diff --git a/docs/uri-scheme-browse-origin.rst b/docs/uri-scheme-browse-origin.rst index 8ba31c4f..158ccc92 100644 --- a/docs/uri-scheme-browse-origin.rst +++ b/docs/uri-scheme-browse-origin.rst @@ -1,491 +1,491 @@ Origin ^^^^^^ This describes the URI scheme when one wants to browse the Software Heritage archive in the context of an origin (for instance, a repository crawled from GitHub or a Debian source package). All the views pointed by that scheme offer quick links to browse objects as found during the associated crawls performed by Software Heritage: * the root directory of the origin * the list of branches of the origin * the list of releases of the origin Origin metadata """"""""""""""" .. http:get:: /browse/origin/(origin_type)/url/(origin_url)/ HTML view that displays a SWH origin identified by its type and url. The view displays the origin metadata and contains links for browsing its directories and contents for each SWH visit. :param string origin_type: the type of the SWH origin (*git*, *svn*, *deb* ...) :param string origin_url: the url of the origin (e.g. https://github.com/user/repo) :statuscode 200: no error :statuscode 404: requested origin can not be found in the SWH archive **Examples:** .. parsed-literal:: :swh_web_browse:`origin/git/url/https://github.com/torvalds/linux/` :swh_web_browse:`origin/git/url/https://github.com/python/cpython/` :swh_web_browse:`origin/deb/url/deb://Debian-Security/packages/mediawiki/` :swh_web_browse:`origin/git/url/https://gitorious.org/qt/qtbase.git` Origin directory """""""""""""""" .. http:get:: /browse/origin/(origin_type)/url/(origin_url)/directory/[(path)/] HTML view for browsing the content of a directory reachable from the root directory - (including itself) associated to the latest visit of a SWH origin. + (including itself) associated to the latest full visit of a SWH origin. The content of the directory is first sorted in lexicographical order and the sub-directories are displayed before the regular files. The view enables to navigate from the requested directory to directories reachable from it in a recursive way but also up to the origin root directory. A breadcrumb located in the top part of the view allows to keep track of the paths navigated so far. The view also enables to easily switch between the origin branches and releases through a dropdown menu. The origin branch (default to master) from which to retrieve the directory content can also be specified by using the branch query parameter. :param string origin_type: the type of the SWH origin (*git*, *svn*, *deb* ...) :param string origin_url: the url of the origin (e.g. https://github.com/user/repo) :param string path: optional parameter used to specify the path of a directory reachable from the origin root one :query string branch: specify the origin branch name from which to retrieve the directory :query string release: specify the origin release name from which to retrieve the directory :query string revision: specify the origin revision, identified by the hexadecimal representation of its *sha1_git* value, from which to retrieve the directory :query int visit_id: specify a SWH visit id to retrieve the directory from instead of using the latest visit by default :statuscode 200: no error :statuscode 404: requested origin can not be found in the SWH archive or the provided path does not exist from the origin root directory **Examples:** .. parsed-literal:: :swh_web_browse:`origin/git/url/https://github.com/torvalds/linux/directory/` :swh_web_browse:`origin/git/url/https://github.com/torvalds/linux/directory/net/ethernet/` :swh_web_browse:`origin/git/url/https://github.com/python/cpython/directory/` :swh_web_browse:`origin/git/url/https://github.com/python/cpython/directory/Python/` :swh_web_browse:`origin/git/url/https://github.com/python/cpython/directory/?branch=refs/heads/2.7` .. http:get:: /browse/origin/(origin_type)/url/(origin_url)/visit/(timestamp)/directory/[(path)/] HTML view for browsing the content of a directory reachable from the root directory (including itself) associated to a visitof a SWH origin closest to a provided timestamp. The content of the directory is first sorted in lexicographical order and the sub-directories are displayed before the regular files. The view enables to navigate from the requested directory to directories reachable from it in a recursive way but also up to the origin root directory. A breadcrumb located in the top part of the view allows to keep track of the paths navigated so far. The view also enables to easily switch between the origin branches and releases through a dropdown menu. The origin branch (default to master) from which to retrieve the directory content can also be specified by using the branch query parameter. :param string origin_type: the type of the SWH origin (*git*, *svn*, *deb* ...) :param string origin_url: the url of the origin (e.g. https://github.com/user/repo) :param string timestamp: a date string (any format parsable by `dateutil.parser.parse`_) or Unix timestamp to parse in order to find the closest SWH visit. :param path: optional parameter used to specify the path of a directory reachable from the origin root one :type path: string :query string branch: specify the origin branch name from which to retrieve the directory :query string revision: specify the origin release name from which to retrieve the directory :query string revision: specify the origin revision, identified by the hexadecimal representation of its *sha1_git* value, from which to retrieve the directory :query int visit_id: specify a SWH visit id to retrieve the directory from instead of using the provided timestamp :statuscode 200: no error :statuscode 404: requested origin can not be found in the SWH archive, requested visit timestamp does not exist or the provided path does not exist from the origin root directory **Examples:** .. parsed-literal:: :swh_web_browse:`origin/git/url/https://github.com/torvalds/linux/visit/1493926809/directory/` :swh_web_browse:`origin/git/url/https://github.com/torvalds/linux/visit/2016-09-14T10:36:21/directory/net/ethernet/` :swh_web_browse:`origin/git/url/https://github.com/python/cpython/visit/1474620651/directory/` :swh_web_browse:`origin/git/url/https://github.com/python/cpython/visit/2017-05-05/directory/Python/` :swh_web_browse:`origin/git/url/https://github.com/python/cpython/visit/2015-08/directory/?branch=refs/heads/2.7` Origin content """""""""""""" .. http:get:: /browse/origin/(origin_type)/url/(origin_url)/content/(path)/ HTML view that produces a display of a SWH content - associated to the latest visit of a SWH origin. + associated to the latest full visit of a SWH origin. If the content to display is textual, it will be highlighted client-side if possible using highlightjs_. The procedure to perform that task is described in :http:get:`/browse/content/[(algo_hash):](hash)/`. It is also possible to highlight specific lines of a textual content (not in terms of syntax highlighting but to emphasize some relevant content part) by either: * clicking on line numbers (holding shift to highlight a lines range) * using an url fragment in the form '#Ln' or '#Lm-Ln' The view displays a breadcrumb on top of the rendered content in order to easily navigate up to the origin root directory. The view also enables to easily switch between the origin branches and releases through a dropdown menu. The origin branch (default to master) from which to retrieve the content can also be specified by using the branch query parameter. :param string origin_type: the type of the SWH origin (*git*, *svn*, *deb* ...) :param string origin_url: the url of the origin (e.g. https://github.com/user/repo) :param string path: path of a content reachable from the origin root directory :query string branch: specify the origin branch name from which to retrieve the content :query string release: specify the origin release name from which to retrieve the content :query string revision: specify the origin revision, identified by the hexadecimal representation of its *sha1_git* value, from which to retrieve the content :query int visit_id: specify a SWH visit id to retrieve the content from instead of using the latest visit by default :statuscode 200: no error :statuscode 404: requested origin can not be found in the SWH archive, or the provided content path does not exist from the origin root directory **Examples:** .. parsed-literal:: :swh_web_browse:`origin/git/url/https://github.com/git/git/content/git.c/` :swh_web_browse:`origin/git/url/https://github.com/git/git/content/git.c/` :swh_web_browse:`origin/git/url/https://github.com/mozilla/gecko-dev/content/js/src/json.cpp/` :swh_web_browse:`origin/git/url/https://github.com/git/git/content/git.c/?branch=refs/heads/next` .. http:get:: /browse/origin/(origin_type)/url/(origin_url)/visit/(timestamp)/content/(path)/ HTML view that produces a display of a SWH content associated to a visit of a SWH origin closest to a provided timestamp. If the content to display is textual, it will be highlighted client-side if possible using highlightjs_. The procedure to perform that task is described in :http:get:`/browse/content/[(algo_hash):](hash)/`. It is also possible to highlight specific lines of a textual content (not in terms of syntax highlighting but to emphasize some relevant content part) by either: * clicking on line numbers (holding shift to highlight a lines range) * using an url fragment in the form '#Ln' or '#Lm-Ln' The view displays a breadcrumb on top of the rendered content in order to easily navigate up to the origin root directory. The view also enables to easily switch between the origin branches and releases through a dropdown menu. The origin branch (default to master) from which to retrieve the content can also be specified by using the branch query parameter. :param string origin_type: the type of the SWH origin (*git*, *svn*, *deb* ...) :param string origin_url: the url of the origin (e.g. https://github.com/user/repo) :param string timestamp: a date string (any format parsable by `dateutil.parser.parse`_) or Unix timestamp to parse in order to find the closest SWH visit. :param string path: path of a content reachable from the origin root directory :query string branch: specify the origin branch name from which to retrieve the content :query string release: specify the origin release name from which to retrieve the content :query string revision: specify the origin revision, identified by the hexadecimal representation of its *sha1_git* value, from which to retrieve the content :query int visit_id: specify a SWH visit id to retrieve the content from instead of using the provided timestamp :statuscode 200: no error :statuscode 404: requested origin can not be found in the SWH archive, requested visit timestamp does not exist or the provided content path does not exist from the origin root directory **Examples:** .. parsed-literal:: :swh_web_browse:`origin/git/url/https://github.com/git/git/visit/1473933564/content/git.c/` :swh_web_browse:`origin/git/url/https://github.com/git/git/visit/2016-05-05T00:0:00+00:00/content/git.c/` :swh_web_browse:`origin/git/url/https://github.com/mozilla/gecko-dev/visit/1490126182/content/js/src/json.cpp/` :swh_web_browse:`origin/git/url/https://github.com/mozilla/gecko-dev/visit/2017-03-21/content/js/src/json.cpp/#L904-L931` :swh_web_browse:`origin/git/url/https://github.com/git/git/visit/2017-09-15/content/git.c/?branch=refs/heads/next` Origin