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| -rw-r--r-- | readme.org | 113 |
1 files changed, 61 insertions, 52 deletions
@@ -30,9 +30,8 @@ Xmobar is available from [[http://hackage.haskell.org/package/xmobar/][Hackage]] cabal install xmobar #+end_src -Xmobar versions >= 0.27 require GHC version >= 8.0.2. Due to an -intermittent bug in GHC, we recommend using either GHC 8.0.2, 8.2.2 or -8.6. +Starting with version 0.35.1, xmobar now requires at least GHC version +8.4.x. to build. See [[https://github.com/jaor/xmobar/issues/461][this issue]] for more information. See below for a list of optional compilation flags that will enable some optional plugins. For instance, to install xmobar with all the bells and @@ -50,8 +49,8 @@ code in a variety of ways: - From [[http://hackage.haskell.org/package/xmobar/][Hackage]]. Just download the latest release from xmobar's hackage page. -- From [[http://github.com/jaor/xmobar/][Github]]. You can also obtain a tarball in [[https://github.com/jaor/xmobar/downloads][Github's downloads - page]]. You'll find there links to each tagged release. +- From [[http://github.com/jaor/xmobar/][Github]]. There are also tarballs available for every tagged + release on [[https://github.com/jaor/xmobar/releases][Github's releases page]] - From the bleeding edge repo. If you prefer to live dangerously, just get the latest and greatest (and buggiest, I guess) using git: @@ -64,11 +63,18 @@ If you have cabal installed, you can now use it from within xmobar's source tree: #+begin_src shell - cabal install -fall_extensions + cabal install --flags="all_extensions" #+end_src -There is also a barebones =stack.yaml= file that will allow you to build -the xmobar executable with stances of the form: +There is also a barebones =stack.yaml= file that will allow you to +install the xmobar executable with + +#+begin_src shell + stack install +#+end_src + +See the =stack.yaml= file for the enabled extensions. You can also pass +them to =stack= directly: #+begin_src shell stack install --flag xmobar:all_extensions @@ -413,30 +419,29 @@ This is the list of command line options (the output of xmobar --help): Usage: xmobar [OPTION...] [FILE] Options: -h, -? --help This help - -V --version Show version information -v --verbose Emit verbose debugging messages - -r --recompile Force recompilation (for Haskell FILE) + -r --recompile Force recompilation + -V --version Show version information -f font name --font=font name Font name -N font name --add-font=font name Add to the list of additional fonts -w class --wmclass=class X11 WM_CLASS property -n name --wmname=name X11 WM_NAME property - -B bg color --bgcolor=bg color Background color. Default black - -F fg color --fgcolor=fg color Foreground color. Default grey - -A alpha --alpha=alpha Transparency: 0 is transparent - and 255 (the default) is opaque + -B bg color --bgcolor=bg color The background color. Default black + -F fg color --fgcolor=fg color The foreground color. Default grey + -i path --iconroot=path Root directory for icon pattern paths. Default '.' + -A alpha --alpha=alpha Transparency: 0 is transparent, 255 is opaque. Default: 255 -o --top Place xmobar at the top of the screen -b --bottom Place xmobar at the bottom of the screen - -p --position=position Specify position, same as in config file - -d --dock Try to start xmobar as a dock + -d --dock Don't override redirect from WM and function as a dock -a alignsep --alignsep=alignsep Separators for left, center and right text alignment. Default: '}{' -s char --sepchar=char Character used to separate commands in the output template. Default '%' -t template --template=template Output template - -i path --iconroot=path Default directory for icon pattern files -c commands --commands=commands List of commands to be executed -C command --add-command=command Add to the list of commands to be executed -x screen --screen=screen On which X screen number to start + -p position --position=position Specify position of xmobar. Same syntax as in config file Mail bug reports and suggestions to <mail@jao.io> #+end_src @@ -558,7 +563,7 @@ brightness value. Monitors accept a common set of arguments, described in the first subsection below. In addition, some monitors accept additional options that are specific to them. When specifying the list of arguments in your -configuration, the common options come first, followed by "--", followed +configuration, the common options come first, followed by =--=, followed by any monitor-specific options. These are the options available for all monitors below: @@ -770,7 +775,9 @@ something like: =windKmh= =visibility=, =skyCondition=, =weather=, =tempC=, =tempF=, =dewPointC=, =dewPointF=, =rh=, =pressure= - Default template: =<station>: <tempC>C, rh <rh>% (<hour>)= -- Retrieves weather information from http://tgftp.nws.noaa.gov. +- Retrieves weather information from http://tgftp.nws.noaa.gov. Here is + an [[https://tgftp.nws.noaa.gov/data/observations/metar/decoded/CYLD.TXT][example]], also showcasing the kind of information that may be + extracted. ** =WeatherX StationID SkyConditions Args RefreshRate= @@ -832,19 +839,21 @@ such as =("clear", "<icon=weather-clear.xbm/>")=. - Thresholds are expressed in Kb/s - Args: default monitor arguments, plus: - - =--rx-icon-pattern=: dynamic string for reception rate in =rxipat=. - - =--tx-icon-pattern=: dynamic string for transmission rate in - =txipat= - - =--devices=: comma-separated list of devices to show. +- =--rx-icon-pattern=: dynamic string for reception rate in =rxipat=. +- =--tx-icon-pattern=: dynamic string for transmission rate in =txipat= +- =--devices=: comma-separated list of devices to show. -- Variables that can be used with the =-t=/=--template= argument: =dev=, - =rx=, =tx=, =rxbar=, =rxvbar=, =rxipat=, =txbar=, =txvbar=, =txipat=. - Reception and transmission rates (=rx= and =tx=) are displayed in - Kbytes per second, and you can set the =-S= to "True" to make them - displayed with units (the string "Kb/s"). +- Variables that can be used with the =-t=/=--template= argument: + =dev=, =rx=, =tx=, =rxbar=, =rxvbar=, =rxipat=, =txbar=, =txvbar=, + =txipat=. + +Reception and transmission rates (=rx= and =tx=) are displayed in Kbytes +per second, and you can set the =-S= to "True" to make them displayed +with units (the string "Kb/s"). - Default template: =<dev>: <rx>KB|<tx>KB= - Example of usage of =--devices= option: - =["--", "--devices", "wlp2s0,enp0s20f41"]= + + =["--", "--devices", "wlp2s0,enp0s20f41"]= ** =Wireless Interface Args RefreshRate= @@ -1008,7 +1017,7 @@ such as =("clear", "<icon=weather-clear.xbm/>")=. 600 #+end_src - In the above example, the thresholds before the "--" separator affect + In the above example, the thresholds before the =--= separator affect only the =<left>= and =<leftbar>= fields, while those after the separator affect how =<watts>= is displayed. For this monitor, neither the generic nor the specific options have any effect on =<timeleft>=. @@ -1345,12 +1354,11 @@ than one battery. ** =Alsa Mixer Element Args= -Like [[#volume-mixer-element-args-refreshrate][Volume]], but with the following differences: +Like [[=Volume Mixer Element Args RefreshRate=][Volume]] but with the following differences: - Uses event-based refreshing via =alsactl monitor= instead of polling, - so it will refresh -instantly when there's a volume change, and won't use CPU until a change -happens. + so it will refresh instantly when there's a volume change, and won't + use CPU until a change happens. - Aliases to =alsa:= followed by the mixer name and element name separated by a colon. Thus, =Alsa "default" "Master" []= can be used as =%alsa:default:Master%=. @@ -1821,8 +1829,8 @@ will display "N/A" if for some reason the =date= invocation fails. input for Locale is not recommended. - Zone is the name of the TimeZone. It is assumed that the tz database - is stored in /usr/share/zoneinfo/. If "" is given as Zone, the default - system time is used. + is stored in =/usr/share/zoneinfo/=. If "" is given as Zone, the + default system time is used. - Sample usage: @@ -1896,14 +1904,14 @@ will display "N/A" if for some reason the =date= invocation fails. - Displays information from xmonad's =_XMONAD_LOG=. You can set this property by using =xmonadPropLog= as your log hook in xmonad's - configuration, as in the following example (more info [[http://xmonad.org/xmonad-docs/xmonad-contrib/XMonad-Hooks-DynamicLog.html][here]]): + configuration, as in the following example (more info [[https://hackage.haskell.org/package/xmonad-contrib-0.16/docs/XMonad-Hooks-DynamicLog.html][here]]): #+begin_src haskell main = do spawn "xmobar" - xmonad $ defaultConfig { - logHook = dynamicLogString defaultPP >>= xmonadPropLog - } + xmonad $ def + { logHook = dynamicLogString defaultPP >>= xmonadPropLog + } #+end_src This plugin can be used as a sometimes more convenient alternative to @@ -1922,9 +1930,9 @@ will display "N/A" if for some reason the =date= invocation fails. #+begin_src haskell myPP = defaultPP { ppTitle = xmobarStrip } - main = xmonad $ defaultConfig { - logHook = dynamicLogString myPP >>= xmonadPropLog - } + main = xmonad $ def + { logHook = dynamicLogString myPP >>= xmonadPropLog + } #+end_src ** =HandleReader Handle Alias= @@ -2061,14 +2069,15 @@ Writing a plugin for xmobar should be very simple. You need to create a data type with at least one constructor. Next you must declare this data type an instance of the =Exec= class, by -defining the 1 needed method (alternatively =start= or =run=) and 2 -optional ones (alias and rate): +defining the 1 needed method (alternatively =start= or =run=) and 3 +optional ones (=alias=, =rate=, and =trigger=): #+begin_src haskell - start :: e -> (String -> IO ()) -> IO () - run :: e -> IO String - rate :: e -> Int - alias :: e -> String + start :: e -> (String -> IO ()) -> IO () + run :: e -> IO String + rate :: e -> Int + alias :: e -> String + trigger :: e -> (Maybe SignalType -> IO ()) -> IO () #+end_src =start= must receive a callback to be used to display the =String= @@ -2079,9 +2088,9 @@ an example. =run= can be used for simpler plugins. If you define only =run= the plugin will be run every second. To overwrite this default you just need to implement =rate=, which must return the number of tenth of seconds -between every successive runs. See =examples/xmobar.hs= for an example -of a plugin that runs just once, and =src/Xmobar/Plugins/Date.hs= for -one that implements =rate=. +between every successive runs. See [[https://github.com/jaor/xmobar/blob/master/examples/xmobar.hs][examples/xmobar.hs]] for an example of +a plugin that runs just once, and [[https://github.com/jaor/xmobar/blob/master/src/Xmobar/Plugins/Date.hs][src/Xmobar/Plugins/Date.hs]] for one +that implements =rate=. Notice that Date could be implemented as: |