mirror of
https://git.mills.io/prologic/zs.git
synced 2024-11-17 17:56:11 -05:00
fixed output file names in html pages, fixed amber function bindings, replaced print command with build, fixed plugin functions, implemented zs and exec functions
This commit is contained in:
Serge A. Zaitsev
parent
80561bf9cc
commit
9d486cc767
289
zs.go
289
zs.go
@ -7,7 +7,6 @@ import (
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"io/ioutil"
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"log"
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"os"
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"os/exec"
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"path"
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"path/filepath"
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"strings"
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@ -25,17 +24,7 @@ const (
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)
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type Vars map[string]string
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// Splits a string in exactly two parts by delimiter
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// If no delimiter is found - the second string is be empty
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func split2(s, delim string) (string, string) {
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parts := strings.SplitN(s, delim, 2)
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if len(parts) == 2 {
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return parts[0], parts[1]
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} else {
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return parts[0], ""
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}
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}
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type Funcs template.FuncMap
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// Parses markdown content. Returns parsed header variables and content
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func md(path string, globals Vars) (Vars, string, error) {
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@ -77,15 +66,26 @@ func md(path string, globals Vars) (Vars, string, error) {
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}
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// Use standard Go templates
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func render(s string, funcs template.FuncMap, vars Vars) (string, error) {
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f := template.FuncMap{}
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func render(s string, funcs Funcs, vars Vars) (string, error) {
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f := Funcs{}
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for k, v := range funcs {
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f[k] = v
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}
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for k, v := range vars {
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f[k] = varFunc(v)
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}
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tmpl, err := template.New("").Funcs(f).Parse(s)
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// Plugin functions
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files, _ := ioutil.ReadDir(ZSDIR)
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for _, file := range files {
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if !file.IsDir() {
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name := file.Name()
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if !strings.HasSuffix(name, ".html") && !strings.HasSuffix(name, ".amber") {
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f[strings.TrimSuffix(name, filepath.Ext(name))] = pluginFunc(name, vars)
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}
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}
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}
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tmpl, err := template.New("").Funcs(template.FuncMap(f)).Parse(s)
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if err != nil {
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return "", err
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}
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@ -96,60 +96,8 @@ func render(s string, funcs template.FuncMap, vars Vars) (string, error) {
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return string(out.Bytes()), nil
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}
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// Converts zs markdown variables into environment variables
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func env(vars Vars) []string {
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env := []string{"ZS=" + os.Args[0], "ZS_OUTDIR=" + PUBDIR}
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env = append(env, os.Environ()...)
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if vars != nil {
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for k, v := range vars {
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env = append(env, "ZS_"+strings.ToUpper(k)+"="+v)
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}
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}
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return env
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}
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// Runs command with given arguments and variables, intercepts stderr and
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// redirects stdout into the given writer
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func run(cmd string, args []string, vars Vars, output io.Writer) error {
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var errbuf bytes.Buffer
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c := exec.Command(cmd, args...)