history """""""""""""" .. http:get:: /browse/origin/(origin_type)/url/(origin_url)/log/ HTML view that produces a display of revisions history heading to the last revision found during the latest visit of a SWH origin. In other words, it shows the commit log associated to the latest - visit of a SWH origin. + full visit of a SWH origin. The following data are displayed for each log entry: * author of the revision * link to the revision metadata * message associated the revision * date of the revision * link to browse the associated source tree in the origin context N log entries are displayed per page (default is 20). In order to navigate in a large history, two buttons are present at the bottom of the view: * *Newer*: fetch and display if available the N more recent log entries than the ones currently displayed * *Older*: fetch and display if available the N older log entries than the ones currently displayed The view also enables to easily switch between the origin branches and releases through a dropdown menu. The origin branch (default to master) from which to retrieve the content can also be specified by using the branch query parameter. :param string origin_type: the type of the SWH origin (*git*, *svn*, *deb* ...) :param string origin_url: the url of the origin (e.g. https://github.com/user/repo) :query string revs_breadcrumb: used internally to store the navigation breadcrumbs (i.e. the list of descendant revisions visited so far). It must be a string in the form "(rev_1)[/(rev_2)/.../(rev_n)]" where rev_i corresponds to a revision sha1_git. :query int per_page: the number of log entries to display per page (default is 20, max is 50) :query string branch: specify the origin branch name from which to retrieve the commit log :query string release: specify the origin release name from which to retrieve the commit log :query string revision: specify the origin revision, identified by the hexadecimal representation of its *sha1_git* value, from which to retrieve the commit log :query int visit_id: specify a SWH visit id to retrieve the history log from instead of using the latest visit by default :statuscode 200: no error :statuscode 404: requested origin can not be found in the SWH archive **Examples:** .. parsed-literal:: :swh_web_browse:`origin/git/url/https://github.com/videolan/vlc/log/` :swh_web_browse:`origin/git/url/https://github.com/Kitware/CMake/log/` :swh_web_browse:`origin/git/url/https://github.com/Kitware/CMake/log/?branch=refs/heads/release` .. http:get:: /browse/origin/(origin_type)/url/(origin_url)/visit/(timestamp)/log/ HTML view that produces a display of revisions history heading to the last revision found during a visit of a SWH origin closest to the provided timestamp. In other words, it shows the commit log associated to a visit of a SWH origin closest to a provided timestamp. The following data are displayed for each log entry: * author of the revision * link to the revision metadata * message associated the revision * date of the revision * link to browse the associated source tree in the origin context N log entries are displayed per page (default is 20). In order to navigate in a large history, two buttons are present at the bottom of the view: * *Newer*: fetch and display if available the N more recent log entries than the ones currently displayed * *Older*: fetch and display if available the N older log entries than the ones currently displayed The view also enables to easily switch between the origin branches and releases through a dropdown menu. The origin branch (default to master) from which to retrieve the content can also be specified by using the branch query parameter. :param string origin_type: the type of the SWH origin (*git*, *svn*, *deb* ...) :param string origin_url: the url of the origin (e.g. https://github.com/user/repo) :param string timestamp: a date string (any format parsable by `dateutil.parser.parse`_) or Unix timestamp to parse in order to find the closest SWH visit. :query string revs_breadcrumb: used internally to store the navigation breadcrumbs (i.e. the list of descendant revisions visited so far). It must be a string in the form "(rev_1)[/(rev_2)/.../(rev_n)]" where rev_i corresponds to a revision sha1_git. :query int per_page: the number of log entries to display per page (default is 20, max is 50) :query string branch: specify the origin branch name from which to retrieve the commit log :query string release: specify the origin release name from which to retrieve the commit log :query string revision: specify the origin revision, identified by the hexadecimal representation of its *sha1_git* value, from which to retrieve the commit log :query int visit_id: specify a SWH visit id to retrieve the history log from instead of using the provided timestamp :statuscode 200: no error :statuscode 404: requested origin can not be found in the SWH archive **Examples:** .. parsed-literal:: :swh_web_browse:`origin/git/url/https://github.com/videolan/vlc/visit/1459651262/log/` :swh_web_browse:`origin/git/url/https://github.com/Kitware/CMake/visit/2016-04-01/log/` :swh_web_browse:`origin/git/url/https://github.com/Kitware/CMake/visit/1438116814/log/?branch=refs/heads/release` :swh_web_browse:`origin/git/url/https://github.com/Kitware/CMake/visit/2017-05-05T03:14:23/log/?branch=refs/heads/release` Origin branches """"""""""""""" .. http:get:: /browse/origin/(origin_type)/url/(origin_url)/branches/ HTML view that produces a display of the list of branches - found during the