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package main
import (
"bytes"
"html/template"
"net/http"
"path/filepath"
"strings"
chroma_formatters_html "github.com/alecthomas/chroma/v2/formatters/html"
chroma_lexers "github.com/alecthomas/chroma/v2/lexers"
chroma_styles "github.com/alecthomas/chroma/v2/styles"
"github.com/go-git/go-git/v5"
"github.com/go-git/go-git/v5/plumbing/object"
"github.com/microcosm-cc/bluemonday"
"github.com/yuin/goldmark"
)
func handle_repo_tree(w http.ResponseWriter, r *http.Request) {
data := make(map[string]any)
// TODO: Sanitize path values
category_name, repo_name, path_spec := r.PathValue("category_name"), r.PathValue("repo_name"), strings.TrimSuffix(r.PathValue("rest"), "/")
data["category_name"], data["repo_name"], data["path_spec"] = category_name, repo_name, path_spec
repo, err := git.PlainOpen(filepath.Join(config.Git.Root, category_name, repo_name+".git"))
if err != nil {
_, _ = w.Write([]byte("Error opening repo: " + err.Error()))
return
}
head, err := repo.Head()
if err != nil {
_, _ = w.Write([]byte("Error getting repo HEAD: " + err.Error()))
return
}
head_hash := head.Hash()
commit_iter, err := repo.Log(&git.LogOptions{From: head_hash})
if err != nil {
_, _ = w.Write([]byte("Error getting repo commits: " + err.Error()))
return
}
recent_commits := make([]*object.Commit, 0)
defer commit_iter.Close()
for range 3 {
this_recent_commit, err := commit_iter.Next()
if err != nil {
_, _ = w.Write([]byte("Error getting a recent commit: " + err.Error()))
return
}
recent_commits = append(recent_commits, this_recent_commit)
}
data["commits"] = recent_commits
commit_object, err := repo.CommitObject(head_hash)
if err != nil {
_, _ = w.Write([]byte("Error getting commit object: " + err.Error()))
return
}
tree, err := commit_object.Tree()
if err != nil {
_, _ = w.Write([]byte("Error getting file tree: " + err.Error()))
return
}
target, err := tree.Tree(path_spec)
if err != nil {
file, err := tree.File(path_spec)
if err != nil {
_, _ = w.Write([]byte("Error retrieving path: " + err.Error()))
return
}
file_contents, err := file.Contents()
if err != nil {
_, _ = w.Write([]byte("Error reading file: " + err.Error()))
return
}
lexer := chroma_lexers.Match(path_spec)
if lexer == nil {
lexer = chroma_lexers.Fallback
}
iterator, err := lexer.Tokenise(nil, file_contents)
if err != nil {
_, _ = w.Write([]byte("Error rendering code: " + err.Error()))
return
}
var formatted_unencapsulated bytes.Buffer
style := chroma_styles.Get("emacs")
formatter := chroma_formatters_html.New(chroma_formatters_html.WithClasses(true), chroma_formatters_html.TabWidth(8))
formatter.Format(&formatted_unencapsulated, style, iterator)
formatted_encapsulated := template.HTML(formatted_unencapsulated.Bytes())
data["file_contents"] = formatted_encapsulated
err = templates.ExecuteTemplate(w, "repo_tree_file", data)
if err != nil {
_, _ = w.Write([]byte("Error rendering template: " + err.Error()))
return
}
return
}
readme_file, err := target.File("README.md")
if err != nil {
data["readme"] = "There is no README for this directory."
} else {
readme_file_contents, err := readme_file.Contents()
if err != nil {
data["readme"] = "There is no README for this directory."
} else {
var readme_rendered_unsafe bytes.Buffer
err = goldmark.Convert([]byte(readme_file_contents), &readme_rendered_unsafe)
if err != nil {
readme_rendered_unsafe.WriteString("Unable to render README: " + err.Error())
}
readme_rendered_safe := template.HTML(bluemonday.UGCPolicy().SanitizeBytes(readme_rendered_unsafe.Bytes()))
data["readme"] = readme_rendered_safe
}
}
display_git_tree := make([]display_git_tree_entry_t, 0)
for _, entry := range target.Entries {
display_git_tree_entry := display_git_tree_entry_t{}
os_mode, err := entry.Mode.ToOSFileMode()
if err != nil {
display_git_tree_entry.Mode = "----"
} else {
display_git_tree_entry.Mode = os_mode.String()[:4]
}
display_git_tree_entry.Is_file = entry.Mode.IsFile()
display_git_tree_entry.Size, err = target.Size(entry.Name)
if err != nil {
display_git_tree_entry.Size = 0
}
display_git_tree_entry.Name = entry.Name
display_git_tree = append(display_git_tree, display_git_tree_entry)
}
data["files"] = display_git_tree
err = templates.ExecuteTemplate(w, "repo_tree_dir", data)
if err != nil {
_, _ = w.Write([]byte("Error rendering template: " + err.Error()))
return
}
}
|
