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revision.py
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revision.py
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# Copyright (C) 2015-2022 The Software Heritage developers
# See the AUTHORS file at the top-level directory of this distribution
# License: GNU Affero General Public License version 3, or any later version
# See top-level LICENSE file for more information
from
typing
import
Optional
from
django.http
import
HttpResponse
from
rest_framework.request
import
Request
from
swh.web.api
import
utils
from
swh.web.api.apidoc
import
api_doc
,
format_docstring
from
swh.web.api.apiurls
import
api_route
from
swh.web.api.views.utils
import
api_lookup
from
swh.web.utils
import
archive
DOC_RETURN_REVISION
=
"""
:>json object author: information about the author of the revision
:>json object committer: information about the committer of the
revision
:>json string committer_date: RFC3339 representation of the commit date
:>json string date: RFC3339 representation of the revision date
:>json string directory: the unique identifier that revision points to
:>json string directory_url: link to
:http:get:`/api/1/directory/(sha1_git)/[(path)/]` to get
information about the directory associated to the revision
:>json string id: the revision unique identifier
:>json boolean merge: whether or not the revision corresponds to a
merge commit
:>json string message: the message associated to the revision
:>json array parents: the parents of the revision, i.e. the previous
revisions that head directly to it, each entry of that array
contains an unique parent revision identifier but also a link to
:http:get:`/api/1/revision/(sha1_git)/` to get more information
about it
:>json string type: the type of the revision
"""
DOC_RETURN_REVISION_ARRAY
=
DOC_RETURN_REVISION
.
replace
(
":>json"
,
":>jsonarr"
)
@api_route
(
r"/revision/(?P<sha1_git>[0-9a-f]+)/"
,
"api-1-revision"
,
checksum_args
=
[
"sha1_git"
]
)
@api_doc
(
"/revision/"
,
category
=
"Archive"
)
@format_docstring
(
return_revision
=
DOC_RETURN_REVISION
)
def
api_revision
(
request
:
Request
,
sha1_git
:
str
):
"""
.. http:get:: /api/1/revision/(sha1_git)/
Get information about a revision in the archive. Revisions are
identified by **sha1** checksums, compatible with Git commit
identifiers.
See :func:`swh.model.git_objects.revision_git_object` in our data model
module for details about how they are computed.
:param string sha1_git: hexadecimal representation of the revision
**sha1_git** identifier
{common_headers}
{return_revision}
:statuscode 200: no error
:statuscode 400: an invalid **sha1_git** value has been provided
:statuscode 404: requested revision can not be found in the archive
**Example:**
.. parsed-literal::
:swh_web_api:`revision/aafb16d69fd30ff58afdd69036a26047f3aebdc6/`
"""
return
api_lookup
(
archive
.
lookup_revision
,
sha1_git
,
notfound_msg
=
"Revision with sha1_git {} not found."
.
format
(
sha1_git
),
enrich_fn
=
utils
.
enrich_revision
,
request
=
request
,
)
@api_route
(
r"/revision/(?P<sha1_git>[0-9a-f]+)/raw/"
,
"api-1-revision-raw-message"
,
checksum_args
=
[
"sha1_git"
],
)
@api_doc
(
"/revision/raw/"
,
category
=
"Archive"
,
tags
=
[
"hidden"
])
def
api_revision_raw_message
(
request
:
Request
,
sha1_git
:
str
):
"""Return the raw data of the message of revision identified by sha1_git"""
raw
=
archive
.
lookup_revision_message
(
sha1_git
)
response
=
HttpResponse
(
raw
[
"message"
],
content_type
=
"application/octet-stream"
)
response
[
"Content-disposition"
]
=
"attachment;filename=rev_
%s
_raw"
%
sha1_git
return
response
@api_route
(
r"/revision/(?P<sha1_git>[0-9a-f]+)/directory/"
,
"api-1-revision-directory"
,
checksum_args
=
[
"sha1_git"
],
)
@api_route
(
r"/revision/(?P<sha1_git>[0-9a-f]+)/directory/(?P<dir_path>.+)/"
,
"api-1-revision-directory"
,
checksum_args
=
[
"sha1_git"
],
)
@api_doc
(
"/revision/directory/"
,
category
=
"Archive"
)
@format_docstring
()
def
api_revision_directory
(
request
:
Request
,
sha1_git
:
str
,
dir_path
:
Optional
[
str
]
=
None
):
"""
.. http:get:: /api/1/revision/(sha1_git)/directory/[(path)/]
Get information about directory (entry) objects associated to revisions.
