Re: Git training wheels for the pimple faced maintainer

From: Linus Torvalds
Date: Fri Oct 20 2006 - 11:35:50 EST




On Fri, 20 Oct 2006, Linus Torvalds wrote:
>
> Use "git diff -M --stat master..for-linus" instead.

Actually, use "git diff -M --stat --summary master..for-linus".

The "--summary" thing generates an additional summary at the end of the
diffstat that lists deleted/created/moved/copied files, which is nice to
see. There's a difference between a

drivers/char/myserial.c | 50 ++++++++
1 file changed, 50 insertions(+), 0 deletions(-)

and

drivers/char/myserial.c | 50 ++++++++
1 file changed, 50 insertions(+), 0 deletions(-)
create mode 100644 drivers/char/myserial.c

because the latter tells that the new lines are actually in a new file,
while the previous says that you just added lines to an old one.

(Without "--summary", you can't tell the difference between these two
cases)

And the "-M" flag obviously means the difference between:

drivers/pci/hotplug/pci_hotplug.h | 236 ----------------------
include/linux/pci_hotplug.h | 236 ++++++++++++++++++++++
2 files changed, 236 insertions(+), 236 deletions(-)
delete mode 100644 drivers/pci/hotplug/pci_hotplug.h
create mode 100644 include/linux/pci_hotplug.h

and

.../pci/hotplug => include/linux}/pci_hotplug.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
rename drivers/pci/hotplug/pci_hotplug.h => include/linux/pci_hotplug.h (99%)

where the latter version clearly tells you a whole lot more about the
patch than the non-renaming one.

The reason rename detection isn't on by default is that non-git tools
don't understand the rename diffs. But if anybody sends me patches, please
feel free to use "git diff -M" to make them smaller and more readable in
the face of renames.

Linus
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