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c.Env = env(vars)
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c.Stdout = output
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c.Stderr = &errbuf
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err := c.Run()
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if errbuf.Len() > 0 {
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log.Println("ERROR:", errbuf.String())
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}
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if err != nil {
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return err
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}
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return nil
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}
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// Expands macro: either replacing it with the variable value, or
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// running the plugin command and replacing it with the command's output
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func eval(cmd []string, vars Vars) (string, error) {
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outbuf := bytes.NewBuffer(nil)
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err := run(path.Join(ZSDIR, cmd[0]), cmd[1:], vars, outbuf)
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if err != nil {
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if _, ok := err.(*exec.ExitError); ok {
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return "", err
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}
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outbuf = bytes.NewBuffer(nil)
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err := run(cmd[0], cmd[1:], vars, outbuf)
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// Return exit errors, but ignore if the command was not found
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if _, ok := err.(*exec.ExitError); ok {
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return "", err
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}
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}
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return outbuf.String(), nil
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}
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// Renders markdown with the given layout into html expanding all the macros
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func buildMarkdown(path string, funcs template.FuncMap, vars Vars) error {
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func buildMarkdown(path string, w io.Writer, funcs Funcs, vars Vars) error {
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v, body, err := md(path, vars)
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if err != nil {
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return err
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@ -159,18 +107,24 @@ func buildMarkdown(path string, funcs template.FuncMap, vars Vars) error {
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return err
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}
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v["content"] = string(blackfriday.MarkdownBasic([]byte(content)))
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if w == nil {
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out, err := os.Create(filepath.Join(PUBDIR, renameExt(path, "", ".html")))
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if err != nil {
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return err
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}
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defer out.Close()
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w = out
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}
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if strings.HasSuffix(v["layout"], ".amber") {
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return buildAmber(filepath.Join(ZSDIR, v["layout"]),
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renameExt(path, "", ".html"), funcs, v)
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return buildAmber(filepath.Join(ZSDIR, v["layout"]), w, funcs, v)
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} else {
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return buildPlain(filepath.Join(ZSDIR, v["layout"]),
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renameExt(path, "", ".html"), funcs, v)
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return buildHTML(filepath.Join(ZSDIR, v["layout"]), w, funcs, v)
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}
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}
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// Renders text file expanding all variable macros inside it
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func buildPlain(in, out string, funcs template.FuncMap, vars Vars) error {
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b, err := ioutil.ReadFile(in)
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func buildHTML(path string, w io.Writer, funcs Funcs, vars Vars) error {
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b, err := ioutil.ReadFile(path)
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if err != nil {
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return err
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}
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@ -178,7 +132,7 @@ func buildPlain(in, out string, funcs template.FuncMap, vars Vars) error {
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if err != nil {
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return err
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}
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output := filepath.Join(PUBDIR, out)
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output := filepath.Join(PUBDIR, path)
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if s, ok := vars["output"]; ok {
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output = s
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}
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@ -190,9 +144,9 @@ func buildPlain(in, out string, funcs template.FuncMap, vars Vars) error {
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}
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// Renders .amber file into .html
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func buildAmber(in, out string, funcs template.FuncMap, vars Vars) error {
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func buildAmber(path string, w io.Writer, funcs Funcs, vars Vars) error {
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a := amber.New()
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err := a.ParseFile(in)
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err := a.ParseFile(path)
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if err != nil {
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return err
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}
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@ -200,110 +154,80 @@ func buildAmber(in, out string, funcs template.FuncMap, vars Vars) error {
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if err != nil {
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return err
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}
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//amber.FuncMap = amber.FuncMap
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f, err := os.Create(filepath.Join(PUBDIR, out))
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if err != nil {
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return err
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if w == nil {
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f, err := os.Create(filepath.Join(PUBDIR, renameExt(path, ".amber", ".html")))
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if err != nil {
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return err
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}
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defer f.Close()
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w = f
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}
