Force some directories to be symlinks

Typically a directory structure is copied instead of symlinked, while
files are symlinked. However, some cases require symlinked dirs: git
submodules, vim plugins, and so on.

This introduces a `SYMLINK_DIRS` option for rcrc(5) that takes a
space-separated list of "exclude patterns". Any directory matching these
patterns is symlinked.

This also introduces a `-S` argument for lsrc(1), rcup(1), and rcdn(1).
This argument takes a pattern, for one-off directory symlinking. It can
be repeated.

This also introduces `-S` and `-s` for mkrc(1). `-S` will re-install the
files as symlinks, and `-s` will not.

This does work with `-C`, though perhaps unintuitively - we don't know
what the user means in this case. However, it will not crash.

Bug: `-s` does not work right if `SYMLINK_DIRS` is set. Bug #36
addresses this.

1 files changed, 7 insertions, 1 deletions

diff --git a/share/rcm.sh.in b/share/rcm.sh.in
index c9a98b3..f4ee212 100644
--- a/share/rcm.sh.in
+++ b/share/rcm.sh.in
@@ -10,7 +10,7 @@ ERROR=echo_error
 VERBOSE=:
 MKDIR=mkdir
 LN="ln -s"
-CP=cp
+CP="cp -R"
 RM=rm
 DEFAULT_DOTFILES_DIR=$HOME/.dotfiles
 MV=mv
@@ -117,6 +117,12 @@ run_hooks() {
   fi
 }
 
+de_dot() {
+  $DEBUG "de_dot $1"
+  $DEBUG "  with DEST_DIR: $DEST_DIR"
+  echo $1 | sed -e "s|$DEST_DIR/||" | sed -e 's/^\.//'
+}
+
 : ${RCRC:=$HOME/.rcrc}
 
 if [ -r "$RCRC" ]; then