Powerline prompt section to display last command duration

Human display of the last command duration, if threshold exceeded

Add configurable threshold for prompt duration display (5s)

Nicer format for the time

lib/utilities.bash

@@ -162,3 +162,20 @@ _bash-it-component-item-is-disabled() {
   local item="$2"
   _bash-it-component-help "${component}" | $(_bash-it-grep) -E -v '\[x\]' |  $(_bash-it-grep) -E -q -- "^${item}\s"
 }
+
+# Given a number of seconds, transforms it into a human readable duration
+_bash-it-human-duration() {
+  local T=$1
+  if [ "$T" -lt 60 ]; then
+    printf '%ds' "$T"
+    return
+  fi
+  local D=$(( T / 60 / 60 / 24 ))
+  local H=$(( T / 60 / 60 % 24 ))
+  local M=$(( T / 60 % 60 ))
+  local S=$(( T % 60 ))
+  (( $D > 0 )) && printf '%d day(s), ' $D
+  (( $D > 0 || $H > 0 )) && printf '%02dh:' $H
+  (( $D > 0 || $H > 0 || $M > 0 )) && printf '%02dm:' $M
+  printf '%02ds' $S
+}

plugins/available/cmd-duration.plugin.bash

@@ -0,0 +1,8 @@
+cite about-plugin
+about-plugin 'keep track of the moment when the last command started, to be able to compute its duration'
+
+preexec () {
+  export BASH_IT_LAST_COMMAND_STARTED=${EPOCHSECONDS:-$(perl -e 'print time()')}
+}
+
+preexec_install;

test/lib/utilities.bats

@@ -91,3 +91,44 @@ function item_disabled() {
   run has_match xyz "${fruits[@]}"
   assert_line -n 0 ''
 }
+
+@test "_bash-it-human-duration() - under a minute only displays second count" {
+  run _bash-it-human-duration 2
+  [ "$output" = "2s" ]
+
+  run _bash-it-human-duration 30
+  [ "$output" = "30s" ]
+
+  run _bash-it-human-duration 59
+  [ "$output" = "59s" ]
+}
+
+@test "_bash-it-human-duration() - over a minute, but under an hour displays mm:ss" {
+  run _bash-it-human-duration 60
+  [ "$output" = "01m:00s" ]
+
+  run _bash-it-human-duration 83
+  [ "$output" = "01m:23s" ]
+
+  run _bash-it-human-duration 3599
+  [ "$output" = "59m:59s" ]
+}
+
+@test "_bash-it-human-duration() - over an hour, displays in the hh:mm:ss format" {
+  run _bash-it-human-duration 3600
+  [ "$output" = "01h:00m:00s" ]
+
+  run _bash-it-human-duration 3700
+  [ "$output" = "01h:01m:40s" ]
+
+  run _bash-it-human-duration $(( 3600 * 24 - 1 ))
+  [ "$output" = "23h:59m:59s" ]
+}
+
+@test "_bash-it-human-duration() - duration over 1 day - starts displaying number of days as well" {
+  run _bash-it-human-duration 86400
+  [ "$output" = "1 day(s), 00h:00m:00s" ]
+
+  run _bash-it-human-duration $(( 3600 * 24 * 3 + 3600 * 5 + 60 * 7 + 23 ))
+  [ "$output" = "3 day(s), 05h:07m:23s" ]
+}

themes/powerline-multiline/powerline-multiline.theme.bash

@@ -82,6 +82,9 @@ SHLVL_THEME_PROMPT_CHAR=${POWERLINE_SHLVL_CHAR:="§"}
 DIRSTACK_THEME_PROMPT_COLOR=${POWERLINE_DIRSTACK_COLOR:=${CWD_THEME_PROMPT_COLOR}}
 DIRSTACK_THEME_PROMPT_CHAR=${POWERLINE_DIRSTACK_CHAR:="←"}
 