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defer f.Close()
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return t.Execute(f, vars)
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return t.Execute(w, vars)
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}
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// Compiles .gcss into .css
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func buildGCSS(path string) error {
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func buildGCSS(path string, w io.Writer) error {
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f, err := os.Open(path)
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if err != nil {
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return err
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}
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s := strings.TrimSuffix(path, ".gcss") + ".css"
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css, err := os.Create(filepath.Join(PUBDIR, s))
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defer f.Close()
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if w == nil {
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s := strings.TrimSuffix(path, ".gcss") + ".css"
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css, err := os.Create(filepath.Join(PUBDIR, s))
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if err != nil {
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return err
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}
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defer css.Close()
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w = css
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}
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_, err = gcss.Compile(w, f)
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return err
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}
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// Copies file as is from path to writer
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func buildRaw(path string, w io.Writer) error {
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in, err := os.Open(path)
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if err != nil {
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return err
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}
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defer f.Close()
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defer css.Close()
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_, err = gcss.Compile(css, f)
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return err
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}
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// Copies file from working directory into public directory
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func copyFile(path string) (err error) {
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var in, out *os.File
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if in, err = os.Open(path); err == nil {
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defer in.Close()
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if out, err = os.Create(filepath.Join(PUBDIR, path)); err == nil {
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defer in.Close()
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if w == nil {
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if out, err := os.Create(filepath.Join(PUBDIR, path)); err != nil {
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return err
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} else {
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defer out.Close()
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_, err = io.Copy(out, in)
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w = out
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}
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}
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_, err = io.Copy(w, in)
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return err
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}
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func varFunc(s string) func() string {
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return func() string {
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return s
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func build(path string, w io.Writer, funcs Funcs, vars Vars) error {
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ext := filepath.Ext(path)
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if ext == ".md" || ext == ".mkd" {
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return buildMarkdown(path, w, funcs, vars)
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} else if ext == ".html" || ext == ".xml" {
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return buildHTML(path, w, funcs, vars)
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} else if ext == ".amber" {
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return buildAmber(path, w, funcs, vars)
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} else if ext == ".gcss" {
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return buildGCSS(path, w)
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} else {
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return buildRaw(path, w)
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}
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}
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func pluginFunc(cmd string) func() string {
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return func() string {
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return "Not implemented yet"
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}
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}
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func createFuncs() template.FuncMap {
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// Builtin functions
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funcs := template.FuncMap{
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"exec": func(s ...string) string {
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// Run external command with arguments
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return ""
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},
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"zs": func(args ...string) string {
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// Run zs with arguments
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return ""
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},
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}
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// Plugin functions
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files, _ := ioutil.ReadDir(ZSDIR)
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for _, f := range files {
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if !f.IsDir() {
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name := f.Name()
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if !strings.HasSuffix(name, ".html") && !strings.HasSuffix(name, ".amber") {
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funcs[strings.TrimSuffix(name, filepath.Ext(name))] = pluginFunc(name)
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}
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}
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}
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return funcs
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}
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func renameExt(path, from, to string) string {
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if from == "" {
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from = filepath.Ext(path)
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}
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return strings.TrimSuffix(path, from) + to
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}
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func globals() Vars {
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vars := Vars{}
