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Update GitHub Actions workflows. (#473)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,365 @@ | ||
| #!/usr/bin/env bash | ||
| # WARNING: This file is autogenerated - changes will be overwritten if not made via https://github.com/pulumi/ci-mgmt | ||
|
|
||
| set -e | ||
|
|
||
| original_exec="$0" | ||
| original_cmd="$1" | ||
|
|
||
| usage() { | ||
| cat <<EOF | ||
| NAME | ||
| upstream.sh - Manages applying patches to the upstream submodule. | ||
| SYNOPSIS | ||
| ${original_exec} <init|checkout|rebase|format_patches|check_in|help> [options] | ||
| COMMANDS | ||
| init [-f] Initialize the upstream submodule and applies the | ||
| patches to the working directory. | ||
| checkout [-f] Create a branch in the upstream repository with the | ||
| patches applied as commits. | ||
| rebase [-o] [-i] Rebase the checked out patches. | ||
| format_patches Write checkedout commits back to patches. | ||
| check_in Write checkedout commits back to patches, add upstream | ||
| and patches changes to the git staging area and exit | ||
| checkout mode. | ||
| help Print this help message, plus examples. | ||
| OPTIONS | ||
| -f Force the command to run even if the upstream submodule is modified | ||
| -o The new base commit to rebase the patches on top of | ||
| -i Run the rebase command interactively | ||
| -h Print this help message, plus examples | ||
| EOF | ||
| } | ||
|
|
||
| extended_docs() { | ||
| cat <<EOF | ||
| DESCRIPTION | ||
| We want to maintain changes to the upstream repository in a way that is easy | ||
| to manage and track. Rather than creating a fork of the upstream repository, | ||
| we maintain a set of patches (in the 'patches' directory) that we can apply | ||
| directly to the upstream code in the 'upstream' submodule. Our patches are | ||
| never pushed to the remote upstream repository. | ||
| EXAMPLES | ||
| Discard all changes in upstream and reapply patches to the working directory: | ||
| ${original_exec} init -f | ||
| Moving the patches to a new base commit: | ||
| ${original_exec} checkout | ||
| ${original_exec} rebase -o <new_base_commit> | ||
| ${original_exec} format_patches | ||
| Interactively edit the patches: | ||
| ${original_exec} checkout | ||
| ${original_exec} rebase -i | ||
| ${original_exec} format_patches | ||
| EOF | ||
| } | ||
|
|
||
| assert_upstream_exists() { | ||
| if [[ ! -d upstream ]]; then | ||
| echo "No 'upstream' directory detected. Aborting." | ||
| exit 1 | ||
| fi | ||
| } | ||
|
|
||
| # Check the upstream submodule isn't modified in the working tree | ||
| assert_upstream_tracked() { | ||
| status=$(git status --porcelain upstream) | ||
| if [[ ${status} == *"M upstream" ]]; then | ||
| current_branch=$(cd upstream && git --no-pager rev-parse --abbrev-ref HEAD) | ||
| if [[ "${current_branch}" == "pulumi/patch-checkout" ]]; then | ||
| cat <<EOF | ||
| Error: The 'upstream' submodule is modified with untracked changes. | ||
| Currently checked out on the 'pulumi/patch-checkout' branch. This was likely caused by | ||
| running a 'checkout' command and not running 'format_patches' afterwards. | ||
| To turn the commits in the 'pulumi/patch-checkout' branch back into patches, run the | ||
| 'format_patches' command. | ||
| To disgard changes in the 'pulumi/patch-checkout' branch, use the 'force' flag (-f): | ||
| ${original_exec} ${original_cmd} -f | ||
| EOF | ||
| exit 1 | ||
| fi | ||
| echo "Error: The 'upstream' submodule is modified but not tracked." | ||
| echo "${current_branch}" | ||
| git submodule status upstream | ||
| cat <<EOF | ||
| Either stage or reset the 'upstream' submodule changes before continuing: | ||
| git add upstream | ||
| # or # | ||
| git checkout upstream | ||
| EOF | ||
| exit 1 | ||
| fi | ||
| } | ||
|
|
||
| assert_is_checked_out() { | ||
| current_branch=$(cd upstream && git --no-pager rev-parse --abbrev-ref HEAD) | ||
| if [[ "${current_branch}" != "pulumi/patch-checkout" ]]; then | ||
| echo "Expected upstream to be checked out on the 'pulumi/patch-checkout' branch, but ${current_branch} is checked out." | ||
| exit 1 | ||
| fi | ||
| } | ||
|
|
||
