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package main
import (
"bytes"
"errors"
"html/template"
"net/http"
"path"
"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/plumbing/object"
)
func handle_repo_tree(w http.ResponseWriter, r *http.Request, params map[string]string) {
data := make(map[string]any)
data["global"] = global_data
raw_path_spec := params["rest"]
group_name, repo_name, path_spec := params["group_name"], params["repo_name"], strings.TrimSuffix(raw_path_spec, "/")
ref_type, ref_name, err := get_param_ref_and_type(r)
if err != nil {
if errors.Is(err, err_no_ref_spec) {
ref_type = "head"
} else {
_, _ = w.Write([]byte("Error querying ref type: " + err.Error()))
return
}
}
data["ref_type"], data["ref"], data["group_name"], data["repo_name"], data["path_spec"] = ref_type, ref_name, group_name, repo_name, path_spec
repo, err := open_git_repo(r.Context(), group_name, repo_name)
if err != nil {
_, _ = w.Write([]byte("Error opening repo: " + err.Error()))
return
}
ref_hash, err := get_ref_hash_from_type_and_name(repo, ref_type, ref_name)
if err != nil {
_, _ = w.Write([]byte("Error getting ref hash: " + err.Error()))
return
}
commit_object, err := repo.CommitObject(ref_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
}
var target *object.Tree
if path_spec == "" {
target = tree
} else {
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
}
if len(raw_path_spec) != 0 && raw_path_spec[len(raw_path_spec)-1] == '/' {
http.Redirect(w, r, "../"+path_spec, http.StatusSeeOther)
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 tokenizing code: " + err.Error()))
return
}
var formatted_unencapsulated bytes.Buffer
style := chroma_styles.Get("autumn")
formatter := chroma_formatters_html.New(chroma_formatters_html.WithClasses(true), chroma_formatters_html.TabWidth(8))
err = formatter.Format(&formatted_unencapsulated, style, iterator)
if err != nil {
_, _ = w.Write([]byte("Error formatting code: " + err.Error()))
return
}
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
}
}
if len(raw_path_spec) != 0 && raw_path_spec[len(raw_path_spec)-1] != '/' {
http.Redirect(w, r, path.Base(path_spec)+"/", http.StatusSeeOther)
return
}
data["readme_filename"], data["readme"] = render_readme_at_tree(target)
data["files"] = build_display_git_tree(target)
err = templates.ExecuteTemplate(w, "repo_tree_dir", data)
if err != nil {
_, _ = w.Write([]byte("Error rendering template: " + err.Error()))
return
}
}
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