Resolve name and email from mailmap

The mailmap file is consulted to obtain the canonical name/email of an
author or committer of a commit, or a tagger of a tag.

Signed-off-by: Sebastian <sebastian@sebsite.pw>

gitsrht/blueprints/api/porcelain.py

@@ -20,17 +20,19 @@ from srht.validation import Validation
 porcelain = Blueprint("api_porcelain", __name__)
 
 # See also gitsrht-update-hook/types.go
-def commit_to_dict(c):
+def commit_to_dict(c, repo):
+    author = repo.author(c)
+    committer = repo.committer(c)
     return {
         "id": str(c.id),
         "short_id": c.short_id,
         "author": {
-            "email": c.author.email,
-            "name": c.author.name,
+            "email": author.email,
+            "name": author.name,
         },
         "committer": {
-            "email": c.committer.email,
-            "name": c.committer.name,
+            "email": committer.email,
+            "name": committer.name,
         },
         "timestamp": commit_time(c),
         "message": c.message,
@@ -153,7 +155,7 @@ def repo_commits_GET(username, reponame, ref, path):
             next_id = str(commits[-1].id)
         return {
             "next": next_id,
-            "results": [commit_to_dict(c) for c in commits],
+            "results": [commit_to_dict(c, repo) for c in commits],
             # TODO: Track total commits per repo per branch
             "total": -1,
             "results_per_page": commits_per_page

gitsrht/blueprints/repo.py

@@ -503,7 +503,7 @@ def log(owner, repo, ref, path):
 
         has_more = commits and len(commits) == 21
 
-        author_emails = set((commit.author.email for commit in commits[:20]))
+        author_emails = set((repo.author(commit).email for commit in commits[:20]))
         authors = {user.email:user for user in User.query.filter(User.email.in_(author_emails)).all()}
         return render_template("log.html", view="log",
                 owner=owner, repo=repo, ref=ref, path=path.split("/"),
@@ -671,7 +671,7 @@ def refs_rss(owner, repo):
 
     def _ref_sort_key(ref):
         target = git_repo.get(ref.target)
-        author = target.author if hasattr(target, 'author') else target.get_object().author
+        author = repo.author(target)
         return author.time + author.offset
 
     references = sorted(references, key=_ref_sort_key, reverse=True)[:20]

gitsrht/git.py

@@ -1,6 +1,6 @@
 from collections import deque
 from datetime import datetime, timedelta, timezone
-from pygit2 import Repository as GitRepository, Tag
+from pygit2 import Repository as GitRepository, Mailmap, Tag
 from markupsafe import Markup, escape
 from stat import filemode
 import pygit2
@@ -98,6 +98,7 @@ def get_log(git_repo, commit, path="", commits_per_page=20, until=None):
 class Repository(GitRepository):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
+        self._mailmap = Mailmap.from_repository(self)
 
     def __enter__(self):
         return self
@@ -122,6 +123,18 @@ class Repository(GitRepository):
         else:
             return None
 
+    def author(self, obj):
+        sig = obj.author if hasattr(obj, "author") else obj.get_object().author
+        return self._mailmap.resolve_signature(sig)
+
+    def committer(self, obj):
+        sig = obj.committer if hasattr(obj, "committer") else obj.get_object().committer
+        return self._mailmap.resolve_signature(sig)
+
+    def tagger(self, obj):
+        sig = obj.tagger if hasattr(obj, "tagger") else obj.get_object().tagger
+        return self._mailmap.resolve_signature(sig)
+
     @property
     def is_empty(self):
         return len(self.raw_listall_branches(pygit2.GIT_BRANCH_LOCAL)) == 0

gitsrht/rss.py

@@ -45,7 +45,7 @@ def ref_to_item(repo, reference):
     with GitRepository(repo.path) as git_repo:
         target = git_repo.get(reference.target)
 
