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Subject: bug#56030: The guix pull profile is too big
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Hi Guix!

I figured out this morning that my guix pull profile ("current") was more =
than 1GB=2E Looking at the closure, I found a few oddities=2E

There's gcc in there, which is the second most important contributor after=
 guix-*-modules (150 MB)=2E It's referenced by gcc-toolchain, itself only r=
eferenced by the guile-wrapper we build in (guix self)=2E Can we get rid of=
 it?

There are three versions of guile (50 MB each)=2E Can we settle for only o=
ne?

Then maybe less important because they're small:

There are two libffi, gzip, zlib, libgc, bash-minimal, xz, pkg-config and =
libunistring=2E

We have bash-minimal and bash-static=2E The latter is a bit bigger than th=
e former=2E Maybe we can keep only bash-minimal?
------OJMFAH88D55M4M081TLXKBTXP4E1B0
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<!DOCTYPE html><html><body>Hi Guix!<br><br>I figured out this morning that =
my guix pull profile ("current") was more than 1GB=2E Looking at the closur=
e, I found a few oddities=2E<br><br>There's gcc in there, which is the seco=
nd most important contributor after guix-*-modules (150 MB)=2E It's referen=
ced by gcc-toolchain, itself only referenced by the guile-wrapper we build =
in (guix self)=2E Can we get rid of it?<br><br>There are three versions of =
guile (50 MB each)=2E Can we settle for only one?<br><br>Then maybe less im=
portant because they're small:<br><br>There are two libffi, gzip, zlib, lib=
gc, bash-minimal, xz, pkg-config and libunistring=2E<br><br>We have bash-mi=
nimal and bash-static=2E The latter is a bit bigger than the former=2E Mayb=
e we can keep only bash-minimal?</body></html>
------OJMFAH88D55M4M081TLXKBTXP4E1B0--

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To: Julien Lepiller <julien@HIDDEN>
Subject: bug#56030: Acknowledgement (The guix pull profile is too big)
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Date: Fri, 17 Jun 2022 05:50:03 +0000

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Message sent to bug-guix@HIDDEN:

Subject: bug#56030: The guix pull profile is too big
Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
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From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
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Date: Sun, 26 Jun 2022 23:20:44 +0200
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 Lepiller's message of "Fri, 17 Jun 2022 07:48:28 +0200")
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Hi,

Julien Lepiller <julien@HIDDEN> skribis:

> I figured out this morning that my guix pull profile ("current") was more=
 than 1GB. Looking at the closure, I found a few oddities.

Specifically:

--8<---------------cut here---------------start------------->8---
$ guix describe
Generation 219  Jun 20 2022 09:40:20    (current)
  guix 73761d8
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: 73761d8049f483e6685c2c736872d0366e03238a
$ guix size $(readlink -f ~/.config/guix/current)
store item                                                       total    s=
elf
/gnu/store/rfkyfhdj3zq6lzlw7n0y5m36pdcfd2s7-guix-73761d804-modules   554.6 =
  220.8  27.5%
/gnu/store/249mczqf0jv55a7df9v3a3314mrwjg61-guix-packages-base     123.9   =
123.9  15.5%
/gnu/store/1jgcbdzx2ss6xv59w55g3kr3x4935dfb-guile-3.0.8            130.0   =
 53.0   6.6%
/gnu/store/cnfsv9ywaacyafkqdqsv2ry8f01yr7a9-guile-3.0.7            129.1   =
 52.0   6.5%
/gnu/store/jv3gkqapz7fxgpjzp7g6rlpfl3fb2pq9-guix-system             51.2   =
 51.2   6.4%
/gnu/store/5h2w4qi9hk1qzzgi1w83220ydslinr4s-glibc-2.33              38.3   =
 36.6   4.6%
/gnu/store/cwxfvi0890wwmhigk84iiq1dh64x0ac9-guix-packages-base-source    34=
.2    34.2   4.3%
/gnu/store/094bbaq6glba86h1d4cj16xhdi6fk2jl-gcc-10.3.0-lib          71.7   =
 33.4   4.2%
/gnu/store/3db8s5gn3srsdrzrdz4d0xpxpfhlb3h5-guix-extra              25.7   =
 25.7   3.2%
/gnu/store/bnsf9il448hl5xjavbhq3rcx355svz2v-glib-2.70.2             98.1   =
 15.3   1.9%
/gnu/store/mw3py6smb1pk8yx298hd9ivz9lzbksqi-glibc-utf8-locales-2.33    13.9=
    13.9   1.7%
/gnu/store/7nlzk7n90ib3llblxlpz725ym3k05gdj-util-linux-2.37.2-lib    80.7  =
   9.0   1.1%
/gnu/store/pyaxxsi4207awhpppqf1br6gl03k47pz-guix-package-cache       6.4   =
  6.4   0.8%
/gnu/store/cyx97f0bx4nki07l52jzw3lng0mzcdcv-guix-cli-core            6.4   =
  6.4   0.8%
/gnu/store/2rdmiv3k11qxz13fjq5bipljwjz0r6ws-guix-manual              6.0   =
  6.0   0.8%
/gnu/store/9rrnm5hdjw7cy96a2a9rfgh6y08wsbmf-ncurses-6.2.20210619    77.6   =
  5.9   0.7%
/gnu/store/zl9wf0zwq2ka9rpmayp53hnp2mn460xf-gnutls-3.7.2           143.4   =
  5.6   0.7%
/gnu/store/xgp23kc3v9w7l10grjwd0n1a74v3fhx3-openssl-1.1.1n          77.2   =
  5.5   0.7%
/gnu/store/il571kvl9fs08xag4hyg6x8hm57akscm-guile-git-0.5.2        100.5   =
  5.2   0.6%
/gnu/store/dyd5gaxzrngl6m9clniq5y1r7yl463h1-guix-system-tests        4.3   =
  4.3   0.5%
/gnu/store/fg76cjzdk413dfkx50fkcwd3wpbyfpi1-pcre2-10.37             84.6   =
  4.0   0.5%
/gnu/store/ffynx7n76vb5rby4b14yjcacqwq1w70h-mit-krb5-1.19.2         82.2   =
  3.9   0.5%
/gnu/store/v06gnr579r0jmr36aha3wkbd1y27ccg7-disarchive-0.4.0       139.1   =
  3.8   0.5%
/gnu/store/x1jd7pqfn9ilb6x97azcfq1fhjr63p0z-p11-kit-0.23.22         76.4   =
  3.4   0.4%
/gnu/store/xmzx5mzv4863yw9kmr2ykndgp37p8if0-sqlite-3.36.0           82.3   =
  3.2   0.4%
/gnu/store/x1x1sw727g7ls93av3i27mkd90s4wgd7-guix-home                3.2   =
  3.2   0.4%
/gnu/store/jkd4zlfq4rph31xazz132cf0skg6km00-guix-cli                 3.1   =
  3.1   0.4%
/gnu/store/v8raqm2shh9azkl71107p53j55hir306-libxcb-1.14             75.3   =
  3.0   0.4%
/gnu/store/ssfq7hv5bhas830cs29fk271brcn3vqi-guile-lib-0.2.7          2.9   =
  2.9   0.4%
/gnu/store/g2ajyl8xk9aarxrgjbng2hkj3qm2v0z2-tar-1.34                75.6   =
  2.9   0.4%
/gnu/store/fa43ijbrb96x08621qigxxiphp503lsi-libx11-1.7.3.1          78.2   =
  2.8   0.4%
/gnu/store/fwbiihd2sbhai63y1pvvdh0f2bakfzrf-gmp-6.2.1               74.4   =
  2.7   0.3%
/gnu/store/yqr33jyy81fdqmr8rd4gvbpisbad2w2l-guix-extra-source        2.5   =
  2.5   0.3%
/gnu/store/4rqq5sl8n85ywfwqdv0f1xjaw9vhgl8k-guix-system-source       2.4   =
  2.4   0.3%
/gnu/store/hkhbq2q1gfs970gsp2nhsmcqb4vmv2xr-libunistring-0.9.10     74.0   =
  2.3   0.3%
/gnu/store/f058zn04xla5jndkhxl0s20pbl61bckq-guile-bytestructures-1.0.10    =
 2.1     2.1   0.3%
/gnu/store/n0sd9hghs18pjsj72023r1spa9wxccc2-libevent-2.1.12         73.8   =
  2.1   0.3%
/gnu/store/m7vwbbsy3pkpi4rpdnvr8m4jc8y36ckn-libgit2-1.3.0           95.4   =
  2.0   0.2%
/gnu/store/xggzgd4xwsy5p02wdfngk67j7zpp91gb-guile-ssh-0.15.1       144.9   =
  1.9   0.2%
/gnu/store/03g49nffc73vrmx5180p4fhr3z4mfk0z-avahi-0.8              111.8   =
  1.7   0.2%
/gnu/store/r08q5kq8hy5621y3yk0c7zrxb9s514z4-guix-locale-guix         1.7   =
  1.7   0.2%
/gnu/store/720rj90bch716isd8z7lcwrnvz28ap4y-bash-static-5.1.8        1.7   =
  1.7   0.2%
/gnu/store/di5bqb45hi5lvp2q08hlxqjdcl9phjb1-pcre-8.45               73.4   =
  1.7   0.2%
/gnu/store/wcwls45278gzpjvwlvrrs1y7h30g44xh-readline-8.1.1          79.0   =
  1.4   0.2%
/gnu/store/3kl94m3ksm45a880b6lnn3kagk857lj9-libgcrypt-1.8.8         75.1   =
  1.4   0.2%
/gnu/store/60jl4xry9c93j9l0rr7nkvbw7dihjz4k-guile-gcrypt-0.3.0      76.5   =
  1.4   0.2%
/gnu/store/3x3dl71d4xm6y4hjwq110hmfyfx0xc6j-zstd-1.5.0-lib          72.9   =
  1.2   0.2%
/gnu/store/2b3blhwbag1ial0dhxw7wh4zjxl0cqpk-pkg-config-0.29.2       72.8   =
  1.1   0.1%
/gnu/store/yl859fgb86zgl0zsvbhxdpms945aazip-dbus-1.12.20            79.6   =
  1.1   0.1%
/gnu/store/aggsb6j1svxp70xlll4rqnx5f2pzz794-xz-5.2.5                73.7   =
  1.1   0.1%
/gnu/store/c8isj4jq6knv0icfgr43di6q3nvdzkx7-xz-5.2.5                73.7   =
  1.1   0.1%
[=E2=80=A6]
/gnu/store/vjf3hvajws01wmm5rwbkgw7z0jvl6v3h-guix-command           788.6   =
  0.0   0.0%
/gnu/store/hsynjf6csram52x9ampnb90ysdbipdk2-emacs-subdirs            0.0   =
  0.0   0.0%
/gnu/store/yyqqi3kp61r9sjqhhay85in0h5s8dzs8-guix-daemon            789.4   =
  0.0   0.0%
total: 802.0 MiB
--8<---------------cut here---------------end--------------->8---