+DURATION_THEME_PROMPT_COLOR=${POWERLINE_DURATION_COLOR:=124}
+DURATION_THRESHOLD=${POWERLINE_DURATION_THRESHOLD:=5}
+
 HISTORY_NUMBER_THEME_PROMPT_COLOR=${POWERLINE_HISTORY_NUMBER_COLOR:=0}
 HISTORY_NUMBER_THEME_PROMPT_CHAR=${POWERLINE_HISTORY_NUMBER_CHAR:="#"}
 

themes/powerline-naked/powerline-naked.theme.bash

@@ -77,6 +77,9 @@ SHLVL_THEME_PROMPT_CHAR=${POWERLINE_SHLVL_CHAR:="§"}
 DIRSTACK_THEME_PROMPT_COLOR=${POWERLINE_DIRSTACK_COLOR:=${CWD_THEME_PROMPT_COLOR}}
 DIRSTACK_THEME_PROMPT_CHAR=${POWERLINE_DIRSTACK_CHAR:="←"}
 
+DURATION_THEME_PROMPT_COLOR=${POWERLINE_DURATION_COLOR:=124}
+DURATION_THRESHOLD=${POWERLINE_DURATION_THRESHOLD:=5}
+
 HISTORY_NUMBER_THEME_PROMPT_COLOR=${POWERLINE_HISTORY_NUMBER_COLOR:=254}
 HISTORY_NUMBER_THEME_PROMPT_CHAR=${POWERLINE_HISTORY_NUMBER_CHAR:="#"}
 

themes/powerline-plain/powerline-plain.theme.bash

@@ -74,6 +74,9 @@ SHLVL_THEME_PROMPT_CHAR=${POWERLINE_SHLVL_CHAR:="§"}
 DIRSTACK_THEME_PROMPT_COLOR=${POWERLINE_DIRSTACK_COLOR:=${CWD_THEME_PROMPT_COLOR}}
 DIRSTACK_THEME_PROMPT_CHAR=${POWERLINE_DIRSTACK_CHAR:="←"}
 
+DURATION_THEME_PROMPT_COLOR=${POWERLINE_DURATION_COLOR:=124}
+DURATION_THRESHOLD=${POWERLINE_DURATION_THRESHOLD:=5}
+
 HISTORY_NUMBER_THEME_PROMPT_COLOR=${POWERLINE_HISTORY_NUMBER_COLOR:=0}
 HISTORY_NUMBER_THEME_PROMPT_CHAR=${POWERLINE_HISTORY_NUMBER_CHAR:="#"}
 

themes/powerline/powerline.base.bash

@@ -188,6 +188,23 @@ function __powerline_dirstack_prompt {
   fi
 }
 
+function __powerline_duration_prompt {
+  if [ -z $BASH_IT_LAST_COMMAND_STARTED ]; then
+    # either the duration plugin was not started,
+    # or this is the first time the prompt is displayed,
+    # therefore no command has run yet
+    return
+  fi
+
+  local cmd_end=${EPOCHSECONDS:-$(perl -e 'print time()')}
+  (( duration_seconds = cmd_end - BASH_IT_LAST_COMMAND_STARTED ))
+
+  if [ $duration_seconds -ge $DURATION_THRESHOLD ]; then
+    local human_duration=$(_bash-it-human-duration "$duration_seconds")
+    echo "${human_duration}|${DURATION_THEME_PROMPT_COLOR}"
+  fi
+}
+
 function __powerline_history_number_prompt {
   echo "${HISTORY_NUMBER_THEME_PROMPT_CHAR}\!|${HISTORY_NUMBER_THEME_PROMPT_COLOR}"
 }

themes/powerline/powerline.theme.bash

@@ -78,6 +78,9 @@ SHLVL_THEME_PROMPT_CHAR=${POWERLINE_SHLVL_CHAR:="§"}
 DIRSTACK_THEME_PROMPT_COLOR=${POWERLINE_DIRSTACK_COLOR:=${CWD_THEME_PROMPT_COLOR}}
 DIRSTACK_THEME_PROMPT_CHAR=${POWERLINE_DIRSTACK_CHAR:="←"}
 
+DURATION_THEME_PROMPT_COLOR=${POWERLINE_DURATION_COLOR:=124}
+DURATION_THRESHOLD=${POWERLINE_DURATION_THRESHOLD:=5}
+
 HISTORY_NUMBER_THEME_PROMPT_COLOR=${POWERLINE_HISTORY_NUMBER_COLOR:=0}
 HISTORY_NUMBER_THEME_PROMPT_CHAR=${POWERLINE_HISTORY_NUMBER_CHAR:="#"}