Merge branch 'master' into staging_065

Conflicts were:
- README.md: Two commits targeted the brightness table. #781 from
14. April 2018 on master and #684 from 05. December 2017 on next.
- powerlevel9k.zsh-theme: Two commits targeted the rbenv segment. Both
achieve the same thing: To show the Ruby version number always. #795 on
next from 14. April 2018 and #610 on master from 28. September 2017. I
went with #795 here as this - although being newer - is the one on
master, and that should be more stable.

README.md

@@ -130,6 +130,7 @@ The segments that are currently available are:
     * [`chruby`](#chruby) - Ruby environment information using `chruby` (if one is active).
     * [`rbenv`](#rbenv) - Ruby environment information using `rbenv` (if one is active).
     * [`rspec_stats`](#rspec_stats) - Show a ratio of test classes vs code classes for RSpec.
+    * `rvm` - Ruby environment information using `$GEM_HOME` and `$MY_RUBY_HOME` (if one is active).
 * **Rust Segments:**
     * `rust_version` - Display the current rust version and [logo](https://www.rust-lang.org/logos/rust-logo-blk.svg).
 * **Swift Segments:**
@@ -213,8 +214,10 @@ You can also change the battery icon automatically depending on the battery
 level. This will override the default battery icon. In order to do this, you
 need to define the `POWERLEVEL9k_BATTERY_STAGES` variable.
 
-| Variable | Default Value | Description |
-| `POWERLEVEL9K_BATTERY_STAGES`|Unset|A string or array, which each index indicates a charge level.|
+
+| Variable                      | Default Value | Description                                                   |
+|-------------------------------|---------------|---------------------------------------------------------------|
+| `POWERLEVEL9K_BATTERY_STAGES` | Unset         | A string or array, which each index indicates a charge level. |
 
 Powerlevel9k will use each index of the string or array as a stage to indicate battery
 charge level, progressing from left to right. You can provide any number of
@@ -254,10 +257,12 @@ As with the battery stages, you can use any number of colors and Powerlevel9k
 will automatically use all of them appropriately.
 
 Some example settings:
-|Brightness|Possible Array|
-|Bright Colors|(red1 orangered1 darkorange orange1 gold1 yellow1 yellow2 greenyellow chartreuse1 chartreuse2 green1)|
-|Normal Colors|(red3 darkorange3 darkgoldenrod gold3 yellow3 chartreuse2 mediumspringgreen green3 green3 green4 darkgreen)|
-|Subdued Colors|(darkred orange4 yellow4 yellow4 chartreuse3 green3 green4 darkgreen)|
+
+| Brightness     | Possible Array                                                                                                |
+|----------------|---------------------------------------------------------------------------------------------------------------|
+| Bright Colors  | `(red1 orangered1 darkorange orange1 gold1 yellow1 yellow2 greenyellow chartreuse1 chartreuse2 green1)`       |
+| Normal Colors  | `(red3 darkorange3 darkgoldenrod gold3 yellow3 chartreuse2 mediumspringgreen green3 green3 green4 darkgreen)` |
+| Subdued Colors | `(darkred orange4 yellow4 yellow4 chartreuse3 green3 green4 darkgreen)`                                       |
 
 ##### command_execution_time
 
@@ -538,6 +543,10 @@ Variable | Default Value | Description |
 |----------|---------------|-------------|
 |`POWERLEVEL9K_RBENV_ALWAYS`|'false'|Always show the `rbenv` segment, even if the local version matches the global.|
 
+| Variable | Default Value | Description |
+|----------|---------------|-------------|
+|`POWERLEVEL9K_RBENV_PROMPT_ALWAYS_SHOW`|`false`|Set to true if you wish to show the rbenv segment even if the current Ruby version is the same as the global Ruby version|
+
 ##### rspec_stats
 
 See [Unit Test Ratios](#unit-test-ratios), below.

