152 lines
4.2 KiB
Go
152 lines
4.2 KiB
Go
package sync
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import (
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"fmt"
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"math/rand"
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"path"
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"regexp"
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"strings"
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"srs.epita.fr/fic-server/libfic"
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"github.com/julienschmidt/httprouter"
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"gopkg.in/russross/blackfriday.v2"
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)
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// getThemes returns all theme directories in the base directory.
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func getThemes(i Importer) ([]string, error) {
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var themes []string
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if dirs, err := i.listDir("/"); err != nil {
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return nil, err
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} else {
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for _, dir := range dirs {
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if _, err := i.listDir(dir); err == nil {
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themes = append(themes, dir)
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}
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}
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}
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return themes, nil
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}
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// getAuthors parses the AUTHORS file.
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func getAuthors(i Importer, tname string) ([]string, error) {
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if authors, err := getFileContent(i, path.Join(tname, "AUTHORS.txt")); err != nil {
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return nil, err
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} else {
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var ret []string
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re := regexp.MustCompile("^([^<]+)(?: +<(.*)>)?$")
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for _, a := range strings.Split(strings.TrimSpace(authors), "\n") {
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grp := re.FindStringSubmatch(a)
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if len(grp) < 2 || grp[2] == "" {
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ret = append(ret, a)
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} else {
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ret = append(ret, fmt.Sprintf("<a href=\"%s\">%s</a>", grp[2], grp[1]))
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}
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}
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return ret, nil
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}
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}
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// SyncThemes imports new or updates existing themes.
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func SyncThemes(i Importer) []string {
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var errs []string
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if themes, err := getThemes(i); err != nil {
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errs = append(errs, err.Error())
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} else {
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rand.Shuffle(len(themes), func(i, j int) {
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themes[i], themes[j] = themes[j], themes[i]
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})
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for _, tdir := range themes {
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var authors []string
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var intro string
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var headline string
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var image string
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var theme fic.Theme
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var tname string
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// Extract theme's label
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if f := strings.Index(tdir, "-"); f >= 0 {
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tname = tdir[f+1:]
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} else {
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tname = tdir
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}
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if authors, err = getAuthors(i, tdir); err != nil {
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errs = append(errs, fmt.Sprintf("%q: unable to get AUTHORS: %s", tname, err))
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continue
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} else if intro, err = getFileContent(i, path.Join(tdir, "overview.txt")); err != nil {
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errs = append(errs, fmt.Sprintf("%q: unable to get theme's overview: %s", tname, err))
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} else {
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// Split headline from intro
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ovrvw := strings.Split(intro, "\n")
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headline = ovrvw[0]
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if len(ovrvw) > 1 {
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intro = strings.Join(ovrvw[1:], "\n")
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}
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if theme, err = fic.GetThemeByName(tname); err != nil {
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if _, err := fic.CreateTheme(tname, fic.ToURLid(tname), tdir, strings.Join(authors, ", "), intro, headline, image); err != nil {
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errs = append(errs, fmt.Sprintf("%q: an error occurs during add: %s", tdir, err))
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continue
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}
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}
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}
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// Format authors
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authors_str := strings.Join(authors, ", ")
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// Format overview (markdown)
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intro, err = ProcessMarkdown(i, intro, tdir)
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if err != nil {
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errs = append(errs, fmt.Sprintf("%q: overview.txt: an error occurs during markdown formating: %s", tdir, err))
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}
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headline = string(blackfriday.Run([]byte(headline)))
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if i.exists(path.Join(tdir, "heading.jpg")) {
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image = path.Join(tdir, "heading.jpg")
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} else if i.exists(path.Join(tdir, "heading.png")) {
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image = path.Join(tdir, "heading.png")
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}
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if len(image) > 0 {
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if _, err := i.importFile(image,
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func(filePath string, origin string) (interface{}, error) {
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image = strings.TrimPrefix(filePath, fic.FilesDir)
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return nil, nil
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}); err != nil {
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errs = append(errs, fmt.Sprintf("%q: unable to import heading image: %s", tdir, err))
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continue
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}
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}
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if theme.Name != tname || theme.Authors != authors_str || theme.Headline != headline || theme.Intro != intro || theme.Image != image {
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theme.Name = tname
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theme.Authors = authors_str
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theme.Intro = intro
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theme.Headline = headline
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theme.Image = image
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theme.Path = tdir
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if _, err := theme.Update(); err != nil {
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errs = append(errs, fmt.Sprintf("%q: an error occurs during update: %s", tdir, err))
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continue
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}
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}
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}
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}
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return errs
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}
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// ApiListRemoteThemes is an accessor letting foreign packages to access remote themes list.
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func ApiListRemoteThemes(_ httprouter.Params, _ []byte) (interface{}, error) {
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return getThemes(GlobalImporter)
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}
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// ApiListRemoteTheme is an accessor letting foreign packages to access remote main theme attributes.
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func ApiGetRemoteTheme(ps httprouter.Params, _ []byte) (interface{}, error) {
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return getAuthors(GlobalImporter, ps.ByName("thid"))
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}
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