scwrypts/zsh/lib/utils/io.usage.zsh
yage a739d3b5a2 v4.0.0
=====================================================================

Big day! V4 is finally live. This INCLUDES some BREAKING CHANGES to ZSH
TYPE scwrypts! Please refer to the readme for upgrade details
                     (more specifically docs/upgrade/v3-to-v4.md)

Upgrade is SUPER EASY, so please take the time to do so.

--- New Features ----------------------------------------------------

- zsh type scwrypts have an upgraded runstring to improve context setup
  and simplicity to the scwrypt-writer

- scwrypts now publishes the package (scwrypts) to PyPi; this provides a
  simple way to invoke scwrypts from python-based environments as well
  as the entire scwrypts python library suite

  pip install scwrypts

- scwrypts now publishes the package (scwrypts) to npm; this provides a
  simple way to invoke scwrypts from nodesjs environments

  npm install scwrypts

--- Bug Fixes -------------------------------------------------------

- scwrypts runner prompts which use the zshbuiltin "read" now
  appropriately read input from tty, pipe, files, and user input

- virtualenv refresh now loads and prepares the scwrypts virtual
  environments correctly

--- Changes ---------------------------------------------------------

- created the (-v, --log-level) scwrypts arguments as improvements of
  and replacements to the --verbose and --no-log flags
     - (-n) is now an alias for (--log-level 0)
     - (--no-log) is the same as (-n) for compatibility, but will be removed in 4.2

- zsh/lib/utils/io print functions now *interact with log-level* various
  log levels will now only display the appropriate console prints for
  the specified log level

- zsh/lib/utils/io:INFO has been renamed to DEBUG to align with
  log-level output; please use DEBUG for debug messages and REMINDER for
  important user messages

- created zsh/lib/utils/io:FZF_USER_INPUT as a *drop-in replacement* for
  the confusing FZF_HEAD and FZF_TAIL commands. Update by literally
  changing any instances of FZF_HEAD or FZF_TAIL with FZF_USER_INPUT
     - FZF_HEAD and FZF_TAIL will be removed in 4.2

- zsh/lib/utils/io:READ (and other zshbuiltin/read-based prompts) now
  accept a --force-user-input flag in case important checks should
  require an admin's approval. This flag will ensure that piped input
  and the `scwrypts -y` flag are ignored for the single prompt.

- zsh/lib/utils/color has been updated to use color names which match
  the ANSI color names

- zsh/hello-world has been reduced to a minimal example; this is to
  emphasize ease-of-use with v4

- zsh/sanity-check is a scwrypts/run testing helper and detailed
  starting reference (helpful since hello-world is now minimal)

- various refactor, updates, and improvements to the scwrypts runner

- migrated all zsh scwrypts and plugins to use v4 runner syntax
     - zsh
     - plugins/kubectl
     - plugins/ci

- refactored py/lib into py/lib/scwrypts (PyPi)
2024-02-20 23:51:32 -07:00

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USAGE() { # formatter for USAGE variable
[ ! $USAGE ] && return 0
local USAGE_LINE=$(echo $USAGE | grep -i '^[ ]*usage *:' | sed 's/^[ ]*//')
[ $USAGE__usage ] && echo $USAGE_LINE | grep -q 'usage: -' \
&& USAGE_LINE=$(echo $USAGE_LINE | sed "s/usage: -/usage: $USAGE__usage/")
[ $__SCWRYPT ] \
&& USAGE_LINE=$(
echo $USAGE_LINE \
| sed "s;^[^:]*:;& scwrypts $SCWRYPT_NAME --;" \
| sed 's/ \{2,\}/ /g; s/scwrypts -- scwrypts/scwrypts/' \
)
local THE_REST=$(echo $USAGE | grep -vi '^[ ]*usage *:' )
local DYNAMIC_USAGE_ELEMENT
#
# create dynamic usage elements (like 'args') by defining USAGE__<element>
# then using the syntax "<element>: -" in your USAGE variable
#
# e.g.
#
# USAGE__args="
# subcommand arg 1 arg 1 description
# subcommand arg 2 some other description
# "
#
# USAGE="
# usage: some-command [...args...]
#
# args: -
# -h, --help some arguments are applicable everywhere
# "
#
for DYNAMIC_USAGE_ELEMENT in $(echo $THE_REST | sed -n 's/^\([^:]*\): -$/\1/p')
do
DYNAMIC_USAGE_ELEMENT_TEXT=$(eval echo '$USAGE__'$DYNAMIC_USAGE_ELEMENT)
#[ $DYNAMIC_USAGE_ELEMENT_TEXT ] || continue
case $DYNAMIC_USAGE_ELEMENT in
description )
DYNAMIC_USAGE_ELEMENT_TEXT=$(echo "$DYNAMIC_USAGE_ELEMENT_TEXT" | perl -p0e 's/^[\n\s]+//')
DYNAMIC_USAGE_ELEMENT_TEXT="$__YELLOW\\033[03m$DYNAMIC_USAGE_ELEMENT_TEXT\\033[0m"
;;
* )
DYNAMIC_USAGE_ELEMENT_TEXT=$(echo $DYNAMIC_USAGE_ELEMENT_TEXT | sed 's/[^ ]/ &/')
;;
esac
THE_REST=$(echo $THE_REST | perl -pe "s$DYNAMIC_USAGE_ELEMENT: -$DYNAMIC_USAGE_ELEMENT:\n$DYNAMIC_USAGE_ELEMENT_TEXT\n\n")
done
# allow for dynamic 'description: -' but delete the 'description:' header line
THE_REST=$(echo $THE_REST | sed '/^[ ]*description:$/d')
echo "$__BLUE$USAGE_LINE$__COLOR_RESET\n\n$THE_REST" \
| sed "s/^\t\+//; s/\s\+$//; s/^\\s*$//;" \
| sed '/./,$!d; :a; /^\n*$/{$d;N;ba;};' \
| perl -p0e 's/\n{2,}/\n\n/g' \
| perl -p0e 's/:\n{2,}/:\n/g' \
| perl -p0e 's/([a-z]+:)\n([a-z]+:)/\2/g' \
>&2
}