powerlevel9k.zsh-theme

@@ -895,7 +895,9 @@ prompt_dir() {
         fi
       ;;
       *)
-        current_path="$(print -P "%$((POWERLEVEL9K_SHORTEN_DIR_LENGTH+1))(c:$POWERLEVEL9K_SHORTEN_DELIMITER/:)%${POWERLEVEL9K_SHORTEN_DIR_LENGTH}c")"
+        if [[ $current_path != "~" ]]; then
+          current_path="$(print -P "%$((POWERLEVEL9K_SHORTEN_DIR_LENGTH+1))(c:$POWERLEVEL9K_SHORTEN_DELIMITER/:)%${POWERLEVEL9K_SHORTEN_DIR_LENGTH}c")"
+        fi
       ;;
     esac
   fi
@@ -1229,18 +1231,19 @@ prompt_ram() {
   "$1_prompt_segment" "$0" "$2" "yellow" "$DEFAULT_COLOR" "$(printSizeHumanReadable "$ramfree" $base)" 'RAM_ICON'
 }
 
-################################################################
-# Segment to display rbenv information
-set_default POWERLEVEL9K_RBENV_ALWAYS false
+
+set_default POWERLEVEL9K_RBENV_PROMPT_ALWAYS_SHOW false
+# rbenv information
 prompt_rbenv() {
-  if which rbenv 2>/dev/null >&2; then
+  if command which rbenv 2>/dev/null >&2; then
     local rbenv_version_name="$(rbenv version-name)"
     local rbenv_global="$(rbenv global)"
 
+
     # Don't show anything if the current Ruby is the same as the global Ruby
-    # unless `POWERLEVEL9K_RBENV_ALWAYS` is set.
-    if [[ $POWERLEVEL9K_RBENV_ALWAYS == true || $rbenv_version_name != $rbenv_global ]];then
-      "$1_prompt_segment" "$0" "$2" "red" "$DEFAULT_COLOR" "$rbenv_version_name" 'RUBY_ICON'
+    # unless `POWERLEVEL9K_RBENV_PROMPT_ALWAYS_SHOW` is set.
+    if [[ $rbenv_version_name == $rbenv_global && "$POWERLEVEL9K_RBENV_PROMPT_ALWAYS_SHOW" = false ]]; then
+      return
     fi
   fi
 }
@@ -1337,8 +1340,13 @@ prompt_status() {
   local ec
 
   if [[ $POWERLEVEL9K_STATUS_SHOW_PIPESTATUS == true ]]; then
-    ec_text=$(exit_code_or_status "${RETVALS[1]}")
-    ec_sum=${RETVALS[1]}
+    if (( $#RETVALS > 1 )); then
+      ec_text=$(exit_code_or_status "${RETVALS[1]}")
+      ec_sum=${RETVALS[1]}
+    else
+      ec_text=$(exit_code_or_status "${RETVAL}")
+      ec_sum=${RETVAL}
+    fi
 
     for ec in "${(@)RETVALS[2,-1]}"; do
       ec_text="${ec_text}|$(exit_code_or_status "$ec")"

test/segments/dir.spec

@@ -46,6 +46,27 @@ function testTruncateFoldersWorks() {
   unset POWERLEVEL9K_SHORTEN_STRATEGY
 }
 
+function testTruncateFolderWithHomeDirWorks() {
+  POWERLEVEL9K_SHORTEN_DIR_LENGTH=1
+  CURRENT_DIR=$(pwd)
+
+  cd ~
+  FOLDER="powerlevel9k-test-${RANDOM}"
+  mkdir -p $FOLDER
+  cd $FOLDER
+  # Switch back to home folder as this causes the problem.
+  cd ..
+
+  assertEquals "%K{blue} %F{black}~ %k%F{blue}%f " "$(build_left_prompt)"
+
+  rmdir $FOLDER
+  cd ${CURRENT_DIR}
+
+  unset CURRENT_DIR
+  unset FOLDER
+  unset POWERLEVEL9K_SHORTEN_DIR_LENGTH
+}
+
 function testTruncateMiddleWorks() {
   POWERLEVEL9K_SHORTEN_DIR_LENGTH=2
   POWERLEVEL9K_SHORTEN_STRATEGY='truncate_middle'