[gentoo-dev] [PATCH v3] eclass/kernel-2.eclass: Remove use of tr in global scope

[gentoo-dev] [PATCH v3] eclass/kernel-2.eclass: Remove use of tr in global scope

[Mike Pagano]

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This time, use bash 4.0, but limit the use of this function to ebuild that have EAPI >= 6.
Display a warning for maintainers to upgrade their ebuilds, or remove the call.
Thanks to mgorny for the suggestion.

Signed-off-by: Mike Pagano <mpagano@gentoo.org>
---
 eclass/kernel-2.eclass | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/eclass/kernel-2.eclass b/eclass/kernel-2.eclass
index 84909f30c..a80f3e91a 100644
--- a/eclass/kernel-2.eclass
+++ b/eclass/kernel-2.eclass
@@ -1407,11 +1407,20 @@ getfilevar() {
 # This function sets ARCH_URI and ARCH_PATCH
 # with the neccessary info for the arch sepecific compatibility
 # patchsets.
+# To use, an ebuild could contain a line like:
+# AMD64_URI=http//linktothearchspecificpatch
+# This function requires EAPI >= 6.
 
 detect_arch() {
 
-	local ALL_ARCH LOOP_ARCH LOOP_ARCH_L COMPAT_URI i TC_ARCH_KERNEL
+	if [[ "${EAPI}" -lt 6 ]]; then 
+		eqawarn "ebuild is attempting to call detect_arch when EAPI < 6." 
+		eqawarn "This function will not be executed." 
+		return
+	fi
 
+	local ALL_ARCH LOOP_ARCH LOOP_ARCH_L COMPAT_URI i TC_ARCH_KERNEL
+	
 	# COMPAT_URI is the contents of ${ARCH}_URI
 	# ARCH_URI is the URI for all the ${ARCH}_URI patches
 	# ARCH_PATCH is ARCH_URI broken into files for UNIPATCH
@@ -1425,18 +1434,15 @@ detect_arch() {
 		COMPAT_URI="${LOOP_ARCH}_URI"
 		COMPAT_URI="${!COMPAT_URI}"
 
-		declare -l LOOP_ARCH_L=${LOOP_ARCH}
-
 		[[ -n ${COMPAT_URI} ]] && \
-			ARCH_URI="${ARCH_URI} ${LOOP_ARCH_L}? ( ${COMPAT_URI} )"
+			ARCH_URI="${ARCH_URI} ${LOOP_ARCH,,}? ( ${COMPAT_URI} )"
 
-		declare -u TC_ARCH_KERNEL=$(tc-arch-kernel)
-		if [[ ${LOOP_ARCH} == ${TC_ARCH_KERNEL} ]]; then
+		TC_ARCH_KERNEL=$(tc-arch-kernel);
+		if [[ ${LOOP_ARCH} == ${TC_ARCH_KERNEL^^} ]]; then
 			for i in ${COMPAT_URI}; do
 				ARCH_PATCH="${ARCH_PATCH} ${DISTDIR}/${i/*\//}"
 			done
 		fi
-
 	done
 }
 
-- 
2.13.5



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Re: [gentoo-dev] [PATCH v3] eclass/kernel-2.eclass: Remove use of tr in global scope

[Floyd Anderson]

Hello,

some remarks below ...

On Mi, 06 Sep 23:40:50 +0000
Mike Pagano <mpagano@gentoo.org> wrote:
>This time, use bash 4.0, but limit the use of this function to ebuild that have EAPI >= 6.
>Display a warning for maintainers to upgrade their ebuilds, or remove the call.
>Thanks to mgorny for the suggestion.
>
>Signed-off-by: Mike Pagano <mpagano@gentoo.org>
>---
> eclass/kernel-2.eclass | 20 +++++++++++++-------
> 1 file changed, 13 insertions(+), 7 deletions(-)
>
>diff --git a/eclass/kernel-2.eclass b/eclass/kernel-2.eclass
>index 84909f30c..a80f3e91a 100644
>--- a/eclass/kernel-2.eclass
>+++ b/eclass/kernel-2.eclass
>@@ -1407,11 +1407,20 @@ getfilevar() {
> # This function sets ARCH_URI and ARCH_PATCH
> # with the neccessary info for the arch sepecific compatibility
> # patchsets.
>+# To use, an ebuild could contain a line like:
>+# AMD64_URI=http//linktothearchspecificpatch

