[Buildroot] [PATCH 1/1] new package: jsen

[Thomas Petazzoni <thomas.petazzoni@free-electrons.com>]

Atul,

Thanks also for this contribution. As usual, a few comments.

First, the title should be:

	jsen: new package

As per our convention for naming the commits for new packages.

On Tue, 16 Feb 2016 12:18:13 +0530, Atul Singh wrote:

> diff --git a/package/Config.in b/package/Config.in
> index a5b31aa..cb3a3c8 100644
> --- a/package/Config.in
> +++ b/package/Config.in
> @@ -994,6 +994,7 @@ menu "JSON/XML"
>  	source "package/expat/Config.in"
>  	source "package/ezxml/Config.in"
>  	source "package/jansson/Config.in"
> +	source "package/jsen/Config.in"
>  	source "package/json-c/Config.in"
>  	source "package/json-glib/Config.in"
>  	source "package/jsoncpp/Config.in"

I am not sure JSON/XML is the appropriate place. Yes, jsen is related
to JSON, but I believe its main characteristic is that it is a
Javascript library. So it should probably go under the Javascript menu,
where we already have another package named json-javascript.

Yegor, what do you think? If the number of Javascript libraries becomes
really huge, then we can start creating sub-categories. But it is too
early to do this now.

> diff --git a/package/jsen/jsen.mk b/package/jsen/jsen.mk
> new file mode 100644
> index 0000000..e939739
> --- /dev/null
> +++ b/package/jsen/jsen.mk
> @@ -0,0 +1,32 @@
> +################################################################################
> +#
> +# jsen
> +#
> +################################################################################
> +
> +JSEN_VERSION = v0.6.0
> +JSEN_SITE = $(call github,bugventure,jsen,$(JSEN_VERSION))
> +JSEN_LICENSE = MIT
> +JSEN_LICENSE_FILES = LICENSE
> +JSEN_DIRECTORIES_LIST = dist lib
> +JSEN_ROOT_FILES_LIST = index.js
> +
> +define JSEN_INSTALL_TARGET_CMDS
> +	# Install required directories
> +	for dir in $(JSEN_DIRECTORIES_LIST); \
> +	do \
> +		$(INSTALL) -d $(TARGET_DIR)/usr/share/jsen/$$dir && \
> +		$(INSTALL) -m 0644 -t $(TARGET_DIR)/usr/share/jsen/$$dir \
> +			$(@D)/$$dir/*.* || exit 1; \
> +	done
> +
> +	# Install required files from the root directory
> +	for file in $(JSEN_ROOT_FILES_LIST); \
> +	do \
> +		$(INSTALL) -D -m 0644 $(@D)/$$file \
> +			$(TARGET_DIR)/usr/share/jsen/$$file \
> +			|| exit 1; \
> +	done
> +endef

I think this is more complicated than it needs to be. What about:

define JSEN_INSTALL_TARGET_CMDS
	mkdir -p $(TARGET_DIR)/usr/share/jsen
	$(foreach d,dist lib index.js,\
		cp -dpfr $(@D)/$(d) $(TARGET_DIR)/usr/share/jsen/$(sep))
endef

As a side note, I am wondering if we shouldn't create some common
infrastructure to simplify all those packages that just need to "copy"
stuff. Either a special variable in the generic-package infrastructure,
or a separate "copy-package" infrastructure that provides a special
variable that allows the package to list "stuff to be copied" and
another listing "where to copy". But that's clearly beyond the scope of
your patch, so don't worry about this.

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com