From 99b6971f62cdb02d52c3c4f15f84c97dccaeb344 Mon Sep 17 00:00:00 2001
From: Xian Wang <dev@xianwang.io>
Date: Wed, 23 Mar 2022 10:12:52 -0400
Subject: zsh: update rcs and functions

---
 zsh/functions/update_current_git_vars | 43 +++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 zsh/functions/update_current_git_vars

(limited to 'zsh/functions/update_current_git_vars')

diff --git a/zsh/functions/update_current_git_vars b/zsh/functions/update_current_git_vars
new file mode 100644
index 0000000..0e65c37
--- /dev/null
+++ b/zsh/functions/update_current_git_vars
@@ -0,0 +1,43 @@
+# based on http://sebastiancelis.com/2009/nov/16/zsh-prompt-git-users/
+unset __CURRENT_GIT_BRANCH
+unset __CURRENT_GIT_BRANCH_STATUS
+unset __CURRENT_GIT_BRANCH_IS_DIRTY
+
+local git_dir head
+
+git_dir="$(git rev-parse --git-dir 2>/dev/null)"
+
+if [[ -n "$git_dir" ]] ; then
+  head=$(cat "$git_dir/HEAD")
+  if [[ $head =~ '^ref: ' ]]; then
+    __CURRENT_GIT_BRANCH=$(expr "$head" : 'ref: refs/heads/\(.*\)')
+  else
+    __CURRENT_GIT_BRANCH="no-branch"
+  fi
+fi
+
+#local st="$(git status 2>/dev/null)"
+#if [[ -n "$st" ]]; then
+#  local -a arr
+#  arr=(${(f)st})
+#
+#  if [[ $arr[1] =~ 'Not currently on any branch.' ]]; then
+#  __CURRENT_GIT_BRANCH='no-branch'
+#  else
+#  __CURRENT_GIT_BRANCH="${arr[1][(w)4]}";
+#  fi
+#
+#  if [[ $arr[2] =~ 'Your branch is' ]]; then
+#    if [[ $arr[2] =~ 'ahead' ]]; then
+#    __CURRENT_GIT_BRANCH_STATUS='ahead'
+#    elif [[ $arr[2] =~ 'diverged' ]]; then
+#    __CURRENT_GIT_BRANCH_STATUS='diverged'
+#    else
+#    __CURRENT_GIT_BRANCH_STATUS='behind'
+#    fi
+#  fi
+#
+#  if [[ ! $st =~ 'nothing to commit' ]]; then
+#    __CURRENT_GIT_BRANCH_IS_DIRTY='1'
+#  fi
+#fi
-- 
cgit v1.2.3