git: add some more tricks

some came from https://blog.gitbutler.com/git-tips-and-tricks/

.gitconfig

@@ -1,3 +1,4 @@
+# some tricks come from https://blog.gitbutler.com/git-tips-and-tricks/
 [user]
     name = Mathieu Maret
     email = mathieu.maret@gmail.com
@@ -11,6 +12,7 @@
 [alias]
     st = status
     ci = commit
+    cm = commit -m
     cia = commit --amend
     cias = commit --amend --no-edit
     co = checkout
@@ -71,12 +73,18 @@
     rebaseour = "rebase -Xours"
     rank = "shortlog -s -n --no-merges"
     root = rev-parse --show-toplevel
+    staash = stash --all
+# -w ignore whitespace. -C 3 time, detect lines moved or copied in any commit
+    blamef = blame -w -C -C -C
+# Show the log having the modificatoin for $1
+    search =!sh -c "git log -S $1 -p"
 [rebase]
     # when rebasing, update the other common branch too.
     # See https://andrewlock.net/working-with-stacked-branches-in-git-is-easier-with-update-refs/
     # Need git 2.38
     updateRefs = true
 [branch]
+	sort = -committerdate
     #New branch track remote
     #autosetupmerge = always
     # Rebase on git pull
@@ -157,3 +165,14 @@
 	ff = only
 [commit]
 	verbose = true
+[column]
+	ui = auto
+[gpg]
+	#Sign with ssh key (check signingkey)
+	format = ssh
+[maintenance]
+    # start maintenance on a repo with git maintenance start
+    #repo = /home/mmaret/Sources/matos
+[fetch]
+    #For large repo. Update the commit crash at each commit to have git log --graph super fast
+    #writeCommitGraph = true