Add modularity to widget placement and inclusion (#95)

.travis.yml

@@ -9,7 +9,7 @@ os:
 jobs:
   allow_failures:
     - rust: nightly
-    - env: TARGET=x86_64-pc-windows-gnu # Seems to cause problems.  TODO: Add test for it, but keep allow fail.
+    - env: TARGET=x86_64-pc-windows-gnu # Seems to cause problems.
   fast_finish: true
 branches:
   only:

Cargo.toml

@@ -31,7 +31,7 @@ fern = "0.6.0"
 futures = "0.3.4"
 heim = "0.0.10"
 log = "0.4.8"
-regex = "1.3.4"
+regex = "1.3"
 sysinfo = "0.11"
 toml = "0.5.6"
 tui = {version = "0.8", features = ["crossterm"], default-features = false }

clippy.toml

@@ -0,0 +1 @@
+cognitive-complexity-threshold = 35

docs/config.md

@@ -8,7 +8,6 @@ One use of a config file is to set boot flags to execute without having to state
 - These options are generally the same as the long names as other flags (ex: `case_sensitive = true`).
 - Note that if a flag and an option conflict, the flag has higher precedence (ex: if the `-c` and `temperature_type = kelvin` both exist, the Celsius temperature type is ultimately chosen).
 - For temperature type, use `temperature_type = "kelvin|k|celsius|c|fahrenheit|f"`.
-- For default widgets, use `default_widget = "cpu_default|memory_default|disk_default|temperature_default|network_default|process_default"`.
 
 ## Colours
 
@@ -36,6 +35,45 @@ Supported named colours are one of the following: `Reset, Black, Red, Green, Yel
 
 Note some colours may not be compatible with the terminal you are using. For example, macOS's default Terminal does not play nice with many colours.
 
+## Layout
+
+As of 0.3.0, bottom supports custom layouts. Layouts are in the TOML specification, and are arranged by row -> column -> row. For example, the default layout:
+
+```toml
+[[row]]
+  ratio=30
+  [[row.child]]
+  type="cpu"
+[[row]]
+    ratio=40
+    [[row.child]]
+      ratio=4
+      type="mem"
+    [[row.child]]
+      ratio=3
+      [[row.child.child]]
+        type="temp"
+      [[row.child.child]]
+        type="disk"
+[[row]]
+  ratio=30
+  [[row.child]]
+    type="net"
+  [[row.child]]
+    type="proc"
+    default=true
+```
+
+Valid types are:
+
+- `cpu`
+- `mem`
+- `proc`
+- `net`
+- `temp`
+- `disk`
+- `empty`
+
 ## Default config locations
 
 bottom will check specific locations by default for a config file. If no file is found, it will be created.