Even it’s just a comment:

    # AMD64_URI="http://link-to-the-arch-specific-patch"

looks friendlier to my eyes. However at least the colon after the scheme 
should be given.

>+# This function requires EAPI >= 6.
>
> detect_arch() {
>
>-	local ALL_ARCH LOOP_ARCH LOOP_ARCH_L COMPAT_URI i TC_ARCH_KERNEL
>+	if [[ "${EAPI}" -lt 6 ]]; then
>+		eqawarn "ebuild is attempting to call detect_arch when EAPI < 6."
>+		eqawarn "This function will not be executed."
>+		return
>+	fi
>
>+	local ALL_ARCH LOOP_ARCH LOOP_ARCH_L COMPAT_URI i TC_ARCH_KERNEL

Declaration of LOOP_ARCH_L seems obsolete now.

>+	
> 	# COMPAT_URI is the contents of ${ARCH}_URI
> 	# ARCH_URI is the URI for all the ${ARCH}_URI patches
> 	# ARCH_PATCH is ARCH_URI broken into files for UNIPATCH
>@@ -1425,18 +1434,15 @@ detect_arch() {
> 		COMPAT_URI="${LOOP_ARCH}_URI"
> 		COMPAT_URI="${!COMPAT_URI}"
>
>-		declare -l LOOP_ARCH_L=${LOOP_ARCH}
>-
> 		[[ -n ${COMPAT_URI} ]] && \
>-			ARCH_URI="${ARCH_URI} ${LOOP_ARCH_L}? ( ${COMPAT_URI} )"
>+			ARCH_URI="${ARCH_URI} ${LOOP_ARCH,,}? ( ${COMPAT_URI} )"
>
>-		declare -u TC_ARCH_KERNEL=$(tc-arch-kernel)
>-		if [[ ${LOOP_ARCH} == ${TC_ARCH_KERNEL} ]]; then
>+		TC_ARCH_KERNEL=$(tc-arch-kernel);
>+		if [[ ${LOOP_ARCH} == ${TC_ARCH_KERNEL^^} ]]; then
> 			for i in ${COMPAT_URI}; do
> 				ARCH_PATCH="${ARCH_PATCH} ${DISTDIR}/${i/*\//}"
> 			done
> 		fi
>-
> 	done
> }
>
>-- 
>2.13.5
>
>


-- 
Regards,
floyd

Re: [gentoo-dev] [PATCH v3] eclass/kernel-2.eclass: Remove use of tr in global scope

[Michał Górny]

Dnia 7 września 2017 01:40:50 CEST, Mike Pagano <mpagano@gentoo.org> napisał(a):
>This time, use bash 4.0, but limit the use of this function to ebuild
>that have EAPI >= 6.
>Display a warning for maintainers to upgrade their ebuilds, or remove
>the call.
>Thanks to mgorny for the suggestion.
>
>Signed-off-by: Mike Pagano <mpagano@gentoo.org>
>---
> eclass/kernel-2.eclass | 20 +++++++++++++-------
> 1 file changed, 13 insertions(+), 7 deletions(-)
>
>diff --git a/eclass/kernel-2.eclass b/eclass/kernel-2.eclass
>index 84909f30c..a80f3e91a 100644
>--- a/eclass/kernel-2.eclass
>+++ b/eclass/kernel-2.eclass
>@@ -1407,11 +1407,20 @@ getfilevar() {
> # This function sets ARCH_URI and ARCH_PATCH
> # with the neccessary info for the arch sepecific compatibility
> # patchsets.
>+# To use, an ebuild could contain a line like:
>+# AMD64_URI=http//linktothearchspecificpatch
>+# This function requires EAPI >= 6.
> 
> detect_arch() {
> 
>-	local ALL_ARCH LOOP_ARCH LOOP_ARCH_L COMPAT_URI i TC_ARCH_KERNEL
>+	if [[ "${EAPI}" -lt 6 ]]; then 

