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Three corrections from @codex-reviewer-andresmgsl's review of 935a813.
1. `api="${GITHUB_API_URL:-https://api.github.com}"` guessed GitHub when the
variable was absent — driven with a recording curl, it reported success
after POSTing to api.github.com from this forge. That is the "Never
'probably github'" rule, and the same unset-environment refusal #201 just
established for docs-sync. It now refuses before any request, and the test
asserts zero calls were made: refusing after a POST is not refusing.
2. The "never silenced with || true" invariant was still asserted by grepping
the gh line this port removed, so it passed on any REST implementation
including one that swallows a failed POST. It is rebound behaviourally: a
curl that dies at the transport must fail the step. Doing that revealed the
step failed with a bare exit 7 and no sentence, so it now names the failure
— owning the diagnostic is the whole point of the surrounding code.
3. docs/CONSUMERS.md and both caller comments still described `gh workflow
run` as the mechanism. They describe the REST dispatch now, and the manual
bootstrap command carries a forge-neutral curl form beside the gh one: a
cross-forge runbook that sends this forge to a missing binary is wrong even
where the prose around it is right.
Refs #205
182 lines
8 KiB
Bash
Executable file
182 lines
8 KiB
Bash
Executable file
#!/usr/bin/env bash
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# The sweep dispatch in .github/workflows/labels.yml (#205).
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#
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# This EXTRACTS the shipped step's `run:` script and EXECUTES it against a
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# recording stub, rather than grepping the YAML for strings. A grep here would
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# pass on a step that assembles a perfect request and never sends it — the
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# shape of defect this repo keeps finding in its own tests. So every case
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# asserts on what the step actually sent, or on what it actually did when the
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# forge refused.
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set -uo pipefail
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ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
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# shellcheck source=test/harness.sh
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. "$ROOT/test/harness.sh"
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WORKFLOW="$ROOT/.github/workflows/labels.yml"
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TMP="$(mktemp -d)"
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trap 'rm -rf "${TMP:?}"' EXIT
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# --- the step under test, taken from the shipped workflow --------------------
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STEP="$TMP/step.sh"
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{
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printf '%s\n' '#!/usr/bin/env bash' 'set -e'
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yq -r '.jobs.trigger.steps[] | select(.name == "dispatch the sweep") | .run' "$WORKFLOW"
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} >"$STEP"
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chmod +x "$STEP"
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step_extracted() { [ "$(wc -l <"$STEP")" -ge 10 ]; }
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check "the step's script was extracted from the shipped workflow" 0 "" step_extracted
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# --- stubs -------------------------------------------------------------------
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# `curl` records every invocation and answers with the code the case wants. It
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# parses only what the step actually passes, so a step that stopped sending
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# `-d`, or changed the method, fails here rather than recording nothing.
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make_curl() { # make_curl <http-code> <body>
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cat >"$TMP/bin/curl" <<STUB
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#!/usr/bin/env bash
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method=GET; data=; url=; out=; write=
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while [ \$# -gt 0 ]; do
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case "\$1" in
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-X) method="\$2"; shift 2 ;;
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-d) data="\$2"; shift 2 ;;
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-o) out="\$2"; shift 2 ;;
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-w) write="\$2"; shift 2 ;;
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-H) printf '%s\n' "HEADER \$2" >>"$TMP/calls"; shift 2 ;;
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-fsS|-sS|-s) shift ;;
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*) url="\$1"; shift ;;
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esac
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done
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printf '%s\n' "METHOD \$method" "URL \$url" "DATA \$data" >>"$TMP/calls"
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# the default-branch read is a plain GET whose stdout the step pipes to jq
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if [ "\$method" = GET ]; then printf '{"default_branch":"trunk"}'; exit 0; fi
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[ -n "\$out" ] && printf '%s' '$2' >"\$out"
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[ -n "\$write" ] && printf '%s' '$1'
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exit 0
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STUB
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chmod +x "$TMP/bin/curl"
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}
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run_step() { # run_step <http-code> <body> [env assignments...]
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local code="$1" body="$2"
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shift 2
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rm -rf "${TMP:?}/bin"
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mkdir -p "$TMP/bin"
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: >"$TMP/calls"
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make_curl "$code" "$body"
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env PATH="$TMP/bin:$PATH" \
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GITHUB_TOKEN=tok \
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GITHUB_API_URL=https://forge.example/api/v1 \
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GITHUB_REPOSITORY=owner/repo \
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SWEEP_WORKFLOW=self-labels-sweep.yml \
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"$@" \
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"$STEP"
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}
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sent() { grep -h "^$1 " "$TMP/calls" | tail -1 | cut -d' ' -f2-; }
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sent_field() { jq -r "$1" <<<"$(sent DATA)"; }
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# --- the success path --------------------------------------------------------
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check "a 204 dispatch succeeds, naming what it woke and where" 0 \
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"sweep dispatched — self-labels-sweep.yml on main" \
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run_step 204 "" DEFAULT_BRANCH=main
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posted() { [ "$(sent METHOD)" = POST ]; }
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check "...by POST, not GET" 0 "" posted
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right_endpoint() {
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[ "$(sent URL)" = \
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"https://forge.example/api/v1/repos/owner/repo/actions/workflows/self-labels-sweep.yml/dispatches" ]
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}
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check "...to the dispatches endpoint of the workflow it was told to wake" 0 "" right_endpoint
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ref_is_main() { [ "$(sent_field .ref)" = main ]; }
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check "...carrying a ref, because REST has no default and refuses without one" 0 "" ref_is_main
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bootstrap_is_string_no() { [ "$(sent_field '.inputs.bootstrap')" = no ]; }
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check "...and bootstrap=no as a STRING input, not a bare flag" 0 "" bootstrap_is_string_no
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bearer_sent() { grep -qF 'HEADER Authorization: Bearer tok' "$TMP/calls"; }
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check "...under the bearer header both forges accept" 0 "" bearer_sent
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# --- the ref it must NOT inherit ---------------------------------------------
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# On pull_request_target GITHUB_REF_NAME is `<n>/merge`. A step that reaches
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# for it dispatches at something that is not a branch — and the forge answers
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# that with the opaque 500, so it would look like an outage.
