Re: Package inputs in manifests

[zimoun]

Hi,

On Mon, 18 Nov 2019 at 00:12, Bengt Richter <address@hidden> wrote:

> Can "collisions" be collisions even if the targets are bit-identical?

I think yes.

--8<---------------cut here---------------end--------------->8---
$ find -P /gnu/store  -maxdepth 1 -name "*gzip-1.9" -type d -print
/gnu/store/h0c398zan9ibhk4w0c944vp5pwgzkfpd-gzip-1.9
/gnu/store/q09sy224qnxrp982z4xfaxi19721mjx8-gzip-1.9
/gnu/store/1qgxnwxn7kqg6hmqc5hajc9g2z2bbaik-gzip-1.9
--8<---------------cut here---------------end--------------->8---

--8<---------------cut here---------------end--------------->8---
$ diff -r --no-dereference
/gnu/store/h0c398zan9ibhk4w0c944vp5pwgzkfpd-gzip-1.9
/gnu/store/q09sy224qnxrp982z4xfaxi19721mjx8-gzip-1.9
diff -r --no-dereference
/gnu/store/h0c398zan9ibhk4w0c944vp5pwgzkfpd-gzip-1.9/bin/gunzip
/gnu/store/q09sy224qnxrp982z4xfaxi19721mjx8-gzip-1.9/bin/gunzip
57c57
< exec /gnu/store/h0c398zan9ibhk4w0c944vp5pwgzkfpd-gzip-1.9/bin/gzip -d "$@"
---
> exec /gnu/store/q09sy224qnxrp982z4xfaxi19721mjx8-gzip-1.9/bin/gzip -d "$@"
diff -r --no-dereference
/gnu/store/h0c398zan9ibhk4w0c944vp5pwgzkfpd-gzip-1.9/bin/uncompress
/gnu/store/q09sy224qnxrp982z4xfaxi19721mjx8-gzip-1.9/bin/uncompress
57c57
< exec /gnu/store/h0c398zan9ibhk4w0c944vp5pwgzkfpd-gzip-1.9/bin/gzip -d "$@"
---
> exec /gnu/store/q09sy224qnxrp982z4xfaxi19721mjx8-gzip-1.9/bin/gzip -d "$@"

--8<---------------cut here---------------end--------------->8---

--8<---------------cut here---------------end--------------->8---
$ guix gc --requisites
/gnu/store/h0c398zan9ibhk4w0c944vp5pwgzkfpd-gzip-1.9 | sort
/gnu/store/02k245xy33cvcnr8vm3lagm9zmb1s2wa-grep-3.1
/gnu/store/4sqps8dczv3g7rwbdibfz6rf5jlk7w90-gcc-5.5.0-lib
/gnu/store/h0c398zan9ibhk4w0c944vp5pwgzkfpd-gzip-1.9
/gnu/store/h90vnqw0nwd0hhm1l5dgxsdrigddfmq4-glibc-2.28
/gnu/store/q19l04vd2za80mk1845pz7r8cz29qk43-bash-minimal-4.4.23
/gnu/store/zzakf905mzla4csi1dn9qpcwmgbxj29b-bash-static-4.4.23
--8<---------------cut here---------------end--------------->8---

--8<---------------cut here---------------end--------------->8---
$ guix gc --requisites
/gnu/store/q09sy224qnxrp982z4xfaxi19721mjx8-gzip-1.9 | sort
/gnu/store/02k245xy33cvcnr8vm3lagm9zmb1s2wa-grep-3.1
/gnu/store/4sqps8dczv3g7rwbdibfz6rf5jlk7w90-gcc-5.5.0-lib
/gnu/store/h90vnqw0nwd0hhm1l5dgxsdrigddfmq4-glibc-2.28
/gnu/store/q09sy224qnxrp982z4xfaxi19721mjx8-gzip-1.9
/gnu/store/q19l04vd2za80mk1845pz7r8cz29qk43-bash-minimal-4.4.23
/gnu/store/zzakf905mzla4csi1dn9qpcwmgbxj29b-bash-static-4.4.23
--8<---------------cut here---------------end--------------->8---


But the derivations differs.


--8<---------------cut here---------------end--------------->8---
$ guix gc --derivers /gnu/store/h0c398zan9ibhk4w0c944vp5pwgzkfpd-gzip-1.9 | sort
/gnu/store/3c9spvq9cgack8g0sznr6mv4b2vbag8v-gzip-1.9.drv
/gnu/store/534rm9gn29d7dd88wjkvmy9qf9w6j3b6-gzip-1.9.drv
/gnu/store/5gjql669pszp6wjg80wx0l7b6bkdirlj-gzip-1.9.drv
/gnu/store/5l2d67j1h0riax42a0kljnn6ghg4qm3s-gzip-1.9.drv
/gnu/store/xpv9bnrfvz5z6xwh5ypziz6waxzfa9jk-gzip-1.9.drv
--8<---------------cut here---------------end--------------->8---

--8<---------------cut here---------------end--------------->8---
$ guix gc --derivers /gnu/store/q09sy224qnxrp982z4xfaxi19721mjx8-gzip-1.9 | sort
/gnu/store/c0ngi4rm0avjlp3nb8j4yvmdlf598vr2-gzip-1.9.drv
/gnu/store/ib28wjw95572psh6z9nm9a6rf05ndcqw-gzip-1.9.drv
/gnu/store/jbnidakwvhr84rp8p8icdg1lnczjvi6w-gzip-1.9.drv
/gnu/store/rmqarqss73akz9yaad4a02zdvp62ijx2-gzip-1.9.drv
/gnu/store/xwrwib0yi7d2n1fp1zaxydw5kn704qjd-gzip-1.9.drv
--8<---------------cut here---------------end--------------->8---



I do not know, maybe it is about grafts.


All the best,
simon