add support for viewing specific commits

pages/commit.go

@@ -0,0 +1,123 @@
+package pages
+
+import (
+	"bufio"
+	"bytes"
+	"context"
+	htmlfmt "github.com/alecthomas/chroma/v2/formatters/html"
+	"github.com/alecthomas/chroma/v2/lexers"
+	"github.com/alecthomas/chroma/v2/styles"
+	"github.com/carlmjohnson/requests"
+	"github.com/gocolly/colly"
+	"github.com/gofiber/fiber/v2"
+	"html/template"
+	"log"
+	"net/http"
+	"os"
+	"regexp"
+	"strings"
+)
+
+type Commit struct {
+	CommitName          string
+	CommitDesc          string
+	CommitHashShortened string
+	CommitDate          string
+	Commiter            []string
+	CommitToBranch      string
+	PreviousCommit      string
+	Additions           int64
+	Deletions           int64
+	ChangedFiles        int64
+	FullName            string
+}
+
+func HandleCommit(c *fiber.Ctx) error {
+	var commitArray []Commit
+
+	resp, statusErr := http.Get("https://github.com/" + c.Params("user") + "/" + c.Params("repo") + "/commit/" + c.Params("commit") + "/")
+	if statusErr != nil {
+		log.Println(statusErr)
+	}
+	if resp.StatusCode == 404 {
+		// I need a better way to do this
+		return c.Status(404).Render("error", fiber.Map{
+			"title": "Error",
+			"error": "Commit" + c.Params("commit") + "not found",
+		})
+	}
+	var file string
+	url := "https://github.com/" + c.Params("user") + "/" + c.Params("repo") + "/commit/" + c.Params("commit") + ".patch"
+	err := requests.
+		URL(url).
+		ToString(&file).
+		Fetch(context.Background())
+	if err != nil {
+		return c.Status(404).Render("error", fiber.Map{
+			"error": err,
+		})
+	}
+	re := regexp.MustCompile("\\A(?s).*?---(?-s).*\\n")
+	file = re.ReplaceAllString(file, "---\n")
+	lexer := lexers.Match("something.diff")
+	if lexer == nil {
+		lexer = lexers.Fallback
+	}
+	formatter := htmlfmt.New(
+		htmlfmt.WithClasses(true),
+		htmlfmt.WithLineNumbers(true),
+		htmlfmt.PreventSurroundingPre(false),
+	)
+
+	buf := bytes.Buffer{}
+	writer := bufio.NewWriter(&buf)
+	style := styles.Get("native")
+	tokens, err := lexer.Tokenise(nil, file)
+	if err != nil {
+		return c.Status(500).Render("error", fiber.Map{
+			"error": err,
+		})
+	}
+	formatter.Format(writer, style, tokens)
+
+	cssbuf := bytes.Buffer{}
+	cssw := bufio.NewWriter(&cssbuf)
+	formatter.WriteCSS(cssw, style)
+	writer.Flush()
+	cssw.Flush()
+
+	// Scraping
+	Scrape := Commit{}
+	UserAgent, ok := os.LookupEnv("GOTHUB_USER_AGENT")
+	if !ok {
+		UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36"
+	}
+
+	sc := colly.NewCollector(colly.AllowedDomains("github.com"), colly.UserAgent(UserAgent))
+	sc.OnHTML("div.commit", func(e *colly.HTMLElement) {
+		Scrape.CommitName = e.ChildText("div.commit-title")
+		Scrape.CommitDesc = e.ChildText("div.commit-desc pre")
+		Scrape.CommitHashShortened = e.ChildText("div.text-lg-right span.m-0 span.sha")
+		Scrape.PreviousCommit = e.ChildText("div.text-lg-right span.ml-0 a.sha")
+		Scrape.CommitDate = e.ChildText("div.flex-self-start relative-time")
+		Scrape.CommitToBranch = e.ChildText("ul.branches-list li.branch a")
+		e.ForEach("div.flex-self-start .commit-author", func(i int, el *colly.HTMLElement) {
+			Scrape.Commiter = append(Scrape.Commiter, strings.TrimPrefix(el.Attr("title"), "View all commits by "))
+		})
+	})
+	Scrape.FullName = c.Params("user") + "/" + c.Params("repo")
+	sc.Visit("https://github.com/" + c.Params("user") + "/" + c.Params("repo") + "/commit/" + c.Params("commit") + "/")
+	if len(Scrape.PreviousCommit) > 7 {
+		Minus := len(Scrape.PreviousCommit) - 7
+		Scrape.PreviousCommit = Scrape.PreviousCommit[:len(Scrape.PreviousCommit)-Minus]
+	}
+	// Add scrape-based info to commitArray
+	commitArray = append(commitArray, Scrape)
+
+	return c.Render("commit", fiber.Map{
+		"title":  "Commit " + Scrape.CommitName + " | " + c.Params("user") + "/" + c.Params("repo"),
+		"commit": commitArray,
+		"file":   template.HTML(buf.String()),
+		"css":    template.CSS(cssbuf.String()),
+	})
+}

serve/serve.go

@@ -139,6 +139,7 @@ func Serve(port string) {
 		}
 	})
 	app.Get("/:user/:repo", pages.HandleRepo)
+	app.Get("/:user/:repo/commit/:commit", pages.HandleCommit)
 	app.Get("/:user/:repo/info/+", func(c *fiber.Ctx) error {
 		// This is needed but it looks like git doesn't send it. Or maybe i just shouldn't program at midnight
 		param := "?service=git-upload-pack"

views/commit.html

@@ -0,0 +1,46 @@
+{{ template "header" .}}
+
+<main>
+  {{ if.commit }}
+  <style>
+    // prettier-ignore
+    {{.css}}
+    pre {
+      white-space: pre-wrap;
+      word-wrap: break-word;
+    }
+  </style>
+  {{ range $key, $value := .commit}}
+  <div class="download-parent">
+    <a href="/{{.FullName}}" class="button">Back to {{.FullName}}</a>
+  </div>
+
+  <div class="user-readme">
+    <div class="user-container">
+      <h3>{{.CommitHashShortened}} | {{.CommitName}}</h3>
+      <a
+        href="/{{.FullName}}/{{.CommitHashShortened}}.diff"
+        class="button secondary"
+        >Raw</a
+      >
+    </div>
+    {{.CommitName}} {{ if .CommitDesc }}
+    <pre>{{.CommitDesc}}</pre>
+    {{end}}
+    <p>
+      Commited on {{.CommitDate}} by {{range .Commiter}}
+      <a href="/{{.}}" target="_blank">@{{.}}</a>{{ end }}
+    </p>
+    <p>
+      Previous Commit:
+      <a href="/{{.FullName}}/commit/{{.PreviousCommit}}"
+        >{{.PreviousCommit}}</a
+      >
+    </p>
+  </div>
+  {{end}} {{ .file}} {{ else }}
+  <h2>Commit not found</h2>
+  <p>That commit doesn't exist.</p>
+  {{ end }}
+</main>
+{{ template "footer" .}}