79f5f312b8
This change recognizes .yml in addition to the official .yaml extension, since .yml is actually very commonly used. In addition, while in here, I've centralized more of the extensions logic so that it's more "data-driven" and easier to manage down the road (one place to change rather than two).
58 lines
1.6 KiB
Go
58 lines
1.6 KiB
Go
// Copyright 2016 Marapongo, Inc. All rights reserved.
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package compiler
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import (
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"github.com/golang/glog"
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"github.com/marapongo/mu/pkg/diag"
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"github.com/marapongo/mu/pkg/errors"
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"github.com/marapongo/mu/pkg/schema"
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)
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type Parser interface {
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// Diag fetches the diagnostics sink used by this parser.
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Diag() diag.Sink
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// Parse detects and parses input from the given path. If an error occurs, the return value will be nil. It is
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// expected that errors are conveyed using the diag.Sink interface.
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Parse(doc *diag.Document) *schema.Stack
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}
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func NewParser(c Compiler) Parser {
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return &parser{c}
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}
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type parser struct {
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c Compiler
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}
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func (p *parser) Diag() diag.Sink {
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return p.c.Diag()
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}
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func (p *parser) Parse(doc *diag.Document) *schema.Stack {
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glog.Infof("Parsing Mufile: %v (len(body)=%v)", doc.File, len(doc.Body))
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if glog.V(2) {
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defer func() {
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glog.V(2).Infof("Parsing Mufile '%v' completed w/ %v warnings and %v errors",
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doc.File, p.Diag().Warnings(), p.Diag().Errors())
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}()
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}
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// We support many file formats. Detect the file extension and deserialize the contents.
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// TODO: we need to expand templates as part of the parsing process
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var stack schema.Stack
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marshaler, has := schema.MufileExts[doc.Ext()]
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if !has {
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p.Diag().Errorf(errors.IllegalMufileExt.WithDocument(doc), doc.Ext())
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return nil
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}
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if err := marshaler.Unmarshal(doc.Body, &stack); err != nil {
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p.Diag().Errorf(errors.IllegalMufileSyntax.WithDocument(doc), err)
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// TODO: it would be great if we issued an error per issue found in the file with line/col numbers.
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return nil
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}
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return &stack
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}
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