podman

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#!/bin/bash
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#
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# This script is intended to help developers get buildah-tests-under-podman
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# working again in case of failure.
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#
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ME=$(basename $0)
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die() {
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    echo "$ME: $*" >&2
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    exit 1
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}
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# Confirm that we're in a test-buildah* subdir of podman
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whereami=$(basename $(pwd))
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if [[ ! $whereami =~ test-buildah-v ]]; then
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    die "Please run me while cd'ed to a test-buildah-vN.M directory"
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fi
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# FIXME: check that git repo is buildah
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git remote -v | grep -q '[BUILDAHREPO]' \
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    || die "This does not look like a buildah repo (git remote -v)"
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# We could do the commit automatically, but it's prudent to require human
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# involvement.
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modified=$(git status --untracked=no --porcelain)
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if [[ -n "$modified" ]]; then
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    echo $modified
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    die "Please commit your changes: git commit --amend --all"
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fi
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# Remove any 00??-*.patch files
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rm -f 0001-*.patch
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# Check count of commits, barf if need to squash
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n_commits=$(git log --pretty=format:%h [BASETAG]..HEAD | wc -l)
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if [[ $n_commits -gt 1 ]]; then
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    die "Please squash your commits"
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fi
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# Scope check: make sure the only files changed is helpers.bash
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changes=$(git diff --name-status [BASETAG]..HEAD | grep -E -v '\stests/helpers.bash')
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if [[ -n "$changes" ]]; then
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    echo $changes
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    die "Found modified files other than 'tests/helpers.bash'"
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fi
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###############################################################################
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# All right - things look good. Generate the patch, and copy it into place.
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git format-patch [BASETAG]
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# Once again, make sure there's exactly one and only one commit
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shopt -s nullglob
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patch2=$(echo 0002-*.patch)
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if [[ -n "$patch2" ]]; then
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    die "Internal error: I thought I checked for squashed commits, but still see $patch2"
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fi
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# All looks good. We can now copy that patch into its proper place in the
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# podman repo.
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cp 0001-*.patch ../test/buildah-bud/buildah-tests.diff
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