From: Derrick Stolee <derrickstolee@github.com>
To: Junio C Hamano <gitster@pobox.com>,
Derrick Stolee via GitGitGadget <gitgitgadget@gmail.com>
Cc: git@vger.kernel.org, me@ttaylorr.com, newren@gmail.com,
avarab@gmail.com, mjcheetham@outlook.com, steadmon@google.com,
Glen Choo <chooglen@google.com>,
Jonathan Tan <jonathantanmy@google.com>,
Teng Long <dyroneteng@gmail.com>
Subject: Re: [PATCH v2 1/9] bundle-uri: short-circuit capability parsing
Date: Mon, 19 Sep 2022 13:55:32 -0400 [thread overview]
Message-ID: <c40247c6-d925-af1a-4ce2-6dcec7fb748d@github.com> (raw)
In-Reply-To: <xmqqleqslauq.fsf@gitster.g>
On 9/9/2022 1:24 PM, Junio C Hamano wrote:
> "Derrick Stolee via GitGitGadget" <gitgitgadget@gmail.com> writes:
>
>> From: Derrick Stolee <derrickstolee@github.com>
>>
>> When parsing the capability lines from the 'git remote-https' process,
>> we can stop reading the lines once we notice the 'get' capability.
>>
>> Reported-by: Teng Long <dyroneteng@gmail.com>
>> Signed-off-by: Derrick Stolee <derrickstolee@github.com>
>> ---
>> bundle-uri.c | 4 +++-
>> 1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/bundle-uri.c b/bundle-uri.c
>> index 4a8cc74ed05..7173ed065e9 100644
>> --- a/bundle-uri.c
>> +++ b/bundle-uri.c
>> @@ -56,8 +56,10 @@ static int download_https_uri_to_file(const char *file, const char *uri)
>> while (!strbuf_getline(&line, child_out)) {
>> if (!line.len)
>> break;
>> - if (!strcmp(line.buf, "get"))
>> + if (!strcmp(line.buf, "get")) {
>> found_get = 1;
>> + break;
>> + }
>> }
>
> Hmph, is this safe to do? Who is feeding child_out? Aren't they
> get upset if we do not slurp what they write to us? Are we
> expecting to read more from them after this part? Aren't we get
> upset if we leave some other stuff when we read from child_out after
> we saw "get"? If we respond to child_in without reading all from
> them, do we not get into a deadlock?
>
> Perhaps these are all silly questions, but the description above
> does not quite answer them.
In my testing, this has not been a problem, but that does not mean
that it is safe to do. I'll drop this patch in v3.
Thanks,
-Stolee
next prev parent reply other threads:[~2022-09-19 17:55 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-22 15:12 [PATCH 0/7] Bundle URIs III: Parse and download from bundle lists Derrick Stolee via GitGitGadget
2022-08-22 15:12 ` [PATCH 1/7] bundle-uri: create bundle_list struct and helpers Derrick Stolee via GitGitGadget
2022-08-22 17:57 ` Junio C Hamano
2022-08-22 15:12 ` [PATCH 2/7] bundle-uri: create base key-value pair parsing Derrick Stolee via GitGitGadget
2022-08-22 18:20 ` Junio C Hamano
2022-08-23 16:29 ` Derrick Stolee
2022-08-31 22:10 ` Jonathan Tan
2022-08-31 22:02 ` Glen Choo
2022-09-01 2:38 ` [PATCH 4/7] bundle-uri: unit test "key=value" parsing Teng Long
2022-08-22 15:12 ` [PATCH 3/7] bundle-uri: create "key=value" line parsing Ævar Arnfjörð Bjarmason via GitGitGadget
2022-08-22 19:17 ` Junio C Hamano
2022-08-23 16:31 ` Derrick Stolee
2022-09-02 23:41 ` Josh Steadmon
2022-08-22 15:12 ` [PATCH 4/7] bundle-uri: unit test "key=value" parsing Ævar Arnfjörð Bjarmason via GitGitGadget
2022-09-01 2:56 ` Teng Long
2022-08-22 15:12 ` [PATCH 5/7] bundle-uri: parse bundle list in config format Derrick Stolee via GitGitGadget
