g2h: Add breadcrumb navigations to file and tree pages

3 files changed, 15 insertions, 2 deletions

diff --git a/g2h/file.py b/g2h/file.py
index 8f683cd..e07f251 100644
--- a/g2h/file.py
+++ b/g2h/file.py
@@ -1,5 +1,16 @@
 import os
 
+def generate_breadcrumbs(content_subdir, commit, dir, files):
+    breadcrumbs = '[/](/{})'.format(os.path.join(content_subdir, tree_join(commit, '')))
+    subpath = ''
+    for segment in dir.split(os.sep):
+        if not segment or len(segment) == 0:
+            continue
+        subpath = os.path.join(subpath, sanitize_file_name(segment, files))
+        breadcrumbs += '/[{}](/{})'.format(segment, os.path.join(content_subdir, tree_join(commit, subpath)))
+    return breadcrumbs
+
+
 def sanitize_file_name(file_name, files):
     if not file_name.startswith('.'):
         return file_name
diff --git a/g2h/file_page.py b/g2h/file_page.py
index b154ee5..67ddf6d 100644
--- a/g2h/file_page.py
+++ b/g2h/file_page.py
@@ -2,7 +2,7 @@ import base64
 import filetype
 import os
 
-from .file import sanitize_file_name, tree_join
+from .file import generate_breadcrumbs, sanitize_file_name, tree_join
 from .page import Page
 from .tree import safe_join
 
@@ -37,6 +37,7 @@ class FilePage(Page):
         content, file_type = bytes_to_content(file_bytes)
 
         return {
+            'breadcrumbs': generate_breadcrumbs(self.content_subdir, self.commit, os.path.join(self.file_path, self.file_name), self.tree.blobs),
             'content': content,
             'content_subdir': self.content_subdir,
             'file_extension': os.path.splitext(self.file_name)[1].lstrip('.'),
diff --git a/g2h/tree_page.py b/g2h/tree_page.py
index 9b7a0d5..c36212c 100644
--- a/g2h/tree_page.py
+++ b/g2h/tree_page.py
@@ -1,6 +1,6 @@
 import os
 
-from .file import sanitize_file_name, tree_join
+from .file import generate_breadcrumbs, sanitize_file_name, tree_join
 from .page import Page
 from .tree import safe_join
 
@@ -41,6 +41,7 @@ class TreePage(Page):
 
     def context(self):
         return {
+            'breadcrumbs': generate_breadcrumbs(self.content_subdir, self.commit, self.sub_tree, self.tree.blobs),
             'content_subdir': self.content_subdir,
             'entries': self._get_entries(),
             # TODO: Make this fit the rest of the system.