update URL and copyright

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

diff --git a/.zsh/zshrc/60_vcsprompt b/.zsh/zshrc/60_vcsprompt
index d12f686c2531f618d46ce8bfd88493b5ad902ea9..d0d33c1288cb73bea117a59c618dc79d1b2c8e0a 100644 (file)
--- a/.zsh/zshrc/60_vcsprompt
+++ b/.zsh/zshrc/60_vcsprompt
@@ -2,38 +2,46 @@
 #
 # Make git information available to the prompt
 #
-# Copyright © 1994–2008 martin f. krafft <madduck@madduck.net>
+# Copyright © 1994–2017 martin f. krafft <madduck@madduck.net>
 # Released under the terms of the Artistic Licence 2.0
 #
-# Source repository: git://git.madduck.net/etc/zsh.git
+# Source repository: http://git.madduck.net/v/etc/zsh.git
 #
 # Shamelessly based on http://glandium.org/blog/?p=170
 #
 
+__on_networkfs()
+{
+  case $(df -T . | sed -rne '$s,^[^[:space:]]+[[:space:]]+([^[:space:]]+).*,\1,p') in
+    (cifs|nfs) return 0;;
+  esac
+  return 1
+}
+
 __git_get_reporoot()
 {
   # 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
-  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/}"
 }
 
 __git_print_preprompt()
 {
+  [ "$(git config --get core.bare)" = false ] || return
+  __on_networkfs && return
+
   local output
   output=(${(f):-"$(git diff --stat --relative 2>/dev/null)"})
   if [[ ${#output} -gt 1 ]]; then
@@ -155,12 +163,19 @@ __vcs_set_prompt_variables()
         { error "could not determine git repository root"; return 1 }
       branch="$(__git_get_branch)" ||
         { error "could not determine git branch"; return 1 }
-      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)