go Managing Dependencies System to integrate
packages from intelp2m to third-party Go written on the Go language [1].
This also requires fixing the Golang compiler version in go.mod: use
go1.18 [2], the latest up-to-date version.

[1] https://web.archive.org/web/20220910100342/https://go.dev/doc/modules/managing-dependencies
[2] https://web.archive.org/web/20220910100206/https://tip.golang.org/doc/go1.18

[ TEST ]
1) Import the coreboot project into some go project:

$cd path/to/go-project
$go get review.coreboot.org/coreboot.git
go: downloading review.coreboot.org/coreboot.git v0.0.0-20220903004133
-39914a50ae16
go: added review.coreboot.org/coreboot.git v0.0.0-20220903004133
-39914a50ae16

Thus, 'go get' correctly downloaded the contents of the repository.

2) Import intelp2m:

$cd path/to/go-project
$go get review.coreboot.org/coreboot.git/util/intelp2m
review.coreboot.org/coreboot.git/util/intelp2m imports
	./config: "./config" is relative, but relative import paths are
not supported in module mode
review.coreboot.org/coreboot.git/util/intelp2m imports
	./parser: "./parser" is relative, but relative import paths are
not supported in module mode

Thus, the problem is in the package names, but after this patch, the
import should be without errors.

3) Import a repository with an incorrect url:

$cd path/to/go-project
$go get review.coreboot.org/coreboot/test
go: unrecognized import path "review.coreboot.org/coreboot/test":
reading https://review.coreboot.org/coreboot/test?go-get=1:
404 Not Found

This has not happened in previous cases.

Change-Id: I12efae31227129b8c884af10fb233f398c4094e7
Signed-off-by: Maxim Polyakov <max.senia.poliak@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64724
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>

util/intelp2m/Makefile

@@ -5,7 +5,7 @@ PROJECT_NAME = intelp2m
 
 default:
 	go version
-	GO111MODULE=off go build -v -o $(PROJECT_NAME)
+	go build -v -o $(PROJECT_NAME)
 
 clean:
 	rm -Rf $(PROJECT_NAME) $(OUTPUT_DIR)

util/intelp2m/fields/cb/cb.go

@@ -1,8 +1,8 @@
 package cb
 
 import (
-	"../../config"
+	"review.coreboot.org/coreboot.git/util/intelp2m/config"
-	"../../platforms/common"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
 )
 
 type FieldMacros struct {}

util/intelp2m/fields/fields.go

@@ -1,11 +1,11 @@
 package fields
 
 import (
-	"../config"
+	"review.coreboot.org/coreboot.git/util/intelp2m/config"
-	"../platforms/common"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
-	"./fsp"
+	"review.coreboot.org/coreboot.git/util/intelp2m/fields/fsp"
-	"./cb"
+	"review.coreboot.org/coreboot.git/util/intelp2m/fields/cb"
-	"./raw"
+	"review.coreboot.org/coreboot.git/util/intelp2m/fields/raw"
 )
 
 // InterfaceSet - set the interface for decoding configuration

util/intelp2m/fields/fsp/fsp.go

@@ -1,6 +1,6 @@
 package fsp
 
-import "../../platforms/common"
+import "review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
 
 type FieldMacros struct {}
 

util/intelp2m/fields/raw/raw.go

@@ -2,7 +2,7 @@ package raw
 
 import (
 	"fmt"
-	"../../platforms/common"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
 )
 
 type FieldMacros struct {}

util/intelp2m/go.mod

@@ -0,0 +1,3 @@
+module review.coreboot.org/coreboot.git/util/intelp2m
+
+go 1.18

util/intelp2m/main.go

@@ -4,8 +4,9 @@ import (
 	"flag"
 	"fmt"
 	"os"
-	"./parser"
+
-	"./config"
+	"review.coreboot.org/coreboot.git/util/intelp2m/config"
+	"review.coreboot.org/coreboot.git/util/intelp2m/parser"
 )
 
