1.10.0 - support more boards, especially w/ UF2 bootloaders; update sample.auniter.ini

• 1.10.0 (2023-06-18)
  • Add --clean flag to auniter.sh
    • tells the Arduino-CLI tool to clean its build cache.
    • Sometimes it caches too aggressively and does not detect changes to
      third party Core files.
  • Update --port {value} flag of auniter.sh
    • Allow none value to allow an ATtiny85 to be programmed
      through USBtinyISP instead of the serial port.
    • Allow glob such as /dev/ttyACM* or just ACM*.
      • Tells the script to select the first /dev/ttyACM* port that
        matches the glob.
      • Added to support the Adafruit ItsyBitsy M4 which seems to have a
        flaky UF2 bootloader such that new firmware is flashed at
        /dev/ttyACM0, but upon reboot, the device appears at
        /dev/ttyACM1, which causes lots of confusion.
  • Add --delay N flag to auniter.sh
    • Some boards, especially those using UF2 bootloaders, take too much
      time to reboot, causing the serial monitor to fail with an error
      because there is no serial port ready yet.
    • This flag allows a short delay before the serial monitor is fired up.
  • Update sample.auniter.ini
    • Update nodemcuv2 configuration to be compatible with latest
      ESP8266 core software.
    • Add additional boards, e.g. SparkFun Pro Micro, Arduino Pro Mini,
      Seeeduino XIAO M0, Adafruit ItsyBitsy M0 and M4, Teensy 3.2
  • Support only a single board in a single auniter.sh command
    • Previously allows a comma-separate list of {board}:{port} arguments
      e.g. auniter.sh test nano:USB0,esp8266:USB1,esp32:USB2 SampleTest.ino.
    • This feature was never reliable because the USB port of a
      microcontroller would be randomly changed by the host operating
      system.
    • And the workflow of compiling the firmware, flashing it, and running
      the unit tests was far too slow, and would sometimes fail for no
      apparent reason.

1.9.1 - support -D flag for ArduinoCLI, enable compiler warnings on ArduinoCLI

• 1.9.1 (2021-05-21)
  • Support -D MACRO=value when using --cli flag to invoke the ArduinoCLI
    using the new --build-property flag.
  • Add --warnings all flag when using ArduinoCLI to enable all compiler
    warnings.

v1.9 - expose -D flag; add 'upmon --ouput file' flag

• 1.9 (2020-12-03)
  • Add -D MACRO=value flag which adds additional C-Preprocessor macros
    when using verify, upload, upmon and test subcommands. Multiple
    -D flags will define multiple MACROs.
  • Add --output filename flag (short form -o) to the upmon command. It
    captures the serial output of the microcontroller and saves it to the
    given filename. By default, the process ends after a 10 second timeout.
    However, if --eof string flag is given, the script looks for the given
    string and terminates just after it is detected in the serial output. The
    string itself is saved into the file. The --output flag could be
    useful in the monitor command as well, but it is not clear that it would
    be useful, so for the lack of infinite time, I have not implemented it.

1.8 - multiple locations of auniter.ini file, arduino-cli integration, initial MacOS support

• 1.8 (2020-09-04)
  • Auto-detect the location of 'auniter.ini' in the following order:
    --config flag, the current directory, any parent directory,
    $HOME/auniter.ini, and finally $HOME/.auniter.ini.
  • Add config command to print the auto-detected auniter.ini file.
  • Add compile command as an alias for verify, because the Arduino-CLI
    binary uses compile instead of verify.
  • Add mon command as an alias for monitor, because we often want
    to run the 'monitor' command after an 'upmon', and this makes it
    easier to retrieve the previous 'upmon' command from the bash history and
    just remove the 'up'.
  • Add support for arduino-cli
    using the AUNITER_ARDUINO_CLI environment variable. The preprocessor
    directive in the auniter.ini must not contain a string due to a bug in
    arduino-cli.
  • Add better support and testing on MacOS 10.14 (Mojave).

v1.7.2 - add --preserve flag, autodetect *.ino file in current directory

• 1.7.2 (2020-08-21)
  • Look for a *.ino file in the current directory if no sketch file is
    specified for auniter.sh.
  • Add --preserve flag to auniter.sh to preserve compiler files, to allow
    dissembly by avr-objdump.

1.7.1 - add SparkFun boards, fix error handling, better README summary section

• 1.7.1 (2018-10-17)
  • Add SparkFun boards.
  • Fix incorrect handling of run-arduino.sh errors, now stops after an error.
  • Update instructions for installing 3rd party boards into the IDE used
    by Jenkins.
  • Write better summary section of README.md.

1.7 - use environments as built targets instead of board aliases

• 1.7 (2018-09-16)
  • Remove --board, --boards, and --ports flags to simplify the auniter.sh
    script.
  • Change name of auniter.conf to auniter.ini because tools (e.g. vim)
    are able to recoginize INI file format and handle them better
    (e.g. syntax highlighting).
  • Change the compile target from "board aliases" to "environments", where
    the "environment" is defined by a section of auniter.ini file whose name
    has the form [env:NAME].
  • Add port_timeout parameters to the [auniter] section.
  • Add locking and 'board' parameters to the [env:NAME] section.
  • Add support for 'preprocessor' parameter in '[env:NAME]' section
    which defines a space-separated list of C-preprocessor macros in the
    form of MACRO MACRO=value MACRO="string value".
  • Remove overly flexible --pref flag, replace with semantically specific
    flags (e.g. --sketchbook, --preprocessor).
  • Remove --monitor flag from run_arduino.sh. Was already replaced with
    shell exec to a user-definable terminal program. Add example
    configurations for 'picocomandmicrocom` terminal programs.
  • Add auniter envs subcommand which lists the environments defined in the
    auniter ini file.
  • Changed name of --skip_if_no_port flag to --skip_missing_port.
  • Add documentation of the recommended structure of config.h file to
    support multiple environments using both Arduino IDE and AUniter tools.

1.6 - add 'monitor' and 'upmon' subcommands

• 1.6 (2018-09-11)
  • Support 'monitor' subcommand using an external serial port terminal
    (e.g. picocom).
  • Add 'upmon' subcommand, a combination of 'upload' and 'monitor'.
  • Add '[auniter] baud' parameter to control default baud rate of port.

1.5 - simplify auniter.sh interactive flags by using subcommands

• 1.5 (2018-09-03)
  • Use subcommands instead of flags in auniter.sh to simplify the
    common interactive use cases.

1.4.1 - fix default locking, enable short port names

• 1.4.1 (2018-09-03)
  • Fix bug which disabled --locking by default.
  • Allow serial port specifier in --boards flag to omit "/dev/tty" prefix.