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This drops a lot of code and even though we are using a common function,
the specification of only the needed things keeps it very efficient and
even more efficient in memory and time than the previous solution.
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There was a long tinkering process at farbfeld about this, but the sad
truth is that it's the only way to make the Makefile truly portable.
Listing it just as
$(COM:=.o): config.mk $(REQ:=.h)
omits the dependency on the c-file itself, which incurs that strictly
speaking the object file is not depending on the source file, which is
nonsense.
You don't see strictly Posix compliant Makefiles around very often and
most use nasty GNU-extensions everywhere. It is a good idea to go ahead
as a fitting example and show how to write them portably.
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On OpenBSD the backlight percentage cannot be retrieved in a simple way.
The only two solutions we are aware of for now are:
- reading from /dev/ttyC0: which isn't possible without changing
permissions or running slstatus as root
- linking against xcb-xrandr: which is bloat and does not work in every
case appearently
This reverts commit 37724ac2c3f496f4736223d0d8e5d8fecb933590 for now.
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- Get rid of camel-casing
- Don't use all-caps for variable names
- use LEN()-macro
- use strncmp() rather than strstr() for prefix-checking
- clean up the tokenizer-loop and don't use copies
- make the loop more readable by separating different breaking
conditions
- stricter error-checking and cleanup
- store the layout directly with bprintf rather than having
a separate buffer
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Adding a new keymap component that will
indicate the current keyboard layout (language)
and variant if any was set. I use the
standard X11 XKB APIs to retrieve and parse
the xkb_symbols set with setxkbmap.
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Even if we extend the flag to be an n-flag with a numerical input, we
already have other Unix-tools to take care of us much more flexibly,
e.g. with head(1) you can easily get the first 10 outputs with
slstatus -s | head -n 10,
but also e.g. discard the first one and then get the consecutive 10
outputs.
For the X11-root-window-name, you can limit the runtime with timeout(1)
or a comparable solution.
This reverts commit fa8b939990ed0648f99b0cbeba4efed807160db3.
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This way cases like
$ slstatus -s > /dev/full
are properly caught and the program terminated with the proper return
code.
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At the moment linux only, but will add support for OpenBSD as well.
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Thanks to Hiltjo
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Add a return value so we are able to check any errors and actually fail
when there has been a critical error instead of carrying on uselessly.
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It is not necessary to copy memory or anything. Just keep a pointer to
the active prefix-array and assign the length of the arrays to a
variable.
Make the code more readable by using a switch, be more strict when an
invalid base is passed to it and fix a small oversight in the bottom of
the code where the base 1024 was forgotten to generalized.
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Now only one function, fmt_human, takes an additional argument "base".
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In a later commit something like that will be enabled for every
component
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- Line length
- Spacing and indentation
- No explicit checks for NULL
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This is a first step to decouple formatting from information because of
two reasons:
1. The components should only gather and return the values by design
2. Fine grained user control should be a focus
Scaling will be implemented in a different way in a later commit.
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On some laptops (mostly thinkpads), the remaining time may be
expressed in µWh using energy_now and power_now files rather than µAh
for charge_now and current_now.
Add pick function to conditionally select appropriate one.
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free the interface list before returning from the function
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These functions take the raw number and a unit and automatically
print it out "scaled down" to a proper SI-prefix, for powers of 2
and 10 respectively.
Apply them to the 2-power cases and keep the 10-power for a later
commit.
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Units should be added to the corresponding numbers
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First dividing by interval before multiplying with 1000 decreases the
precision by +-(interval - 1) * 1000, as interval arithmetic always
applies the Gauß-function to the result.
This is not necessary and simply reordering the operations mitigates
this.
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Within the components, snprintf() was unchecked and had inefficient
calls in some places.
We implement esnprintf() that does all the dirty laundry for us
and use it exclusively now.
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