== Summary ==
`libcurl-minimal` and `curl-minimal` will be installed by default
instead of `libcurl` and `curl`.
The "minimal" variants provide only a subset of protocols (HTTP, HTTPS, FTP).
The full versions can be explicitly requested as `libcurl-full` and `curl-full`.
== Owner ==
* Name: [[User:Zbyszek| Zbigniew Jędrzejewski-Szmek]]
* Email: zbyszek at in.waw.pl
* Name: [[User:Kdudka| Kamil Dudka]]
* Email: kdudka at redhat.com
== Detailed Description ==
The `curl` package provides two sets of subpackages: `curl`+`libcurl`
`curl-minimal`+`libcurl-minimal` are compiled with various
semi-obsolete protocols and infrequently-used features disabled:
DICT, GOPHER, IMAP, LDAP, LDAPS, MQTT, NTLM, POP3, RTSP, SMB, SMTP,
SFTP, SCP, TELNET, TFTP, brotli compression, IDN2 names.
(Both variants support HTTP, HTTPS, and FTP.)
`curl-minimal` has `Provides:curl` and `libcurl-minimal` has `Provides:libcurl`.
This means that both sets can be used to satisfy a dependency on
`curl` or `libcurl`.
`curl` has the virtual `Provides:curl-full` and `libcurl` has the
The user or another package can explicitly pull in the full variants,
e.g. with `dnf install curl-full`
or `Requires: libcurl-full`.
With this change, `Suggests: libcurl-minimal` or `Suggests:
curl-minimal` will be added to a few packages
that already have a dependency on `libcurl` or `curl`.
Currently, doing this for `systemd` and `rpm` is planned.
Effectively, `dnf` will install the minimal variants, unless another
package has a stronger dependency on the full variants.
== Benefit to Fedora ==
There are two separate motivations for this.
Those infrequently used protocols are less tested than the common ones
and are a source of security bugs.
Most users are not using those protocols anyway, so disabling them
reduces the bug and attack surface.
(In fact, many applications already call `curl_easy_setopt(c,
CURLOPT_PROTOCOLS, …)` to internally
limit what protocols are supported. So even if `libcurl` is swapped
for `libcurl-minimal` for many
uses this will not be a difference.)
The packages for the minimal variants are smaller:
a trivial installation with `curl-minimal`+`libcurl+minimal` is 18 MB
download, 57 MB installed size, 50 packages;
the same with `curl-full` and `libcurl-full` is 21 MB download, 65
installed size, 62 packages.
Thus we save 8 MB, reducing the initial size by 12%.
== Scope ==
* Proposal owners:
Create pull requests to add `Suggests: curl-minimal` or `Suggests:
libcurl-minimal` as appropriate
to packages which already require `curl` or `libcurl`: `rpm` and `systemd`.
This means that any installation (which should be most of them) will
get the minimal variants.
* Other developers:
For packages that use the full variants: add `Recommends: curl-full`
or `Recommends: libcurl-full` or
`Requires: curl-full` or `Requires: libcurl-full` as appropriate.
The libcurl-devel RPM has a Requires: libcurl, which will
be satisfied by either full or minimal versions.
IOW, if an application has a test suite that relies on a
particular protocols not present in the minimal build, then
their BuildRequires will also need to explicitly ask for a