Add prefix/suffix for git status

lib/git.zsh

@@ -0,0 +1,67 @@
+# get the name of the branch we are on
+function git_prompt_info() {
+  ref=$(git symbolic-ref HEAD 2> /dev/null) || return
+  echo "$ZSH_THEME_GIT_PROMPT_PREFIX${ref#refs/heads/}$(parse_git_dirty)$ZSH_THEME_GIT_PROMPT_SUFFIX"
+}
+
+# Checks if working tree is dirty
+parse_git_dirty() {
+  if [[ -n $(git status -s 2> /dev/null) ]]; then
+    echo "$ZSH_THEME_GIT_PROMPT_DIRTY"
+  else
+    echo "$ZSH_THEME_GIT_PROMPT_CLEAN"
+  fi
+}
+
+# Checks if there are commits ahead from remote
+function git_prompt_ahead() {
+  if $(echo "$(git log origin/$(current_branch)..HEAD 2> /dev/null)" | grep '^commit' &> /dev/null); then
+    echo "$ZSH_THEME_GIT_PROMPT_AHEAD"
+  fi
+}
+
+# Formats prompt string for current git commit short SHA
+function git_prompt_short_sha() {
+  SHA=$(git rev-parse --short HEAD 2> /dev/null) && echo "$ZSH_THEME_GIT_PROMPT_SHA_BEFORE$SHA$ZSH_THEME_GIT_PROMPT_SHA_AFTER"
+}
+
+# Formats prompt string for current git commit long SHA
+function git_prompt_long_sha() {
+  SHA=$(git rev-parse HEAD 2> /dev/null) && echo "$ZSH_THEME_GIT_PROMPT_SHA_BEFORE$SHA$ZSH_THEME_GIT_PROMPT_SHA_AFTER"
+}
+
+# Get the status of the working tree
+git_prompt_status() {
+  INDEX=$(git status --porcelain 2> /dev/null)
+  STATUS=""
+  if $(echo "$INDEX" | grep '^?? ' &> /dev/null); then
+    STATUS="$ZSH_THEME_GIT_PROMPT_UNTRACKED$STATUS"
+  fi
+  if $(echo "$INDEX" | grep '^A  ' &> /dev/null); then
+    STATUS="$ZSH_THEME_GIT_PROMPT_ADDED$STATUS"
+  elif $(echo "$INDEX" | grep '^M  ' &> /dev/null); then
+    STATUS="$ZSH_THEME_GIT_PROMPT_ADDED$STATUS"
+  fi
+  if $(echo "$INDEX" | grep '^ M ' &> /dev/null); then
+    STATUS="$ZSH_THEME_GIT_PROMPT_MODIFIED$STATUS"
+  elif $(echo "$INDEX" | grep '^AM ' &> /dev/null); then
+    STATUS="$ZSH_THEME_GIT_PROMPT_MODIFIED$STATUS"
+  elif $(echo "$INDEX" | grep '^ T ' &> /dev/null); then
+    STATUS="$ZSH_THEME_GIT_PROMPT_MODIFIED$STATUS"
+  fi
+  if $(echo "$INDEX" | grep '^R  ' &> /dev/null); then
+    STATUS="$ZSH_THEME_GIT_PROMPT_RENAMED$STATUS"
+  fi
+  if $(echo "$INDEX" | grep '^ D ' &> /dev/null); then
+    STATUS="$ZSH_THEME_GIT_PROMPT_DELETED$STATUS"
+  elif $(echo "$INDEX" | grep '^AD ' &> /dev/null); then
+    STATUS="$ZSH_THEME_GIT_PROMPT_DELETED$STATUS"
+  fi
+  if $(echo "$INDEX" | grep '^UU ' &> /dev/null); then
+    STATUS="$ZSH_THEME_GIT_PROMPT_UNMERGED$STATUS"
+  fi
+  if [ ${#STATUS} -lt 1 ]; then
+    return
+  fi
+  echo "$ZSH_THEME_GIT_PROMPT_STATUS_PREFIX$STATUS$ZSH_THEME_GIT_PROMPT_STATUS_SUFFIX"
+}