Each revision is associated to a single "root" directory.
This endpoint behaves like :http:get:`/api/1/directory/(sha1_git)/[(path)/]`,
but operates on the root directory associated to a given revision.
:param string sha1_git: hexadecimal representation of the revision
**sha1_git** identifier
:param string path: optional parameter to get information about the
directory entry pointed by that relative path
{common_headers}
:>json array content: directory entries as returned by
:http:get:`/api/1/directory/(sha1_git)/[(path)/]`
:>json string path: path of directory from the revision root one
:>json string revision: the unique revision identifier
:>json string type: the type of the directory
:statuscode 200: no error
:statuscode 400: an invalid **sha1_git** value has been provided
:statuscode 404: requested revision can not be found in the archive
**Example:**
.. parsed-literal::
:swh_web_api:`revision/f1b94134a4b879bc55c3dacdb496690c8ebdc03f/directory/`
"""
rev_id
,
result
=
archive
.
lookup_directory_through_revision
(
{
"sha1_git"
:
sha1_git
},
dir_path
)
content
=
result
[
"content"
]
if
result
[
"type"
]
==
"dir"
:
# dir_entries
result
[
"content"
]
=
[
utils
.
enrich_directory_entry
(
entry
,
request
=
request
)
for
entry
in
content
]
elif
result
[
"type"
]
==
"file"
:
# content
result
[
"content"
]
=
utils
.
enrich_content
(
content
,
request
=
request
)
elif
result
[
"type"
]
==
"rev"
:
# revision
result
[
"content"
]
=
utils
.
enrich_revision
(
content
,
request
=
request
)
return
result
@api_route
(
r"/revision/(?P<sha1_git>[0-9a-f]+)/log/"
,
"api-1-revision-log"
,
checksum_args
=
[
"sha1_git"
],
)
@api_doc
(
"/revision/log/"
,
category
=
"Archive"
)
@format_docstring
(
return_revision_array
=
DOC_RETURN_REVISION_ARRAY
)
def
api_revision_log
(
request
:
Request
,
sha1_git
:
str
):
"""
.. http:get:: /api/1/revision/(sha1_git)/log/
Get a list of all revisions heading to a given one, in other words show
the commit log.
The revisions are returned in the breadth-first search order while
visiting the revision graph. The number of revisions to return is also
bounded by the **limit** query parameter.
.. warning::
To get the full BFS traversal of the revision graph when the
total number of revisions is greater than 1000, it is up to
the client to keep track of the multiple branches of history
when there's merge revisions in the returned objects.
In other words, identify all the continuation points that need
to be followed to get the full history through recursion.
:param string sha1_git: hexadecimal representation of the revision
**sha1_git** identifier
:query int limit: maximum number of revisions to return when performing
BFS traversal on the revision graph (default to 10, can not exceed 1000)
{common_headers}
{return_revision_array}
:statuscode 200: no error
:statuscode 400: an invalid **sha1_git** value has been provided
:statuscode 404: head revision can not be found in the archive
**Example:**
.. parsed-literal::
:swh_web_api:`revision/e1a315fa3fa734e2a6154ed7b5b9ae0eb8987aad/log/`
"""
limit
=
int
(
request
.
query_params
.
get
(
"limit"
,
"10"
))
limit
=
min
(
limit
,
1000
)
error_msg
=
"Revision with sha1_git
%s
not found."
%
sha1_git
revisions
=
api_lookup
(
archive
.
lookup_revision_log
,
sha1_git
,
limit
,
notfound_msg
=
error_msg
,
enrich_fn
=
utils
.
enrich_revision
,
request
=
request
,
)
return
{
"results"
:
revisions
}
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