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check "a pull_request_target run still dispatches at the branch" 0 "" \
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run_step 204 "" DEFAULT_BRANCH=main GITHUB_REF_NAME=203/merge
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ref_is_not_a_merge_ref() { case "$(sent_field .ref)" in *merge*) return 1 ;; *) return 0 ;; esac; }
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check "...never at its merge ref" 0 "" ref_is_not_a_merge_ref
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# --- the fallback ------------------------------------------------------------
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check "an absent default branch is read from the forge, not guessed" 0 "" \
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run_step 204 "" DEFAULT_BRANCH=
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ref_is_trunk() { [ "$(sent_field .ref)" = trunk ]; }
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check "...and the dispatch uses what the read returned" 0 "" ref_is_trunk
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# --- failure is loud, and the diagnostic is owned ----------------------------
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# `gh workflow run` failing WAS the misconfiguration alarm. The port keeps that
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# contract: a consumer missing the caller, its input, or `actions: write` must
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# fail here rather than sweep silently never again.
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check "an empty 500 fails the step — the alarm still rings" 1 \
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"/self-labels-sweep.yml/dispatches (ref=main)" \
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run_step 500 "" DEFAULT_BRANCH=main
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check "...explaining Forgejo's EMPTY 500 rather than passing it through" 1 \
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"empty 500 body from Forgejo means the workflow name or the ref did not resolve" \
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run_step 500 "" DEFAULT_BRANCH=main
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check "...and naming the consumer causes the alarm exists for" 1 "actions: write" \
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run_step 500 "" DEFAULT_BRANCH=main
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check "any non-204 fails, not only the statuses the API documents" 1 "forbidden" \
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run_step 403 '{"message":"forbidden"}' DEFAULT_BRANCH=main
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# --- the API root is not guessed ---------------------------------------------
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# Defaulting an unset GITHUB_API_URL to api.github.com sent this forge's
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# dispatch to GitHub and reported success (@codex-reviewer-andresmgsl). The
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# teeth are the call count: refusing AFTER a request is not refusing.
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run_step_no_api() {
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rm -rf "${TMP:?}/bin"; mkdir -p "$TMP/bin"; : >"$TMP/calls"
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make_curl 204 ""
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env PATH="$TMP/bin:$PATH" GITHUB_TOKEN=tok GITHUB_REPOSITORY=owner/repo \
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SWEEP_WORKFLOW=self-labels-sweep.yml DEFAULT_BRANCH=main "$STEP"
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}
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check "an unset GITHUB_API_URL refuses rather than guessing GitHub" 1 \
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"GITHUB_API_URL is unset" run_step_no_api
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no_calls_made() { [ ! -s "$TMP/calls" ]; }
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check "...having made zero requests: refusing after a POST is not refusing" 0 "" no_calls_made
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# --- a transport failure is not silence --------------------------------------
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# The old `|| true` invariant was asserted by grepping the gh line this port
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# removed, so it passed on any REST implementation including one that swallows
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# a failed POST (@codex-reviewer-andresmgsl). Driven instead: curl itself exits
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# non-zero, which `-w` cannot report because nothing is written.
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make_failing_curl() {
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printf '%s\n' '#!/usr/bin/env bash' 'echo "curl: (7) failed to connect" >&2' 'exit 7' \
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>"$TMP/bin/curl"
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chmod +x "$TMP/bin/curl"
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}
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run_step_curl_dies() {
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rm -rf "${TMP:?}/bin"; mkdir -p "$TMP/bin"; : >"$TMP/calls"
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make_failing_curl
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env PATH="$TMP/bin:$PATH" GITHUB_TOKEN=tok \
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GITHUB_API_URL=https://forge.example/api/v1 GITHUB_REPOSITORY=owner/repo \
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SWEEP_WORKFLOW=self-labels-sweep.yml DEFAULT_BRANCH=main "$STEP"
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}
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check "a POST that never reaches the forge fails the step, and says so" 1 \
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"never completed" run_step_curl_dies
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# A code-aware guard alongside the behavioural one: no swallowing operator on
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# the dispatch itself.
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never_silenced() { sed 's/#.*//' "$STEP" | grep -qE '\|\|[[:space:]]*true'; }
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check "...and the step carries no || true" 1 "" never_silenced
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# --- what the port removed ---------------------------------------------------
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# Strip comments first: the step's prose NAMES `gh workflow run` and
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# CEREMONY_FORGE_CLIENT to explain what it replaced, so a raw grep asserts on
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# the explanation instead of the code.
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step_code() { sed 's/#.*//' "$STEP"; }
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invokes_gh() { step_code | grep -qE '(^|[^[:alnum:]_])gh[[:space:]]'; }
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decides_forge() { step_code | grep -qE 'GITHUB_SERVER_URL|CEREMONY_FORGE_CLIENT'; }
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check "the step no longer INVOKES gh, its comments about it aside" 1 "" invokes_gh
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check "...and no longer decides a forge, because REST needs no branch" 1 "" decides_forge
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summary
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