chore: add gitmainbranch

gitconfig

@@ -30,12 +30,12 @@
 	cpls = !git cp $(git ls)
 	d = diff
 	dls = !git diff $(git branch | fzf)
-	dom = diff origin/master...
+	dom = !git diff origin/$(git mainbranch)...
 	drb = !git diff $(git rb)
 	ds = diff --staged
 	f = fetch
 	fc = commit --allow-empty -m 'Initial commit'
-	fixom = !sh -c 'git fetch && git rebase -i --autosquash origin/master'
+	fixom = !sh -c 'git fetch && git rebase -i --autosquash origin/$(git mainbranch)'
 	fixup = rebase -i --autosquash
 	l = log
 	l1 = log --oneline
@@ -44,6 +44,7 @@
 	lm = logme
 	logme = !sh -c 'git log --author=\"$(git config --get user.name)\"'
 	ls = !git branch --format '%(refname:short)' | fzf
+	mainbranch = !gitmainbranch
 	mls = !git merge $(git ls)
 	mr = !git merge $(git rb)
 	mrb = mr
@@ -57,7 +58,7 @@
 	plr = pull --rebase
 	ph = push -u origin HEAD
 	pr = dom
-	prs = diff --stat origin/master
+	prs = !git diff --stat origin/$(git mainbranch)
 	ra = rebase --abort
 	rb = !git rev-parse --abbrev-ref --symbolic-full-name @{u}
 	rc = rebase --continue
@@ -66,7 +67,7 @@
 	rh = reset --hard
 	ri = rebase -i --autosquash
 	rils = !git rebase -i --autosquash $(git branch | fzf)
-	rom = !sh -c 'git fetch && git rebase origin/master'
+	rom = !sh -c 'git fetch && git rebase origin/$(git mainbranch)'
 	rr = !sh -c 'git fetch && git reset --hard $(git rb)'
 	rv = revert
 	rvh = revert HEAD

script/gitmainbranch

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+#
+# Try to detect if the current repo has a main branch, or master.
+
+set -e
+
+if git branch -l | grep -q "main"; then
+  echo "main"
+  exit 0
+fi
+
+if git branch -l | grep -q "master"; then
+  echo "master"
+  exit 0
+fi
+
+exit 1