tcwg_kernel-build.sh: Fill in update_baseline and push_baseline

... and add git_push helper.

Change-Id: I2bdbbc14aa08f9bb10b1690780542c6e049c4b73

1 files changed, 53 insertions, 0 deletions

diff --git a/tcwg_kernel-build.sh b/tcwg_kernel-build.sh
index 1ace57c3..f9ba98b0 100755
--- a/tcwg_kernel-build.sh
+++ b/tcwg_kernel-build.sh
@@ -528,12 +528,65 @@ check_regression ()
     )
 }
 
+# Commit current result and artifacts to the baseline repository
 update_baseline ()
 {
+    (
+    set -euf -o pipefail
+
+    local amend=""
+    local prev_head=""
+
+    # We discard baseline entries for results worse or same than
+    # the current one, but keep entries for results that are better
+    # (so that we have a record of pending regressions).
+    while no_regression_p; do
+	if git -C base-artifacts rev-parse HEAD^ >/dev/null 2>&1; then
+	    prev_head=$(git -C base-artifacts rev-parse HEAD)
+	    git -C base-artifacts reset --hard HEAD^
+	else
+	    # We got to the beginning of git history, so amend the current
+	    # commit.  The initial state of baseline is "empty" branch,
+	    # which we treat as worst possible in no_regression_p().
+	    amend="--amend"
+	    prev_head=""
+	    break
+	fi
+    done
+
+    # For every regression we want to keep artifacts for the first-bad
+    # build, so discard one less than needed.
+    if [ x"$prev_head" != x"" ]; then
+	git -C base-artifacts reset --hard $prev_head
+    fi
+
+    # Rsync current artifacts.
+    # !!! From this point on logs and other artifacts won't be included
+    # in base-artifacts.git repo.
+    rsync -a --del --exclude /.git $top_artifacts/ base-artifacts/
+
+    build_rev=$(git -C ${git_dirs[$current_project]} rev-parse HEAD)
+
+    cd base-artifacts
+    git add .
+    git commit $amend -m "$current_project-$build_rev: $(tail -n1 $top_artifacts/results)
+
+$(cat $top_artifacts/results)"
+    )
 }
 
+# Push to $current_project baseline branch and to base-artifacts repo.
 push_baseline ()
 {
+    (
+    set -euf -o pipefail
+
+    assert ! $git_read_only
+
+    git_init_linaro_local_remote base-artifacts baseline false
+    git_push base-artifacts baseline $baseline
+    git_push ${git_dirs[$current_project]} baseline $baseline
+    )
 }
 
 run_step reset_artifacts