buildtools-tarball: move setting of envvars to respective envfile

* make git,curl,python3-requests align with openssl, move the setting of
  envvars into respective envfile
* for environment.d-openssl.sh, also check if ca-certificates.crt exist
  before export envvars

(From OE-Core rev: 5c915fcada5868bdbb8aa3e28c18a26cfc41914f)

Signed-off-by: Changqing Li <changqing.li@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

meta/recipes-devtools/git/git/environment.d-git.sh

@@ -0,0 +1,3 @@
+if [ -e "${OECORE_NATIVE_SYSROOT}/etc/ssl/certs/ca-certificates.crt" ];then
+    export GIT_SSL_CAINFO="${OECORE_NATIVE_SYSROOT}/etc/ssl/certs/ca-certificates.crt"
+fi

meta/recipes-devtools/git/git_2.49.0.bb

@@ -12,6 +12,10 @@ SRC_URI = "${KERNELORG_MIRROR}/software/scm/git/git-${PV}.tar.gz;name=tarball \
            file://0001-config.mak.uname-do-not-force-RHEL-7-specific-build-.patch \
            "
 
+SRC_URI:append:class-nativesdk = " \
+           file://environment.d-git.sh \
+           "
+
 S = "${WORKDIR}/git-${PV}"
 
 LIC_FILES_CHKSUM = "\
@@ -112,6 +116,9 @@ do_install:append:class-nativesdk() {
 		GIT_EXEC_PATH='`dirname $''realpath`'/${REL_GIT_EXEC_PATH} \
 		GIT_TEMPLATE_DIR='`dirname $''realpath`'/${REL_GIT_TEMPLATE_DIR}
 	perl_native_fixup
+
+	mkdir -p ${D}${SDKPATHNATIVE}/environment-setup.d
+	install -m 644 ${UNPACKDIR}/environment.d-git.sh ${D}${SDKPATHNATIVE}/environment-setup.d/git.sh
 }
 
 FILES:${PN} += "${datadir}/git-core ${libexecdir}/git-core/"
@@ -152,6 +159,8 @@ FILES:${PN}-tk = " \
 
 PACKAGES =+ "gitweb"
 FILES:gitweb = "${datadir}/gitweb/"
+
+FILES:${PN}:append:class-nativesdk = " ${SDKPATHNATIVE}/environment-setup.d/git.sh"
 RDEPENDS:gitweb = "perl"
 
 BBCLASSEXTEND = "native nativesdk"