Blame progit/repo.py

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#-*- coding: utf-8 -*-
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"""
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 (c) 2014 - Copyright Red Hat Inc
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 Authors:
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   Pierre-Yves Chibon <pingou@pingoured.fr></pingou@pingoured.fr>
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"""
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import flask
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import os
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import tempfile
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from math import ceil
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import pygit2
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from sqlalchemy.exc import SQLAlchemyError
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from pygments import highlight
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from pygments.lexers import guess_lexer
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from pygments.lexers.text import DiffLexer
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from pygments.formatters import HtmlFormatter
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import progit.exceptions
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import progit.lib
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import progit.forms
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from progit import APP, SESSION, LOG, __get_file_in_tree, cla_required
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### Application
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def do_view_repo(repo, username=None):
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    """ Front page of a specific repo.
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    """
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    repo = progit.lib.get_project(SESSION, repo, user=username)
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    if repo is None:
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        flask.abort(404, 'Project not found')
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    reponame = os.path.join(APP.config['GIT_FOLDER'], repo.path)
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    if repo.is_fork:
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        reponame = os.path.join(APP.config['FORK_FOLDER'], repo.path)
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    repo_obj = pygit2.Repository(reponame)
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    cnt = 0
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    last_commits = []
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    tree = []
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    if not repo_obj.is_empty:
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        for commit in repo_obj.walk(
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                repo_obj.head.target, pygit2.GIT_SORT_TIME):
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            last_commits.append(commit)
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            cnt += 1
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            if cnt == 10:
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                break
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        tree = sorted(last_commits[0].tree, key=lambda x: x.filemode)
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    readme = None
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    for i in tree:
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        name, ext = os.path.splitext(i.name)
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        if name == 'README':
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            content = repo_obj[i.oid].data
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            readme = progit.doc_utils.convert_readme(content, ext)
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    diff_commits = []
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    if repo.is_fork:
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        parentname = os.path.join(
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            APP.config['GIT_FOLDER'], repo.parent.path)
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        orig_repo = pygit2.Repository(parentname)
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        if not repo_obj.is_empty and not orig_repo.is_empty:
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            orig_commit = orig_repo[orig_repo.head.target]
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            repo_commit = repo_obj[repo_obj.head.target]
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            diff = repo_obj.diff(
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                repo_obj.revparse_single(orig_commit.oid.hex),
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                repo_obj.revparse_single(repo_commit.oid.hex))
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            for commit in repo_obj.walk(
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                    repo_obj.head.target, pygit2.GIT_SORT_TIME):
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                if commit.oid.hex == orig_commit.oid.hex:
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                    break
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                diff_commits.append(commit.oid.hex)
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    return flask.render_template(
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        'repo_info.html',
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        select='overview',
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        repo=repo,
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        repo_obj=repo_obj,
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        username=username,
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        readme=readme,
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        branches=sorted(repo_obj.listall_branches()),
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        branchname='master',
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        last_commits=last_commits,
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        tree=tree,
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        diff_commits=diff_commits,
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    )
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def do_view_repo_branch(repo, branchname, username=None):
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    """ Displays the information about a specific branch.
