pkg-generic: substitute colon and space out of PKG_VERSION

Using a colon or a space in a make target doesn't work, so they have to
be filtered out of the PKG_VERSION variable just like the / currently
already is.

This will be needed for date-based CVS versions.

Add a helper macro 'sanitize' in pkg-utils.mk to implement this. This
also moves the strip to the inner level for the target branch.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Cc: Fabio Porcedda <fabio.porcedda@gmail.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
---
Changes v1 -> v2:
  - Move to a helper macro (Thomas).
  - Add moving of strip to commit message (Yann).

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
---
 package/pkg-generic.mk | 6 ++++--
 package/pkg-utils.mk   | 5 +++++
 2 files changed, 9 insertions(+), 2 deletions(-)

Arnout, All,

On 2015-04-23 01:08 +0200, Arnout Vandecappelle (Essensium/Mind) spake thusly:
> Using a colon or a space in a make target doesn't work, so they have to
> be filtered out of the PKG_VERSION variable just like the / currently
> already is.
> 
> This will be needed for date-based CVS versions.
> 
> Add a helper macro 'sanitize' in pkg-utils.mk to implement this. This
> also moves the strip to the inner level for the target branch.
> 
> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
> Cc: Fabio Porcedda <fabio.porcedda@gmail.com>
> Cc: Yann E. MORIN <yann.morin.1998@free.fr>

Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Regards,
Yann E. MORIN.

> ---
> Changes v1 -> v2:
>   - Move to a helper macro (Thomas).
>   - Add moving of strip to commit message (Yann).
> 
> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
> ---
>  package/pkg-generic.mk | 6 ++++--
>  package/pkg-utils.mk   | 5 +++++
>  2 files changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
> index d1a1811..455bdf1 100644
> --- a/package/pkg-generic.mk
> +++ b/package/pkg-generic.mk
> @@ -322,17 +322,19 @@ $(2)_RAWNAME			=  $$(patsubst host-%,%,$(1))
>  # sanitize the package version that is used in paths, directory and file names.
>  # Forward slashes may appear in the package's version when pointing to a
>  # version control system branch or tag, for example remotes/origin/1_10_stable.
> +# Similar for spaces and colons (:) that may appear in date-based revisions for
> +# CVS.
>  ifndef $(2)_VERSION
>   ifdef $(3)_VERSION
>    $(2)_DL_VERSION := $$(strip $$($(3)_VERSION))
> -  $(2)_VERSION := $$(subst /,_,$$(strip $$($(3)_VERSION)))
> +  $(2)_VERSION := $$(call sanitize,$$($(3)_VERSION))
>   else
>    $(2)_VERSION = undefined
>    $(2)_DL_VERSION = undefined
>   endif
>  else
>    $(2)_DL_VERSION := $$(strip $$($(2)_VERSION))
> -  $(2)_VERSION := $$(strip $$(subst /,_,$$($(2)_VERSION)))
> +  $(2)_VERSION := $$(call sanitize,$$($(2)_VERSION))
>  endif
>  
>  $(2)_BASE_NAME	=  $(1)-$$($(2)_VERSION)
> diff --git a/package/pkg-utils.mk b/package/pkg-utils.mk
> index 5a385f8..99a3c1e 100644
> --- a/package/pkg-utils.mk
> +++ b/package/pkg-utils.mk
> @@ -37,6 +37,11 @@ endef
>  $(eval $(call caseconvert-helper,UPPERCASE,$(join $(addsuffix :,$([FROM])),$([TO]))))
>  $(eval $(call caseconvert-helper,LOWERCASE,$(join $(addsuffix :,$([TO])),$([FROM]))))
>  
> +# Sanitize macro cleans up generic strings so it can be used as a filename
> +# and in rules. Particularly useful for VCS version strings, that can contain
> +# slashes, colons (OK in filenames but not in rules), and spaces.
> +sanitize = $(subst $(space),_,$(subst :,_,$(subst /,_,$(strip $(1)))))
> +
>  #
>  # Manipulation of .config files based on the Kconfig
>  # infrastructure. Used by the BusyBox package, the Linux kernel
> -- 
> 2.1.4
>