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-rwxr-xr-xcontrib/dependabot-dance114
1 files changed, 114 insertions, 0 deletions
diff --git a/contrib/dependabot-dance b/contrib/dependabot-dance
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+#! /usr/bin/env bash
+#
+# dependabot-dance - invoked to perform manual steps on podman dependabot PRs
+#
+# As best I can tell (please correct me if mistaken), dependabot's job is
+# to submit PRs with a change only in 'go.mod' but without actually
+# running 'make vendor' to update the source files under vendor. This
+# requires a human to run those steps.
+#
+# This script automates that, with a few safety checks.
+#
+ME=$(basename $0)
+missing=" argument is missing; see $ME --help for details"
+usage="Usage: $ME [--help] [-v|--verbose]
+
+$ME performs a series of magical steps to get dependabot PRs
+ready for merge. The important one is 'make vendor-in-container',
+everything else is scaffolding to check out the PR and push it back.
+
+Flags:
+ --help display usage message
+ -v, --verbose verbose output
+"
+
+verbose=
+for i
+do
+ value=$(expr "$i" : '[^=]*=\(.*\)')
+ case "$i" in
+ -h*|--help) echo "$usage"; exit 0;;
+ -v|--verbose) verbose=$i; shift;;
+ -*) echo "$ME: unrecognized option $i" >&2
+ echo "$usage" >&2
+ exit 1;;
+ *) break;;
+ esac
+done
+
+die () {
+ echo "$ME: $*" >&2
+ exit 1
+}
+
+function branch_dance() {
+ local branch="$1"
+
+ # User will appreciate seeing 'git' and 'make' commands, but nothing else
+ set -x
+ git checkout -t $branch
+ set +x
+
+ # Commit must be from dependabot
+ author=$(git show --no-patch --format='format:%an' HEAD)
+ if ! [[ $author =~ dependabot ]]; then
+ echo
+ echo "Commit author is '$author' (expected 'dependabot')"
+ echo -n "Continue? [y/N] "
+ read ans
+ case "$ans" in
+ [yY]*) ;;
+ *) exit 1;;
+ esac
+ fi
+
+ # This is what does all the work
+ set -x
+ make vendor-in-container
+ set +x
+
+ # Now make sure at least *something* changed under vendor
+ modified=$(git ls-files -m vendor)
+ if [[ -z "$modified" ]]; then
+ echo "No files changed under 'vendor' -- nothing to do!"
+ return
+ fi
+
+ # Okay, here we go
+ set -x
+ git add vendor
+ git commit -a --amend -s --no-edit
+ git push --force
+ set +x
+
+ # Try to leave things in relatively clean state; remove local branch copy
+ local tracking_branch=$(git branch --show-current)
+ git checkout master
+ git branch -d $tracking_branch
+}
+
+
+
+
+# Make sure we're cd'ed to the top level of a podman repo
+test -d .git || die "No .git subdirectory (please cd to top level)"
+
+# Clear all dependabot remote branches
+git branch -r | grep /dependabot/go_modules/ \
+ | xargs --no-run-if-empty git branch -r -d
+
+# ...and pull new ones
+git pull --all
+
+# Abort on any error from here on
+set -e
+
+# We cannot have any git-modified files
+modified=$(git ls-files -m)
+test -z "$modified" || die "Modified files exist: $modified"
+
+for branch in $(git branch -r | grep /dependabot/go_modules/); do
+ echo
+ echo ">>>>> $branch"
+ branch_dance $branch
+done