hugo/deploy/deployConfig.go

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// Copyright 2019 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package deploy
import (
"fmt"
"regexp"
"github.com/gobwas/glob"
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"github.com/gohugoio/hugo/config"
hglob "github.com/gohugoio/hugo/hugofs/glob"
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"github.com/mitchellh/mapstructure"
)
const deploymentConfigKey = "deployment"
// deployConfig is the complete configuration for deployment.
type deployConfig struct {
Targets []*target
Matchers []*matcher
Order []string
ordering []*regexp.Regexp // compiled Order
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}
type target struct {
Name string
URL string
CloudFrontDistributionID string
// GoogleCloudCDNOrigin specifies the Google Cloud project and CDN origin to
// invalidate when deploying this target. It is specified as <project>/<origin>.
GoogleCloudCDNOrigin string
// Optional patterns of files to include/exclude for this target.
// Parsed using github.com/gobwas/glob.
Include string
Exclude string
// Parsed versions of Include/Exclude.
includeGlob glob.Glob
excludeGlob glob.Glob
}
func (tgt *target) parseIncludeExclude() error {
var err error
if tgt.Include != "" {
tgt.includeGlob, err = hglob.GetGlob(tgt.Include)
if err != nil {
return fmt.Errorf("invalid deployment.target.include %q: %v", tgt.Include, err)
}
}
if tgt.Exclude != "" {
tgt.excludeGlob, err = hglob.GetGlob(tgt.Exclude)
if err != nil {
return fmt.Errorf("invalid deployment.target.exclude %q: %v", tgt.Exclude, err)
}
}
return nil
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}
// matcher represents configuration to be applied to files whose paths match
// a specified pattern.
type matcher struct {
// Pattern is the string pattern to match against paths.
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// Matching is done against paths converted to use / as the path separator.
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Pattern string
// CacheControl specifies caching attributes to use when serving the blob.
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control
CacheControl string
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// ContentEncoding specifies the encoding used for the blob's content, if any.
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Encoding
ContentEncoding string
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// ContentType specifies the MIME type of the blob being written.
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Type
ContentType string
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// Gzip determines whether the file should be gzipped before upload.
// If so, the ContentEncoding field will automatically be set to "gzip".
Gzip bool
// Force indicates that matching files should be re-uploaded. Useful when
// other route-determined metadata (e.g., ContentType) has changed.
Force bool
// re is Pattern compiled.
re *regexp.Regexp
}
func (m *matcher) Matches(path string) bool {
return m.re.MatchString(path)
}
// decode creates a config from a given Hugo configuration.
func decodeConfig(cfg config.Provider) (deployConfig, error) {
var dcfg deployConfig
if !cfg.IsSet(deploymentConfigKey) {
return dcfg, nil
}
if err := mapstructure.WeakDecode(cfg.GetStringMap(deploymentConfigKey), &dcfg); err != nil {
return dcfg, err
}
for _, tgt := range dcfg.Targets {
if err := tgt.parseIncludeExclude(); err != nil {
return dcfg, err
}
}
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var err error
for _, m := range dcfg.Matchers {
m.re, err = regexp.Compile(m.Pattern)
if err != nil {
return dcfg, fmt.Errorf("invalid deployment.matchers.pattern: %v", err)
}
}
for _, o := range dcfg.Order {
re, err := regexp.Compile(o)
if err != nil {
return dcfg, fmt.Errorf("invalid deployment.orderings.pattern: %v", err)
}
dcfg.ordering = append(dcfg.ordering, re)
}
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return dcfg, nil
}