| assert_no_rebase_in_progress() { | ||
| # Use git to resolve the possible location of files indicating a rebase might be in progress. | ||
| rebase_merge_dir=$(cd upstream && git rev-parse --git-path rebase-merge) | ||
| rebase_apply_dir=$(cd upstream && git rev-parse --git-path rebase-apply) | ||
|
|
||
| if [[ -d "${rebase_merge_dir}" ]] || [[ -d "${rebase_apply_dir}" ]]; then | ||
| echo "rebase still in progress in './upstream'. Please resolve the rebase in" | ||
| exit 1 | ||
| fi | ||
| } | ||
|
|
||
| err_failed_to_apply() { | ||
| cat <<EOF | ||
| Failed to apply $1. | ||
| Hint: to avoid conflicts when updating the upstream submodule, use the | ||
| following commands: | ||
| 1. '${original_exec} checkout' to create a branch with the patches applied as commits | ||
| 2. '${original_exec} rebase -o <new_base_commit>' to rebase the patches on top of the | ||
| new upstream commit. Resolve any conflicts and continue the rebase to completion. | ||
| 3. '${original_exec} check_in' to create an updated set of patches from the commits | ||
| Reset the upstream submodule to the previous known good upstream commit before | ||
| trying again. This can be done with: | ||
| (cd upstream && git reset --hard <last_known_good_commit>) | ||
| git add upstream | ||
| EOF | ||
| exit 1 | ||
| } | ||
|
|
||
| apply_patches() { | ||
| # Iterating over the patches folder in sorted order, | ||
| # apply the patch using a 3-way merge strategy. This mirrors the default behavior of 'git merge' | ||
| cd upstream | ||
| for patch in ../patches/*.patch; do | ||
| if ! git apply --3way "${patch}" --allow-empty; then | ||
| err_failed_to_apply "$(basename "${patch}")" | ||
| fi | ||
| done | ||
| } | ||
|
|
||
| init() { | ||
| # Parse additional flags | ||
| while getopts "f" flag; do | ||
| case "${flag}" in | ||
| f) force="true";; | ||
| *) echo "Unexpected option ${flag}"; exit 1;; | ||
| esac | ||
| done | ||
|
|
||
| assert_upstream_exists | ||
|
|
||
| if [[ "${force}" != "true" ]]; then | ||
| assert_upstream_tracked | ||
| else | ||
| echo "Warning: forcing init command to run even if the upstream submodule is modified." | ||
| fi | ||
|
|
||
| git submodule update --force --init | ||
| apply_patches | ||
| } | ||
|
|
||
| checkout() { | ||
| # Parse additional flags | ||
| while getopts "f" flag; do | ||
| case "${flag}" in | ||
| f) force="true";; | ||
| *) echo "Unexpected option ${flag}"; exit 1;; | ||
| esac | ||
| done | ||
|
|
||
| assert_upstream_exists | ||
|
|
||
| if [[ "${force}" != "true" ]]; then | ||
| assert_upstream_tracked | ||
| else | ||
| echo "Warning: forcing checkout command to run even if the upstream submodule is modified." | ||
| fi | ||
|
|
||
| git submodule update --force --init | ||
| cd upstream | ||
| if [[ "${force}" == "true" ]]; then | ||
| echo "Cleaning up any previous branches" | ||
| git branch -D pulumi/patch-checkout | ||
| git branch -D pulumi/checkout-base | ||
| git branch -D pulumi/original-base | ||
| fi | ||
| # Clean up any previous in-progress rebases. | ||
| rebase_merge_dir=$(git rev-parse --git-path rebase-merge) | ||
| rebase_apply_dir=$(git rev-parse --git-path rebase-apply) | ||
| rm -rf "${rebase_merge_dir}" | ||
| rm -rf "${rebase_apply_dir}" | ||
| git fetch --all | ||
|
|
||
| # Set the 'pulumi/checkout-base' branch to the current commit of the upstream repository | ||
| # This is used to track the base commit of the patches | ||
| # If rebasing, then this must be moved to the new base commit. | ||
| git branch -f pulumi/checkout-base | ||
| # Create a new branch 'pulumi/patch-checkout' which will contain the commits for each patch | ||
| git checkout -B pulumi/patch-checkout | ||
|
|
||
| for patch in ../patches/*.patch; do | ||
| if ! git am --3way "${patch}"; then | ||
| err_failed_to_apply "$(basename "${patch}")" | ||
| fi | ||
| done | ||
|
|
||
| cat <<EOF | ||
| The patches have been checked out as commits in the './upstream' repository. | ||
| The 'pulumi/patch-checkout' branch is pointing to the last patch. | ||
| The 'pulumi/checkout-base' branch is pointing to the base commit of the patches. | ||
| To interactively edit the commits: | ||