50% goes into Guix modules.  There=E2=80=99s prolly room for improvement be=
cause
the =E2=80=98guix-COMMIT-modules=E2=80=99, which is #1, is actually the uni=
on of all the
other guix-*-modules.

> There's gcc in there, which is the second most important contributor afte=
r guix-*-modules (150 MB). It's referenced by gcc-toolchain, itself only re=
ferenced by the guile-wrapper we build in (guix self). Can we get rid of it?

I think you fixed that one in 319b8331b2357e12ec9edb9665513c32bef56622.
\o/

> There are three versions of guile (50 MB each). Can we settle for only on=
e?

I think that=E2=80=99s (@ (gnu packages commencement) guile-final), guile-3=
.0,
and guile-3.0-latest.  However I see only two of them here.

--8<---------------cut here---------------start------------->8---
$ guix graph --path -t references $(readlink -f ~/.config/guix/current) /gn=
u/store/1jgcbdzx2ss6xv59w55g3kr3x4935dfb-guile-3.0.8
/gnu/store/njzk97pz238fcjjpjk2vzdv5rgs6s54v-profile
/gnu/store/vp1m80lj2g6391xi95f056yra7xfb47i-guix-73761d804
/gnu/store/vjf3hvajws01wmm5rwbkgw7z0jvl6v3h-guix-command
/gnu/store/1jgcbdzx2ss6xv59w55g3kr3x4935dfb-guile-3.0.8
$ guix graph --path -t references $(readlink -f ~/.config/guix/current) /gn=
u/store/cnfsv9ywaacyafkqdqsv2ry8f01yr7a9-guile-3.0.7
/gnu/store/njzk97pz238fcjjpjk2vzdv5rgs6s54v-profile
/gnu/store/vp1m80lj2g6391xi95f056yra7xfb47i-guix-73761d804
/gnu/store/yyqqi3kp61r9sjqhhay85in0h5s8dzs8-guix-daemon
/gnu/store/cnfsv9ywaacyafkqdqsv2ry8f01yr7a9-guile-3.0.7
$ head -3 /gnu/store/yyqqi3kp61r9sjqhhay85in0h5s8dzs8-guix-daemon
#!/gnu/store/cnfsv9ywaacyafkqdqsv2ry8f01yr7a9-guile-3.0.7/bin/guile --no-au=
to-compile
!#
(begin (setenv "GUIX" "/gnu/store/vjf3hvajws01wmm5rwbkgw7z0jvl6v3h-guix-com=
mand") (unless (getenv "GUIX_STATE_DIRECTORY") (setenv "GUIX_STATE_DIRECTOR=
Y" "/var/guix")) (unless (getenv "GUIX_CONFIGURATION_DIRECTORY") (setenv "G=
UIX_CONFIGURATION_DIRECTORY" "/etc/guix")) (unless (getenv "NIX_STORE_DIR")=
 (setenv "NIX_STORE_DIR" "/gnu/store")) (apply execl "/gnu/store/jmqzsqpgnx=
rvzpdyx4dglvz9f40b81xm-guix-daemon-1.3.0-27.598f728/bin/guix-daemon" "guix-=
daemon" (cdr (command-line))))
--8<---------------cut here---------------end--------------->8---

Fixed this one in commit d418031a8cbdea4e2bc5c52ea1b29ad369579bae.

