[1/1] utils/checkpackagelib: CommentsMenusPackagesOrder: append elements to arrays if needed

To be "future-proof" append elements to arrays if needed.
Also change order of variables.

Signed-off-by: Jerzy Grzegorek <jerzy.m.grzegorek@gmail.com>
---
 utils/checkpackagelib/lib_config.py | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

Jerzy, All,

On 2019-07-15 10:32 +0200, Jerzy Grzegorek spake thusly:
> To be "future-proof" append elements to arrays if needed.
> Also change order of variables.

Is that a fix for the existing issues, or just an improvement/cleanup?

> Signed-off-by: Jerzy Grzegorek <jerzy.m.grzegorek@gmail.com>
> ---
>  utils/checkpackagelib/lib_config.py | 14 ++++++++++----
>  1 file changed, 10 insertions(+), 4 deletions(-)
> 
> diff --git a/utils/checkpackagelib/lib_config.py b/utils/checkpackagelib/lib_config.py
> index f0edb9993d..f55bb33d69 100644
> --- a/utils/checkpackagelib/lib_config.py
> +++ b/utils/checkpackagelib/lib_config.py
> @@ -61,9 +61,9 @@ class AttributesOrder(_CheckFunction):
>  
>  
>  class CommentsMenusPackagesOrder(_CheckFunction):
> -    print_package_warning = [True, True, True, True, True, True]
> -    menu_of_packages = ["", "", "", "", "", ""]
> -    package = ["", "", "", "", "", ""]
> +    menu_of_packages = [""]
> +    package = [""]
> +    print_package_warning = [True]

Why do we need an initial value in the arrays? Can't we do something
like:

    package = []
    ...
    if level > len(self.package):
        append the stuff here.

Of course, that is not very nice either... All of that because we can't
assigne to an index that does not already exists. In python, the moto is
"easier to ask for forgiveness than permission". So:

    try:
        self.menu_of_packages[level] = text[:-1]
        self.package[level] = ""
        self.print_package_warning[level] = True
    except IndexError:
        self.menu_of_packages.append(text[:-1])
        self.package.append("")
        self.print_package_warning.append(True)

Regards,
Yann E. MORIN.

>      def before(self):
>          self.state = ""
> @@ -87,9 +87,15 @@ class CommentsMenusPackagesOrder(_CheckFunction):
>                      self.state += "-menu"
>  
>              level = self.get_level()
> +
> +            if level > len(self.package) - 1:
> +                self.menu_of_packages.append("")
> +                self.package.append("")
> +                self.print_package_warning.append(True)
> +
> +            self.menu_of_packages[level] = text[:-1]
>              self.package[level] = ""
>              self.print_package_warning[level] = True
> -            self.menu_of_packages[level] = text[:-1]
>  
>          elif text.startswith("endif") or text.startswith("endmenu"):
>              if self.state.endswith("comment"):
> -- 
> 2.17.1
> 
> _______________________________________________
> buildroot mailing list
> buildroot@busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

Hi Yann,

> Jerzy, All,
>
> On 2019-07-15 10:32 +0200, Jerzy Grzegorek spake thusly:
>> To be "future-proof" append elements to arrays if needed.
>> Also change order of variables.
> Is that a fix for the existing issues, or just an improvement/cleanup?


That is just improvement.


>
>> Signed-off-by: Jerzy Grzegorek <jerzy.m.grzegorek@gmail.com>
>> ---
>>   utils/checkpackagelib/lib_config.py | 14 ++++++++++----
>>   1 file changed, 10 insertions(+), 4 deletions(-)
>>
>> diff --git a/utils/checkpackagelib/lib_config.py b/utils/checkpackagelib/lib_config.py
>> index f0edb9993d..f55bb33d69 100644
>> --- a/utils/checkpackagelib/lib_config.py
>> +++ b/utils/checkpackagelib/lib_config.py
>> @@ -61,9 +61,9 @@ class AttributesOrder(_CheckFunction):
>>   
>>   
>>   class CommentsMenusPackagesOrder(_CheckFunction):
>> -    print_package_warning = [True, True, True, True, True, True]
>> -    menu_of_packages = ["", "", "", "", "", ""]
>> -    package = ["", "", "", "", "", ""]
>> +    menu_of_packages = [""]
>> +    package = [""]
>> +    print_package_warning = [True]
> Why do we need an initial value in the arrays? Can't we do something


We don't need it.


> like:
>
>      package = []
>      ...
>      if level > len(self.package):
>          append the stuff here.
>
> Of course, that is not very nice either... All of that because we can't
> assigne to an index that does not already exists. In python, the moto is
> "easier to ask for forgiveness than permission". So:
>
>      try:
>          self.menu_of_packages[level] = text[:-1]
>          self.package[level] = ""
>          self.print_package_warning[level] = True
>      except IndexError:
>          self.menu_of_packages.append(text[:-1])
>          self.package.append("")
>          self.print_package_warning.append(True)

I'm fine with your suggestion too.
I'll send a new version in a couple of days.
Thanks for the review.

Regards,
Jerzy


>
> Regards,
> Yann E. MORIN.
>
>>       def before(self):
>>           self.state = ""
>> @@ -87,9 +87,15 @@ class CommentsMenusPackagesOrder(_CheckFunction):
>>                       self.state += "-menu"
>>   
>>               level = self.get_level()
>> +
>> +            if level > len(self.package) - 1:
>> +                self.menu_of_packages.append("")
>> +                self.package.append("")
>> +                self.print_package_warning.append(True)
>> +
>> +            self.menu_of_packages[level] = text[:-1]
>>               self.package[level] = ""
>>               self.print_package_warning[level] = True
>> -            self.menu_of_packages[level] = text[:-1]
>>   
>>           elif text.startswith("endif") or text.startswith("endmenu"):
>>               if self.state.endswith("comment"):
>> -- 
>> 2.17.1
>>
>> _______________________________________________
>> buildroot mailing list
>> buildroot@busybox.net
>> http://lists.busybox.net/mailman/listinfo/buildroot