We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Author and reviewer experience should ignore backouts
Author and reviewer experience should not be increased for commits that are backed out.

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `bugbug/repository.py`
Content:
```
1 # -*- coding: utf-8 -*-
2 # This Source Code Form is subject to the terms of the Mozilla Public
3 # License, v. 2.0. If a copy of the MPL was not distributed with this file,
4 # You can obtain one at http://mozilla.org/MPL/2.0/.
5 
6 import argparse
7 import concurrent.futures
8 import multiprocessing
9 import os
10 from collections import defaultdict
11 from collections import namedtuple
12 from datetime import datetime
13 
14 import hglib
15 import requests
16 from dateutil.relativedelta import relativedelta
17 from parsepatch.patch import Patch
18 from tqdm import tqdm
19 
20 from bugbug import db
21 
22 COMMITS_DB = 'data/commits.json'
23 db.register(COMMITS_DB, 'https://www.dropbox.com/s/mz3afgncx0siijc/commits.json.xz?dl=1')
24 
25 COMPONENTS = {}
26 
27 Commit = namedtuple('Commit', ['node', 'author', 'desc', 'date', 'bug', 'ever_backedout', 'author_email'])
28 
29 author_experience = {}
30 author_experience_90_days = {}
31 
32 
33 def get_commits():
34     return db.read(COMMITS_DB)
35 
36 
37 def _init(repo_dir):
38     global HG
39     HG = hglib.open(repo_dir)
40 
41 
42 def _transform(commit):
43     desc = commit.desc.decode('utf-8')
44 
45     obj = {
46         'author': commit.author.decode('utf-8'),
47         'desc': desc,
48         'date': str(commit.date),
49         'bug_id': commit.bug.decode('utf-8'),
50         'ever_backedout': commit.ever_backedout,
51         'added': 0,
52         'deleted': 0,
53         'files_modified_num': 0,
54         'types': set(),
55         'components': list(),
56         'author_experience': author_experience[commit],
57         'author_experience_90_days': author_experience_90_days[commit],
58         'author_email': commit.author_email.decode('utf-8'),
59     }
60 
61     patch = HG.export(revs=[commit.node], git=True)
62     patch_data = Patch.parse_patch(patch.decode('utf-8', 'ignore'), skip_comments=False, add_lines_for_new=True)
63     for path, stats in patch_data.items():
64         if 'added' not in stats:
65             # Must be a binary file
66             obj['types'].add('binary')
67             continue
68 
69         obj['added'] += len(stats['added']) + len(stats['touched'])
70         obj['deleted'] += len(stats['deleted']) + len(stats['touched'])
71         ext = os.path.splitext(path)[1]
72         if ext in ['.js', '.jsm']:
73             type_ = 'JavaScript'
74         elif ext in ['.c', '.cpp', '.h']:
75             type_ = 'C/C++'
76         elif ext in ['.java']:
77             type_ = 'Java'
78         elif ext in ['.py']:
79             type_ = 'Python'
80         else:
81             type_ = ext
82         obj['types'].add(type_)
83 
84     obj['files_modified_num'] = len(patch_data)
85 
86     # Covert to a list, as a set is not JSON-serializable.
