about summary refs log tree commit diff stats
path: root/cmd/build/build.go
blob: 5daa9407a8aaee507904358c1022f8314bab19a0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
package main

import (
	"fmt"
	"io"
	"log"
	"log/slog"
	"net/url"
	"os"
	"path"
	"slices"

	"website/internal/config"

	cp "github.com/otiai10/copy"
	"github.com/pkg/errors"
)

func mkdirp(dirs ...string) error {
	return os.MkdirAll(path.Join(dirs...), 0755)
}

func outputToFile(output io.Reader, filename ...string) error {
	file, err := os.OpenFile(path.Join(filename...), os.O_WRONLY|os.O_CREATE, 0644)
	if err != nil {
		return errors.WithMessage(err, "could not open output file")
	}
	defer file.Close()

	if _, err := file.ReadFrom(output); err != nil {
		return errors.WithMessage(err, "could not write output file")
	}
	return nil
}

func build(outDir string, config config.Config) error {
	privateDir := path.Join(outDir, "private")
	if err := mkdirp(privateDir); err != nil {
		return errors.WithMessage(err, "could not create private directory")
	}
	publicDir := path.Join(outDir, "public")
	if err := mkdirp(publicDir); err != nil {
		return errors.WithMessage(err, "could not create public directory")
	}

	err := cp.Copy("static", publicDir, cp.Options{
		PreserveTimes:     true,
		PermissionControl: cp.AddPermission(0755),
	})
	if err != nil {
		log.Panic(errors.Errorf("could not copy static files: %v", err))
	}

	if err := mkdirp(publicDir, "post"); err != nil {
		return errors.WithMessage(err, "could not create post output directory")
	}
	slog.Debug("reading posts")
	posts, tags, err := readPosts("content", "post", publicDir)
	if err != nil {
		return err
	}

	for _, post := range posts {
		if err := mkdirp(publicDir, "post", post.Basename); err != nil {
			return errors.WithMessage(err, "could not create directory for post")
		}
		slog.Debug("rendering post", "post", post.Basename)
		output, err := renderPost(post, config)
		if err != nil {
			return errors.WithMessagef(err, "could not render post %s", post.Input)
		}
		if err := outputToFile(output, post.Output); err != nil {
			return err
		}
	}

	if err := mkdirp(publicDir, "tags"); err != nil {
		return errors.WithMessage(err, "could not create directory for tags")
	}
	slog.Debug("rendering tags list")
	output, err := renderTags(tags, config, "/tags")
	if err != nil {
		return errors.WithMessage(err, "could not render tags")
	}
	if err := outputToFile(output, publicDir, "tags", "index.html"); err != nil {
		return err
	}

	for _, tag := range tags.ToSlice() {
		matchingPosts := []Post{}
		for _, post := range posts {
			if slices.Contains(post.Taxonomies.Tags, tag) {
				matchingPosts = append(matchingPosts, post)
			}
		}
		if err := mkdirp(publicDir, "tags", tag); err != nil {
			return errors.WithMessage(err, "could not create directory")
		}
		slog.Debug("rendering tags page", "tag", tag)
		output, err := renderListPage(tag, config, matchingPosts, "/tags/"+tag)
		if err != nil {
			return errors.WithMessage(err, "could not render tag page")
		}
		if err := outputToFile(output, publicDir, "tags", tag, "index.html"); err != nil {
			return err
		}

		slog.Debug("rendering tags feed", "tag", tag)
		output, err = renderFeed(fmt.Sprintf("%s - %s", config.Title, tag), config, matchingPosts, tag)
		if err != nil {
			return errors.WithMessage(err, "could not render tag feed page")
		}
		if err := outputToFile(output, publicDir, "tags", tag, "atom.xml"); err != nil {
			return err
		}
	}

	slog.Debug("rendering list page")
	listPage, err := renderListPage("", config, posts, "/post")
	if err != nil {
		return errors.WithMessage(err, "could not render list page")
	}
	if err := outputToFile(listPage, publicDir, "post", "index.html"); err != nil {
		return err
	}

	slog.Debug("rendering feed")
	feed, err := renderFeed(config.Title, config, posts, "feed")
	if err != nil {
		return errors.WithMessage(err, "could not render feed")
	}
	if err := outputToFile(feed, publicDir, "atom.xml"); err != nil {
		return err
	}

	slog.Debug("rendering feed styles")
	feedStyles, err := renderFeedStyles()
	if err != nil {
		return errors.WithMessage(err, "could not render feed styles")
	}
	if err := outputToFile(feedStyles, publicDir, "feed-styles.xsl"); err != nil {
		return err
	}

	slog.Debug("rendering homepage")
	homePage, err := renderHomepage(config, posts, "/")
	if err != nil {
		return errors.WithMessage(err, "could not render homepage")
	}
	if err := outputToFile(homePage, publicDir, "index.html"); err != nil {
		return err
	}

	slog.Debug("rendering 404 page")
	notFound, err := render404(config, "/404.html")
	if err != nil {
		return errors.WithMessage(err, "could not render 404 page")
	}
	if err := outputToFile(notFound, privateDir, "404.html"); err != nil {
		return err
	}

	return nil
}

type IOConfig struct {
	Source      string `conf:"default:.,short:s"`
	Destination string `conf:"default:website,short:d"`
	BaseURL     config.URL
}

func buildSite(ioConfig IOConfig) error {
	config, err := config.GetConfig()
	if err != nil {
		log.Panic(errors.Errorf("could not get config: %v", err))
	}

	if ioConfig.BaseURL.URL != nil {
		config.BaseURL.URL, err = url.Parse(ioConfig.BaseURL.String())
		if err != nil {
			log.Panic(errors.Errorf("highly unlikely: %v", err))
		}
	}

	err = os.RemoveAll(ioConfig.Destination)
	if err != nil {
		log.Panic(errors.Errorf("could not remove public directory: %v", err))
	}

	if err := build(ioConfig.Destination, *config); err != nil {
		return err
	}

	slog.Debug("done")
	return nil
}