fix(agnoster): respect bg / fg user envs (#12897)

Co-authored-by: Carlo Sala <carlosalag@protonmail.com>

README.md

@@ -163,7 +163,7 @@ adds any) and extra goodies that are included in that particular plugin.
 
 ### Themes
 
-We'll admit it. Early in the Oh My Zsh world, we may have gotten a bit too theme happy. We have over one
+We'll admit it. Early in the Oh My Zsh world, we may have gotten a bit too theme-happy. We have over one
 hundred and fifty themes now bundled. Most of them have
 [screenshots](https://github.com/ohmyzsh/ohmyzsh/wiki/Themes) on the wiki (We are working on updating this!).
 Check them out!
@@ -218,7 +218,7 @@ terminal window.
 ZSH_THEME="random" # (...please let it be pie... please be some pie..)
 ```
 
-And if you want to pick random theme from a list of your favorite themes:
+And if you want to pick a random theme from a list of your favorite themes:
 
 ```sh
 ZSH_THEME_RANDOM_CANDIDATES=(
@@ -426,7 +426,7 @@ turn it off by setting the following in your .zshrc file, before Oh My Zsh is so
 zstyle ':omz:alpha:lib:git' async-prompt no
 ```
 
-If your problem is that the git prompt just stopped appearing, you can try to force it setting the following
+If your problem is that the git prompt just stopped appearing, you can try to force it by setting the following
 configuration before `oh-my-zsh.sh` is sourced. If it still does not work, please open an issue with your
 case.
 

plugins/git-prompt/gitstatus.py

@@ -23,9 +23,10 @@ def get_tagname_or_hash():
         return hash_
     return None
 
-# Re-use method from https://github.com/magicmonty/bash-git-prompt to get stashs count
+# Re-use method from https://github.com/magicmonty/bash-git-prompt to get stash count
+# Use `--git-common-dir` to avoid problems with git worktrees, which don't have individual stashes
 def get_stash():
-    cmd = Popen(['git', 'rev-parse', '--git-dir'], stdout=PIPE, stderr=PIPE)
+    cmd = Popen(['git', 'rev-parse', '--git-common-dir'], stdout=PIPE, stderr=PIPE)
     so, se = cmd.communicate()
     stash_file = '%s%s' % (so.decode('utf-8').rstrip(), '/logs/refs/stash')
 
@@ -35,7 +36,6 @@ def get_stash():
     except IOError:
         return 0
 
-
 # `git status --porcelain --branch` can collect all information
 # branch, remote_branch, untracked, staged, changed, conflicts, ahead, behind
 po = Popen(['git', 'status', '--porcelain', '--branch'], env=dict(os.environ, LANG="C"), stdout=PIPE, stderr=PIPE)

themes/agnoster.zsh-theme

@@ -36,12 +36,12 @@ CURRENT_BG='NONE'
 
 case ${SOLARIZED_THEME:-dark} in
     light)
-      CURRENT_FG='white'
-      CURRENT_DEFAULT_FG='white'
+      CURRENT_FG=${CURRENT_FG:-'white'}
+      CURRENT_DEFAULT_FG=${CURRENT_DEFAULT_FG:-'white'}
       ;;
     *)
-      CURRENT_FG='black'
-      CURRENT_DEFAULT_FG='default'
+      CURRENT_FG=${CURRENT_FG:-'black'}
+      CURRENT_DEFAULT_FG=${CURRENT_DEFAULT_FG:-'default'}
       ;;
 esac