-    author = target.author if hasattr(target, 'author') else target.get_object().author
+    author = repo.author(target)
     time = aware_time(author).strftime(RFC_822_FORMAT)
     url = ref_url(repo, reference)
     description = target.message.strip().replace("\n", "<br />")
@@ -64,7 +64,8 @@ def commit_to_item(repo, commit):
     time = aware_time(commit.author).strftime(RFC_822_FORMAT)
     url = commit_url(repo, commit)
     title, description = commit_title_description(commit)
-    author = f"{commit.author.email} ({commit.author.name})"
+    author = repo.author(commit)
+    author = f"{author.email} ({author.name})"
 
     element = ET.Element("item")
     ET.SubElement(element, "title").text = title

gitsrht/templates/blame.html

@@ -27,12 +27,13 @@ pre, body {
           repo=repo.name,
           ref=ref)}}"
       >{{commit.id.hex[:8]}}</a> &mdash;
-      {% set author_user = lookup_user(commit.author.email) %}
+      {% set author = repo.author(commit) %}
+      {% set author_user = lookup_user(author.email) %}
       {% if author_user %}
       <a href="{{url_for("public.user_index",
-        username=author_user.username)}}">{{commit.author.name}}</a>
+        username=author_user.username)}}">{{author.name}}</a>
       {% else %}
-      {{commit.author.name}}
+      {{author.name}}
       {% endif %}
       {{trim_commit(commit.message)}}
       <span class="text-muted">

gitsrht/templates/blob.html

@@ -24,12 +24,13 @@ pre {
           repo=repo.name,
           ref=ref)}}"
       >{{commit.id.hex[:8]}}</a> &mdash;
-      {% set author_user = lookup_user(commit.author.email) %}
+      {% set author = repo.author(commit) %}
+      {% set author_user = lookup_user(author.email) %}
       {% if author_user %}
       <a href="{{url_for("public.user_index",
-        username=author_user.username)}}">{{commit.author.name}}</a>
+        username=author_user.username)}}">{{author.name}}</a>
       {% else %}
-      {{commit.author.name}}
+      {{author.name}}
       {% endif %}
       {{trim_commit(commit.message)}}
       <span class="text-muted">

gitsrht/templates/refs.html

@@ -38,11 +38,11 @@
           <h4 style="margin-bottom: 0.5rem">
             {% if isinstance(tag, pygit2.Commit) %}
             {% set refname = commit.id.hex %}
-            {% set author = commit.author %}
+            {% set author = repo.author(commit) %}
             {{ref[len("refs/tags/"):]}}
             {% else %}
             {% set refname = tag.raw_name %}
-            {% set author = tag.tagger %}
+            {% set author = repo.tagger(tag) %}
             <a href="{{url_for("repo.ref",
                 owner=repo.owner.canonical_name,
                 repo=repo.name,

gitsrht/templates/tree.html

@@ -16,12 +16,13 @@
           repo=repo.name,
           ref=ref)}}"
       >{{commit.id.hex[:8]}}</a> &mdash;
-      {% set author_user = lookup_user(commit.author.email) %}
+      {% set author = repo.author(commit) %}
+      {% set author_user = lookup_user(author.email) %}
       {% if author_user %}
       <a href="{{url_for("public.user_index",
-        username=author_user.username)}}">{{commit.author.name}}</a>
+        username=author_user.username)}}">{{author.name}}</a>
       {% else %}
-      {{commit.author.name}}
+      {{author.name}}
       {% endif %}
       {{trim_commit(commit.message)}}
       <span class="text-muted">

gitsrht/templates/utils.html

@@ -93,12 +93,13 @@ endif %}{% endfor %}
   >{{c.id.hex[:8]}}</a>
   {% endif %}
   &mdash;
-  {% set author_user = lookup(c.author.email) %}
+  {% set author = repo.author(c) %}
+  {% set author_user = lookup(author.email) %}
   {% if author_user %}
   <a href="{{url_for("public.user_index",
-    username=author_user.username)}}">{{c.author.name}}</a>
+    username=author_user.username)}}">{{author.name}}</a>
   {% else %}
-  {{c.author.name}}
+  {{author.name}}
   {% endif %}
   <small class="pull-right">
     <a

gitsrht/types/__init__.py

@@ -148,5 +148,14 @@ class Repository(Base):
             self._git_repo = GitRepository(self.path)
         return self._git_repo
 
+    def author(self, obj):
+        return self.git_repo.author(obj)
+
+    def committer(self, obj):
+        return self.git_repo.committer(obj)
+
+    def tagger(self, obj):
+        return self.git_repo.tagger(obj)
+
 from gitsrht.types.artifact import Artifact
 from gitsrht.types.sshkey import SSHKey