Add a hostname override

Based on issue #82, we now provide `-B` to override the hostname. In
particular:

- `mkrc -B foo` will enable `-o` but with the hostname set up `foo`.
- `lsrc -B foo` will work like normal `lsrc` except it treats `host-foo`
as the host-specific directory.
- `rcup -B foo` will run a normal `rcup` except `host-foo` is the
host-specific directory.
- `rcdn -B foo` is just like normal `rcdn`, but with `host-foo` as the
  host-specific directory.

The `HOSTNAME` can also be set in the rcrc(5), and this is overridden by
the aforementioned `-B`.

While making this change: The `test/Makefile.am` used a mix of tabs and
spaces. Since it's a Makefile, replace it all with tabs.

6 files changed, 69 insertions, 18 deletions

diff --git a/test/Makefile.am b/test/Makefile.am
index 9cbc6b2..53dcf0b 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -1,20 +1,23 @@
 TESTS = \
-  lsrc-dotfiles-dirs.t \
-  lsrc-excludes.t \
-  lsrc-hostname.t \
-  lsrc-sigils.t \
-  lsrc.t \
-  lsrc-tags.t \
-  lsrc-usage.t \
-  mkrc-alternate-dotfiles-dir.t \
-  mkrc-copy-file.t \
-  mkrc-host-file.t \
-  mkrc-simple-output.t \
-  mkrc-tagged-file.t \
-  mkrc-usage.t \
-  rcrc-custom.t \
-  rcrc.t \
-  rcup-link-files.t \
-  rcup-usage.t
+	lsrc-dotfiles-dirs.t \
+	lsrc-excludes.t \
+	lsrc-hostname.t \
+	lsrc-sigils.t \
+	lsrc.t \
+	lsrc-tags.t \
+	lsrc-usage.t \
+	mkrc-alternate-dotfiles-dir.t \
+	mkrc-copy-file.t \
+	mkrc-host-file.t \
+	mkrc-hostname.t \
+	mkrc-simple-output.t \
+	mkrc-tagged-file.t \
+	mkrc-usage.t \
+	rcrc-custom.t \
+	rcrc-hostname.t \
+	rcrc.t \
+	rcup-link-files.t \
+	rcup-hostname.t \
+	rcup-usage.t
 
 LOG_COMPILER = cram
diff --git a/test/lsrc-hostname.t b/test/lsrc-hostname.t
index 9170c74..35ad0fe 100644
--- a/test/lsrc-hostname.t
+++ b/test/lsrc-hostname.t
@@ -11,3 +11,7 @@ Should include entries that match hostname
   $ lsrc
   /*/.example:/*/.dotfiles/example (glob)
   /*/.h-example:/*/.dotfiles/host-*/h-example (glob)
+
+  $ lsrc -B not-hostname
+  /*/.example:/*/.dotfiles/example (glob)
+  /*/.nh-example:/*/.dotfiles/host-*/nh-example (glob)
diff --git a/test/mkrc-hostname.t b/test/mkrc-hostname.t
new file mode 100644
index 0000000..849af75
--- /dev/null
+++ b/test/mkrc-hostname.t
@@ -0,0 +1,9 @@
+  $ . "$TESTDIR/helper.sh"
+
+Able to override the hostname
+
+  $ touch .example
+
+  $ mkrc -B another_thing .example >/dev/null
+
+  $ assert_linked "$HOME/.example" "$HOME/.dotfiles/host-another_thing/example"
diff --git a/test/rcrc-custom.t b/test/rcrc-custom.t
index 658099d..9c1c7a3 100644
--- a/test/rcrc-custom.t
+++ b/test/rcrc-custom.t
@@ -1,6 +1,6 @@
   $ . "$TESTDIR/helper.sh"
 
-mkrc should accept -r for a custom rcrc
+mkrc should accept a custom rcrc
 
   $ touch .example
   > mkdir .other-dotfiles
diff --git a/test/rcrc-hostname.t b/test/rcrc-hostname.t
new file mode 100644
index 0000000..1008cd9
--- /dev/null
+++ b/test/rcrc-hostname.t
@@ -0,0 +1,21 @@
+  $ . "$TESTDIR/helper.sh"
+
+The hostname can be set in ~/.rcrc
+
+  $ touch .dotfiles/example
+  > mkdir .dotfiles/host-$(hostname)
+  > touch .dotfiles/host-$(hostname)/h-example
+  > mkdir .dotfiles/host-eggplant_firetruck
+  > touch .dotfiles/host-eggplant_firetruck/nh-example
+  > mkdir .dotfiles/host-haircut_hammer
+  > touch .dotfiles/host-haircut_hammer/nh-example
+
+  $ echo 'HOSTNAME="eggplant_firetruck"' > $HOME/.rcrc
+
+  $ lsrc
+  /*/.example:/*/.dotfiles/example (glob)
+  /*/.nh-example:/*/.dotfiles/host-eggplant_firetruck/nh-example (glob)
+
+  $ lsrc -B haircut_hammer
+  /*/.example:/*/.dotfiles/example (glob)
+  /*/.nh-example:/*/.dotfiles/host-haircut_hammer/nh-example (glob)
diff --git a/test/rcup-hostname.t b/test/rcup-hostname.t
new file mode 100644
index 0000000..b85dbb8
--- /dev/null
+++ b/test/rcup-hostname.t
@@ -0,0 +1,14 @@
+  $ . "$TESTDIR/helper.sh"
+
+Should create symlinks for files and directories in the hostname
+
+  $ touch .dotfiles/example
+  > mkdir .dotfiles/host-awesome_host/
+  > touch .dotfiles/host-awesome_host/example2
+  > mkdir .dotfiles/host-$(hostname)/
+  > touch .dotfiles/host-$(hostname)/example3
+
+  $ rcup -B awesome_host > /dev/null
+
+  $ assert_linked "$HOME/.example" "$HOME/.dotfiles/example"
+  $ assert_linked "$HOME/.example2" "$HOME/.dotfiles/host-awesome_host/example2"