From 4a0a4f55981287ec7e69e2c4ff779f88c8a8b3b1 Mon Sep 17 00:00:00 2001
From: Timo Wilken
Date: Thu, 19 Jan 2023 00:28:36 +0100
Subject: Improve shell prompt cwd abbreviation handling

---
 tw/home/files/prompt.zsh | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'tw/home/files/prompt.zsh')

diff --git a/tw/home/files/prompt.zsh b/tw/home/files/prompt.zsh
index 15e2d49b..7cc7342b 100644
--- a/tw/home/files/prompt.zsh
+++ b/tw/home/files/prompt.zsh
@@ -59,8 +59,11 @@ prompt_fast_preexec () {
 }
 
 prompt_fast_pwd () {
-  local fast_path="$(print -Pn '%~')"
-  if (($#fast_path / $COLUMNS.0 * 100 > ${PROMPT_FAST_PATH_PERCENT:-33})); then
+  local fast_path=$(print -Pn '%~')
+  local components=${#fast_path//[^\/]}  # this counts the initial /
+  # Only abbreviate as /1/…/2/3 if we have something to cut out between 1 and 2!
+  # /1/2/3 -> /1/…/2/3 makes no sense.
+  if ((components > 3 && $#fast_path > ${PROMPT_FAST_PATH_FRACTION:-0.33} * COLUMNS)); then
     print -Pn '%-1~/…/%2/'
   else
     print "$fast_path"
-- 
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