87     obj['types'] = list(obj['types'])
88 
89     obj['components'] = list(set('::'.join(COMPONENTS[fl]) for fl in patch_data.keys() if COMPONENTS.get(fl)))
90 
91     return obj
92 
93 
94 def hg_log(hg, first_rev):
95     template = '{node}\\0{author}\\0{desc}\\0{date}\\0{bug}\\0{backedoutby}\\0{author|email}\\0'
96 
97     args = hglib.util.cmdbuilder(b'log', template=template, no_merges=True, rev=f'{first_rev}:tip')
98     x = hg.rawcommand(args)
99     out = x.split(b'\x00')[:-1]
100 
101     revs = []
102     for rev in hglib.util.grouper(template.count('\\0'), out):
103         posixtime = float(rev[3].split(b'.', 1)[0])
104         dt = datetime.fromtimestamp(posixtime)
105 
106         revs.append(Commit(
107             node=rev[0],
108             author=rev[1],
109             desc=rev[2],
110             date=dt,
111             bug=rev[4],
112             ever_backedout=(rev[5] != b''),
113             author_email=rev[6],
114         ))
115 
116     return revs
117 
118 
119 def get_rev(hg, date):
120     return hg.log(date=date.strftime('%Y-%m-%d'), limit=1)[0].node.decode('utf-8')
121 
122 
123 def download_commits(repo_dir, date_from):
124     hg = hglib.open(repo_dir)
125 
126     first_rev = get_rev(hg, date_from)
127 
128     commits = hg_log(hg, first_rev)
129     commits_num = len(commits)
130 
131     hg.close()
132 
133     # Total previous number of commits by the author.
134     total_commits_by_author = defaultdict(int)
135     # Previous commits by the author, in a 90 days window.
136     commits_by_author = defaultdict(list)
137 
138     global author_experience
139     global author_experience_90_days
140     for commit in commits:
141         author_experience[commit] = total_commits_by_author[commit.author]
142         total_commits_by_author[commit.author] += 1
143 
144         # Keep only the previous commits from a window of 90 days in the commits_by_author map.
145         cut = None
146 
147         for i, prev_commit in enumerate(commits_by_author[commit.author]):
148             if (commit.date - prev_commit.date).days <= 90:
149                 break
150 
151             cut = i
152 
153         if cut is not None:
154             commits_by_author[commit.author] = commits_by_author[commit.author][cut + 1:]
155 
156         author_experience_90_days[commit] = len(commits_by_author[commit.author])
157 
158         commits_by_author[commit.author].append(commit)
159 
160     global COMPONENTS
161     r = requests.get('https://index.taskcluster.net/v1/task/gecko.v2.mozilla-central.latest.source.source-bugzilla-info/artifacts/public/components.json')
162     r.raise_for_status()
163     COMPONENTS = r.json()
164 
165     print(f'Mining commits using {multiprocessing.cpu_count()} processes...')
166 
167     with concurrent.futures.ProcessPoolExecutor(initializer=_init, initargs=(repo_dir,)) as executor:
168         commits = executor.map(_transform, commits, chunksize=64)
169         commits = tqdm(commits, total=commits_num)
170         db.write(COMMITS_DB, commits)
171 
172 
173 def get_commit_map():
174     commit_map = {}
175 
176     for commit in get_commits():
177         bug_id = commit['bug_id']
178 
179         if not bug_id:
180             continue
181 
182         if bug_id not in commit_map:
183             commit_map[bug_id] = []
184 
185         commit_map[bug_id].append(commit)
186 
187     return commit_map
188 
189 
190 if __name__ == '__main__':
191     parser = argparse.ArgumentParser()
192     parser.add_argument('repository_dir', help='Path to the repository', action='store')
193     args = parser.parse_args()
194 
195     two_years_and_six_months_ago = datetime.utcnow() - relativedelta(years=2, months=6)
196 
197     download_commits(args.repository_dir, two_years_and_six_months_ago)
198
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/bugbug/repository.py b/bugbug/repository.py
--- a/bugbug/repository.py
+++ b/bugbug/repository.py
@@ -139,7 +139,9 @@
     global author_experience_90_days
     for commit in commits:
         author_experience[commit] = total_commits_by_author[commit.author]
-        total_commits_by_author[commit.author] += 1
+        # We don't want to consider backed out commits when calculating author/reviewer experience.
