Improve kuberef lint script

The OPNFV security audit releng's job prevent to retrieve binaries from
external sources which results on depending to the binaries provided
by the OS package managers. This change pretends to cover different
scenarios where the Jenkins builder is unknown.

Signed-off-by: Victor Morales <v.morales@samsung.com>
Change-Id: I37d9b15d3ac9de0b06a96e07eed90f7cc717f444

1 files changed, 72 insertions, 6 deletions

diff --git a/jjb/kuberef/kuberef-run-linting.sh b/jjb/kuberef/kuberef-run-linting.sh
index 810f93321..084eac91c 100755
--- a/jjb/kuberef/kuberef-run-linting.sh
+++ b/jjb/kuberef/kuberef-run-linting.sh
@@ -12,10 +12,51 @@ set -o nounset
 set -o pipefail
 set -o xtrace
 
+# _vercmp() - Function that compares two versions
+function _vercmp {
+    local v1=$1
+    local op=$2
+    local v2=$3
+    local result
+
+    # sort the two numbers with sort's "-V" argument.  Based on if v2
+    # swapped places with v1, we can determine ordering.
+    result=$(echo -e "$v1\n$v2" | sort -V | head -1)
+
+    case $op in
+        "==")
+            [ "$v1" = "$v2" ]
+            return
+            ;;
+        ">")
+            [ "$v1" != "$v2" ] && [ "$result" = "$v2" ]
+            return
+            ;;
+        "<")
+            [ "$v1" != "$v2" ] && [ "$result" = "$v1" ]
+            return
+            ;;
+        ">=")
+            [ "$result" = "$v2" ]
+            return
+            ;;
+        "<=")
+            [ "$result" = "$v1" ]
+            return
+            ;;
+        *)
+            die $LINENO "unrecognised op: $op"
+            ;;
+    esac
+}
+
 echo "Requirements validation"
 # shellcheck disable=SC1091
 source /etc/os-release || source /usr/lib/os-release
 
+min_shellcheck_version=0.4.0
+min_tox_version=3.5
+
 pkgs=""
 if ! command -v shellcheck; then
     case ${ID,,} in
@@ -27,9 +68,19 @@ if ! command -v shellcheck; then
         ;;
     esac
 fi
-
 if ! command -v pip; then
-    pkgs+=" python-pip"
+    case ${ID,,} in
+        *suse*|rhel|centos|fedora)
+            pkgs+=" python3-pip python3-setuptools"
+        ;;
+        ubuntu|debian)
+            if _vercmp "${VERSION_ID}" '<=' "18.04"; then
+                pkgs+=" python-pip python-setuptools"
+            else
+                pkgs+=" python3-pip python3-setuptools"
+            fi
+        ;;
+    esac
 fi
 
 if [ -n "$pkgs" ]; then
@@ -37,11 +88,13 @@ if [ -n "$pkgs" ]; then
     case ${ID,,} in
         *suse*)
             sudo zypper install --gpg-auto-import-keys refresh
-            sudo -H -E zypper install -y --no-recommends "$pkgs"
+            # shellcheck disable=SC2086
+            sudo -H -E zypper install -y --no-recommends $pkgs
         ;;
         ubuntu|debian)
             sudo apt-get update
-            sudo -H -E apt-get -y --no-install-recommends install "$pkgs"
+            # shellcheck disable=SC2086
+            sudo -H -E apt-get -y --no-install-recommends install $pkgs
         ;;
         rhel|centos|fedora)
             PKG_MANAGER=$(command -v dnf || command -v yum)
@@ -49,9 +102,18 @@ if [ -n "$pkgs" ]; then
                 sudo -H -E "$PKG_MANAGER" -q -y install epel-release
             fi
             sudo "$PKG_MANAGER" updateinfo --assumeyes
-            sudo -H -E "${PKG_MANAGER}" -y install "$pkgs"
+            # shellcheck disable=SC2086
+            sudo -H -E "$PKG_MANAGER" -y install $pkgs
         ;;
     esac
+    if ! command -v pip && command -v pip3 ; then
+        sudo ln -s "$(command -v pip3)" /usr/bin/pip
+    fi
+    sudo "$(command -v pip)" install --upgrade pip
+fi
+
+if ! command -v tox || _vercmp "$(tox --version | awk '{print $1}')" '<' "$min_tox_version"; then
+    sudo "$(command -v pip)" install tox==$min_tox_version
 fi
 
 echo "Server tools information:"
@@ -61,4 +123,8 @@ shellcheck -V
 
 echo "Linting process execution"
 tox -e lint
-bash -c 'shopt -s globstar; shellcheck -x **/*.sh'
+if _vercmp "$(shellcheck --version | awk 'FNR==2{print $2}')" '<' "$min_shellcheck_version"; then
+    bash -c 'shopt -s globstar; shellcheck **/*.sh'
+else
+    bash -c 'shopt -s globstar; shellcheck -x **/*.sh'
+fi