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feat: Add migration fixer script (for branches) #6282

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feat: Add migration fixer script (for branches) #6282

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8d862e9
feat: Add migration fixer script (for branches)
mafredri Feb 20, 2023
f993e8c
Fetch and use origin/main
mafredri Feb 20, 2023
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95 changes: 95 additions & 0 deletions coderd/database/migrations/fix_migration_numbers.sh
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Original file line number Diff line number Diff line change
@@ -0,0 +1,95 @@
#!/bin/bash
set -euo pipefail

SCRIPT_DIR=$(dirname "${BASH_SOURCE[0]}")

list_migrations() {
branch=$1
git ls-tree -r --name-only "${branch}" -- . | grep -E '[0-9]{6}.*' | sort -n
}

main() {
cd "${SCRIPT_DIR}"

echo "Fetching origin/main..."
git fetch -u origin main

curr_num=$(
set -e
list_migrations origin/main | grep '^[0-9]' | tail -n1
)
echo "Last migration (main): ${curr_num}"
next_num=$(("1${curr_num:0:6}" - 1000000 + 1))
curr_num=$(printf "%06d" "${next_num}")
echo "Next migration number: ${curr_num}"

main_files="$(
set -e
list_migrations origin/main
)"
head_files="$(
set -e
list_migrations HEAD
)"

declare -A prefix_map=()
declare -a git_add_files=()

# Renumber migrations part of this branch (as compared to main)
diff_files="$(diff -u <(echo "${main_files}") <(echo "${head_files}") | sed -E -ne 's;^\+(0.*);\1;p' | sort -n || true)"
if [[ -z "${diff_files}" ]]; then
echo "No migrations to rename, exiting."
return
fi
while read -r file; do
old_file="${file}"
dir=$(dirname "${file}")
file=$(basename "${file}")
num="${file:0:6}"
set +u
new_num="${prefix_map["${num}"]}"
set -u
if [[ -z "${new_num}" ]]; then
new_num="${curr_num}"
prefix_map["${num}"]="${new_num}"
next_num=$((next_num + 1))
curr_num=$(printf "%06d" "${next_num}")
fi
name="${file:7:-4}"
new_file="${new_num}_${name}.sql"
echo "Renaming ${old_file} to ${new_file}"
mv "${old_file}" "${new_file}"
git_add_files+=("${new_file}" "${old_file}")
done <<<"${diff_files}"

# Renumber fixtures if there's a matching migration in this branch (as compared to main).
diff_files="$(diff -u <(echo "${main_files}") <(echo "${head_files}") | sed -E -ne 's;^\+(testdata/[^/]*/0.*);\1;p' | sort -n || true)"
if [[ -z "${diff_files}" ]]; then
echo "No testdata fixtures to rename, skipping."
return
fi
while read -r file; do
old_file="${file}"
dir=$(dirname "${file}")
file=$(basename "${file}")
num="${file:0:6}"
set +u
new_num="${prefix_map["${num}"]}"
set -u
if [[ -z "${new_num}" ]]; then
echo "Skipping ${old_file}, no matching migration in ${SCRIPT_DIR}"
continue
fi
name="${file:7:-4}"
new_file="${dir}/${new_num}_${name}.sql"
echo "Renaming ${old_file} to ${new_file}"
mv "${old_file}" "${new_file}"
git_add_files+=("${new_file}" "${old_file}")
done <<<"${diff_files}"

git add "${git_add_files[@]}"
git status
echo "Run 'git commit' to commit the changes."
}

(main "$@")