 // generateOutputFile - generates include file

util/intelp2m/parser/parser.go

@@ -5,13 +5,14 @@ import (
 	"fmt"
 	"strings"
 	"strconv"
-	"../platforms/common"
+
-	"../platforms/snr"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
-	"../platforms/lbg"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/snr"
-	"../platforms/apl"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/lbg"
-	"../platforms/cnl"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/apl"
-	"../platforms/adl"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/cnl"
-	"../config"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/adl"
+	"review.coreboot.org/coreboot.git/util/intelp2m/config"
 )
 
 // PlatformSpecific - platform-specific interface

util/intelp2m/platforms/adl/macro.go

@@ -3,11 +3,12 @@ package adl
 import (
 	"strings"
 	"fmt"
-	"../common"
+
-	"../../config"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
-	"../../fields"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/snr"
-	"../snr"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/cnl"
-	"../cnl"
+	"review.coreboot.org/coreboot.git/util/intelp2m/config"
+	"review.coreboot.org/coreboot.git/util/intelp2m/fields"
 )
 
 const (

util/intelp2m/platforms/adl/template.go

@@ -1,6 +1,6 @@
 package adl
 
-import "../common"
+import "review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
 
 // GroupNameExtract - This function extracts the group ID, if it exists in a row
 // line      : string from the configuration file

util/intelp2m/platforms/apl/macro.go

@@ -3,9 +3,10 @@ package apl
 import (
 	"fmt"
 	"strconv"
-	"../common"
+
-	"../../config"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
-	"../../fields"
+	"review.coreboot.org/coreboot.git/util/intelp2m/config"
+	"review.coreboot.org/coreboot.git/util/intelp2m/fields"
 )
 
 const (

util/intelp2m/platforms/apl/template.go

@@ -1,6 +1,6 @@
 package apl
 
-import "../common"
+import "review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
 
 // GroupNameExtract - This function extracts the group ID, if it exists in a row
 // line      : string from the configuration file

util/intelp2m/platforms/cnl/macro.go

@@ -3,10 +3,11 @@ package cnl
 import (
 	"strings"
 	"fmt"
-	"../common"
+
-	"../../config"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
-	"../../fields"
+	"review.coreboot.org/coreboot.git/util/intelp2m/config"
-	"../snr"
+	"review.coreboot.org/coreboot.git/util/intelp2m/fields"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/snr"
 )
 
 const (

util/intelp2m/platforms/cnl/template.go

@@ -1,6 +1,6 @@
 package cnl
 
-import "../common"
+import "review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
 
 type InheritanceTemplate interface {
 	KeywordCheck(line string) bool

util/intelp2m/platforms/common/macro.go

@@ -3,7 +3,8 @@ package common
 import (
 	"strconv"
 	"sync"
-	"../../config"
+
+	"review.coreboot.org/coreboot.git/util/intelp2m/config"
 )
 
 type Fields interface {

util/intelp2m/platforms/lbg/macro.go

@@ -2,10 +2,11 @@ package lbg
 
 import (
 	"fmt"
-	"../../config"
+
-	"../../fields"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
-	"../common"
+	"review.coreboot.org/coreboot.git/util/intelp2m/config"
-	"../snr"
+	"review.coreboot.org/coreboot.git/util/intelp2m/fields"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/snr"
 )
 
 const (

util/intelp2m/platforms/snr/macro.go

@@ -3,9 +3,10 @@ package snr
 import (
 	"strings"
 	"fmt"
-	"../common"
+
-	"../../config"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
-	"../../fields"
+	"review.coreboot.org/coreboot.git/util/intelp2m/config"
+	"review.coreboot.org/coreboot.git/util/intelp2m/fields"
 )
 
 const (

util/intelp2m/platforms/snr/template.go

@@ -1,6 +1,6 @@
 package snr
 
-import "../common"
+import "review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
 
 // GroupNameExtract - This function extracts the group ID, if it exists in a row
 // line      : string from the configuration file