latest visit of a SWH origin. + found during the latest full visit of a SWH origin. The following data are displayed for each branch: * its name * a link to browse the associated directory * a link to browse the associated revision * last commit message * last commit date That list of branches is paginated, each page displaying a maximum of 20 branches. :param string origin_type: the type of the SWH origin (*git*, *svn*, *deb* ...) :param string origin_url: the url of the origin (e.g. https://github.com/user/repo) :statuscode 200: no error :statuscode 404: requested origin can not be found in the SWH archive **Examples:** .. parsed-literal:: :swh_web_browse:`origin/deb/url/deb://Debian/packages/linux/branches/` :swh_web_browse:`origin/git/url/https://github.com/webpack/webpack/branches/` .. http:get:: /browse/origin/(origin_type)/url/(origin_url)/visit/(timestamp)/branches/ HTML view that produces a display of the list of branches found during a visit of a SWH origin closest to the provided timestamp. The following data are displayed for each branch: * its name * a link to browse the associated directory * a link to browse the associated revision * last commit message * last commit date That list of branches is paginated, each page displaying a maximum of 20 branches. :param string origin_type: the type of the SWH origin (*git*, *svn*, *deb* ...) :param string origin_url: the url of the origin (e.g. https://github.com/user/repo) :param string timestamp: a date string (any format parsable by `dateutil.parser.parse`_) or Unix timestamp to parse in order to find the closest SWH visit. :statuscode 200: no error :statuscode 404: requested origin can not be found in the SWH archive **Examples:** .. parsed-literal:: :swh_web_browse:`origin/git/url/https://github.com/kripken/emscripten/visit/2017-05-05T12:02:03/branches/` :swh_web_browse:`origin/deb/url/deb://Debian/packages/apache2-mod-xforward/visit/2017-11-15T05:15:09/branches/` Origin releases """"""""""""""" .. http:get:: /browse/origin/(origin_type)/url/(origin_url)/releases/ HTML view that produces a display of the list of releases - found during the latest visit of a SWH origin. + found during the latest full visit of a SWH origin. The following data are displayed for each release: * its name * a link to browse the release details * its target type (revision, directory, content or release) * its associated message * its date That list of releases is paginated, each page displaying a maximum of 20 releases. :param string origin_type: the type of the SWH origin (*git*, *svn*, *deb* ...) :param string origin_url: the url of the origin (e.g. https://github.com/user/repo) :statuscode 200: no error :statuscode 404: requested origin can not be found in the SWH archive **Examples:** .. parsed-literal:: :swh_web_browse:`origin/git/url/https://github.com/git/git/releases/` :swh_web_browse:`origin/git/url/https://github.com/webpack/webpack/releases/` .. http:get:: /browse/origin/(origin_type)/url/(origin_url)/visit/(timestamp)/releases/ HTML view that produces a display of the list of releases - found during the latest visit of a SWH origin. + found during a visit of a SWH origin closest to the provided timestamp. The following data are displayed for each release: * its name * a link to browse the release details * its target type (revision, directory, content or release) * its associated message * its date That list of releases is paginated, each page displaying a maximum of 20 releases. :param string origin_type: the type of the SWH origin (*git*, *svn*, *deb* ...) :param string origin_url: the url of the origin (e.g. https://github.com/user/repo) :param string timestamp: a date string (any format parsable by `dateutil.parser.parse`_) or Unix timestamp to parse in order to find the closest SWH visit. :statuscode 200: no error :statuscode 404: requested origin can not be found in the SWH archive **Examples:** .. parsed-literal:: :swh_web_browse:`origin/git/url/https://github.com/torvalds/linux/visit/2017-11-21T19:37:42/releases/` :swh_web_browse:`origin/git/url/https://github.com/Kitware/CMake/visit/2016-09-23T14:06:35/releases/` .. _highlightjs: https://highlightjs.org/ .. _dateutil.parser.parse: http://dateutil.readthedocs.io/en/stable/parser.html diff --git a/swh/web/browse/utils.py b/swh/web/browse/utils.py index 7bf94bea..88bb2bca 100644 --- a/swh/web/browse/utils.py +++ b/swh/web/browse/utils.py @@ -1,838 +1,842 @@ # Copyright (C) 2017-2018 The Software Heritage developers # See the AUTHORS file at the top-level directory of this distribution # License: GNU General Public License version 3, or any later version # See top-level LICENSE file for more information import base64 import magic import math import stat from django.core.cache import cache from django.utils.safestring import mark_safe from importlib import reload from swh.web.common import highlightjs, service from swh.web.common.exc import NotFoundExc from swh.web.common.utils import ( reverse, format_utc_iso_date, parse_timestamp ) from swh.web.config import get_config def get_directory_entries(sha1_git): """Function that retrieves the content of a SWH directory from the SWH archive. The directories entries are first sorted in lexicographical order. Sub-directories and regular files are then extracted. Args: sha1_git: sha1_git identifier of the directory Returns: A tuple whose first member corresponds to the sub-directories list and second member the regular files list Raises: NotFoundExc if the directory is not found """ cache_entry_id = 'directory_entries_%s' % sha1_git cache_entry = cache.get(cache_entry_id) if cache_entry: return cache_entry entries = list(service.lookup_directory(sha1_git)) entries = sorted(entries, key=lambda e: e['name']) for entry in entries: entry['perms'] = stat.filemode(entry['perms']) dirs = [e for e in entries if e['type'] == 'dir'] files = [e for e in entries if e['type'] == 'file'] cache.set(cache_entry_id, (dirs, files)) return dirs, files def get_mimetype_and_encoding_for_content(content): """Function that returns the mime type and the encoding associated to a content buffer using the magic module under the hood. Args: content (bytes): a content buffer Returns: A tuple (mimetype, encoding), for instance ('text/plain', 'us-ascii'), associated to the provided content. """ while True: try: magic_result = magic.detect_from_content(content) mime_type = magic_result.mime_type encoding = magic_result.encoding break except Exception as exc: # workaround an issue with the magic module who can fail # if detect_from_content is called multiple times in # a short amount of time reload(magic) return mime_type, encoding # maximum authorized content size in bytes for HTML display # with code highlighting content_display_max_size = get_config()['content_display_max_size'] def request_content(query_string, max_size=content_display_max_size): """Function that retrieves a SWH content from the SWH archive. Raw bytes content is first retrieved, then the content mime type. If the mime type is not stored in the archive, it will be computed using Python magic module. Args: query_string: a string of the form "[ALGO_HASH:]HASH" where optional ALGO_HASH can be either *sha1*, *sha1_git*, *sha256*, or *blake2s256* (default to *sha1*) and HASH the hexadecimal representation of the hash value max_size: the maximum size for a content to retrieve (default to 1MB, no size limit if None) Returns: A tuple whose first member corresponds to the content raw bytes and second member the content mime type Raises: NotFoundExc if the content is not found """ content_data = service.lookup_content(query_string) filetype = service.lookup_content_filetype(query_string) language = service.lookup_content_language(query_string) license = service.lookup_content_license(query_string) mimetype = 'unknown' encoding = 'unknown' if filetype: mimetype = filetype['mimetype'] encoding = filetype['encoding'] if not max_size or content_data['length'] < max_size: content_raw = service.lookup_content_raw(query_string) content_data['raw_data'] = content_raw['data'] if not filetype: mimetype, encoding = \ get_mimetype_and_encoding_for_content(content_data['raw_data']) # encode textual content to utf-8 if needed if mimetype.startswith('text/'): # probably a malformed UTF-8 content, reencode it # by replacing invalid chars with a substitution one if encoding == 'unknown-8bit': content_data['raw_data'] = \ content_data['raw_data'].decode('utf-8', 'replace')\ .encode('utf-8') elif 'ascii' not in encoding and encoding not in ['utf-8', 'binary']: # noqa content_data['raw_data'] = \ content_data['raw_data'].decode(encoding, 'replace')\ .encode('utf-8') else: content_data['raw_data'] = None content_data['mimetype'] = mimetype content_data['encoding'] = encoding if language: content_data['language'] = language['lang'] else: content_data['language'] = 'not detected' if license: content_data['licenses'] = ', '.join(license['licenses']) else: content_data['licenses'] = 'not detected' return content_data _browsers_supported_image_mimes = set(['image/gif', 'image/png', 'image/jpeg', 'image/bmp', 'image/webp']) def prepare_content_for_display(content_data, mime_type, path): """Function that prepares a content for HTML display. The function tries to associate a programming language to a content in order to perform syntax highlighting client-side using highlightjs. The language is determined using either the content filename or its mime type. If the mime type corresponds to an image format supported by web browsers, the content will be encoded in base64 for displaying the image. Args: content_data (bytes): raw bytes of the content mime_type (string): mime type of the content path (string): path of the content including filename Returns: A dict containing the content bytes (possibly different from the one provided as parameter if it is an image) under the key 'content_data and the corresponding highlightjs language class under the key 'language'. """ language = highlightjs.get_hljs_language_from_filename(path) if not language: language = highlightjs.get_hljs_language_from_mime_type(mime_type) if not language: language = 'nohighlight-swh' elif mime_type.startswith('application/'): mime_type = mime_type.replace('application/', 'text/') if mime_type.startswith('image/'): if mime_type in _browsers_supported_image_mimes: content_data = base64.b64encode(content_data) else: content_data = None return {'content_data': content_data, 'language': language} def get_origin_visits(origin_info): """Function that returns the list of visits for a swh origin. That list is put in cache in order to speedup the navigation in the swh web browse ui. Args: origin_id (int): the id of the swh origin to fetch visits from Returns: A list of dict describing the origin visits:: [{'date': , 'origin': , 'status': <'full' | 'partial'>, 'visit': }, ... ] Raises: NotFoundExc if the origin is not found """ cache_entry_id = 'origin_%s_visits' % origin_info['id'] cache_entry = cache.get(cache_entry_id) if cache_entry: return cache_entry origin_visits = [] per_page = service.MAX_LIMIT last_visit = None while 1: visits = list(service.lookup_origin_visits(origin_info['id'], last_visit=last_visit, per_page=per_page)) origin_visits += visits if len(visits) < per_page: break else: if not last_visit: last_visit = per_page else: last_visit += per_page def _visit_sort_key(visit): ts = parse_timestamp(visit['date']).timestamp() return ts + (float(visit['visit']) / 10e3) for v in origin_visits: if 'metadata' in v: del v['metadata'] origin_visits = [dict(t) for t in set([tuple(d.items()) for d in origin_visits])] origin_visits = sorted(origin_visits, key=lambda v: _visit_sort_key(v)) cache.set(cache_entry_id, origin_visits) return origin_visits def get_origin_visit(origin_info, visit_ts=None, visit_id=None): """Function that returns information about a SWH visit for a given origin. The visit is retrieved from a provided timestamp. The closest visit from that timestamp is selected. Args: origin_info (dict): a dict filled with origin information (id, url, type) visit_ts (int or str): an ISO date string or Unix timestamp to parse Returns: A dict containing the visit info as described below:: {'origin': 2, 'date': '2017-10-08T11:54:25.582463+00:00', 'metadata': {}, 'visit': 25, 'status': 'full'} """ visits = get_origin_visits(origin_info) if not visits: raise NotFoundExc('No SWH visit associated to origin with' ' type %s and url %s!' % (origin_info['type'], origin_info['url'])) if visit_id: visit = [v for v in visits if v['visit'] == int(visit_id)] if len(visit) == 0: raise NotFoundExc( 'Visit with id %s for origin with type %s' ' and url %s not found!' % (visit_id, origin_info['type'], origin_info['url'])) return visit[0] if not visit_ts: + # returns the latest full visit when no timestamp is provided + for v in reversed(visits): + if v['status'] == 'full': + return v return visits[-1] parsed_visit_ts = math.floor(parse_timestamp(visit_ts).timestamp()) visit_idx = None for i, visit in enumerate(visits): ts = math.floor(parse_timestamp(visit['date']).timestamp()) if i == 0 and parsed_visit_ts <= ts: return visit elif i == len(visits) - 1: if parsed_visit_ts >= ts: return visit else: next_ts = math.floor( parse_timestamp(visits[i+1]['date']).timestamp()) if parsed_visit_ts >= ts and parsed_visit_ts < next_ts: if (parsed_visit_ts - ts) < (next_ts - parsed_visit_ts): visit_idx = i break else: visit_idx = i+1 break if visit_idx: visit = visits[visit_idx] while visit_idx < len(visits) - 1 and \ visit['date'] == visits[visit_idx+1]['date']: visit_idx = visit_idx + 1 visit = visits[visit_idx] return visit else: raise NotFoundExc( 'Visit with timestamp %s for origin with type %s and url %s not found!' % # noqa (visit_ts, origin_info['type'], origin_info['url'])) def get_origin_visit_snapshot(origin_info, visit_ts=None, visit_id=None): """Function that returns the lists of branches and releases associated to a swh origin for a given visit. The visit is expressed by a timestamp. In the latter case, the closest visit from the provided timestamp will be used. If no visit parameter is provided, it returns the list of branches found for the latest visit. That list is put in cache in order to speedup the navigation in the swh web browse ui. Args: origin_info (dict): a dict filled with origin information (id, url, type) visit_ts (int or str): an ISO date string or Unix timestamp to parse visit_id (int): optional visit id for desambiguation in case several visits have the same timestamp Returns: A tuple with two members. The first one is a list of dict describing the origin branches for the given visit:: [{'name': , 'revision': , 'directory': }, ... ] The second one is a list of dict describing the origin branches for the given visit. Raises: NotFoundExc if the origin or its visit are not found """ visit_info = get_origin_visit(origin_info, visit_ts, visit_id) visit = visit_info['visit'] cache_entry_id = 'origin_%s_visit_%s_snapshot' % (origin_info['id'], visit) cache_entry = cache.get(cache_entry_id) if cache_entry: return cache_entry['branches'], cache_entry['releases'] branches = [] releases = [] if visit_info['snapshot']: revision_ids = [] releases_ids = [] origin_visit_snapshot = service.lookup_snapshot(visit_info['snapshot']) snapshot_branches = origin_visit_snapshot['branches'] for key in sorted(snapshot_branches.keys()): if not snapshot_branches[key]: continue if snapshot_branches[key]['target_type'] == 'revision': branches.append({'name': key, 'revision': snapshot_branches[key]['target']}) revision_ids.append(snapshot_branches[key]['target']) elif snapshot_branches[key]['target_type'] == 'release': releases_ids.append(snapshot_branches[key]['target']) releases_info = service.lookup_release_multiple(releases_ids) for release in releases_info: releases.append({'name': release['name'], 'date': format_utc_iso_date(release['date']), 'id': release['id'], 'message': release['message'], 'target_type': release['target_type'], 'target': release['target']}) revision_ids.append(release['target']) revisions = service.lookup_revision_multiple(revision_ids) branches_to_remove = [] for idx, revision in enumerate(revisions): if idx < len(branches): if revision: branches[idx]['directory'] = revision['directory'] branches[idx]['date'] = format_utc_iso_date(revision['date']) # noqa branches[idx]['message'] = revision['message'] else: branches_to_remove.append(branches[idx]) else: rel_idx = idx - len(branches) if revision: releases[rel_idx]['directory'] = revision['directory'] for b in branches_to_remove: branches.remove(b) cache.set(cache_entry_id, {'branches': branches, 'releases': releases}) return branches, releases def gen_link(url, link_text, link_attrs={}): """ Utility function for generating an HTML link to insert in Django templates. Args: url (str): an url link_text (str): the text for the produced link link_attrs (dict): optional attributes (e.g. class) to add to the link Returns: An HTML link in the form 'link_text' """ attrs = ' ' for