[Qemu-devel] [PATCH v2] scripts: add "git.orderfile" for ordering diff hunks by pathname patterns

[Laszlo Ersek <lersek@redhat.com>]

When passed to git-diff (and to every other git command producing diffs
and/or diffstats) with "-O" or "diff.orderFile", this list of patterns
will place the more declarative / abstract hunks first, while changes to
imperative code / details will be near the end of the patches. This saves
on scrolling / searching and makes for easier reviewing.

We intend to advise contributors in the Wiki to run

  git config diff.orderFile scripts/git.orderfile

once, as part of their initial setup, before formatting their first (or,
for repeat contributors, next) patches.

See the "-O" option and the "diff.orderFile" configuration variable in
git-diff(1) and git-config(1).

Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Cc: Fam Zheng <famz@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: John Snow <jsnow@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Cc: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
---

Notes:
    v2:
    - "Makefile" -> "Makefile*" [Gerd]
    - add leading comment [Gerd]
    - add "docs/*" (note, there are *.txt files outside of docs/, so keeping
      those too) [Max, Fam, Eric]

 scripts/git.orderfile | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 scripts/git.orderfile

diff --git a/scripts/git.orderfile b/scripts/git.orderfile
new file mode 100644
index 000000000000..3cab16e0505c
--- /dev/null
+++ b/scripts/git.orderfile
@@ -0,0 +1,20 @@
+# Apply this diff order to your git configuration with the command
+#
+#   git config diff.orderFile scripts/git.orderfile
+
+docs/*
+*.txt
+configure
+GNUmakefile
+makefile
+Makefile*
+*.mak
+qapi-schema*.json
+qapi/*.json
+include/qapi/visitor.h
+include/qapi/visitor-impl.h
+scripts/qapi.py
+scripts/*.py
+*.h
+qapi/qapi-visit-core.c
+*.c
-- 
2.9.2