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Support workflows triggered by any event (#44)

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* Allow change detection on all event types

* mention commit SHA in docs for base parameter

* improve logging

* update CHANGELOG.md
This commit is contained in:
Michal Dorner 2020-10-16 12:28:12 +02:00 • committed by GitHub
parent 9bd03c0d68
commit 75cbfb4be9
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6 changed files with 71 additions and 43 deletions
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32
src/main.ts
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@ -62,19 +62,19 @@ async function getChangedFiles(token: string, base: string, initialFetchDepth: n
}
core.info('Github token is not available - changes will be detected from PRs merge commit')
return await git.getChangesInLastCommit()
} else if (github.context.eventName === 'push') {
return getChangedFilesFromPush(base, initialFetchDepth)
} else {
throw new Error('This action can be triggered only by pull_request, pull_request_target or push event')
return getChangedFilesFromGit(base, initialFetchDepth)
}
}
async function getChangedFilesFromPush(base: string, initialFetchDepth: number): Promise<File[]> {
const push = github.context.payload as Webhooks.WebhookPayloadPush
const defaultRef = push.repository?.default_branch
async function getChangedFilesFromGit(base: string, initialFetchDepth: number): Promise<File[]> {
const defaultRef = github.context.payload.repository?.default_branch
const beforeSha =
github.context.eventName === 'push' ? (github.context.payload as Webhooks.WebhookPayloadPush).before : null
const pushRef =
git.getShortName(push.ref) ||
git.getShortName(github.context.ref) ||
(core.warning(`'ref' field is missing in PUSH event payload - using current branch, tag or commit SHA`),
await git.getCurrentRef())
@ -85,17 +85,21 @@ async function getChangedFilesFromPush(base: string, initialFetchDepth: number):
)
}
// If base references same branch it was pushed to,
// we will do comparison against the previously pushed commit
if (baseRef === pushRef) {
if (!push.before) {
const isBaseRefSha = git.isGitSha(baseRef)
const isBaseSameAsPush = baseRef === pushRef
// If base is commit SHA will do comparison against the referenced commit
// Or If base references same branch it was pushed to, we will do comparison against the previously pushed commit
if (isBaseRefSha || isBaseSameAsPush) {
if (!isBaseRefSha && !beforeSha) {
core.warning(`'before' field is missing in PUSH event payload - changes will be detected from last commit`)
return await git.getChangesInLastCommit()
}
const baseSha = isBaseRefSha ? baseRef : beforeSha
// If there is no previously pushed commit,
// we will do comparison against the default branch or return all as added
if (push.before === git.NULL_SHA) {
if (baseSha === git.NULL_SHA) {
if (defaultRef && baseRef !== defaultRef) {
core.info(`First push of a branch detected - changes will be detected against the default branch ${defaultRef}`)
return await git.getChangesSinceMergeBase(defaultRef, initialFetchDepth)
@ -105,8 +109,8 @@ async function getChangedFilesFromPush(base: string, initialFetchDepth: number):
}
}
core.info(`Changes will be detected against the last previously pushed commit on same branch (${pushRef})`)
return await git.getChanges(push.before)
core.info(`Changes will be detected against commit (${baseSha})`)
return await git.getChanges(baseSha)
}
// Changes introduced by current branch against the base branch