k, v in link_attrs.items(): attrs += '%s="%s" ' % (k, v) link = '%s' % (attrs, url, link_text) return mark_safe(link) def gen_person_link(person_id, person_name, link_attrs={}): """ Utility function for generating a link to a SWH person HTML view to insert in Django templates. Args: person_id (int): a SWH person id person_name (str): the associated person name link_attrs (dict): optional attributes (e.g. class) to add to the link Returns: An HTML link in the form 'person_name' """ person_url = reverse('browse-person', kwargs={'person_id': person_id}) return gen_link(person_url, person_name, link_attrs) def gen_revision_link(revision_id, shorten_id=False, origin_context=None, link_text=None, link_attrs={}): """ Utility function for generating a link to a SWH revision HTML view to insert in Django templates. Args: revision_id (str): a SWH revision id shorten_id (boolean): wheter to shorten the revision id to 7 characters for the link text origin_context (dict): if provided, generate origin-dependent browsing link (see :func:`swh.web.browse.utils.get_origin_context`) link_attrs (dict): optional attributes (e.g. class) to add to the link Returns: An HTML link in the form 'revision_id' """ query_params = None if origin_context: origin_info = origin_context['origin_info'] query_params = {'origin_type': origin_info['type'], 'origin_url': origin_info['url']} if 'timestamp' in origin_context['url_args']: query_params['timestamp'] = \ origin_context['url_args']['timestamp'] if 'visit_id' in origin_context['query_params']: query_params['visit_id'] = \ origin_context['query_params']['visit_id'] revision_url = reverse('browse-revision', kwargs={'sha1_git': revision_id}, query_params=query_params) if shorten_id: return gen_link(revision_url, revision_id[:7], link_attrs) else: if not link_text: link_text = revision_id return gen_link(revision_url, link_text, link_attrs) def gen_origin_link(origin_info, link_attrs={}): """ Utility function for generating a link to a SWH origin HTML view to insert in Django templates. Args: origin_info (dict): a dicted filled with origin information (id, type, url) link_attrs (dict): optional attributes (e.g. class) to add to the link Returns: An HTML link in the form 'Origin: origin_url' """ # noqa origin_browse_url = reverse('browse-origin', kwargs={'origin_type': origin_info['type'], 'origin_url': origin_info['url']}) return gen_link(origin_browse_url, 'Origin: ' + origin_info['url'], link_attrs) def gen_directory_link(sha1_git, link_text=None, link_attrs={}): """ Utility function for generating a link to a SWH directory HTML view to insert in Django templates. Args: sha1_git (str): directory identifier link_text (str): optional text for the generated link (the generated url will be used by default) link_attrs (dict): optional attributes (e.g. class) to add to the link Returns: An HTML link in the form 'link_text' """ directory_url = reverse('browse-directory', kwargs={'sha1_git': sha1_git}) if not link_text: link_text = directory_url return gen_link(directory_url, link_text, link_attrs) def gen_origin_directory_link(origin_context, revision_id=None, link_text=None, link_attrs={}): """ Utility function for generating a link to a SWH directory HTML view in the context of an origin to insert in Django templates. Args: origin_info (dict): the origin information (type and url) revision_id (str): optional revision identifier in order to use the associated directory link_text (str): optional text to use for the generated link link_attrs (dict): optional attributes (e.g. class) to add to the link Returns: An HTML link in the form 'origin_directory_view_url' """ origin_info = origin_context['origin_info'] url_args = {'origin_type': origin_info['type'], 'origin_url': origin_info['url']} query_params = {'revision': revision_id} if 'timestamp' in origin_context['url_args']: url_args['timestamp'] = \ origin_context['url_args']['timestamp'] if 'visit_id' in origin_context['query_params']: query_params['visit_id'] = \ origin_context['query_params']['visit_id'] directory_url = reverse('browse-origin-directory', kwargs=url_args, query_params=query_params) if not link_text: link_text = directory_url return gen_link(directory_url, link_text, link_attrs) def gen_content_link(sha1_git, link_text=None, link_attrs={}): """ Utility function for generating a link to a SWH content HTML view to insert in Django templates. Args: sha1_git (str): content identifier link_text (str): optional text for the generated link (the generated url will be used by default) link_attrs (dict): optional attributes (e.g. class) to add to the link Returns: An HTML link in the form 'link_text' """ content_url = reverse('browse-content', kwargs={'query_string': 'sha1_git:' + sha1_git}) if not link_text: link_text = content_url return gen_link(content_url, link_text, link_attrs) def get_revision_log_url(revision_id, origin_context=None): """ Utility function for getting the URL for a SWH revision log HTML view (possibly in the context of an origin). Args: revision_id (str): revision identifier the history heads to origin_context (dict): if provided, generate origin-dependent browsing link (see :func:`swh.web.browse.utils.get_origin_context`) Returns: The SWH revision log view URL """ if origin_context: origin_info = origin_context['origin_info'] url_args = {'origin_type': origin_info['type'], 'origin_url': origin_info['url']} query_params = {'revision': revision_id} if 'timestamp' in origin_context['url_args']: url_args['timestamp'] = \ origin_context['url_args']['timestamp'] if 'visit_id' in origin_context['query_params']: query_params['visit_id'] = \ origin_context['query_params']['visit_id'] revision_log_url = reverse('browse-origin-log', kwargs=url_args, query_params=query_params) else: revision_log_url = reverse('browse-revision-log', kwargs={'sha1_git': revision_id}) return revision_log_url def gen_revision_log_link(revision_id, origin_context=None, link_text=None, link_attrs={}): """ Utility function for generating a link to a SWH revision log HTML view (possibly in the context of an origin) to insert in Django templates. Args: revision_id (str): revision identifier the history heads to origin_context (dict): if provided, generate origin-dependent browsing link (see :func:`swh.web.browse.utils.get_origin_context`) link_text (str): optional text to use for the generated link link_attrs (dict): optional attributes (e.g. class) to add to the link Returns: An HTML link in the form 'link_text' """ revision_log_url = get_revision_log_url(revision_id, origin_context) if not link_text: link_text = revision_log_url return gen_link(revision_log_url, link_text, link_attrs) def _format_log_entries(revision_log, per_page, origin_context=None): revision_log_data = [] for i, log in enumerate(revision_log): if i == per_page: break revision_log_data.append( {'author': gen_person_link(log['author']['id'], log['author']['name']), 'revision': gen_revision_link(log['id'], True, origin_context), 'message': log['message'], 'date': format_utc_iso_date(log['date']), 'directory': log['directory']}) return revision_log_data def prepare_revision_log_for_display(revision_log, per_page, revs_breadcrumb, origin_context=None): """ Utility functions that process raw revision log data for HTML display. Its purpose is to: * add links to relevant SWH browse views * format date in human readable format * truncate the message log It also computes the data needed to generate the links for navigating back and forth in the history log. Args: revision_log (list): raw revision log as returned by the SWH web api per_page (int): number of log entries per page revs_breadcrumb (str): breadcrumbs of revisions navigated so far, in the form 'rev1[/rev2/../revN]'. Each revision corresponds to the first one displayed in the HTML view for history log. origin_context (boolean): wheter or not the revision log is browsed from an origin view. """ current_rev = revision_log[0]['id'] next_rev = None prev_rev = None next_revs_breadcrumb = None prev_revs_breadcrumb = None if len(revision_log) == per_page + 1: prev_rev = revision_log[-1]['id'] prev_rev_bc = current_rev if origin_context: prev_rev_bc = prev_rev if revs_breadcrumb: revs = revs_breadcrumb.split('/') next_rev = revs[-1] if len(revs) > 1: next_revs_breadcrumb = '/'.join(revs[:-1]) if len(revision_log) == per_page + 1: prev_revs_breadcrumb = revs_breadcrumb + '/' + prev_rev_bc else: prev_revs_breadcrumb = prev_rev_bc return {'revision_log_data': _format_log_entries(revision_log, per_page, origin_context), 'prev_rev': prev_rev, 'prev_revs_breadcrumb': prev_revs_breadcrumb, 'next_rev': next_rev, 'next_revs_breadcrumb': next_revs_breadcrumb} def get_origin_context(origin_type, origin_url, timestamp, visit_id=None): """ Utility function to compute relevant information when navigating the SWH archive in an origin context. Args: origin_type (str): the origin type (git, svn, deposit, ...) origin_url (str): the origin_url (e.g. https://github.com//) timestamp (str): a datetime string for retrieving the closest SWH visit of the origin visit_id (int): optional visit id for disambiguation in case of several visits with the same timestamp Returns: A dict with the following entries: * origin_info: dict containing origin information * visit_info: dict containing SWH visit information * branches: the list of branches for the origin found during the visit * releases: the list of releases for the origin found during the visit * origin_browse_url: the url to browse the origin * origin_branches_url: the url to browse the origin branches * origin_releases_url': the url to browse the origin releases * origin_visit_url: the url to browse the snapshot of the origin found during the visit * url_args: dict containg url arguments to use when browsing in the context of the origin and its visit """ # noqa origin_info = service.lookup_origin({'type': origin_type, 'url': origin_url}) visit_info = get_origin_visit(origin_info, timestamp, visit_id) visit_info['fmt_date'] = format_utc_iso_date(visit_info['date']) # provided timestamp is not necessarily equals to the one # of the retrieved visit, so get the exact one in order # use it in the urls generated below if timestamp: timestamp = visit_info['date'] branches, releases = \ get_origin_visit_snapshot(origin_info, timestamp, visit_id) releases = list(reversed(releases)) url_args = {'origin_type': origin_info['type'], 'origin_url': origin_info['url']} if timestamp: url_args['timestamp'] = format_utc_iso_date(timestamp, '%Y-%m-%dT%H:%M:%S') origin_browse_url = reverse('browse-origin', kwargs={'origin_type': origin_info['type'], 'origin_url': origin_info['url']}) origin_visit_url = reverse('browse-origin-directory', kwargs=url_args, query_params={'visit_id': visit_id}) origin_branches_url = reverse('browse-origin-branches', kwargs=url_args, query_params={'visit_id': visit_id}) origin_releases_url = reverse('browse-origin-releases', kwargs=url_args, query_params={'visit_id': visit_id}) return { 'origin_info': origin_info, 'visit_info': visit_info, 'branches': branches, 'releases': releases, 'branch': None, 'release': None, 'origin_browse_url': origin_browse_url, 'origin_branches_url': origin_branches_url, 'origin_releases_url': origin_releases_url, 'origin_visit_url': origin_visit_url, 'url_args': url_args, 'query_params': {'visit_id': visit_id} }