ok, i thought i'd share this stupid little episode of user error.
I wanted to enable git-rerere:
$ git-config --add rerere.enabled true
could not lock config file
#
# Hm, do remember this option incorrectly? And what lock file?
#
$ git-config --add rerere.enabled=1
key does not contain a section: --add
#
# What section? What key?
#
$ git-config --add rerere.enabled=true
key does not contain a section: --add
#
# Huh? Ok, lets try strace:
#
$ strace -f git-config --add rerere.enabled true 2>&1 | grep \\.lock
open(".git/config.lock", O_RDWR|O_CREAT|O_EXCL|O_LARGEFILE, 0666) = -1 ENOENT (No such file or directory)
#
# Ah, stupid me! I forgot to cd into the Git repository and it tries to
# access .git. And i wanted the --global option anyway. So the Git
# error messages led me on the completely wrong path.
#
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