28065 plus unposted zsh.mdd:

add cdr and related functions and docs

1 files changed, 49 insertions, 0 deletions

diff --git a/Functions/Chpwd/chpwd_recent_dirs b/Functions/Chpwd/chpwd_recent_dirs
new file mode 100644
index 000000000..10a6b4e34
--- /dev/null
+++ b/Functions/Chpwd/chpwd_recent_dirs
@@ -0,0 +1,49 @@
+# Save the current directory in the stack of most recently used directories.
+
+emulate -L zsh
+setopt extendedglob
+
+local -aU reply
+integer changed
+
+autoload -Uz chpwd_recent_filehandler chpwd_recent_add
+
+# Don't save if this is not interactive, or is in a subshell.
+# Don't save if this is not being called directly from the top level
+# of the shell via a straightforward sequence of shell functions.
+# So this is called
+#  - on any straightforward cd or pushd (including AUTO_CD)
+#  - any time cd or pushd is called from a function invoked directly
+#    or indirectly from the command line, e.g. if pushd is a function
+#    fixing the order of directories that got broken years ago
+# but it is not called any time
+#  - the shell is not interactive
+#  - we forked
+#  - we are being eval'd, including for some special purpose such
+#    as a style
+#  - we are not called from the top-level command loop, for example
+#    we are in a completion function (which is called from zle
+#    when the main top-level command interpreter isn't running)
+#  - obviously, when cd -q is in use (that's what the option is for).
+#
+# For compatibility with older shells, skip this test if $ZSH_EVAL_CONTEXT
+# isn't set.  This will never be the case inside a shell function when
+# the variable is implemented.
+if [[ ! -o interactive  || $ZSH_SUBSHELL -ne 0 || \
+  ( -n $ZSH_EVAL_CONTEXT && \
+  $ZSH_EVAL_CONTEXT != toplevel(:[a-z]#func|)# ) ]]; then
+  return
+fi
+
+chpwd_recent_filehandler
+
+if [[ $reply[1] != $PWD ]]; then
+  if [[ -n $OLDPWD && $reply[1] != $OLDPWD ]]; then
+    # The first time we change directory we probably don't have
+    # the initial directory.
+    chpwd_recent_add $OLDPWD && changed=1
+  fi
+  chpwd_recent_add $PWD && changed=1
+
+  (( changed )) && chpwd_recent_filehandler $reply
+fi