But then, =E2=80=98guile-3.0=E2=80=99 being the default, it=E2=80=99s used =
in a number of
places, like:

--8<---------------cut here---------------start------------->8---
$ guix graph -t references --path /gnu/store/6f58rzr1xi8h43l6l8gsm4paravqnn=
jz-guix-20220626.13 /gnu/store/cnfsv9ywaacyafkqdqsv2ry8f01yr7a9-guile-3.0.7
/gnu/store/6f58rzr1xi8h43l6l8gsm4paravqnnjz-guix-20220626.13
/gnu/store/00kkky8qxa73qv8g8y60y5gjz0l4hpmk-guix-command
/gnu/store/m3pdqa0crnvblllvkdjbda42k0rwxn9c-guix-module-union
/gnu/store/v06gnr579r0jmr36aha3wkbd1y27ccg7-disarchive-0.4.0
/gnu/store/cnfsv9ywaacyafkqdqsv2ry8f01yr7a9-guile-3.0.7
--8<---------------cut here---------------end--------------->8---

I can=E2=80=99t think of a good solution to this.

> Then maybe less important because they're small:
>
> There are two libffi, gzip, zlib, libgc, bash-minimal, xz, pkg-config and=
 libunistring.
>
> We have bash-minimal and bash-static. The latter is a bit bigger than the=
 former. Maybe we can keep only bash-minimal?

That=E2=80=99s probably due to the fact that there are multiple Guile varia=
nts;
annoying.

It=E2=80=99s worth keeping in mind that thanks to deduplication, this costs=
 much
less than it seems in terms of disk space, but it does cost in terms of
bandwidth usage.

Thanks,
Ludo=E2=80=99.

Message sent to bug-guix@HIDDEN:

Subject: bug#56030: The guix pull profile is too big
Resent-From: Maxime Devos <maximedevos@HIDDEN>
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From: Maxime Devos <maximedevos@HIDDEN>
To: Julien Lepiller <julien@HIDDEN>, 56030 <at> debbugs.gnu.org
Message-ID: <d644f79a-f0e3-6166-23cc-db867577f048@HIDDEN>
Subject: Re: bug#56030: The guix pull profile is too big
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-8">
  </head>
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    <p><br>
    </p>
    <div class=3D"moz-cite-prefix">On 17-06-2022 07:48, Julien Lepiller
      wrote:<br>
    </div>
    <blockquote type=3D"cite"
      cite=3D"mid:2C6CCC4B-BC71-4CA4-9B7B-086C14713DCD@HIDDEN">We
      have bash-minimal and bash-static. The latter is a bit bigger than
      the former. Maybe we can keep only bash-minimal?
    </blockquote>
    <p>bash-static is used by glibc (for the 'system' function), it's
      not something that can simply be replaced with bash-minimal (due
      to the cycle bash-minimal -&gt; glibc -&gt; bash-minimal that
      would result). I do have a proposal eliminating the bash-static
      reference though:</p>
    <ul>
      <li>replace the 'system' function from glibc by a variant that
        accepts the file name of the shell executable<br>
      </li>
      <li>Add a macro '#define system ...' that calls this variant and
        inserts __guix_bin_sh as the shell executable</li>
      <li>In the build system, look for bin/sh in the inputs.=C2=A0 If it=

        exists, add -D__guix_bin_sh=3D/gnu/store/.../bin/sh to<br>
        CFLAGS or such.<br>
      </li>
    </ul>
    <p>Greetings,<br>
      Maxime<br>
    </p>
  </body>
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On Thu Jul 21, 2022 at 3:52 PM BST, Maxime Devos wrote:
>   * Add a macro '#define system ...' that calls this variant and inserts
>     __guix_bin_sh as the shell executable

Would this not violate POSIX? Since, as far as I can see,
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/system.html>
does not give the implementation license to implement system(3) as a
macro. We could do

```
int system(const char *command) {
	return __guix_run_in_shell(command, __guix_bin_sh);
}
```

though.

    -- (

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And considering the definition of system(3) in glibc:

@ sysdeps/posix/system.c (took me way too long to find this; glibc's
source code is a maze ;))
```
#define SHELL_PATH	"/bin/sh"	/* Path of the shell.  */
#define SHELL_NAME	"sh"		/* Name to give it.  */
```

couldn't we just use `-DSHELL_PATH=3D/gnu/store/...`?

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