Hello.
Using 'git commit -S' (uppercase S) to gpg sign a commit does not work.
It seems that Git does not push the ID to GPG.
When I use 'git commit --gpg-sign=[KEY]', it works as expected.
What do I try to achieve: Automate adding 'Signed-off-by' and
automatically sign with the gpg key.
It should work from CMD Line as well from within an IDE.
I have edit the .gitconfig File accordingly and added
[user]
signingkey = NNN
[commit]
gpgsign = true
[alias]
amend = commit -S -s --amend
cm = commit -S -s
commit = commit -S -s
tag = tag -S -s
[gpg]
program = C:\\Program Files (x86)\\GnuPG\\bin\\gpg.exe
The Git User Name and eMail Address are the same which are set in the
used GPG Certificate.
Using '-S' from the Windows CMD Shell and Git Bash leads to an error.
Neither typing the command manually or using it through an alias works.
When I switch '-S' with '--gpg-sign=NNN' everything works as it should
from CMD Line - but not when I use for example SmartGit and enable 'Sign
all Commits'. After countless hours looking through the Web, I am not
out of Ideas.
Here is the Trace:
C:\Dev\GitRepos\Test>git cm
00:30:36.873133 exec-cmd.c:237 trace: resolved executable dir:
C:/Dev/Git/mingw64/bin
00:30:36.874133 git.c:744 trace: exec: git-cm
00:30:36.874133 run-command.c:667 trace: run_command: git-cm
00:30:36.876134 git.c:396 trace: alias expansion: cm => commit
-S -s
00:30:36.876134 git.c:805 trace: exec: git commit -S -s
00:30:36.876134 run-command.c:667 trace: run_command: git commit -S -s
00:30:36.883142 exec-cmd.c:237 trace: resolved executable dir:
C:/Dev/Git/mingw64/libexec/git-core
00:30:36.884143 git.c:455 trace: built-in: git commit -S -s
hint: Waiting for your editor to close the file... 00:30:36.889147
run-command.c:667 trace: run_command: GIT_INDEX_FILE=.git/index
'"C:/Dev/GitGuis/GitExtensions/GitExtensions.exe" fileeditor'
C:/Dev/GitRepos/Test/.git/COMMIT_EDITMSG
00:30:45.064284 run-command.c:667 trace: run_command: 'C:\Program
Files (x86)\GnuPG\bin\gpg.exe' -bsau ''
gpg: skipped "": Invalid user ID
gpg: signing failed: Invalid user ID
error: gpg failed to sign the data
fatal: failed to write commit object
Windows: Windows 10 Pro, 21H1, 19043.1100
Git Version: git version 2.32.0.windows.2
GPG Version: gpg (GnuPG) 2.2.28, libgcrypt 1.8.8, Copyright (C) 2021 g10
Code GmbH
Thank you in advance!
Oliver Niebuhr
