improve path resolution using zshexpn

[etc/zsh.git] / .zsh / zshrc / 60_vcsprompt

diff --git a/.zsh/zshrc/60_vcsprompt b/.zsh/zshrc/60_vcsprompt
index 9fa0f44e4a458852e7d636f316562eaa0d898e5c..b7cc3b98b9beb33bc87316033e81964f94ed6a9a 100644 (file)
--- a/.zsh/zshrc/60_vcsprompt
+++ b/.zsh/zshrc/60_vcsprompt
@@ -5,7 +5,7 @@
 # Copyright © 1994–2008 martin f. krafft <madduck@madduck.net>
 # Released under the terms of the Artistic Licence 2.0
 #
 # Copyright © 1994–2008 martin f. krafft <madduck@madduck.net>
 # Released under the terms of the Artistic Licence 2.0
 #

-# Source repository: http://git.madduck.net/v/etc/zsh.git
+# Source repository: git://git.madduck.net/etc/zsh.git

 #
 # Shamelessly based on http://glandium.org/blog/?p=170
 #
 #
 # Shamelessly based on http://glandium.org/blog/?p=170
 #


@@ -14,24 +14,38 @@ __git_get_reporoot()
 {
   # return the full path to the root of the current git repository
   [ -d "$GIT_DIR" ] && echo "$GIT_DIR" && return 0
 {
   # return the full path to the root of the current git repository
   [ -d "$GIT_DIR" ] && echo "$GIT_DIR" && return 0

-  local relroot
-  relroot="$(git rev-parse --show-cdup 2>/dev/null)" || return 1
-  if [ -n "$relroot" ]; then
-    readlink -f "$relroot"
-  else
-    echo $PWD
-  fi
+  local dir; dir="$PWD/$(git rev-parse --show-cdup)"
+  # do not use --show-toplevel because it resolves symlinks
+  echo $dir:a

 }
 
 __git_get_branch()
 {
   # return the name of the git branch we're on
 }
 
 __git_get_branch()
 {
   # return the name of the git branch we're on

-  local ref
-  ref=$(git symbolic-ref -q HEAD 2>/dev/null \
-     || git-name-rev --name-only HEAD 2>/dev/null) || return 1
+  local ref gitdir
+  gitdir="$(git rev-parse --git-dir)"
+  ref=$(git --git-dir="$gitdir" symbolic-ref -q HEAD 2>/dev/null \
+     || git --git-dir="$gitdir" name-rev --name-only HEAD 2>/dev/null) || return 1

   echo "${ref#refs/heads/}"
 }
 
   echo "${ref#refs/heads/}"
 }
 

+__git_print_preprompt()
+{
+  [ "$(git config --get core.bare)" = false ] || return
+
+  local output
+  output=(${(f):-"$(git diff --stat --relative 2>/dev/null)"})
+  if [[ ${#output} -gt 1 ]]; then
+    echo changes on filesystem:
+    print "${${(F)output[1,-2]}//\.\.\./…}"
+  fi
+  output=(${(f):-"$(git diff --cached --stat --relative 2>/dev/null)"})
+  if [[ ${#output} -gt 1 ]]; then
+    echo cached/staged changes:
+    print "${${(F)output[1,-2]}//\.\.\./…}"
+  fi
+}
+

 __hg_get_reporoot()
 {
   hg root
 __hg_get_reporoot()
 {
   hg root


@@ -85,7 +99,7 @@ __vcs_get_prompt_path_components()
 
   # shortcut: if there are no arguments, return a default prompt
   if [ -z "${1:-}" ]; then
 
   # shortcut: if there are no arguments, return a default prompt
   if [ -z "${1:-}" ]; then

-    pwdnamed="${(%):-%${_PROMPT_PATH_MAXLEN}<..<%~%<<}"
+    pwdnamed="${(%):-%${_PROMPT_PATH_MAXLEN}<…<%~%<<}"

     echo "$pwdnamed"
     return
   fi
     echo "$pwdnamed"
     return
   fi


@@ -123,7 +137,7 @@ __vcs_get_prompt_path_components()
   prelen=$((${_PROMPT_PATH_MAXLEN:-25} - $#branch - $#postfix))
   minlen=${_PROMPT_PATH_MINLEN:-10}
   (( $prelen < $minlen )) && prelen=$minlen
   prelen=$((${_PROMPT_PATH_MAXLEN:-25} - $#branch - $#postfix))
   minlen=${_PROMPT_PATH_MINLEN:-10}
   (( $prelen < $minlen )) && prelen=$minlen