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    """
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    repo = progit.lib.get_project(SESSION, repo, user=username)
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    if not repo:
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        flask.abort(404, 'Project not found')
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    reponame = os.path.join(APP.config['GIT_FOLDER'], repo.path)
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    if repo.is_fork:
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        reponame = os.path.join(APP.config['FORK_FOLDER'], repo.path)
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    repo_obj = pygit2.Repository(reponame)
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    if not branchname in repo_obj.listall_branches():
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        flask.abort(404, 'Branch no found')
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    branch = repo_obj.lookup_branch(branchname)
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    cnt = 0
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    last_commits = []
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    for commit in repo_obj.walk(branch.get_object().hex, pygit2.GIT_SORT_TIME):
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        last_commits.append(commit)
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        cnt += 1
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        if cnt == 10:
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            break
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    diff_commits = []
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    if repo.is_fork:
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        parentname = os.path.join(
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            APP.config['GIT_FOLDER'], repo.parent.path)
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        orig_repo = pygit2.Repository(parentname)
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        if not repo_obj.is_empty and not orig_repo.is_empty:
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            orig_commit = orig_repo[orig_repo.head.target]
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            repo_commit = repo_obj[branch.get_object().hex]
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            diff = repo_obj.diff(
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                repo_obj.revparse_single(orig_commit.oid.hex),
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                repo_obj.revparse_single(repo_commit.oid.hex))
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            for commit in repo_obj.walk(
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                    repo_obj.head.target, pygit2.GIT_SORT_TIME):
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                if commit.oid.hex == orig_commit.oid.hex:
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                    break
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                diff_commits.append(commit.oid.hex)
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    return flask.render_template(
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        'repo_info.html',
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        select='overview',
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        repo=repo,
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        username=username,
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        branches=sorted(repo_obj.listall_branches()),
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        branchname=branchname,
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        last_commits=last_commits,
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        tree=sorted(last_commits[0].tree, key=lambda x: x.filemode),
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        diff_commits=diff_commits,
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    )
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def do_view_log(repo, branchname=None, username=None):
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    """ Displays the logs of the specified repo.
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    """
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    repo = progit.lib.get_project(SESSION, repo, user=username)
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    if not repo:
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        flask.abort(404, 'Project not found')
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    reponame = os.path.join(APP.config['GIT_FOLDER'], repo.path)
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    if repo.is_fork:
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        reponame = os.path.join(APP.config['FORK_FOLDER'], repo.path)
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    repo_obj = pygit2.Repository(reponame)
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    if branchname and not branchname in repo_obj.listall_branches():
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        flask.abort(404, 'Branch no found')
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    if branchname:
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        branch = repo_obj.lookup_branch(branchname)
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    else:
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        branch = repo_obj.lookup_branch('master')
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    try:
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        page = int(flask.request.args.get('page', 1))
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    except ValueError:
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        page = 1
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    limit = APP.config['ITEM_PER_PAGE']
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    start = limit * (page - 1)
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    end = limit * page
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    n_commits = 0
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    last_commits = []
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    if branch:
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        for commit in repo_obj.walk(
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                branch.get_object().hex, pygit2.GIT_SORT_TIME):
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            if n_commits >= start and n_commits <= end:
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                last_commits.append(commit)
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            n_commits += 1
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    total_page = int(ceil(n_commits / float(limit)))
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    diff_commits = []
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    if repo.is_fork:
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        parentname = os.path.join(
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            APP.config['GIT_FOLDER'], repo.parent.path)
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        orig_repo = pygit2.Repository(parentname)
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        if not repo_obj.is_empty and not orig_repo.is_empty:
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            orig_commit = orig_repo[orig_repo.head.target]
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            repo_commit = repo_obj[branch.get_object().hex]
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            diff = repo_obj.diff(
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                repo_obj.revparse_single(orig_commit.oid.hex),
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                repo_obj.revparse_single(repo_commit.oid.hex))
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            for commit in repo_obj.walk(
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                    repo_obj.head.target, pygit2.GIT_SORT_TIME):
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                if commit.oid.hex == orig_commit.oid.hex:
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                    break
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                diff_commits.append(commit.oid.hex)
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    origin = 'view_log'
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    if username:
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        origin = 'view_fork_log'
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    return flask.render_template(
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        'repo_info.html',
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        select='logs',
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        origin=origin,
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        repo_obj=repo_obj,
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        repo=repo,
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        username=username,
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        branches=sorted(repo_obj.listall_branches()),
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        branchname=branchname,
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        last_commits=last_commits,
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        diff_commits=diff_commits,
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        page=page,
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        total_page=total_page,
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    )
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def do_view_file(repo, identifier, filename, username=None):
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    """ Displays the content of a file or a tree for the specified repo.
