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gitmacosgnupg

Git unable to sign commits

I followed the instructions on Github to setup Git signing, but I get the following error when I try to sign and commit. I searched online but I fail to the reason why --help is being included in the command to sign. I am on a Mac (M2) and Git version is 2.40.1

╭─rishabh@WKW305277K ~/Development/src  ‹feature/list-by-currency*›
╰─➤  GIT_TRACE=1 git commit -m "Initial commit"

13:02:32.970213 git.c:439               trace: built-in: git commit -m 'Initial commit'
13:02:32.991133 run-command.c:655       trace: run_command: --help --status-fd=2 -bsau 6C3C23C559AA013D352F8790061E0F7BCE5EABB8
error: cannot run --help: No such file or directory
error: gpg failed to sign the data:
(no gpg output)
fatal: failed to write commit object

To help debug the issue here are the requested information:

  1. Content of ~/.gitconfig

    ╭─rishabh@WKW305277K ~
╰─➤  cat ~/.gitconfig

[filter "lfs"]
    required = true
    clean = git-lfs clean -- %f
    smudge = git-lfs smudge -- %f
    process = git-lfs filter-process
[user]
    name = Rishabh
    email = [email protected]
    signingkey = 6C3C23C559AA013D352F8790061E0F7BCE5EABB8
[init]
    defaultBranch = master
[pull]
    rebase = false
[commit]
    template = /Users/rishabh/.gitmessage
    gpgsign = true
[core]
    excludesfile = /Users/rishabh/.gitignore_global
[difftool "sourcetree"]
    cmd = opendiff \"$LOCAL\" \"$REMOTE\"
    path =
[mergetool "sourcetree"]
    cmd = /Applications/Sourcetree.app/Contents/Resources/opendiff-w.sh \"$LOCAL\" \"$REMOTE\" -ancestor \"$BASE\" -merge \"$MERGED\"
    trustExitCode = true
[gpg]
    program = /opt/homebrew/opt/[email protected]/bin/gpg

  2. Output of gpg --status-fd=2 -bsau <key>

    ╭─rishabh@WKW305277K ~
╰─➤  gpg --status-fd=2 -bsau 6C3C23C559AA013D352F8790061E0F7BCE5EABB8

[GNUPG:] KEY_CONSIDERED 6C3C23C559AA013D352F8790061E0F7BCE5EABB8 2
[GNUPG:] BEGIN_SIGNING H8
^C
gpg: signal Interrupt caught ... exiting
Solution

  • The solution required that I check the output of git config --global gpg.program and git config gpg.program on individual repositories, and then I noticed that on individual repositories I had the following:

    ╭─rishabh@WKW305277K ~/Development/src  ‹feature/list-by-currency*›
╰─➤  git config gpg.program
--help

    which I corrected by setting the value as below and it corrected my problem.

    git config gpg.program gpg