feat(font): cache zip files

src/font/cli.go

@@ -72,14 +72,13 @@ const (
 )
 
 type main struct {
-	err       error
-	list      *list.Model
-	font      string
-	zipFolder string
-	families  []string
-	spinner   spinner.Model
-	state     state
-	system    bool
+	err  error
+	list *list.Model
+	Asset
+	families []string
+	spinner  spinner.Model
+	state    state
+	system   bool
 }
 
 func (m *main) buildFontList(nerdFonts []*Asset) {
@@ -122,7 +121,7 @@ func downloadFontZip(location string) {
 }
 
 func installLocalFontZIP(m *main) {
-	data, err := os.ReadFile(m.font)
+	data, err := os.ReadFile(m.URL)
 	if err != nil {
 		program.Send(errMsg(err))
 		return
@@ -143,28 +142,48 @@ func installFontZIP(zipFile []byte, m *main) {
 
 func (m *main) Init() tea.Cmd {
 	isLocalZipFile := func() bool {
-		return !strings.HasPrefix(m.font, "https") && strings.HasSuffix(m.font, ".zip")
+		return !strings.HasPrefix(m.URL, "https") && strings.HasSuffix(m.URL, ".zip")
 	}
 
-	if len(m.font) != 0 && !isLocalZipFile() {
-		m.state = downloadFont
+	resolveFontZipURL := func() error {
+		if strings.HasPrefix(m.URL, "https") {
+			return nil
+		}
 
-		if !strings.HasPrefix(m.font, "https") {
-			if m.font == CascadiaCodeMS {
-				cascadia, err := CascadiaCode()
-				if err != nil {
-					m.err = err
-					return tea.Quit
-				}
+		fonts, err := Fonts()
+		if err != nil {
+			return err
+		}
 
-				m.font = cascadia.URL
-			} else {
-				m.font = fmt.Sprintf("https://github.com/ryanoasis/nerd-fonts/releases/latest/download/%s.zip", m.font)
+		var fontAsset *Asset
+		for _, font := range fonts {
+			if m.URL != font.Name {
+				continue
 			}
+
+			fontAsset = font
+			break
+		}
+
+		if fontAsset == nil {
+			return fmt.Errorf("no matching font found")
+		}
+
+		m.Asset = *fontAsset
+
+		return nil
+	}
+
+	if len(m.URL) != 0 && !isLocalZipFile() {
+		m.state = downloadFont
+
+		if err := resolveFontZipURL(); err != nil {
+			m.err = err
+			return tea.Quit
 		}
 
 		defer func() {
-			go downloadFontZip(m.font)
+			go downloadFontZip(m.URL)
 		}()
 
 		m.spinner.Spinner = spinner.Globe
@@ -214,20 +233,25 @@ func (m *main) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			return m, tea.Quit
 
 		case "enter":
-			if len(m.font) != 0 || m.list == nil || m.list.SelectedItem() == nil {
+			if len(m.URL) != 0 || m.list == nil || m.list.SelectedItem() == nil {
 				return m, nil
 			}
+
 			var font *Asset
 			var ok bool
+
 			if font, ok = m.list.SelectedItem().(*Asset); !ok {
 				m.err = fmt.Errorf("no font selected")
 				return m, tea.Quit
 			}
+
 			m.state = downloadFont
-			m.font = font.Name
+			m.Asset = *font
+
 			defer func() {
 				go downloadFontZip(font.URL)
 			}()
+
 			m.spinner.Spinner = spinner.Globe
 			return m, m.spinner.Tick
 
