146 lines
2.9 KiB
Bash
Executable File
146 lines
2.9 KiB
Bash
Executable File
#!/bin/bash
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set -e
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if [ "$DEBUG" ]; then
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set -x
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fi
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function main() {
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cmd="$1"; shift
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case "$cmd" in
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info)
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cat <<-EOF
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repo: $(repo)
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branch: $(branch)
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env: $(current_env)
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EOF
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;;
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list)
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dashA="${1:-}"
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if [ "$dashA" = "-a" ]; then
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list_all_envs
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else
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list_all_envs | {
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while read path; do
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if store_stat "dagger/$(branch)" "$path" ; then
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echo "$path"
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fi
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done
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}
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fi
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;;
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*)
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dagger "$cmd" "$@"
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;;
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esac
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}
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function current_env() {
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if [ "$(ls -A | grep '^.*\.cue$')" ]; then
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git rev-parse --show-prefix
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fi
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}
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function repo() {
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git rev-parse --show-toplevel
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}
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function list_all_envs() {
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(
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cd $(repo)
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find . \
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-type f -name '*.cue' -exec dirname {} \; \
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-o \
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-type d -name 'cue.mod' -prune \
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| sed 's/^\.\///' | sort -u
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)
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}
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function branch() {
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git branch --show-current
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}
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function dagger() {
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local env="$(current_env)"
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if [ -z "$env" ]; then
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fatal "current directory is not a valid environment"
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fi
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tmpHome="$(mktemp -d)"
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tmpState="${tmpHome}/.dagger/store/my/deployment.json"
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mkdir -p "$(dirname $tmpState)"
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loadState "$env" > "$tmpState"
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HOME="$tmpHome" "$(which dagger)" -e "my" "$@"
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cat "$tmpState" | saveState "$env"
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}
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function cleanPath() {
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echo "$1" | sed -E 's/\/+/\//g'
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}
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function loadState() {
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local env="$1"
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local stateFile="$(cleanPath $env/state.json)"
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# echo >&2 "Loading state for $(branch)::$env"
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store_read "dagger/$(branch)" "$stateFile" |
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jq ".name=\"my\"" |
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jq ".plan.type=\"dir\"" |
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jq ".plan.dir.path=\"$(repo)/$env\"" |
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jq ".id=\"my\""
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}
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function saveState() {
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local env="$1"
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local stateFile="$(cleanPath $env/state.json)"
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# echo >&2 "Saving state for $(branch)::$env"
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newState="$(cat)"
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echo "$newState" | store_write "dagger/$(branch)" "$stateFile" "Write state for env $env"
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}
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function fatal() {
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echo >&2 "$@"
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exit 1
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}
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function store_read() {
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local \
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branch="$1" \
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path="$2"
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git cat-file -p "${branch}^{tree}:$path" 2>/dev/null || echo '{}'
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}
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function store_stat() {
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local \
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branch="$1" \
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path="$2"
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git cat-file -p "${branch}^{tree}:$path" >/dev/null 2>&1
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}
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function store_write() {
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local \
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branch="$1" \
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path="$2" \
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msg="${3:-write $path}"
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blob="$(git hash-object -w --stdin)" \
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idx="$(mktemp -d)/idx" \
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oldcommit="$(git show-ref "refs/$branch" -s || true)"
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# Load current state into index (will fail if state branch doesn't exist)
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GIT_INDEX_FILE="$idx" git read-tree "refs/$branch" 2>&1 || true
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GIT_INDEX_FILE="$idx" git \
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update-index \
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--add \
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--cacheinfo 100644 "$blob" "$path"
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# Create new tree object
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local newtree=$(GIT_INDEX_FILE="$idx" git write-tree)
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# Create new commit object
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if [ -z "$oldcommit" ]; then
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local newcommit="$(echo $msg | git commit-tree $newtree)"
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else
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local newcommit="$(echo $msg | git commit-tree $newtree -p $oldcommit)"
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fi
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git update-ref "refs/$branch" "$newcommit"
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}
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main "$@"
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