mirror of
https://github.com/Llewellynvdm/Tomb.git
synced 2024-11-11 07:30:56 +00:00
[cleanup] Improve style guide
This commit is contained in:
parent
9539d0cc4b
commit
64c20d95f2
@ -3,6 +3,7 @@ Style guidelines
|
||||
|
||||
Indentation
|
||||
-----------
|
||||
|
||||
Code must be indented using four spaces.
|
||||
In vim, this can be accomplished using
|
||||
|
||||
@ -12,13 +13,64 @@ In vim, this can be accomplished using
|
||||
Naming
|
||||
------
|
||||
|
||||
global variables should be `$UPPERCASE`.
|
||||
Short version: $GLOBAL, $local, func_name()
|
||||
|
||||
local variables should be `$lowercase`, best if it can be written without underscores.
|
||||
If you feel the need to name a variable `$longdescriptionofwhatthisisusefulfor`,
|
||||
then you're allowed to use underscores. But do you really need?
|
||||
Variables must be declared and scoped.
|
||||
|
||||
functions should be lowercase+underscores: `do_this()`
|
||||
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
|
||||
@ -37,20 +89,22 @@ Here is the deal:
|
||||
|
||||
Name (Shortcut) Return When to use
|
||||
=================================================================================
|
||||
_failure (die) exit 1 You want to exit the program with a fatal error.
|
||||
You may pass a different exit code as second argument.
|
||||
|
||||
_warning (no) You want to inform the user about an error condition.
|
||||
_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.
|
||||
|
||||
_verbose (xxx) You need to check the current state of the program.
|
||||
_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 second argument.
|
||||
_failure takes an exit code as an optional exitval environment variable.
|
||||
|
||||
Additionally you can use _print to pass translatable string without decoration.
|
||||
|
||||
Examples:
|
||||
|
||||
@ -61,9 +115,10 @@ Examples:
|
||||
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"
|
||||
die "I am Jack's dead corpse." 127
|
||||
exitval=127 die "I am Jack's dead corpse."
|
||||
|
||||
Will display something like:
|
||||
|
||||
@ -73,4 +128,5 @@ Will display something like:
|
||||
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
|
||||
|
Loading…
Reference in New Issue
Block a user