@@ -295,11 +319,11 @@ func (m *main) View() string {
 	case selectFont:
 		return fmt.Sprintf("\n%s%s", m.list.View(), terminal.StopProgress())
 	case downloadFont:
-		return textStyle.Render(fmt.Sprintf("%s Downloading %s%s", m.spinner.View(), m.font, terminal.StartProgress()))
+		return textStyle.Render(fmt.Sprintf("%s Downloading %s%s", m.spinner.View(), m.Name, terminal.StartProgress()))
 	case unzipFont:
-		return textStyle.Render(fmt.Sprintf("%s Extracting %s", m.spinner.View(), m.font))
+		return textStyle.Render(fmt.Sprintf("%s Extracting %s", m.spinner.View(), m.Name))
 	case installFont:
-		return textStyle.Render(fmt.Sprintf("%s Installing %s", m.spinner.View(), m.font))
+		return textStyle.Render(fmt.Sprintf("%s Installing %s", m.spinner.View(), m.Name))
 	case quit:
 		return textStyle.Render(fmt.Sprintf("No need to install a new font? That's cool.%s", terminal.StopProgress()))
 	case done:
@@ -309,7 +333,7 @@ func (m *main) View() string {
 
 		var builder strings.Builder
 
-		builder.WriteString(fmt.Sprintf("Successfully installed %s 🚀\n\n%s", m.font, terminal.StopProgress()))
+		builder.WriteString(fmt.Sprintf("Successfully installed %s 🚀\n\n%s", m.Name, terminal.StopProgress()))
 		builder.WriteString("The following font families are now available for configuration:\n\n")
 
 		for i, family := range m.families {
@@ -328,9 +352,12 @@ func (m *main) View() string {
 
 func Run(font string, ch cache_.Cache, root bool, zipFolder string) {
 	main := &main{
-		font:      font,
-		system:    root,
-		zipFolder: zipFolder,
+		system: root,
+		Asset: Asset{
+			Name:   font,
+			URL:    font,
+			Folder: zipFolder,
+		},
 	}
 
 	cache = ch

src/font/download.go

@@ -10,25 +10,55 @@ import (
 	"io"
 	httplib "net/http"
 	"net/url"
+	"os"
+	"path"
+	"path/filepath"
 
+	cache_ "github.com/jandedobbeleer/oh-my-posh/src/cache"
 	"github.com/jandedobbeleer/oh-my-posh/src/runtime/http"
 )
 
-func Download(fontPath string) ([]byte, error) {
-	u, err := url.Parse(fontPath)
+func Download(fontURL string) ([]byte, error) {
+	if zipPath, OK := cache.Get(fontURL); OK {
+		if b, err := os.ReadFile(zipPath); err == nil {
+			return b, nil
+		}
+	}
+
+	// validate if we have a local file
+	u, err := url.Parse(fontURL)
 	if err != nil || u.Scheme != "https" {
 		return nil, errors.New("font path must be a valid URL")
 	}
 
 	var b []byte
-	if b, err = getRemoteFile(fontPath); err != nil {
+	if b, err = getRemoteFile(fontURL); err != nil {
 		return nil, err
 	}
 
 	if !isZipFile(b) {
-		return nil, fmt.Errorf("%s is not a valid zip file", fontPath)
+		return nil, fmt.Errorf("%s is not a valid zip file", fontURL)
+	}
+
+	fileName := path.Base(fontURL)
+
+	zipPath := filepath.Join(os.TempDir(), fileName)
+	tempFile, err := os.Create(zipPath)
+	defer func() {
+		_ = tempFile.Close()
+	}()
+
+	if err != nil {
+		return b, nil
 	}
 
+	_, err = tempFile.Write(b)
+	if err != nil {
+		return b, nil
+	}
+
+	cache.Set(fontURL, zipPath, cache_.ONEDAY)
+
 	return b, nil
 }
 
@@ -42,10 +72,12 @@ func getRemoteFile(location string) (data []byte, err error) {
 	if err != nil {
 		return nil, err
 	}
+
 	resp, err := http.HTTPClient.Do(req)
 	if err != nil {
 		return
 	}
+
 	defer resp.Body.Close()
 
 	if resp.StatusCode != httplib.StatusOK {

src/font/fonts.go

@@ -23,9 +23,10 @@ type release struct {
 }
 
 type Asset struct {
-	Name  string `json:"name"`
-	URL   string `json:"browser_download_url"`
-	State string `json:"state"`
+	Name   string `json:"name"`
+	URL    string `json:"browser_download_url"`
+	State  string `json:"state"`
+	Folder string `json:"folder"`
 }
 