2022-08-22 19:25 ` Junio C Hamano
2022-08-23 16:43 ` Derrick Stolee
2022-08-31 22:18 ` Jonathan Tan
2022-09-01 8:05 ` Teng Long
2022-08-22 15:12 ` [PATCH 6/7] bundle-uri: limit recursion depth for bundle lists Derrick Stolee via GitGitGadget
2022-08-22 15:12 ` [PATCH 7/7] bundle-uri: fetch a list of bundles Derrick Stolee via GitGitGadget
2022-09-02 23:51 ` Josh Steadmon
2022-09-05 12:50 ` Teng Long
2022-09-08 17:10 ` Derrick Stolee
2022-09-09 14:33 ` [PATCH v2 0/9] Bundle URIs III: Parse and download from bundle lists Derrick Stolee via GitGitGadget
2022-09-09 14:33 ` [PATCH v2 1/9] bundle-uri: short-circuit capability parsing Derrick Stolee via GitGitGadget
2022-09-09 17:24 ` Junio C Hamano
2022-09-19 17:55 ` Derrick Stolee [this message]
2022-09-09 14:33 ` [PATCH v2 2/9] bundle-uri: use plain string in find_temp_filename() Derrick Stolee via GitGitGadget
2022-09-09 17:56 ` Junio C Hamano
2022-09-19 17:54 ` Derrick Stolee
2022-09-19 18:16 ` Junio C Hamano
2022-09-09 14:33 ` [PATCH v2 3/9] bundle-uri: create bundle_list struct and helpers Derrick Stolee via GitGitGadget
2022-09-09 14:33 ` [PATCH v2 4/9] bundle-uri: create base key-value pair parsing Derrick Stolee via GitGitGadget
2022-09-29 21:49 ` Jonathan Tan
2022-09-09 14:33 ` [PATCH v2 5/9] bundle-uri: create "key=value" line parsing Ævar Arnfjörð Bjarmason via GitGitGadget
2022-09-09 14:33 ` [PATCH v2 6/9] bundle-uri: unit test "key=value" parsing Ævar Arnfjörð Bjarmason via GitGitGadget
2022-09-09 14:33 ` [PATCH v2 7/9] bundle-uri: parse bundle list in config format Derrick Stolee via GitGitGadget
2022-09-09 14:33 ` [PATCH v2 8/9] bundle-uri: limit recursion depth for bundle lists Derrick Stolee via GitGitGadget
2022-09-09 14:33 ` [PATCH v2 9/9] bundle-uri: fetch a list of bundles Derrick Stolee via GitGitGadget
2022-09-29 21:58 ` Jonathan Tan
2022-09-30 12:49 ` Derrick Stolee
2022-09-26 13:19 ` [PATCH v2 0/9] Bundle URIs III: Parse and download from bundle lists Derrick Stolee
2022-09-26 19:10 ` Junio C Hamano
2022-09-29 22:00 ` Jonathan Tan
2022-09-30 13:21 ` Derrick Stolee
2022-10-04 12:34 ` [PATCH v3 " Derrick Stolee via GitGitGadget
2022-10-04 12:34 ` [PATCH v3 1/9] bundle-uri: use plain string in find_temp_filename() Derrick Stolee via GitGitGadget
2022-10-04 12:34 ` [PATCH v3 2/9] bundle-uri: create bundle_list struct and helpers Derrick Stolee via GitGitGadget
2022-10-04 12:34 ` [PATCH v3 3/9] bundle-uri: create base key-value pair parsing Derrick Stolee via GitGitGadget
2022-10-04 12:34 ` [PATCH v3 4/9] bundle-uri: create "key=value" line parsing Ævar Arnfjörð Bjarmason via GitGitGadget
2022-10-04 12:34 ` [PATCH v3 5/9] bundle-uri: unit test "key=value" parsing Ævar Arnfjörð Bjarmason via GitGitGadget
2022-10-04 12:34 ` [PATCH v3 6/9] bundle-uri: parse bundle list in config format Derrick Stolee via GitGitGadget
2022-10-04 12:34 ` [PATCH v3 7/9] bundle-uri: limit recursion depth for bundle lists Derrick Stolee via GitGitGadget
2022-10-04 12:34 ` [PATCH v3 8/9] bundle-uri: fetch a list of bundles Derrick Stolee via GitGitGadget
2022-10-04 21:44 ` Jonathan Tan
2022-10-07 13:29 ` Derrick Stolee
2022-10-04 12:34 ` [PATCH v3 9/9] bundle-uri: suppress stderr from remote-https Derrick Stolee via GitGitGadget