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    """
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    repo = progit.lib.get_project(SESSION, repo, user=username)
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    if not repo:
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        flask.abort(404, 'Project not found')
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    reponame = os.path.join(APP.config['GIT_FOLDER'], repo.path)
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    if repo.is_fork:
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        reponame = os.path.join(APP.config['FORK_FOLDER'], repo.path)
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    repo_obj = pygit2.Repository(reponame)
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    if identifier in repo_obj.listall_branches():
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        branchname = identifier
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        branch = repo_obj.lookup_branch(identifier)
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        commit = branch.get_object()
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    else:
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        try:
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            commit = repo_obj.get(identifier)
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            branchname = identifier
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        except ValueError:
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            # If it's not a commit id then it's part of the filename
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            commit = repo_obj[repo_obj.head.target]
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            branchname = 'master'
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    content = __get_file_in_tree(repo_obj, commit.tree, filename.split('/'))
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    if not content:
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        flask.abort(404, 'File not found')
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    content = repo_obj[content.oid]
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    if isinstance(content, pygit2.Blob):
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        content = highlight(
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            content.data,
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            guess_lexer(content.data),
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            HtmlFormatter(
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                noclasses=True,
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                style="tango",)
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        )
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        output_type = 'file'
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    else:
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        content = sorted(content, key=lambda x: x.filemode)
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        output_type = 'tree'
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    return flask.render_template(
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        'file.html',
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        select='tree',
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        repo=repo,
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        username=username,
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        branchname=branchname,
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        filename=filename,
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        content=content,
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        output_type=output_type,
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    )
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def do_view_commit(repo, commitid, username=None):
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    """ Render a commit in a repo
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    """
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    repo = progit.lib.get_project(SESSION, repo, user=username)
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    if not repo:
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        flask.abort(404, 'Project not found')
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    reponame = os.path.join(APP.config['GIT_FOLDER'], repo.path)
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    if repo.is_fork:
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        reponame = os.path.join(APP.config['FORK_FOLDER'], repo.path)
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    repo_obj = pygit2.Repository(reponame)
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    try:
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        commit = repo_obj.get(commitid)
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    except ValueError:
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        flask.abort(404, 'Commit not found')
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    if commit.parents:
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        diff = commit.tree.diff_to_tree()
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        parent = repo_obj.revparse_single('%s^' % commitid)
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        diff = repo_obj.diff(parent, commit)
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    else:
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        # First commit in the repo
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        diff = commit.tree.diff_to_tree(swap=True)
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    html_diff = highlight(
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        diff.patch,
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        DiffLexer(),
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        HtmlFormatter(
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            noclasses=True,
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            style="tango",)
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    )
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    return flask.render_template(
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        'commit.html',
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        select='logs',
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        repo=repo,
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        username=username,
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        commitid=commitid,
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        commit=commit,
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        diff=diff,
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        html_diff=html_diff,
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    )
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def do_view_tree(repo, identifier=None, username=None):
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    """ Render the tree of the repo
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    """
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    repo = progit.lib.get_project(SESSION, repo, user=username)
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    if repo is None:
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        flask.abort(404, 'Project not found')
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    reponame = os.path.join(APP.config['GIT_FOLDER'], repo.path)
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    if repo.is_fork:
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        reponame = os.path.join(APP.config['FORK_FOLDER'], repo.path)
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    repo_obj = pygit2.Repository(reponame)
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    branchname = None
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    content = None
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    output_type = None
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    if not repo_obj.is_empty:
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        if identifier in repo_obj.listall_branches():
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            branchname = identifier
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            branch = repo_obj.lookup_branch(identifier)
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            commit = branch.get_object()
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        else:
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            try:
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                commit = repo_obj.get(identifier)
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                branchname = identifier
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            except (ValueError, TypeError):
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                # If it's not a commit id then it's part of the filename
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                commit = repo_obj[repo_obj.head.target]
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                branchname = 'master'
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        content = sorted(commit.tree, key=lambda x: x.filemode)
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        output_type = 'tree'
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    return flask.render_template(
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        'file.html',
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        select='tree',
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        repo_obj=repo_obj,
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        repo=repo,
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        username=username,
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        branchname=branchname,
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        filename='',
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        content=content,
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        output_type=output_type,
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    )
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def do_view_forks(repo, username=None):
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    """ Return the list of forks of a project.