 func (a Asset) FilterValue() string { return a.Name }
@@ -42,7 +43,7 @@ func Fonts() ([]*Asset, error) {
 
 	cascadiaCode, err := CascadiaCode()
 	if err == nil {
-		assets = append(assets, cascadiaCode)
+		assets = append(assets, cascadiaCode...)
 	}
 
 	sort.Slice(assets, func(i, j int) bool { return assets[i].Name < assets[j].Name })
@@ -84,16 +85,39 @@ func setCachedFontData(assets []*Asset) {
 	cache.Set(cache_.FONTLISTCACHE, string(data), cache_.ONEDAY)
 }
 
-func CascadiaCode() (*Asset, error) {
+func CascadiaCode() ([]*Asset, error) {
 	assets, err := fetchFontAssets("microsoft/cascadia-code")
 	if err != nil || len(assets) != 1 {
 		return nil, errors.New("no assets found")
 	}
 
-	// patch the name
-	assets[0].Name = CascadiaCodeMS
-
-	return assets[0], nil
+	return []*Asset{
+		{
+			Name:   fmt.Sprintf("%s - TTF", CascadiaCodeMS),
+			URL:    assets[0].URL,
+			Folder: "ttf/",
+		},
+		{
+			Name:   fmt.Sprintf("%s - TTF Static", CascadiaCodeMS),
+			URL:    assets[0].URL,
+			Folder: "ttf/static/",
+		},
+		{
+			Name:   fmt.Sprintf("%s - OTF Static", CascadiaCodeMS),
+			URL:    assets[0].URL,
+			Folder: "otf/static/",
+		},
+		{
+			Name:   fmt.Sprintf("%s - WOFF2", CascadiaCodeMS),
+			URL:    assets[0].URL,
+			Folder: "woff2/static/",
+		},
+		{
+			Name:   fmt.Sprintf("%s - WOFF2 Static", CascadiaCodeMS),
+			URL:    assets[0].URL,
+			Folder: "woff2/static/",
+		},
+	}, nil
 }
 
 func fetchFontAssets(repo string) ([]*Asset, error) {

src/font/install.go

@@ -45,7 +45,7 @@ func InstallZIP(data []byte, m *main) ([]string, error) {
 		}
 
 		fontFileName := path.Base(file.Name)
-		fontRelativeFileName := strings.TrimPrefix(file.Name, m.zipFolder)
+		fontRelativeFileName := strings.TrimPrefix(file.Name, m.Folder)
 
 		// do not install fonts that are not in the specified installation folder
 		if fontFileName != fontRelativeFileName {

src/image/image.go

@@ -36,7 +36,7 @@ import (
 	"unicode/utf8"
 
 	"github.com/jandedobbeleer/oh-my-posh/src/cache"
-	fontCLI "github.com/jandedobbeleer/oh-my-posh/src/font"
+	font_ "github.com/jandedobbeleer/oh-my-posh/src/font"
 	"github.com/jandedobbeleer/oh-my-posh/src/regex"
 	"github.com/jandedobbeleer/oh-my-posh/src/runtime"
 	"github.com/jandedobbeleer/oh-my-posh/src/terminal"
@@ -229,7 +229,7 @@ func (ir *Renderer) loadFonts() error {
 		url := "https://github.com/ryanoasis/nerd-fonts/releases/download/v3.2.1/Hack.zip"
 		var err error
 
-		data, err = fontCLI.Download(url)
+		data, err = font_.Download(url)
 		if err != nil {
 			return err
 		}

website/docs/installation/fonts.mdx

@@ -47,12 +47,6 @@ This will present a list of Nerd Font libraries, from which you can  select `Mes
 oh-my-posh font install meslo
 ```
 
-If you have a font that has specific flavors of a font inside sub folders, you can specify the sub folder name:
-
-```bash
-oh-my-posh font install --zip-folder ttf/static "CascadiaCode (MS)"
-```
-
 </TabItem>
 <TabItem value="homebrew">