2022-10-10 16:04 ` [PATCH v4 00/11] Bundle URIs III: Parse and download from bundle lists Derrick Stolee via GitGitGadget
2022-10-10 16:04 ` [PATCH v4 01/11] bundle-uri: use plain string in find_temp_filename() Derrick Stolee via GitGitGadget
2022-10-10 16:04 ` [PATCH v4 02/11] bundle-uri: create bundle_list struct and helpers Derrick Stolee via GitGitGadget
2022-10-10 16:04 ` [PATCH v4 03/11] bundle-uri: create base key-value pair parsing Derrick Stolee via GitGitGadget
2022-10-10 16:04 ` [PATCH v4 04/11] bundle-uri: create "key=value" line parsing Ævar Arnfjörð Bjarmason via GitGitGadget
2022-10-10 16:04 ` [PATCH v4 05/11] bundle-uri: unit test "key=value" parsing Ævar Arnfjörð Bjarmason via GitGitGadget
2022-10-10 16:04 ` [PATCH v4 06/11] bundle-uri: parse bundle list in config format Derrick Stolee via GitGitGadget
2022-10-10 16:04 ` [PATCH v4 07/11] bundle-uri: limit recursion depth for bundle lists Derrick Stolee via GitGitGadget
2022-10-10 16:04 ` [PATCH v4 08/11] bundle: add flags to verify_bundle(), skip walk Derrick Stolee via GitGitGadget
2022-10-10 17:27 ` Junio C Hamano
2022-10-10 18:13 ` Derrick Stolee
2022-10-10 18:40 ` Junio C Hamano
2022-10-11 19:04 ` Derrick Stolee
2022-10-10 16:04 ` [PATCH v4 09/11] bundle-uri: fetch a list of bundles Derrick Stolee via GitGitGadget
2022-10-10 16:04 ` [PATCH v4 10/11] bundle-uri: quiet failed unbundlings Derrick Stolee via GitGitGadget
2022-10-10 16:04 ` [PATCH v4 11/11] bundle-uri: suppress stderr from remote-https Derrick Stolee via GitGitGadget
2022-10-12 12:52 ` [PATCH v5 00/12] Bundle URIs III: Parse and download from bundle lists Derrick Stolee via GitGitGadget
2022-10-12 12:52 ` [PATCH v5 01/12] bundle-uri: use plain string in find_temp_filename() Derrick Stolee via GitGitGadget
2022-10-12 12:52 ` [PATCH v5 02/12] bundle-uri: create bundle_list struct and helpers Derrick Stolee via GitGitGadget
2022-10-12 12:52 ` [PATCH v5 03/12] bundle-uri: create base key-value pair parsing Derrick Stolee via GitGitGadget
2022-10-12 12:52 ` [PATCH v5 04/12] bundle-uri: create "key=value" line parsing Ævar Arnfjörð Bjarmason via GitGitGadget
2022-10-12 12:52 ` [PATCH v5 05/12] bundle-uri: unit test "key=value" parsing Ævar Arnfjörð Bjarmason via GitGitGadget
2022-10-12 12:52 ` [PATCH v5 06/12] bundle-uri: parse bundle list in config format Derrick Stolee via GitGitGadget
2022-10-12 12:52 ` [PATCH v5 07/12] bundle-uri: limit recursion depth for bundle lists Derrick Stolee via GitGitGadget
2022-10-12 12:52 ` [PATCH v5 08/12] bundle: properly clear all revision flags Derrick Stolee via GitGitGadget
2022-10-12 16:17 ` Junio C Hamano
2022-10-12 12:52 ` [PATCH v5 09/12] bundle-uri: fetch a list of bundles Derrick Stolee via GitGitGadget
2022-10-26 19:06 ` Junio C Hamano
2022-10-12 12:52 ` [PATCH v5 10/12] bundle: add flags to verify_bundle() Derrick Stolee via GitGitGadget
2022-10-12 12:52 ` [PATCH v5 11/12] bundle-uri: quiet failed unbundlings Derrick Stolee via GitGitGadget
2022-10-12 16:32 ` Junio C Hamano
2022-10-12 12:52 ` [PATCH v5 12/12] bundle-uri: suppress stderr from remote-https Derrick Stolee via GitGitGadget
2022-10-26 18:54 ` Junio C Hamano
2022-10-26 14:34 ` [PATCH v5 00/12] Bundle URIs III: Parse and download from bundle lists Derrick Stolee
2022-10-26 16:06 ` Junio C Hamano
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