+        if not commit.ever_backedout:
+            total_commits_by_author[commit.author] += 1
 
         # Keep only the previous commits from a window of 90 days in the commits_by_author map.
         cut = None
@@ -155,7 +157,8 @@
 
         author_experience_90_days[commit] = len(commits_by_author[commit.author])
 
-        commits_by_author[commit.author].append(commit)
+        if not commit.ever_backedout:
+            commits_by_author[commit.author].append(commit)
 
     global COMPONENTS
     r = requests.get('https://index.taskcluster.net/v1/task/gecko.v2.mozilla-central.latest.source.source-bugzilla-info/artifacts/public/components.json')

{"golden_diff": "diff --git a/bugbug/repository.py b/bugbug/repository.py\n--- a/bugbug/repository.py\n+++ b/bugbug/repository.py\n@@ -139,7 +139,9 @@\n     global author_experience_90_days\n     for commit in commits:\n         author_experience[commit] = total_commits_by_author[commit.author]\n-        total_commits_by_author[commit.author] += 1\n+        # We don't want to consider backed out commits when calculating author/reviewer experience.\n+        if not commit.ever_backedout:\n+            total_commits_by_author[commit.author] += 1\n \n         # Keep only the previous commits from a window of 90 days in the commits_by_author map.\n         cut = None\n@@ -155,7 +157,8 @@\n \n         author_experience_90_days[commit] = len(commits_by_author[commit.author])\n \n-        commits_by_author[commit.author].append(commit)\n+        if not commit.ever_backedout:\n+            commits_by_author[commit.author].append(commit)\n \n     global COMPONENTS\n     r = requests.get('https://index.taskcluster.net/v1/task/gecko.v2.mozilla-central.latest.source.source-bugzilla-info/artifacts/public/components.json')\n", "issue": "Author and reviewer experience should ignore backouts\nAuthor and reviewer experience should not be increased for commits that are backed out.\n", "before_files": [{"content": "# -*- coding: utf-8 -*-\n# This Source Code Form is subject to the terms of the Mozilla Public\n# License, v. 2.0. If a copy of the MPL was not distributed with this file,\n# You can obtain one at http://mozilla.org/MPL/2.0/.\n\nimport argparse\nimport concurrent.futures\nimport multiprocessing\nimport os\nfrom collections import defaultdict\nfrom collections import namedtuple\nfrom datetime import datetime\n\nimport hglib\nimport requests\nfrom dateutil.relativedelta import relativedelta\nfrom parsepatch.patch import Patch\nfrom tqdm import tqdm\n\nfrom bugbug import db\n\nCOMMITS_DB = 'data/commits.json'\ndb.register(COMMITS_DB, 'https://www.dropbox.com/s/mz3afgncx0siijc/commits.json.xz?dl=1')\n\nCOMPONENTS = {}\n\nCommit = namedtuple('Commit', ['node', 'author', 'desc', 'date', 'bug', 'ever_backedout', 'author_email'])\n\nauthor_experience = {}\nauthor_experience_90_days = {}\n\n\ndef get_commits():\n    return db.read(COMMITS_DB)\n\n\ndef _init(repo_dir):\n    global HG\n    HG = hglib.open(repo_dir)\n\n\ndef _transform(commit):\n    desc = commit.desc.decode('utf-8')\n\n    obj = {\n        'author': commit.author.decode('utf-8'),\n        'desc': desc,\n        'date': str(commit.date),\n        'bug_id': commit.bug.decode('utf-8'),\n        'ever_backedout': commit.ever_backedout,\n        'added': 0,\n        'deleted': 0,\n        'files_modified_num': 0,\n        'types': set(),\n        'components': list(),\n        'author_experience': author_experience[commit],\n        'author_experience_90_days': author_experience_90_days[commit],\n        'author_email': commit.author_email.decode('utf-8'),\n    }\n\n    patch = HG.export(revs=[commit.node], git=True)\n    patch_data = Patch.parse_patch(patch.decode('utf-8', 'ignore'), skip_comments=False, add_lines_for_new=True)\n    for path, stats in patch_data.items():\n        if 'added' not in stats:\n            # Must be a binary file\n            obj['types'].add('binary')\n            continue\n\n        obj['added'] += len(stats['added']) + len(stats['touched'])\n        obj['deleted'] += len(stats['deleted']) + len(stats['touched'])\n        ext = os.path.splitext(path)[1]\n        if ext in ['.js', '.jsm']:\n            type_ = 'JavaScript'\n        elif ext in ['.c', '.cpp', '.h']:\n            type_ = 'C/C++'\n        elif ext in ['.java']:\n            type_ = 'Java'\n        elif ext in ['.py']:\n            type_ = 'Python'\n        else:\n            type_ = ext\n        obj['types'].add(type_)\n\n    obj['files_modified_num'] = len(patch_data)\n\n    # Covert to a list, as a set is not JSON-serializable.\n    obj['types'] = list(obj['types'])\n\n    obj['components'] = list(set('::'.join(COMPONENTS[fl]) for fl in patch_data.keys() if COMPONENTS.get(fl)))\n\n    return obj\n\n\ndef hg_log(hg, first_rev):\n    template = '{node}\\\\0{author}\\\\0{desc}\\\\0{date}\\\\0{bug}\\\\0{backedoutby}\\\\0{author|email}\\\\0'\n\n    args = hglib.util.cmdbuilder(b'log', template=template, no_merges=True, rev=f'{first_rev}:tip')\n    x = hg.rawcommand(args)\n    out = x.split(b'\\x00')[:-1]\n\n    revs = []\n    for rev in hglib.util.grouper(template.count('\\\\0'), out):\n        posixtime = float(rev[3].split(b'.', 1)[0])\n        dt = datetime.fromtimestamp(posixtime)\n\n        revs.append(Commit(\n            node=rev[0],\n            author=rev[1],\n            desc=rev[2],\n            date=dt,\n            bug=rev[4],\n            ever_backedout=(rev[5] != b''),\n            author_email=rev[6],\n        ))\n\n    return revs\n\n\ndef get_rev(hg, date):\n    return hg.log(date=date.strftime('%Y-%m-%d'), limit=1)[0].node.decode('utf-8')\n\n\ndef download_commits(repo_dir, date_from):\n    hg = hglib.open(repo_dir)\n\n    first_rev = get_rev(hg, date_from)\n\n    commits = hg_log(hg, first_rev)\n    commits_num = len(commits)\n\n    hg.close()\n\n    # Total previous number of commits by the author.\n    total_commits_by_author = defaultdict(int)\n    # Previous commits by the author, in a 90 days window.\n    commits_by_author = defaultdict(list)\n\n    global author_experience\n    global author_experience_90_days\n    for commit in commits:\n        author_experience[commit] = total_commits_by_author[commit.author]\n        total_commits_by_author[commit.author] += 1\n\n        # Keep only the previous commits from a window of 90 days in the commits_by_author map.\n        cut = None\n\n        for i, prev_commit in enumerate(commits_by_author[commit.author]):\n            if (commit.date - prev_commit.date).days <= 90:\n                break\n\n            cut = i\n\n        if cut is not None:\n            commits_by_author[commit.author] = commits_by_author[commit.author][cut + 1:]\n\n        author_experience_90_days[commit] = len(commits_by_author[commit.author])\n\n        commits_by_author[commit.author].append(commit)\n\n    global COMPONENTS\n    r = requests.get('https://index.taskcluster.net/v1/task/gecko.v2.mozilla-central.latest.source.source-bugzilla-info/artifacts/public/components.json')\n    r.raise_for_status()\n    COMPONENTS = r.json()\n\n    print(f'Mining commits using {multiprocessing.cpu_count()} processes...')