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While git rev-parse can make this trivial, here's a naïve, generalised solution that could be adapted to a non-.git use case.

while test ! -e .git
  if ! cd .. ; or test "$PWD" = /
    break
  end
end

Here's the bash port

until [ -e .git ] ; do
  if ! cd .. || test "$PWD" = / ; then
    break
  fi
done

While git rev-parse can make this trivial, here's a naïve, generalised solution that could be adapted to a non-.git use case.

set start "$PWD"
while test ! -e .git
  if ! cd .. ; or test "$PWD" = /
    break
  end
end
if test ! -e .git
  cd "$start"
end

While git rev-parse can make this trivial, here's a naïve, generalised solution that could be adapted to a non-.git use case.

while test ! -e .git
  if ! cd .. ; or test "$PWD" = /
    break
  end
end

While git rev-parse can make this trivial, here's a naïve, generalised solution that could be adapted to a non-.git use case.

while test ! -e .git
  if ! cd .. ; or test "$PWD" = /
    break
  end
end

Here's the bash port

until [ -e .git ] ; do
  if ! cd .. || test "$PWD" = / ; then
    break
  fi
done

While git rev-parse can make this trivial, here's a naïve, generalised solution that could be adapted to 'non-git' use case.

while test ! -e .git
    if cd ..
        if test "$PWD" = /
            break
        end
    else
        break
    end
end

While git rev-parse can make this trivial, here's a naïve, generalised solution that could be adapted to a non-.git use case.

while test ! -e .git
  if ! cd .. ; or test "$PWD" = /
    break
  end
end