mirror of
https://github.com/Llewellynvdm/Tomb.git
synced 2024-11-22 12:35:13 +00:00
133 lines
4.0 KiB
Plaintext
133 lines
4.0 KiB
Plaintext
Style guidelines
|
|
===============
|
|
|
|
Indentation
|
|
-----------
|
|
|
|
Code must be indented using four spaces.
|
|
In vim, this can be accomplished using
|
|
|
|
set shiftwidth=4
|
|
set expandtab
|
|
|
|
Naming
|
|
------
|
|
|
|
Short version: $GLOBAL, $local, func_name()
|
|
|
|
Variables must be declared and scoped.
|
|
|
|
GLOBAL_VARIABLES # are uppercase unless there's a good reason not to.
|
|
# (e.g., path as a special meaning in Zsh)
|
|
|
|
local samplevar # are lowercase and scoped to the function # name
|
|
# should be readable. Do not make unnecessary
|
|
# shortcuts that would impede others to read fluidly
|
|
|
|
# Please comment your functions before coding them: it helps
|
|
# clear the mind on the objective. If it does too much, you
|
|
# probably want to split it. Any reusable code should be
|
|
# isolated.
|
|
any_function() {}
|
|
|
|
_internals() {} # Prepend an _ if the function is clearly internal,
|
|
# that is, if it's only called within the scope of
|
|
# another function.
|
|
|
|
|
|
Sample code:
|
|
|
|
# Sample public command.
|
|
#
|
|
# It shows developers how to write readable code.
|
|
# Returns 0 on success, or fails
|
|
public_command() {
|
|
local tombpath="$1" # First argument is the path to the tomb
|
|
local orientation="${2:-South}" # Second optional argument
|
|
local something is happening
|
|
|
|
[[ -z $tombpath ]] && {
|
|
_failure "Usage public_command tombpath [orientation=South]" }
|
|
|
|
case $orientation in
|
|
(South|North|East|West) break;;
|
|
(*)
|
|
_failure "orientation must be one of South, North, East, or West."
|
|
;;
|
|
esac
|
|
|
|
_check_swap # Ensure the available memory is safe
|
|
_plot $tombpath # Set TOMB{PATH,DIR,FILE,NAME}
|
|
|
|
for is in $TOMBLOOPDEVS; do
|
|
[[ -k $is ]] && {
|
|
happening+="$is "
|
|
} || {
|
|
something+="$is "
|
|
}
|
|
done
|
|
|
|
_message "You gotta sort your bones."
|
|
|
|
return 0
|
|
}
|
|
|
|
|
|
Reporting to the user
|
|
---------------------
|
|
|
|
There are some nifty messaging functions to use. They all come with
|
|
shortcuts that you can use during development or for temporary
|
|
messages. The long name is to be used for translatable strings.
|
|
|
|
They display formatted messages, using colors when available.
|
|
|
|
DEBUG=1 make the _verbose messages visible.
|
|
QUIET=1 suppresses all messages (but the _verbose messages if DEBUG=1).
|
|
|
|
Here is the deal:
|
|
|
|
Name (Shortcut) Return When to use
|
|
=================================================================================
|
|
_verbose (xxx) You need to check the current state of the program.
|
|
|
|
_message (say) You want to tell the user about what's going on.
|
|
You can pass -n (shortcut: act) for inline messages.
|
|
|
|
_warning (no) You want to inform the user about an error condition.
|
|
|
|
_success (yes) You want to tell the user about a successful result.
|
|
|
|
_failure (die) exit 1 You want to exit the program with a fatal error.
|
|
You may pass a different exit code as exitval.
|
|
|
|
All messaging function take a single "message" argument.
|
|
_failure takes an exit code as an optional exitval environment variable.
|
|
|
|
Additionally you can use _print to pass translatable string without decoration.
|
|
|
|
Examples:
|
|
|
|
_verbose "Showing translatable debug message"
|
|
xxx "This is temporary debug"
|
|
_message "The program is doing something"
|
|
_message -n "Inline messages "
|
|
echo "are useful"
|
|
_success "All is fine"
|
|
_warning "Something's wrong"
|
|
_print "Did I really say that?"
|
|
_failure "Fatal error: exiting with default exit code 1"
|
|
_message "This is not reached, nor the next 'die' command"
|
|
exitval=127 die "I am Jack's dead corpse."
|
|
|
|
Will display something like:
|
|
|
|
tomb [D] Showing translatable debug message
|
|
tomb [D] This is temporary debug
|
|
tomb . The program is doing something
|
|
tomb > Inline messages are useful
|
|
tomb (*) All is fine
|
|
tomb [W] Something's wrong
|
|
Did I really say that?
|
|
tomb [E] Fatal error: exiting with default exit code 1
|