Decouple master-libvirt arch variable from install/upgrade scripts

The arch environment variable was overused to generate proper repository
paths, when the whole information was already available as part of
dist_name and version_name.

This patch moves the URL transformation logic within bash_lib.sh,
allowing master_libvirt to pass in fewer environment variables.

Author: cvicentiu

master-libvirt/master.cfg

@@ -227,22 +227,8 @@ for builder_name in BUILDERS_INSTALL:
         )
     )
 
-    if builder_type == "deb":
-        factory_install = f_deb_install
-        factory_upgrade = f_deb_upgrade
-        build_arch = platform
-    elif builder_type == "rpm":
-        factory_install = f_rpm_install
-        factory_upgrade = f_rpm_upgrade
-        build_arch = (
-            os_name + str(OS_INFO[os_info_name]["version_name"]) + "-" + platform
-        )
-
-    # FIXME - all RPM's should follow the same conventions!
-    if os_name == "centos" and OS_INFO[os_info_name]["version_name"] >= 9:
-        if platform == "amd64":
-            platform = "x86_64"
-        build_arch = f"centos/{OS_INFO[os_info_name]['version_name']}/{platform}"
+    factory_install = f_deb_install if builder_type == "deb" else f_rpm_install
+    factory_upgrade = f_deb_upgrade if builder_type == "deb" else f_rpm_upgrade
 
     c["builders"].append(
         util.BuilderConfig(
@@ -257,7 +243,7 @@ for builder_name in BUILDERS_INSTALL:
                 "needsGalera": "yes",
                 "dist_name": os_name,
                 "version_name": OS_INFO[os_info_name]["version_name"],
-                "arch": build_arch,
+                "arch": platform,
                 "BB_CI": True,
                 "artifactsURL": artifactsURL,
             },
@@ -281,7 +267,7 @@ for builder_name in BUILDERS_INSTALL:
                 "needsGalera": "yes",
                 "dist_name": os_name,
                 "version_name": OS_INFO[os_info_name]["version_name"],
-                "arch": build_arch,
+                "arch": platform,
                 "test_mode": "server",
                 "test_type": "major",
                 "BB_CI": True,
@@ -307,7 +293,7 @@ for builder_name in BUILDERS_INSTALL:
                 "needsGalera": "yes",
                 "dist_name": os_name,
                 "version_name": OS_INFO[os_info_name]["version_name"],
-                "arch": build_arch,
+                "arch": platform,
                 "test_mode": "all",
                 "test_type": "minor",
                 "BB_CI": True,
@@ -331,7 +317,7 @@ for builder_name in BUILDERS_INSTALL:
                 "needsGalera": "no",
                 "dist_name": os_name,
                 "version_name": OS_INFO[os_info_name]["version_name"],
-                "arch": build_arch,
+                "arch": platform,
                 "test_mode": "columnstore",
                 "test_type": "minor",
                 "BB_CI": True,

scripts/bash_lib.sh

@@ -143,6 +143,68 @@ rpm_repo_dir() {
   set -u
 }
 
+_rpm_get_base_mirror_url() {
+  local branch=$1
+  echo "https://rpm.mariadb.org/$branch"
+}
+
+_rpm_get_base_archive_url() {
+  local branch=$1
+  echo "https://archive.mariadb.org/mariadb-$branch/yum/"
+}
+
+_rpm_get_repo_path() {
+  # Construct a distro repo URL path based on the file hierarchy set up
+  # by buildbot / release scripts.
+  local arch=$1
+  local dist_name=$2
+  local version_number=$3
+  local path="${dist_name}${version_number}-${arch}"
+
+  # Special handling for centos 9
+  # This uses the previous hierarchy in release scripts instead of a flattened
+  # path.
+  if [[ "$dist_name" == "centos" && "$version_number" -ge 9 ]]; then
+      # Check if architecture is amd64 and convert to x86_64
+      if [[ "$arch" == "amd64" ]]; then
+          arch="x86_64"
+      fi
+      path="$dist_name/$version_number/$arch"
+  fi
+
+  echo "$path"
+}
+
+rpm_get_mirror_url() {
+  # Return full URL to corresponding distro repo on the mariadb mirror.
+  local branch=$1
+  local arch=$2
+  local dist_name=$3
+  local version_number=$4
+  local base
+  local path
+
+  base=$(_rpm_get_base_mirror_url "$branch")
+  path=$(_rpm_get_repo_path "$arch" "$dist_name" "$version_number")
+  # Print the final constructed URL
+  echo "${base}/${path}"
+}
+
+rpm_get_archive_url() {
+  # Return full URL to corresponding distro repo on the archive.
+  local branch=$1
+  local arch=$2
+  local dist_name=$3
+  local version_number=$4
+  local base
+  local path
+
+  base=$(_rpm_get_base_archive_url "$branch")
+  path=$(_rpm_get_repo_path "$arch" "$dist_name" "$version_number")
+  # Print the final constructed URL
+  echo "${base}/${path}"
+}
+
 rpm_pkg() {
   # ID_LIKE may not exist
   set +u
@@ -279,15 +341,25 @@ rpm_setup_mariadb_mirror() {
     bb_log_err "missing the branch variable"
     exit 1
   }
-  branch=$1
+  [[ -n $2 ]] || {
+    bb_log_err "missing the mirror_url variable"
+    exit 1
+  }
+  [[ -n $3 ]] || {
+    bb_log_err "missing the archive_url variable"
+    exit 1
+  }
+  local branch=$1
+  local mirror_url=$2
+  local archive_url=$3
+
   bb_log_info "setup MariaDB repository for $branch branch"
   command -v wget >/dev/null || {
     bb_log_err "wget command not found"
     exit 1
   }
-  #//TEMP it's probably better to install the last stable release here...?
-  mirror_url="https://rpm.mariadb.org/$branch/$arch"
-  archive_url="https://archive.mariadb.org/mariadb-$branch/yum/$arch"
+
+  local baseurl
   if wget -q --spider "$mirror_url"; then
     baseurl="$mirror_url"
   elif wget -q --spider "$archive_url"; then
@@ -297,7 +369,7 @@ rpm_setup_mariadb_mirror() {
     # since we know it will always fail. But apparently, it's not going to
     # happen soon in BB. Once done though, replace the warning with an error
     # and use a non-zero exit code.
-    bb_log_warn "rpm_setup_mariadb_mirror: $branch packages for $dist_name $version_name does not exist on https://rpm.mariadb.org/"
+    bb_log_warn "rpm_setup_mariadb_mirror: $branch packages do not exist on $baseurl"
     exit 0
   fi
   cat <<EOF | sudo tee "$(rpm_repo_dir)/MariaDB.repo"

scripts/rpm-upgrade.sh

@@ -34,7 +34,10 @@ set -x
 
 rpm_pkg_makecache
 
-rpm_setup_mariadb_mirror "$prev_major_version"
+
+mirror_url=$(rpm_get_mirror_url "$prev_major_version" "$arch" "$dist_name" "$version_name")
+archive_url=$(rpm_get_archive_url "$prev_major_version" "$arch" "$dist_name" "$version_name")
+rpm_setup_mariadb_mirror "$prev_major_version" "$mirror_url" "$archive_url"
 
 # Define the list of packages to install/upgrade
 case $test_mode in