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for _, e := range os.Environ() {
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pair := strings.Split(e, "=")
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if strings.HasPrefix(pair[0], "ZS_") {
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vars[strings.ToLower(pair[0][3:])] = pair[1]
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}
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}
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return vars
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}
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func buildAll(once bool) {
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func buildAll(watch bool) {
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lastModified := time.Unix(0, 0)
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modified := false
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vars := globals()
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for {
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os.Mkdir(PUBDIR, 0755)
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funcs := createFuncs()
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funcs := builtins()
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err := filepath.Walk(".", func(path string, info os.FileInfo, err error) error {
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// ignore hidden files and directories
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if filepath.Base(path)[0] == '.' || strings.HasPrefix(path, ".") {
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@ -320,23 +244,8 @@ func buildAll(once bool) {
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run(filepath.Join(ZSDIR, "pre"), []string{}, nil, nil)
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modified = true
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}
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ext := filepath.Ext(path)
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if ext == ".md" || ext == ".mkd" {
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log.Println("md: ", path)
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return buildMarkdown(path, funcs, vars)
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} else if ext == ".html" || ext == ".xml" {
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log.Println("html: ", path)
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return buildPlain(path, path, funcs, vars)
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} else if ext == ".amber" {
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log.Println("html: ", path)
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return buildAmber(path, renameExt(path, ".amber", ".html"), funcs, vars)
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} else if ext == ".gcss" {
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log.Println("css: ", path)
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return buildGCSS(path)
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} else {
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log.Println("raw: ", path)
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return copyFile(path)
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}
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log.Println("build: ", path)
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return build(path, nil, funcs, vars)
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}
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return nil
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})
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@ -349,10 +258,10 @@ func buildAll(once bool) {
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run(filepath.Join(ZSDIR, "post"), []string{}, nil, nil)
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modified = false
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}
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lastModified = time.Now()
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if once {
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if !watch {
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break
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}
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lastModified = time.Now()
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time.Sleep(1 * time.Second)
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}
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}
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@ -366,27 +275,23 @@ func main() {
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args := os.Args[2:]
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switch cmd {
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case "build":
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buildAll(true)
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buildAll(false)
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case "watch":
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buildAll(false) // pass duration
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case "var":
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if len(args) == 0 {
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log.Println("ERROR: filename expected")
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return
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}
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if vars, _, err := md(args[0], globals()); err == nil {
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if len(args) > 1 {
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for _, a := range args[1:] {
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fmt.Println(vars[a])
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}
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} else {
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for k, v := range vars {
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fmt.Println(k + ":" + v)
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}
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}
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buildAll(true)
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case "print":
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if len(args) != 1 {
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fmt.Println("ERROR: filename expected")
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} else {
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log.Println("ERROR:", err)
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build(args[0], os.Stdout, builtins(), globals())
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}
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case "var":
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fmt.Println(Var(args))
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case "lorem":
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fmt.Println(Lorem(args))
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case "dateparse":
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fmt.Println(DateParse(args))
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case "datefmt":
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fmt.Println(DateFmt(args))
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default:
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err := run(path.Join(ZSDIR, cmd), args, Vars{}, os.Stdout)
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if err != nil {
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72
zs_ext.go
Normal file
72
zs_ext.go
Normal file
@ -0,0 +1,72 @@
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package main
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import (
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"strconv"
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"strings"
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"time"
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"github.com/drhodes/golorem"
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)
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// zs var <filename> -- returns list of variables and their values
