Add script o generate the cgcs-centos-repo folder and mock config file.

The build system needs the cgcs-centos-repo symlinks pointing to
the files in the mirror. Also, the mock.cfg.proto file is needed
to provide configurations to the mock environment.

With this script we eliminate the need of having a separate
repository just to hold these symlinks. Now, the developers can
recreate this folder whenever is needed.

Change-Id: Ic4ca21516a1e1271ed15666d5d46ce7f4f5b68b3
Signed-off-by: Erich Cordoba <erich.cordoba.malibran@intel.com>

Dockerfile.centos73.TC-builder

@@ -117,6 +117,7 @@ RUN useradd -r -u $MYUID -g cgts -m $MYUNAME && \
 
 COPY toCOPY/finishSetup.sh /usr/local/bin
 COPY toCOPY/generate-cgcs-tis-repo /usr/local/bin
+COPY toCOPY/generate-cgcs-centos-repo /usr/local/bin
 COPY toCOPY/.inputrc /home/$MYUNAME/
 COPY toCOPY/.gitconfig /home/$MYUNAME/
 

README.md

@@ -174,6 +174,20 @@ repo init -u git@git.openstack.org:openstack/stx-manifest.git -m stx-manifest.xm
 repo sync
 ```
 
+### To generate cgcs-centos-repo
+
+The cgcs-centos-repo is a set of symbolic links to the packages in the mirror
+and the mock configuration file. It is needed to create these links if this is
+the first build or the mirror has been updated.
+
+```
+cd $MY_REPO_ROOT_DIR/stx-tools/scripts
+./generate-cgcs-centos-repo.sh /import/mirror/CentOS/pike
+```
+
+Where the argument to the script is the path of the mirror.
+
+
 ### To build all packages:
 ```
 $ cd $MY_REPO

toCOPY/generate-cgcs-centos-repo.sh

@@ -0,0 +1,119 @@
+#!/bin/bash
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+usage () {
+    echo "$0 <mirror-path>"
+}
+
+if [ $# -ne 1 ]; then
+    usage
+    exit -1
+fi
+
+if [ -z "$MY_REPO" ]; then
+    echo "\$MY_REPO is not set. Ensure you are running this script"
+    echo "from the container and \$MY_REPO points to the root of"
+    echo "your folder tree."
+    exit -1
+fi
+
+mirror_dir=$1
+dest_dir=$MY_REPO/cgcs-centos-repo
+timestamp="$(date +%F_%H%M)"
+mock_cfg_file=$dest_dir/mock.cfg.proto
+
+if [[ ( ! -d $mirror_dir/Binary ) || ( ! -d $mirror_dir/Source ) ]]; then
+    echo "The mirror $mirror_dir doesn't has the Binary and Source"
+    echo "folders. Please provide a valid mirror"
+    exit -1
+fi
+
+if [ ! -d "$dest_dir" ]; then
+    mkdir -p "$dest_dir"
+fi
+
+for t in "Binary" "Source" ; do
+    target_dir=$dest_dir/$t
+    if [ ! -d "$target_dir" ]; then
+        mkdir -p "$target_dir"
+    else
+        mv -f "$target_dir" "$target_dir-backup-$timestamp"
+        mkdir -p "$target_dir"
+    fi
+
+    pushd "$mirror_dir/$t"|| exit 1
+    find . -type d -exec mkdir -p "${target_dir}"/{} \;
+    popd || exit 1
+
+    all_files=$(find "$mirror_dir/$t" -type f -name "*")
+    for ff in $all_files; do
+        f_name=$(basename "$ff")
+        ln -sf "$ff" "$target_dir/$f_name"
+        echo "Creating symlink for $target_dir/$f_name"
+        echo "------------------------------"
+    done
+done
+
+read -r -d '' MOCK_CFG <<-EOF
+config_opts['root'] = 'BUILD_ENV/mock'
+config_opts['target_arch'] = 'x86_64'
+config_opts['legal_host_arches'] = ('x86_64',)
+config_opts['chroot_setup_cmd'] = 'install @buildsys-build'
+config_opts['dist'] = 'el7'  # only useful for --resultdir variable subst
+config_opts['releasever'] = '7'
+config_opts['rpmbuild_networking'] = False
+
+config_opts['yum.conf'] = """
+[main]
+keepcache=1
+debuglevel=2
+reposdir=/dev/null
+logfile=/var/log/yum.log
+retries=20
+obsoletes=1
+gpgcheck=0
+assumeyes=1
+syslog_ident=mock
+syslog_device=
+
+# repos
+[local-std]
+name=local-std
+baseurl=LOCAL_BASE/MY_BUILD_DIR/std/rpmbuild/RPMS
+enabled=1
+skip_if_unavailable=1
+metadata_expire=0
+
+[local-rt]
+name=local-rt
+baseurl=LOCAL_BASE/MY_BUILD_DIR/rt/rpmbuild/RPMS
+enabled=1
+skip_if_unavailable=1
+metadata_expire=0
+
+[local-installer]
+name=local-installer
+baseurl=LOCAL_BASE/MY_BUILD_DIR/installer/rpmbuild/RPMS
+enabled=1
+skip_if_unavailable=1
+metadata_expire=0
+
+[TisCentos7Distro]
+name=Tis-Centos-7-Distro
+enabled=1
+baseurl=LOCAL_BASE/MY_REPO_DIR/cgcs-centos-repo/Binary
+failovermethod=priority
+exclude=kernel-devel libvirt-devel
+
+
+"""
+EOF
+
+if [ -f "$mock_cfg_file" ]; then
+    mv "$mock_cfg_file" "$mock_cfg_file-backup-$timestamp"
+fi
+
+echo "Creating mock config file"
+echo "$MOCK_CFG" >> "$mock_cfg_file"