command/format: improve "source" of error messages regarding missing arguments (#20907)

* vendor: update hcl2 dependency
* command/format: revert diagnostic format behavior if snippet or highlight range is empty

command/format/diagnostic.go

@@ -62,6 +62,14 @@ func Diagnostic(diag tfdiags.Diagnostic, sources map[string][]byte, color *color
 		// Make sure the snippet includes the highlight. This should be true
 		// for any reasonable diagnostic, but we'll make sure.
 		snippetRange = hcl.RangeOver(snippetRange, highlightRange)
+		if snippetRange.Empty() {
+			snippetRange.End.Byte++
+			snippetRange.End.Column++
+		}
+		if highlightRange.Empty() {
+			highlightRange.End.Byte++
+			highlightRange.End.Column++
+		}
 
 		var src []byte
 		if sources != nil {
@@ -77,13 +85,6 @@ func Diagnostic(diag tfdiags.Diagnostic, sources map[string][]byte, color *color
 			file, offset := parseRange(src, highlightRange)
 
 			headerRange := highlightRange
-			if snippetRange.Empty() {
-				// We assume that empty range signals diagnostic
-				// related to the whole body, so we lookup the definition
-				// instead of attempting to render empty range
-				snippetRange = hcled.ContextDefRange(file, offset-1)
-				headerRange = snippetRange
-			}
 
 			contextStr := hcled.ContextString(file, offset-1)
 			if contextStr != "" {
@@ -100,18 +101,14 @@ func Diagnostic(diag tfdiags.Diagnostic, sources map[string][]byte, color *color
 					continue
 				}
 				beforeRange, highlightedRange, afterRange := lineRange.PartitionAround(highlightRange)
-				if highlightedRange.Empty() {
-					fmt.Fprintf(&buf, "%4d: %s\n", lineRange.Start.Line, sc.Bytes())
-				} else {
-					before := beforeRange.SliceBytes(src)
-					highlighted := highlightedRange.SliceBytes(src)
-					after := afterRange.SliceBytes(src)
-					fmt.Fprintf(
-						&buf, color.Color("%4d: %s[underline]%s[reset]%s\n"),
-						lineRange.Start.Line,
-						before, highlighted, after,
-					)
-				}
+				before := beforeRange.SliceBytes(src)
+				highlighted := highlightedRange.SliceBytes(src)
+				after := afterRange.SliceBytes(src)
+				fmt.Fprintf(
+					&buf, color.Color("%4d: %s[underline]%s[reset]%s\n"),
+					lineRange.Start.Line,
+					before, highlighted, after,
+				)
 			}
 
 		}
@@ -180,12 +177,6 @@ func Diagnostic(diag tfdiags.Diagnostic, sources map[string][]byte, color *color
 	return buf.String()
 }
 
-// sourceCodeContextStr attempts to find a user-friendly description of
-// the location of the given range in the given source code.
-//
-// An empty string is returned if no suitable description is available, e.g.
-// because the source is invalid, or because the offset is not inside any sort
-// of identifiable container.
 func parseRange(src []byte, rng hcl.Range) (*hcl.File, int) {
 	filename := rng.Filename
 	offset := rng.Start.Byte

go.mod

@@ -60,7 +60,7 @@ require (
 	github.com/hashicorp/go-version v1.1.0
 	github.com/hashicorp/golang-lru v0.5.0 // indirect
 	github.com/hashicorp/hcl v0.0.0-20170504190234-a4b07c25de5f
-	github.com/hashicorp/hcl2 v0.0.0-20190327223817-3fb4ed0d9260
+	github.com/hashicorp/hcl2 v0.0.0-20190402200843-8b450a7d58f9
 	github.com/hashicorp/hil v0.0.0-20190212112733-ab17b08d6590
 	github.com/hashicorp/logutils v1.0.0
 	github.com/hashicorp/memberlist v0.1.0 // indirect

go.sum

@@ -202,6 +202,8 @@ github.com/hashicorp/hcl v0.0.0-20170504190234-a4b07c25de5f/go.mod h1:oZtUIOe8dh
 github.com/hashicorp/hcl2 v0.0.0-20181208003705-670926858200/go.mod h1:ShfpTh661oAaxo7VcNxg0zcZW6jvMa7Moy2oFx7e5dE=
 github.com/hashicorp/hcl2 v0.0.0-20190327223817-3fb4ed0d9260 h1:C3vhYEXk8ihs+Xvq093axRyYhfLERrZ6Uv5tfRw9yvw=
 github.com/hashicorp/hcl2 v0.0.0-20190327223817-3fb4ed0d9260/go.mod h1:HtEzazM5AZ9fviNEof8QZB4T1Vz9UhHrGhnMPzl//Ek=
+github.com/hashicorp/hcl2 v0.0.0-20190402200843-8b450a7d58f9 h1:zCITwiA0cog6aYr/a/McDHKtgsEpYxXvTIgugv5iu8o=
+github.com/hashicorp/hcl2 v0.0.0-20190402200843-8b450a7d58f9/go.mod h1:HtEzazM5AZ9fviNEof8QZB4T1Vz9UhHrGhnMPzl//Ek=
 github.com/hashicorp/hil v0.0.0-20190212112733-ab17b08d6590 h1:2yzhWGdgQUWZUCNK+AoO35V+HTsgEmcM4J9IkArh7PI=
 github.com/hashicorp/hil v0.0.0-20190212112733-ab17b08d6590/go.mod h1:n2TSygSNwsLJ76m8qFXTSc7beTb+auJxYdqrnoqwZWE=
 github.com/hashicorp/logutils v1.0.0 h1:dLEQVugN8vlakKOUE3ihGLTZJRB4j+M2cdTm/ORI65Y=

tfdiags/contextual_test.go

@@ -58,8 +58,8 @@ simple_attr = "val"
 	}
 	emptySrcRng := &SourceRange{
 		Filename: "test.tf",
-		Start:    SourcePos{Line: 33, Column: 1, Byte: 440},
-		End:      SourcePos{Line: 33, Column: 1, Byte: 440},
+		Start:    SourcePos{Line: 1, Column: 1, Byte: 0},
+		End:      SourcePos{Line: 1, Column: 1, Byte: 0},
 	}
 
 	testCases := []struct {

vendor/github.com/hashicorp/hcl2/hcl/hclsyntax/structure.go

@@ -279,7 +279,11 @@ func (b *Body) JustAttributes() (hcl.Attributes, hcl.Diagnostics) {
 }
 
 func (b *Body) MissingItemRange() hcl.Range {
-	return b.EndRange
+	return hcl.Range{
+		Filename: b.SrcRange.Filename,
+		Start:    b.SrcRange.Start,
+		End:      b.SrcRange.Start,
+	}
 }
 
 // Attributes is the collection of attribute definitions within a body.

vendor/modules.txt

@@ -307,7 +307,7 @@ github.com/hashicorp/hcl/hcl/scanner
 github.com/hashicorp/hcl/hcl/strconv
 github.com/hashicorp/hcl/json/scanner
 github.com/hashicorp/hcl/json/token
-# github.com/hashicorp/hcl2 v0.0.0-20190327223817-3fb4ed0d9260
+# github.com/hashicorp/hcl2 v0.0.0-20190402200843-8b450a7d58f9
 github.com/hashicorp/hcl2/hcl
 github.com/hashicorp/hcl2/hcl/hclsyntax
 github.com/hashicorp/hcl2/hcldec