git_push throws authentication error

[psychelzh]

I am using rstudio-server under wsl. I can successfully git push my repository in the terminal, but when I use gert::git_push() in Rstudio, it will constantly throw the following error:

gert::git_push()
#> Error in libgit2::git_remote_push: Authentication failure

^{Created on 2021-11-16 by the reprex package (v2.0.1)}

Session info

sessioninfo::session_info()
#> Warning in system("timedatectl", intern = TRUE): running command 'timedatectl'
#> had status 1
#> ─ Session info  ──────────────────────────────────────────────────────────────
#>  hash: white medium square, woman: dark skin tone, red hair, superhero: medium-dark skin tone
#> 
#>  setting  value
#>  version  R version 4.1.2 (2021-11-01)
#>  os       Ubuntu 20.04.3 LTS
#>  system   x86_64, linux-gnu
#>  ui       X11
#>  language (EN)
#>  collate  C.UTF-8
#>  ctype    C.UTF-8
#>  tz       Asia/Shanghai
#>  date     2021-11-16
#>  pandoc   2.14.0.3 @ /usr/lib/rstudio-server/bin/pandoc/ (via rmarkdown)
#> 
#> ─ Packages ───────────────────────────────────────────────────────────────────
#>  package     * version date (UTC) lib source
#>  askpass       1.1     2019-01-13 [1] CRAN (R 4.1.1)
#>  backports     1.3.0   2021-10-27 [1] CRAN (R 4.1.1)
#>  cli           3.1.0   2021-10-27 [1] CRAN (R 4.1.1)
#>  crayon        1.4.2   2021-10-29 [1] CRAN (R 4.1.1)
#>  credentials   1.3.1   2021-07-25 [1] CRAN (R 4.1.1)
#>  digest        0.6.28  2021-09-23 [1] CRAN (R 4.1.1)
#>  ellipsis      0.3.2   2021-04-29 [1] CRAN (R 4.1.1)
#>  evaluate      0.14    2019-05-28 [1] CRAN (R 4.1.1)
#>  fansi         0.5.0   2021-05-25 [1] CRAN (R 4.1.1)
#>  fastmap       1.1.0   2021-01-25 [1] CRAN (R 4.1.1)
#>  fs            1.5.0   2020-07-31 [1] CRAN (R 4.1.1)
#>  gert          1.4.3   2021-11-10 [1] CRAN (R 4.1.2)
#>  glue          1.5.0   2021-11-07 [1] CRAN (R 4.1.2)
#>  highr         0.9     2021-04-16 [1] CRAN (R 4.1.1)
#>  htmltools     0.5.2   2021-08-25 [1] CRAN (R 4.1.1)
#>  knitr         1.36    2021-09-29 [1] CRAN (R 4.1.1)
#>  lifecycle     1.0.1   2021-09-24 [1] CRAN (R 4.1.1)
#>  magrittr      2.0.1   2020-11-17 [1] CRAN (R 4.1.1)
#>  openssl       1.4.5   2021-09-02 [1] CRAN (R 4.1.1)
#>  pillar        1.6.4   2021-10-18 [1] CRAN (R 4.1.1)
#>  pkgconfig     2.0.3   2019-09-22 [1] CRAN (R 4.1.1)
#>  purrr         0.3.4   2020-04-17 [1] CRAN (R 4.1.1)
#>  R.cache       0.15.0  2021-04-30 [1] CRAN (R 4.1.1)
#>  R.methodsS3   1.8.1   2020-08-26 [1] CRAN (R 4.1.1)
#>  R.oo          1.24.0  2020-08-26 [1] CRAN (R 4.1.1)
#>  R.utils       2.11.0  2021-09-26 [1] CRAN (R 4.1.1)
#>  reprex        2.0.1   2021-08-05 [1] CRAN (R 4.1.1)
#>  rlang         0.4.12  2021-10-18 [1] CRAN (R 4.1.1)
#>  rmarkdown     2.11    2021-09-14 [1] CRAN (R 4.1.1)
#>  rstudioapi    0.13    2020-11-12 [1] CRAN (R 4.1.1)
#>  sessioninfo   1.2.1   2021-11-02 [1] CRAN (R 4.1.1)
#>  stringi       1.7.5   2021-10-04 [1] CRAN (R 4.1.1)
#>  stringr       1.4.0   2019-02-10 [1] CRAN (R 4.1.1)
#>  styler        1.6.2   2021-09-23 [1] CRAN (R 4.1.1)
#>  sys           3.4     2020-07-23 [1] CRAN (R 4.1.1)
#>  tibble        3.1.6   2021-11-07 [1] CRAN (R 4.1.2)
#>  utf8          1.2.2   2021-07-24 [1] CRAN (R 4.1.1)
#>  vctrs         0.3.8   2021-04-29 [1] CRAN (R 4.1.1)
#>  withr         2.4.2   2021-04-18 [1] CRAN (R 4.1.1)
#>  xfun          0.28    2021-11-04 [1] CRAN (R 4.1.1)
#>  yaml          2.2.1   2020-02-01 [1] CRAN (R 4.1.1)
#> 
#>  [1] /home/liang/R/x86_64-pc-linux-gnu-library/4.1
#>  [2] /usr/local/lib/R/site-library
#>  [3] /usr/lib/R/site-library
#>  [4] /usr/lib/R/library
#> 
#> ──────────────────────────────────────────────────────────────────────────────

More message is like this:

#> Unable to find ssh-agent (SSH_AUTH_SOCK undefined)
#> Trying to authenticate 'git' using provided ssh-key...
#> Failed to authenticate over SSH. You either need to provide a key or setup ssh-agent

[MeterDS2021]

I am having the same issue. Working on RStudio Workbench, I can use any git command from the terminal, but not using gert:: in RStudio:

> gert::git_push()
Unable to find ssh-agent (SSH_AUTH_SOCK undefined)
Trying to authenticate 'git' using provided ssh-key...
Failed to authenticate over SSH. You either need to provide a key or setup ssh-agent
Error in libgit2::git_remote_push : Authentication failure

Even if I point gert::git_push() to my ssh-key using the ssh_key argument it does not work. Any ideas?