[PR PATCH] xbps-src: common: wrap which and tar

[sgn <sgn@users.noreply.github.com>]

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There is a new pull request by sgn against master on the void-packages repository

https://github.com/sgn/void-packages wrap-which-and-tar
https://github.com/void-linux/void-packages/pull/36498

xbps-src: common: wrap which and tar
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#### Testing the changes
- I tested the changes in this PR: **YES**

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A patch file from https://github.com/void-linux/void-packages/pull/36498.patch is attached

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From e6a3df70ad46113b75ee6610fc3d6ad5461e6e80 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C4=90o=C3=A0n=20Tr=E1=BA=A7n=20C=C3=B4ng=20Danh?=
 <congdanhqx@gmail.com>
Date: Sun, 3 Apr 2022 18:08:47 +0700
Subject: [PATCH 1/3] hooks: also wrap scripts in pre-check

---
 common/hooks/pre-check/02-script-wrapper.sh | 1 +
 1 file changed, 1 insertion(+)
 create mode 120000 common/hooks/pre-check/02-script-wrapper.sh

diff --git a/common/hooks/pre-check/02-script-wrapper.sh b/common/hooks/pre-check/02-script-wrapper.sh
new file mode 120000
index 000000000000..b637ffb30df8
--- /dev/null
+++ b/common/hooks/pre-check/02-script-wrapper.sh
@@ -0,0 +1 @@
+../pre-configure/02-script-wrapper.sh
\ No newline at end of file

From 94c9113cf882b64cc4153543e5b3ef3f9f8740c4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C4=90o=C3=A0n=20Tr=E1=BA=A7n=20C=C3=B4ng=20Danh?=
 <congdanhqx@gmail.com>
Date: Sun, 3 Apr 2022 18:09:59 +0700
Subject: [PATCH 2/3] script-wrappers: provide naive implementation of which

---
 .../hooks/pre-configure/02-script-wrapper.sh   | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/common/hooks/pre-configure/02-script-wrapper.sh b/common/hooks/pre-configure/02-script-wrapper.sh
index 09c796001ea3..3eb7c645db1d 100644
--- a/common/hooks/pre-configure/02-script-wrapper.sh
+++ b/common/hooks/pre-configure/02-script-wrapper.sh
@@ -154,6 +154,23 @@ install_wrappers() {
 	done
 }
 
+install_which() {
+	if ! command -v which >/dev/null 2>&1; then
+		cat >>"${XBPS_WRAPPERDIR}/which" <<-'_EOF'
+		#!/bin/sh
+		ret=0
+		while test $# != 0; do
+		    case "$1" in
+		    -*) ;;
+		    *) command -v "$1" || ret=1 ;;
+		    esac
+		    shift
+		done
+		exit "$ret"
+		_EOF
+	fi
+}
+
 install_cross_wrappers() {
 	local fname prefix
 
@@ -188,6 +205,7 @@ hook() {
 	export PATH="$XBPS_WRAPPERDIR:$PATH"
 
 	install_wrappers
+	install_which
 
 	[ -z "$CROSS_BUILD" ] && return 0
 

From 6d2cca7d2e08e397c6ef9662e8cec96ee74ef088 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C4=90o=C3=A0n=20Tr=E1=BA=A7n=20C=C3=B4ng=20Danh?=
 <congdanhqx@gmail.com>
Date: Sun, 3 Apr 2022 18:11:16 +0700
Subject: [PATCH 3/3] script-wrapper: use bsdtar as tar if tar isn't provided

---
 common/hooks/pre-configure/02-script-wrapper.sh | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/common/hooks/pre-configure/02-script-wrapper.sh b/common/hooks/pre-configure/02-script-wrapper.sh
index 3eb7c645db1d..a9767e5fa07d 100644
--- a/common/hooks/pre-configure/02-script-wrapper.sh
+++ b/common/hooks/pre-configure/02-script-wrapper.sh
@@ -171,6 +171,15 @@ install_which() {
 	fi
 }
 
+install_tar() {
+	if ! command -v tar >/dev/null 2>&1; then
+		cat >>"${XBPS_WRAPPERDIR}/tar" <<-'_EOF'
+		#!/bin/sh
+		bsdtar "$@"
+		_EOF
+	fi
+}
+
 install_cross_wrappers() {
 	local fname prefix
 
@@ -206,6 +215,7 @@ hook() {
 
 	install_wrappers
 	install_which
+	install_tar
 
 	[ -z "$CROSS_BUILD" ] && return 0