EAPI is not a number. The next one we'll call gray-grizzly just to prove the point.

>+		eqawarn "ebuild is attempting to call detect_arch when EAPI < 6." 
>+		eqawarn "This function will not be executed." 
>+		return
>+	fi
> 
>+	local ALL_ARCH LOOP_ARCH LOOP_ARCH_L COMPAT_URI i TC_ARCH_KERNEL
>+	
> 	# COMPAT_URI is the contents of ${ARCH}_URI
> 	# ARCH_URI is the URI for all the ${ARCH}_URI patches
> 	# ARCH_PATCH is ARCH_URI broken into files for UNIPATCH
>@@ -1425,18 +1434,15 @@ detect_arch() {
> 		COMPAT_URI="${LOOP_ARCH}_URI"
> 		COMPAT_URI="${!COMPAT_URI}"
> 
>-		declare -l LOOP_ARCH_L=${LOOP_ARCH}
>-
> 		[[ -n ${COMPAT_URI} ]] && \
>-			ARCH_URI="${ARCH_URI} ${LOOP_ARCH_L}? ( ${COMPAT_URI} )"
>+			ARCH_URI="${ARCH_URI} ${LOOP_ARCH,,}? ( ${COMPAT_URI} )"
> 
>-		declare -u TC_ARCH_KERNEL=$(tc-arch-kernel)
>-		if [[ ${LOOP_ARCH} == ${TC_ARCH_KERNEL} ]]; then
>+		TC_ARCH_KERNEL=$(tc-arch-kernel);

Strictly speaking, you aren't supposed to call this in global scope either. To do it properly, you should split the function into two parts, one for global scope, and the other for phase functions. 

>+		if [[ ${LOOP_ARCH} == ${TC_ARCH_KERNEL^^} ]]; then
> 			for i in ${COMPAT_URI}; do
> 				ARCH_PATCH="${ARCH_PATCH} ${DISTDIR}/${i/*\//}"
> 			done
> 		fi
>-
> 	done
> }
> 


-- 
Best regards,
Michał Górny (by phone)

[gentoo-dev] Re: [PATCH v3] eclass/kernel-2.eclass: Remove use of tr in global scope

[Duncan]

Floyd Anderson posted on Thu, 07 Sep 2017 03:13:45 +0200 as excerpted:

>>+# To use, an ebuild could contain a line like:
>>+# AMD64_URI=http//linktothearchspecificpatch
> 
> Even it’s just a comment:
> 
>     # AMD64_URI="http://link-to-the-arch-specific-patch"
> 
> looks friendlier to my eyes. However at least the colon after the scheme
> should be given.

...  And please, even in examples, use https://, to encourage the at 
least somewhat better security than plain http.

(While https may not be particularly resistant to state-level actors able 
to lean on CAs, it should hopefully at least resist the trivial stuff 
like insecure wifi and ISP content-insertion games.)

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman

Re: [gentoo-dev] [PATCH v3] eclass/kernel-2.eclass: Remove use of tr in global scope

[Ciaran McCreesh]

On Thu, 07 Sep 2017 07:42:31 +0200
Michał Górny <mgorny@gentoo.org> wrote:
> >+	if [[ "${EAPI}" -lt 6 ]]; then   
> 
> EAPI is not a number. The next one we'll call gray-grizzly just to
> prove the point.

Careful, you're turning into me.

-- 
Ciaran McCreesh