1 files changed, 100 insertions, 0 deletions

diff --git a/vendor/github.com/hashicorp/terraform/configs/parser.go b/vendor/github.com/hashicorp/terraform/configs/parser.go
new file mode 100644
index 0000000..8176fa1
--- /dev/null
+++ b/vendor/github.com/hashicorp/terraform/configs/parser.go
@@ -0,0 +1,100 @@
+package configs
+
+import (
+        "fmt"
+        "strings"
+
+        "github.com/hashicorp/hcl2/hcl"
+        "github.com/hashicorp/hcl2/hclparse"
+        "github.com/spf13/afero"
+)
+
+// Parser is the main interface to read configuration files and other related
+// files from disk.
+//
+// It retains a cache of all files that are loaded so that they can be used
+// to create source code snippets in diagnostics, etc.
+type Parser struct {
+        fs afero.Afero
+        p  *hclparse.Parser
+}
+
+// NewParser creates and returns a new Parser that reads files from the given
+// filesystem. If a nil filesystem is passed then the system's "real" filesystem
+// will be used, via afero.OsFs.
+func NewParser(fs afero.Fs) *Parser {
+        if fs == nil {
+                fs = afero.OsFs{}
+        }
+
+        return &Parser{
+                fs: afero.Afero{Fs: fs},
+                p:  hclparse.NewParser(),
+        }
+}
+
+// LoadHCLFile is a low-level method that reads the file at the given path,
+// parses it, and returns the hcl.Body representing its root. In many cases
+// it is better to use one of the other Load*File methods on this type,
+// which additionally decode the root body in some way and return a higher-level
+// construct.
+//
+// If the file cannot be read at all -- e.g. because it does not exist -- then
+// this method will return a nil body and error diagnostics. In this case
+// callers may wish to ignore the provided error diagnostics and produce
+// a more context-sensitive error instead.
+//
+// The file will be parsed using the HCL native syntax unless the filename
+// ends with ".json", in which case the HCL JSON syntax will be used.
+func (p *Parser) LoadHCLFile(path string) (hcl.Body, hcl.Diagnostics) {
+        src, err := p.fs.ReadFile(path)
+
+        if err != nil {
+                return nil, hcl.Diagnostics{
+                        {
+                                Severity: hcl.DiagError,
+                                Summary:  "Failed to read file",
+                                Detail:   fmt.Sprintf("The file %q could not be read.", path),
+                        },
+                }
+        }
+
+        var file *hcl.File
+        var diags hcl.Diagnostics
+        switch {
+        case strings.HasSuffix(path, ".json"):
+                file, diags = p.p.ParseJSON(src, path)
+        default:
+                file, diags = p.p.ParseHCL(src, path)
+        }
+
+        // If the returned file or body is nil, then we'll return a non-nil empty
+        // body so we'll meet our contract that nil means an error reading the file.
+        if file == nil || file.Body == nil {
+                return hcl.EmptyBody(), diags
+        }
+
+        return file.Body, diags
+}
+
+// Sources returns a map of the cached source buffers for all files that
+// have been loaded through this parser, with source filenames (as requested
+// when each file was opened) as the keys.
+func (p *Parser) Sources() map[string][]byte {
+        return p.p.Sources()
+}
+
+// ForceFileSource artificially adds source code to the cache of file sources,
+// as if it had been loaded from the given filename.
+//
+// This should be used only in special situations where configuration is loaded
+// some other way. Most callers should load configuration via methods of
+// Parser, which will update the sources cache automatically.
+func (p *Parser) ForceFileSource(filename string, src []byte) {
+        // We'll make a synthetic hcl.File here just so we can reuse the
+        // existing cache.
+        p.p.AddFile(filename, &hcl.File{
+                Body:  hcl.EmptyBody(),
+                Bytes: src,
+        })
+}