bug#28240: bad backtrace on “guix archive -x”

[zimoun]

Hi Ricardo,


On Sat, 26 Aug 2017 at 14:23, Ricardo Wurmus <rekado@elephly.net> wrote:

> wget -q -O - 
> https://mirror.hydra.gnu.org/guix/nar/gzip/ykpfif2wzabhnn0a88sw3f96paa33k2z-r-minimal-3.4.0
>  | guix archive -x /tmp/hydra
> Backtrace:

This example is not relevant anymore.  Instead,

--8<---------------cut here---------------start------------->8---
wget -O - 
https://ci.guix.gnu.org/nar/gzip/bhdixzi1c7x4jyh93zx5aqgwzzw3i182-r-minimal-4.0.4
 | guix archive -x /tmp/ci
--8<---------------cut here---------------end--------------->8---

still returns the ugly backtrace with…

[...]

> ERROR: Throw to key `decoding-error' with args `("scm_from_utf8_stringn" 
> "input locale conversion error" 0 #vu8(2 3 236 189 11 116 92 213 149 32 122 
> 37 99 35 93 140 100 136 1 135 132 230 32 4 37 9 85 233 227 15 178 141 140 74 
> 82 217 85 65 150 148 146 100 96 97 35 223 170 186 85 186 168 126 169 91 165 
> 143 177 19 51 134 4 45 183 50 76 122 186 87 207 116 214 123 204 91 157 76 122 
> 77 86 154 158 204 155 16 186 131 237 5 193 73 175 204 132 204 234 78 210 157 
> 188 78 79 186 211 145 67 62 116 39 33 36 233 224 183 247 62 159 251 169 42 27 
> 99 32 153 181 82 96 221 123 207 103 159 115 246 217 103 239 125 246 217 231 
> 156 171 53 254 203 91 75 65 163 148 156 179 22 204 96 31 124 55 136 240 14 
> 241 188 66 60 203 203 69 19 159 205 226 59 101 149 204 100 185 80 90 22 223 
> 235 197 211 204 151 41 172 30 156 188 145 35 56 235 196 119 194 202 123 227 
> 11 41 138 127 187 234 33 227 227 254 248 215 89 143 43 197 119 201 204 84 178 
> 70 73 211 101 249 75 102 178 82 54 18 89 83 243 252 154 196 51 89 200 151 161 
> 142 246 31 183 243 239 91 111 233 201 228 43 61 54 52 197 236 153 191 179 183 
> 127 231 252 246 5 99 199 64 118 222 40 38 142 36 151 147 169 35 15 221 153 
> 219 158 120 40 177 45 49 16 76 24 246 92 112 91 104 91 168 175 191 7 48 216 
> 131 223 250 173 108 106 206 204 102 2
> …
> [pages upon pages of numbers]
> …

…pages of numbers.


Moreover, the lzip returns something more comprehensive.

--8<---------------cut here---------------start------------->8---
$ wget -O - https://ci.guix.gnu.org/nar/lzip/…-r-minimal-4.0.4 | guix archive 
-x /tmp/ci
--2021-02-25 01:02:04--  https://ci.guix.gnu.org/nar/lzip/…-r-minimal-4.0.4
Resolving ci.guix.gnu.org (ci.guix.gnu.org)... 141.80.181.40
Connecting to ci.guix.gnu.org (ci.guix.gnu.org)|141.80.181.40|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 24343298 (23M) [application/octet-stream]
Saving to: ‘STDOUT’

-                         100%[=====================================>]  23.21M  
 486KB/s    in 56s     

2021-02-25 01:03:01 (424 KB/s) - written to stdout [24343298/24343298]

guix archive: error: corrupt input while restoring '/tmp/ci' from #<input: file 
0>
--8<---------------cut here---------------end--------------->8---


All the best,
simon