gitignore: allow gitignore to ignore most dot file

Nowadays, most of the editor use files or directories begin with dot to
store some settings. So let git ignore these files and directories to
reduce potential mistakes.

Add dot match to ignore any editor file and there are two exceptions:
- .gitignore
- .clang-format

Signed-off-by: Inochi Amaoto <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>

1 files changed, 7 insertions, 1 deletions

diff --git a/.gitignore b/.gitignore
index c11afd38..fbba52e1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,10 @@
+# ignore anything begin with dot
+.*
+
+# exceptions we need even begin with dot
+!.clang-format
+!.gitignore
+
 # Object files
 *.o
 *.a
@@ -10,4 +17,3 @@ install/
 # Development friendly files
 tags
 cscope*
-*.swp