-  prefix="${(%):-%${prelen}<..<%-${precomps}~%<<}"
+  prefix="${(%):-%${prelen}<…<%-${precomps}~%<<}"

 
   echo "'$prefix'" "'$branch'" "'$postfix'"
 }
 
   echo "'$prefix'" "'$branch'" "'$postfix'"
 }


@@ -140,12 +154,19 @@ __vcs_set_prompt_variables()
         { error "could not determine git repository root"; return 1 }
       branch="$(__git_get_branch)" ||
         { error "could not determine git branch"; return 1 }
         { error "could not determine git repository root"; return 1 }
       branch="$(__git_get_branch)" ||
         { error "could not determine git branch"; return 1 }

-      eval set -- $(__vcs_get_prompt_path_components "$reporoot" "$branch")
-      if [ -d "$GIT_DIR" ]; then
-        # poor man's replace until I find out how to do named dirs properly
-        # here:
-        local _D="${GIT_DIR/$HOME/~}"
-        set -- "$_D" "$2" "${${1#$_D}%/}"
+      if [ -n "$VCSH_REPO_NAME" ]; then
+        # if vcsh is used to get a subshell, then the repo root is the home
+        # directory, but we want to indicate the vcsh context too:
+        eval set -- $(__vcs_get_prompt_path_components "$HOME" "$branch")
+        set -- "vcsh:$VCSH_REPO_NAME" "$2" "$3"
+      else
+        eval set -- $(__vcs_get_prompt_path_components "$reporoot" "$branch")
+        if [ -d "$GIT_DIR" ]; then
+          # poor man's replace until I find out how to do named dirs properly
+          # here:
+          local _D="${GIT_DIR/$HOME/~}"
+          set -- "$_D" "$2" "${${1#$_D}%/}"
+        fi

       fi
       ;;
     hg)
       fi
       ;;
     hg)


@@ -167,7 +188,7 @@ __vcs_set_prompt_variables()
         NONE) :;;
         *) warn "$repotype repositories not (yet) supported in the prompt";;
       esac
         NONE) :;;
         *) warn "$repotype repositories not (yet) supported in the prompt";;
       esac

-      local p="%${MAXLEN}<..<%~%<<"
+      local p="%${MAXLEN}<…<%~%<<"

       #TODO find a better way so we don't have to nuke $psvar, but since the
       #     %(nv.true.false) check for prompts checks element count, not
       #     content, that's all we get for now
       #TODO find a better way so we don't have to nuke $psvar, but since the
       #     %(nv.true.false) check for prompts checks element count, not
       #     content, that's all we get for now


@@ -178,6 +199,18 @@ __vcs_set_prompt_variables()
   psvar[1,3]=($1 $2 $3)
 }
 
   psvar[1,3]=($1 $2 $3)
 }
 

+__vcs_print_preprompt()
+{
+  local reporoot
+  repotype="${1:-$(__vcs_get_repo_type)}"
+
+  case "$repotype" in
+    git)
+      __git_print_preprompt
+      ;;
+  esac
+}
+

 if ! is_root; then
   # too dangerous to be run as root
 
 if ! is_root; then
   # too dangerous to be run as root
 


@@ -195,6 +228,11 @@ if ! is_root; then
   }
   chpwd_functions+=_update_vcs_prompt_vars
 
   }
   chpwd_functions+=_update_vcs_prompt_vars
 

+  _print_preprompt() {
+    [[ $? -eq 0 ]] && __vcs_print_preprompt
+  }
+  precmd_functions+=_print_preprompt
+

   # call it once
   _update_vcs_prompt_vars
 fi
   # call it once
   _update_vcs_prompt_vars
 fi