\n\n    with concurrent.futures.ProcessPoolExecutor(initializer=_init, initargs=(repo_dir,)) as executor:\n        commits = executor.map(_transform, commits, chunksize=64)\n        commits = tqdm(commits, total=commits_num)\n        db.write(COMMITS_DB, commits)\n\n\ndef get_commit_map():\n    commit_map = {}\n\n    for commit in get_commits():\n        bug_id = commit['bug_id']\n\n        if not bug_id:\n            continue\n\n        if bug_id not in commit_map:\n            commit_map[bug_id] = []\n\n        commit_map[bug_id].append(commit)\n\n    return commit_map\n\n\nif __name__ == '__main__':\n    parser = argparse.ArgumentParser()\n    parser.add_argument('repository_dir', help='Path to the repository', action='store')\n    args = parser.parse_args()\n\n    two_years_and_six_months_ago = datetime.utcnow() - relativedelta(years=2, months=6)\n\n    download_commits(args.repository_dir, two_years_and_six_months_ago)\n", "path": "bugbug/repository.py"}], "after_files": [{"content": "# -*- coding: utf-8 -*-\n# This Source Code Form is subject to the terms of the Mozilla Public\n# License, v. 2.0. If a copy of the MPL was not distributed with this file,\n# You can obtain one at http://mozilla.org/MPL/2.0/.\n\nimport argparse\nimport concurrent.futures\nimport multiprocessing\nimport os\nfrom collections import defaultdict\nfrom collections import namedtuple\nfrom datetime import datetime\n\nimport hglib\nimport requests\nfrom dateutil.relativedelta import relativedelta\nfrom parsepatch.patch import Patch\nfrom tqdm import tqdm\n\nfrom bugbug import db\n\nCOMMITS_DB = 'data/commits.json'\ndb.register(COMMITS_DB, 'https://www.dropbox.com/s/mz3afgncx0siijc/commits.json.xz?dl=1')\n\nCOMPONENTS = {}\n\nCommit = namedtuple('Commit', ['node', 'author', 'desc', 'date', 'bug', 'ever_backedout', 'author_email'])\n\nauthor_experience = {}\nauthor_experience_90_days = {}\n\n\ndef get_commits():\n    return db.read(COMMITS_DB)\n\n\ndef _init(repo_dir):\n    global HG\n    HG = hglib.open(repo_dir)\n\n\ndef _transform(commit):\n    desc = commit.desc.decode('utf-8')\n\n    obj = {\n        'author': commit.author.decode('utf-8'),\n        'desc': desc,\n        'date': str(commit.date),\n        'bug_id': commit.bug.decode('utf-8'),\n        'ever_backedout': commit.ever_backedout,\n        'added': 0,\n        'deleted': 0,\n        'files_modified_num': 0,\n        'types': set(),\n        'components': list(),\n        'author_experience': author_experience[commit],\n        'author_experience_90_days': author_experience_90_days[commit],\n        'author_email': commit.author_email.decode('utf-8'),\n    }\n\n    patch = HG.export(revs=[commit.node], git=True)\n    patch_data = Patch.parse_patch(patch.decode('utf-8', 'ignore'), skip_comments=False, add_lines_for_new=True)\n    for path, stats in patch_data.items():\n        if 'added' not in stats:\n            # Must be a binary file\n            obj['types'].add('binary')\n            continue\n\n        obj['added'] += len(stats['added']) + len(stats['touched'])\n        obj['deleted'] += len(stats['deleted']) + len(stats['touched'])\n        ext = os.path.splitext(path)[1]\n        if ext in ['.js', '.jsm']:\n            type_ = 'JavaScript'\n        elif ext in ['.c', '.cpp', '.h']:\n            type_ = 'C/C++'\n        elif ext in ['.java']:\n            type_ = 'Java'\n        elif ext in ['.py']:\n            type_ = 'Python'\n        else:\n            type_ = ext\n        obj['types'].add(type_)\n\n    obj['files_modified_num'] = len(patch_data)\n\n    # Covert to a list, as a set is not JSON-serializable.