| ${original_exec} rebase -i | ||
| To change the base of the patches: | ||
| ${original_exec} rebase -o <new_base_commit> | ||
| Once you have finished editing the commits, run | ||
| ${original_exec} check_in | ||
| EOF | ||
| } | ||
|
|
||
| rebase() { | ||
| # Parse additional flags | ||
| onto="pulumi/checkout-base" | ||
| interactive="false" | ||
| while getopts "io:" flag; do | ||
| case "${flag}" in | ||
| i) interactive="true";; | ||
| o) onto="${OPTARG}";; | ||
| *) echo "Unexpected option ${flag}"; exit 1;; | ||
| esac | ||
| done | ||
|
|
||
| assert_is_checked_out | ||
|
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||
| cd upstream | ||
| # Fetch the latest changes from the upstream repository | ||
| git fetch --all | ||
| # Set the "pulumi/original-base" branch to the current base commit of the patches | ||
| git branch -f pulumi/original-base pulumi/checkout-base | ||
| # Set the "pulumi/patch-checkout" branch to track the "pulumi/original-base" branch | ||
| git branch --set-upstream-to=pulumi/original-base pulumi/patch-checkout | ||
| # Set the "pulumi/checkout-base" branch to the new base commit ready for formatting the patches after | ||
| git branch -f pulumi/checkout-base "${onto}" | ||
| # Rebase the 'pulumi/patch-checkout' branch on top of the new base commit | ||
| interactive_flag="" | ||
| if [[ "${interactive}" == "true" ]]; then | ||
| interactive_flag="--interactive" | ||
| fi | ||
| if ! git rebase --onto "${onto}" ${interactive_flag}; then | ||
| echo "Rebase failed. Please resolve the conflicts and run 'git rebase --continue' in the upstream directory." | ||
| exit 1 | ||
| fi | ||
| cd .. | ||
| } | ||
|
|
||
| export_patches() { | ||
| # Remove all existing patches before creating the new ones in case they've been renamed or removed. | ||
| rm -f patches/*.patch | ||
|
|
||
| # Extract patches from the commits in the 'pulumi/patch-checkout' branch into the 'patches' directory. | ||
| # Use the 'pulumi/checkout-base' branch to determine the base commit of the patches. | ||
| (cd upstream && git format-patch pulumi/checkout-base -o ../patches --zero-commit --no-signature --no-stat --no-numbered) | ||
| } | ||
|
|
||
| format_patches() { | ||
| assert_upstream_exists | ||
| assert_is_checked_out | ||
| assert_no_rebase_in_progress | ||
|
|
||
| export_patches | ||
| cat <<EOF | ||
| Patches have been created in the 'patches' directory. If you've made changes to | ||
| the base, ensure you add 'upstream' to the git stage before running 'init -f' | ||
| to exit the checkout mode. | ||
| EOF | ||
| } | ||
|
|
||
| check_in() { | ||
| assert_upstream_exists | ||
| assert_is_checked_out | ||
| assert_no_rebase_in_progress | ||
|
|
||
| export_patches | ||
| # Check out the new base of the patches | ||
| (cd upstream && git checkout pulumi/checkout-base) | ||
|
|
||
| # Add the patches and upstream changes to the git staging area | ||
| git add patches upstream | ||
| # Exit the checkout mode and re-initialize the upstream submodule | ||
| git submodule update --force --init | ||
| apply_patches | ||
| cat <<EOF | ||
| Changes to patches and upstream have been staged, exited checkout mode and | ||
| re-initializing using updated patches and updated upstream base. | ||
| EOF | ||
| } | ||
|
|
||
| if [[ -z ${original_cmd} ]]; then | ||
| echo "Error: command is required." | ||
| echo | ||
| usage | ||
| extended_docs | ||
| exit 1 | ||
| fi | ||
| # Check for help flag and short-circuit to print usage. | ||
| for arg in "$@"; do | ||
| case ${arg} in | ||
| "help"|"-h"|"--help") | ||
| usage | ||
| extended_docs | ||
| exit 0 | ||
| ;; | ||
| *) | ||
| ;; | ||
| esac | ||
| done | ||
|
|
||
| # Remove the command argument from the list of arguments to pass to the command. | ||
| shift | ||
| case ${original_cmd} in | ||
| init) | ||
| init "$@" | ||
| ;; | ||
| checkout) | ||
| checkout "$@" | ||
| ;; | ||
| rebase) | ||
| rebase "$@" | ||
| ;; | ||
| format_patches) | ||
| format_patches "$@" | ||
| ;; | ||
| check_in) | ||
| check_in "$@" | ||
| ;; | ||
| *) | ||
| echo "Error: unknown command \"${original_cmd}\"." | ||
| echo | ||
| usage | ||
| exit 1 | ||
| ;; | ||
| esac |