Support rc files without leading dots

This adds the `-U` option to lsrc(1), rcup(1), and rcdn(1) commands; its
argument is an exclusion pattern. Any file matching this pattern is
symlinked without the leading dot.

There is also a `-u` option to undo a `-U`. The `UNDOTTED` setting in
rcrc(5) can be used to set it permanently.

The mkrc(1) command has `-U` and `-u` flags. They take no argument.

6 files changed, 28 insertions, 7 deletions

diff --git a/test/Makefile.am b/test/Makefile.am
index aafa5ca..e4d4a39 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -7,6 +7,7 @@ TESTS = \
 	lsrc-symlink-dirs.t \
 	lsrc-tags.t \
 	lsrc-usage.t \
+	lsrc-undotted.t \
 	mkrc-alternate-dotfiles-dir.t \
 	mkrc-copy-file.t \
 	mkrc-host-file.t \
@@ -15,6 +16,7 @@ TESTS = \
 	mkrc-symlink-dirs.t \
 	mkrc-tagged-file.t \
 	mkrc-usage.t \
+	mkrc-undotted.t \
 	rcrc-custom.t \
 	rcrc-hostname.t \
 	rcrc.t \
diff --git a/test/lsrc-undotted.t b/test/lsrc-undotted.t
new file mode 100644
index 0000000..9b8737f
--- /dev/null
+++ b/test/lsrc-undotted.t
@@ -0,0 +1,11 @@
+  $ . "$TESTDIR/helper.sh"
+
+Should undot files with -U
+
+  $ touch .dotfiles/example
+  > touch .dotfiles/undotted
+
+  $ lsrc -U undotted
+  /*/.example:/*/.dotfiles/example (glob)
+  /*/undotted:/*/.dotfiles/undotted (glob)
+
diff --git a/test/lsrc-usage.t b/test/lsrc-usage.t
index 7d54be8..409a9bd 100644
--- a/test/lsrc-usage.t
+++ b/test/lsrc-usage.t
@@ -3,12 +3,12 @@
 -h should output usage information and exit 0
 
   $ lsrc -h
-  Usage: lsrc [-FhqVv] [-B HOSTNAME] [-d DOT_DIR] [-I EXCL_PAT] [-S EXCL_PAT ] [-s EXCL_PAT] [-t TAG] [-x EXCL_PAT]
+  Usage: lsrc [-FhqVv] [-B HOSTNAME] [-d DOT_DIR] [-I EXCL_PAT] [-S EXCL_PAT] [-s EXCL_PAT] [-t TAG] [-U EXCL_PAT] [-u EXCL_PAT] [-x EXCL_PAT]
   see lsrc(1) and rcm(7) for more details
 
 Unsupported options should output usage information and exit EX_USAGE
 
   $ lsrc --version
-  Usage: lsrc [-FhqVv] [-B HOSTNAME] [-d DOT_DIR] [-I EXCL_PAT] [-S EXCL_PAT ] [-s EXCL_PAT] [-t TAG] [-x EXCL_PAT]
+  Usage: lsrc [-FhqVv] [-B HOSTNAME] [-d DOT_DIR] [-I EXCL_PAT] [-S EXCL_PAT] [-s EXCL_PAT] [-t TAG] [-U EXCL_PAT] [-u EXCL_PAT] [-x EXCL_PAT]
   see lsrc(1) and rcm(7) for more details
   [64]
diff --git a/test/mkrc-undotted.t b/test/mkrc-undotted.t
new file mode 100644
index 0000000..95dff18
--- /dev/null
+++ b/test/mkrc-undotted.t
@@ -0,0 +1,8 @@
+  $ . "$TESTDIR/helper.sh"
+  > touch random-dotfile
+
+Passing -U should make a file be undotted
+
+  $ mkrc -U random-dotfile  >/dev/null
+
+  $ assert_linked "$HOME/random-dotfile" "$HOME/.dotfiles/random-dotfile"
diff --git a/test/mkrc-usage.t b/test/mkrc-usage.t
index 4649152..b6715e9 100644
--- a/test/mkrc-usage.t
+++ b/test/mkrc-usage.t
@@ -3,19 +3,19 @@
 no arguments should output usage information and exit EX_USAGE
 
   $ mkrc
-  Usage: mkrc [-ChSsVvqo] [-t TAG] [-d DIR] [-B HOSTNAME] FILES ...
+  Usage: mkrc [-ChSsUuVvqo] [-t TAG] [-d DIR] [-B HOSTNAME] FILES ...
   see mkrc(1) and rcm(7) for more details
   [64]
 
 -h should output usage information and exit 0
 
   $ mkrc -h
-  Usage: mkrc [-ChSsVvqo] [-t TAG] [-d DIR] [-B HOSTNAME] FILES ...
+  Usage: mkrc [-ChSsUuVvqo] [-t TAG] [-d DIR] [-B HOSTNAME] FILES ...
   see mkrc(1) and rcm(7) for more details
 
 Unsupported options should output usage information and exit EX_USAGE
 
   $ mkrc --version
-  Usage: mkrc [-ChSsVvqo] [-t TAG] [-d DIR] [-B HOSTNAME] FILES ...
+  Usage: mkrc [-ChSsUuVvqo] [-t TAG] [-d DIR] [-B HOSTNAME] FILES ...
   see mkrc(1) and rcm(7) for more details
   [64]
diff --git a/test/rcup-usage.t b/test/rcup-usage.t
index fb0b78f..c15764a 100644
--- a/test/rcup-usage.t
+++ b/test/rcup-usage.t
@@ -3,12 +3,12 @@
 -h should output usage information and exit 0
 
   $ rcup -h
-  Usage: rcup [-CfghiKkqVv] [-B HOSTNAME] [-d DOT_DIR] [-I EXCL_PAT] [-S EXCL_PAT] [-s EXCL_PAT] [-t TAG] [-x EXCL_PAT]
+  Usage: rcup [-CfhiKkqVv] [-B HOSTNAME] [-d DOT_DIR] [-I EXCL_PAT] [-S EXCL_PAT] [-s EXCL_PAT] [-t TAG] [-U EXCL_PAT] [-u EXCL_PAT] [-x EXCL_PAT]
   see rcup(1) and rcm(7) for more details
 
 Unsupported options should output usage information and exit EX_USAGE
 
   $ rcup --version
-  Usage: rcup [-CfghiKkqVv] [-B HOSTNAME] [-d DOT_DIR] [-I EXCL_PAT] [-S EXCL_PAT] [-s EXCL_PAT] [-t TAG] [-x EXCL_PAT]
+  Usage: rcup [-CfhiKkqVv] [-B HOSTNAME] [-d DOT_DIR] [-I EXCL_PAT] [-S EXCL_PAT] [-s EXCL_PAT] [-t TAG] [-U EXCL_PAT] [-u EXCL_PAT] [-x EXCL_PAT]
   see rcup(1) and rcm(7) for more details
   [64]