\n    obj['types'] = list(obj['types'])\n\n    obj['components'] = list(set('::'.join(COMPONENTS[fl]) for fl in patch_data.keys() if COMPONENTS.get(fl)))\n\n    return obj\n\n\ndef hg_log(hg, first_rev):\n    template = '{node}\\\\0{author}\\\\0{desc}\\\\0{date}\\\\0{bug}\\\\0{backedoutby}\\\\0{author|email}\\\\0'\n\n    args = hglib.util.cmdbuilder(b'log', template=template, no_merges=True, rev=f'{first_rev}:tip')\n    x = hg.rawcommand(args)\n    out = x.split(b'\\x00')[:-1]\n\n    revs = []\n    for rev in hglib.util.grouper(template.count('\\\\0'), out):\n        posixtime = float(rev[3].split(b'.', 1)[0])\n        dt = datetime.fromtimestamp(posixtime)\n\n        revs.append(Commit(\n            node=rev[0],\n            author=rev[1],\n            desc=rev[2],\n            date=dt,\n            bug=rev[4],\n            ever_backedout=(rev[5] != b''),\n            author_email=rev[6],\n        ))\n\n    return revs\n\n\ndef get_rev(hg, date):\n    return hg.log(date=date.strftime('%Y-%m-%d'), limit=1)[0].node.decode('utf-8')\n\n\ndef download_commits(repo_dir, date_from):\n    hg = hglib.open(repo_dir)\n\n    first_rev = get_rev(hg, date_from)\n\n    commits = hg_log(hg, first_rev)\n    commits_num = len(commits)\n\n    hg.close()\n\n    # Total previous number of commits by the author.\n    total_commits_by_author = defaultdict(int)\n    # Previous commits by the author, in a 90 days window.\n    commits_by_author = defaultdict(list)\n\n    global author_experience\n    global author_experience_90_days\n    for commit in commits:\n        author_experience[commit] = total_commits_by_author[commit.author]\n        # We don't want to consider backed out commits when calculating author/reviewer experience.\n        if not commit.ever_backedout:\n            total_commits_by_author[commit.author] += 1\n\n        # Keep only the previous commits from a window of 90 days in the commits_by_author map.\n        cut = None\n\n        for i, prev_commit in enumerate(commits_by_author[commit.author]):\n            if (commit.date - prev_commit.date).days <= 90:\n                break\n\n            cut = i\n\n        if cut is not None:\n            commits_by_author[commit.author] = commits_by_author[commit.author][cut + 1:]\n\n        author_experience_90_days[commit] = len(commits_by_author[commit.author])\n\n        if not commit.ever_backedout:\n            commits_by_author[commit.author].append(commit)\n\n    global COMPONENTS\n    r = requests.get('https://index.taskcluster.net/v1/task/gecko.v2.mozilla-central.latest.source.source-bugzilla-info/artifacts/public/components.json')\n    r.raise_for_status()\n    COMPONENTS = r.json()\n\n    print(f'Mining commits using {multiprocessing.cpu_count()} processes...')\n\n    with concurrent.futures.ProcessPoolExecutor(initializer=_init, initargs=(repo_dir,)) as executor:\n        commits = executor.map(_transform, commits, chunksize=64)\n        commits = tqdm(commits, total=commits_num)\n        db.write(COMMITS_DB, commits)\n\n\ndef get_commit_map():\n    commit_map = {}\n\n    for commit in get_commits():\n        bug_id = commit['bug_id']\n\n        if not bug_id:\n            continue\n\n        if bug_id not in commit_map:\n            commit_map[bug_id] = []\n\n        commit_map[bug_id].append(commit)\n\n    return commit_map\n\n\nif __name__ == '__main__':\n    parser = argparse.ArgumentParser()\n    parser.add_argument('repository_dir', help='Path to the repository', action='store')\n    args = parser.parse_args()\n\n    two_years_and_six_months_ago = datetime.utcnow() - relativedelta(years=2, months=6)\n\n    download_commits(args.repository_dir, two_years_and_six_months_ago)\n", "path": "bugbug/repository.py"}]}