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    """
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    repo = progit.lib.get_project(SESSION, repo, user=username)
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    if not repo:
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        flask.abort(404, 'Project not found')
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    return flask.render_template(
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        'forks.html',
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        select='forks',
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        repo=repo,
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    )
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## URLs
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@APP.route('/<repo>')</repo>
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def view_repo(repo):
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    """ Front page of a specific repo.
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    """
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    return do_view_repo(repo=repo)
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@APP.route('/fork/<username>/<repo>')</repo></username>
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def view_fork_repo(username, repo):
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    """ Front page of a specific repo.
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    """
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    return do_view_repo(repo=repo, username=username)
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@APP.route('/<repo>/branch/<branchname>')</branchname></repo>
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def view_repo_branch(repo, branchname):
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    return do_view_repo_branch(repo, branchname)
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@APP.route('/fork/<username>/<repo>/branch/<branchname>')</branchname></repo></username>
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def view_fork_repo_branch(username, repo, branchname):
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    """ Displays the information about a specific branch.
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    """
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    return do_view_repo_branch(repo, branchname, username=username)
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@APP.route('/<repo>/log')</repo>
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@APP.route('/<repo>/log/<branchname>')</branchname></repo>
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def view_log(repo, branchname=None):
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    """ Displays the logs of the specified repo.
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    """
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    return do_view_log(repo, branchname)
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@APP.route('/fork/<username>/<repo>/log')</repo></username>
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@APP.route('/fork/<username>/<repo>/log/<branchname>')</branchname></repo></username>
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def view_fork_log(username, repo, branchname=None):
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    """ Displays the logs of the specified repo.
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    """
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    return do_view_log(repo, branchname, username=username)
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@APP.route('/<repo>/blob/<identifier>/<path:filename>')</path:filename></identifier></repo>
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@APP.route('/<repo>/blob/<identifier>/<path:filename>')</path:filename></identifier></repo>
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def view_file(repo, identifier, filename):
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    """ Displays the content of a file or a tree for the specified repo.
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    """
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    return do_view_file(repo, identifier, filename)
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@APP.route('/fork/<username>/<repo>/blob/<identifier>/<path:filename>')</path:filename></identifier></repo></username>
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@APP.route('/fork/<username>/<repo>/blob/<identifier>/<path:filename>')</path:filename></identifier></repo></username>
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def view_fork_file(username, repo, identifier, filename):
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    """ Displays the content of a file or a tree for the specified repo.
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    """
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    return do_view_file(repo, identifier, filename, username=username)
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@APP.route('/<repo>/<commitid>')</commitid></repo>
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def view_commit(repo, commitid):
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    """ Render a commit in a repo
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    """
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    return do_view_commit(repo, commitid)
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@APP.route('/fork/<username>/<repo>/<commitid>')</commitid></repo></username>
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def view_fork_commit(username, repo, commitid):
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    """ Render a commit in a repo
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    """
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    return do_view_commit(repo, commitid, username=username)
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@APP.route('/<repo>/tree/')</repo>
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@APP.route('/<repo>/tree/<identifier>')</identifier></repo>
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def view_tree(repo, identifier=None):
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    """ Render the tree of the repo
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    """
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    return do_view_tree(repo, identifier=identifier)
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@APP.route('/fork/<username>/<repo>/tree/')</repo></username>
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@APP.route('/fork/<username>/<repo>/tree/<identifier>')</identifier></repo></username>
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def view_fork_tree(username, repo, identifier=None):
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    """ Render the tree of the repo
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    """
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    return do_view_tree(repo, identifier=identifier, username=username)
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@APP.route('/<repo>/forks')</repo>
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def view_forks(repo):
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    """ Presents all the forks of the project.
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    """
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    return do_view_forks(repo)
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@APP.route('/fork/<username>/<repo>/forks')</repo></username>
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def fork_view_forks(username, repo):
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    """ Presents all the forks of the fork.
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    """
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    return do_view_forks(repo, username=username)