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// zs var <filename> <var...> -- returns list of variable values
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func Var(args []string) string {
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if len(args) == 0 {
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return "var: filename expected"
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} else {
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s := ""
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if vars, _, err := md(args[0], globals()); err != nil {
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return "var: " + err.Error()
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} else {
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if len(args) > 1 {
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for _, a := range args[1:] {
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s = s + vars[a] + "\n"
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}
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} else {
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for k, v := range vars {
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s = s + k + ":" + v + "\n"
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}
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}
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}
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return strings.TrimSpace(s)
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}
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}
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// zs lorem <n> -- returns <n> random lorem ipsum sentences
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func Lorem(args []string) string {
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if len(args) > 1 {
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return "lorem: invalid usage"
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}
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if len(args) == 0 {
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return lorem.Paragraph(5, 5)
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}
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if n, err := strconv.Atoi(args[0]); err == nil {
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return lorem.Paragraph(n, n)
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} else {
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return "lorem: " + err.Error()
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}
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}
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// zs datefmt <fmt> <date> -- returns formatted date from unix time
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func DateFmt(args []string) string {
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if len(args) == 0 || len(args) > 2 {
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return "datefmt: invalid usage"
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}
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if n, err := strconv.ParseInt(args[1], 10, 64); err == nil {
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return time.Unix(n, 0).Format(args[0])
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} else {
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return "datefmt: " + err.Error()
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}
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}
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// zs dateparse <fmt> <date> -- returns unix time from the formatted date
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func DateParse(args []string) string {
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if len(args) == 0 || len(args) > 2 {
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return "dateparse: invalid usage"
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}
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if d, err := time.Parse(args[0], args[1]); err != nil {
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return "dateparse: " + err.Error()
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} else {
|
||||
return strconv.FormatInt(d.Unix(), 10)
|
||||
}
|
||||
}
|
||||
22
zs_test.go
22
zs_test.go
@ -6,10 +6,8 @@ import (
|
||||
"io/ioutil"
|
||||
"log"
|
||||
"os"
|
||||
"os/exec"
|
||||
"strings"
|
||||
"testing"
|
||||
"text/template"
|
||||
)
|
||||
|
||||
func TestSplit2(t *testing.T) {
|
||||
@ -78,7 +76,7 @@ this: is a content`), Vars{})
|
||||
|
||||
func TestRender(t *testing.T) {
|
||||
vars := map[string]string{"foo": "bar"}
|
||||
funcs := template.FuncMap{
|
||||
funcs := Funcs{
|
||||
"greet": func(s ...string) string {
|
||||
if len(s) == 0 {
|
||||
return "hello"
|
||||
@ -138,24 +136,6 @@ func TestRun(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
func TestEvalCommand(t *testing.T) {
|
||||
s, err := eval([]string{"echo", "hello"}, map[string]string{})
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
}
|
||||
if s != "hello\n" {
|
||||
t.Error(s)
|
||||
}
|
||||
_, err = eval([]string{"cat", "bogus/file"}, map[string]string{})
|
||||
if _, ok := err.(*exec.ExitError); !ok {
|
||||
t.Error("expected ExitError")
|
||||
}
|
||||
_, err = eval([]string{"missing command"}, map[string]string{})
|
||||
if err != nil {
|
||||
t.Error("missing command should be ignored")
|
||||
}
|
||||
}
|
||||
|
||||
func TestHelperProcess(*testing.T) {
|
||||
if os.Getenv("ZS_HELPER") != "1" {
|
||||
return
|
||||
|
||||
108
zs_util.go
Normal file
108
zs_util.go
Normal file
@ -0,0 +1,108 @@
|
||||
package main
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"io"
|
||||
"log"
|
||||
"os"
|
||||
"os/exec"
|
||||
"path/filepath"
|
||||
"strings"
|
||||
)
|
||||
|
||||
func varFunc(s string) func() string {
|
||||
return func() string {
|
||||
return s
|
||||
}
|
||||
}
|
||||
|
||||
func pluginFunc(cmd string, vars Vars) func(args ...string) string {
|
||||
return func(args ...string) string {
|
||||
out := bytes.NewBuffer(nil)
|
||||
if err := run(cmd, args, vars, out); err != nil {
|
||||
return cmd + ":" + err.Error()
|
||||
} else {
|
||||
return string(out.Bytes())
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func builtins() Funcs {
|
||||
exec := func(s ...string) string {
|
||||
return ""
|
||||
}
|
||||
return Funcs{
|
||||
"exec": exec,
|
||||
"zs": func(args ...string) string {
|
||||
cmd := []string{"zs"}
|
||||
cmd = append(cmd, args...)
|
||||
return exec(cmd...)
|
||||
},
|
||||
}
|
||||
}
|
||||
|
||||
func renameExt(path, from, to string) string {
|
||||
if from == "" {
|
||||
from = filepath.Ext(path)
|
||||
}
|
||||
if strings.HasSuffix(path, from) {
|
||||
return strings.TrimSuffix(path, from) + to
|
||||
} else {
|
||||
return path
|
||||
}
|
||||
}
|
||||
|
||||
func globals() Vars {
|
||||
vars := Vars{}
|
||||
for _, e := range os.Environ() {
|
||||
pair := strings.Split(e, "=")
|
||||
if strings.HasPrefix(pair[0], "ZS_") {
|
||||
vars[strings.ToLower(pair[0][3:])] = pair[1]
|
||||
}
|
||||
}
|
||||
return vars
|
||||
}
|
||||
|
||||
// Converts zs markdown variables into environment variables
|
||||
func env(vars Vars) []string {
|
||||
env := []string{"ZS=" + os.Args[0], "ZS_OUTDIR=" + PUBDIR}
|
||||
env = append(env, os.Environ()...)
|
||||
if vars != nil {
|
||||
for k, v := range vars {
|
||||
env = append(env, "ZS_"+strings.ToUpper(k)+"="+v)
|
||||
}
|
||||
}
|
||||
return env
|
||||
}
|
||||
|
||||
// Runs command with given arguments and variables, intercepts stderr and
|
||||
// redirects stdout into the given writer
|
||||
func run(cmd string, args []string, vars Vars, output io.Writer) error {
|
||||
var errbuf bytes.Buffer
|
||||
c := exec.Command(cmd, args...)
|
||||
c.Env = env(vars)
|
||||
c.Stdout = output
|
||||
c.Stderr = &errbuf
|
||||
|
||||
err := c.Run()
|
||||
|
||||
if errbuf.Len() > 0 {
|
||||
log.Println("ERROR:", errbuf.String())
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Splits a string in exactly two parts by delimiter
|
||||
// If no delimiter is found - the second string is be empty
|
||||
func split2(s, delim string) (string, string) {
|
||||
parts := strings.SplitN(s, delim, 2)
|
||||
if len(parts) == 2 {
|
||||
return parts[0], parts[1]
|
||||
} else {
|
||||
return parts[0], ""
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user