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feat: allows to specify context to fetch git data

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Signed-off-by: Emilien Escalle <emilien.escalle@escemi.com>
This commit is contained in:
Emilien Escalle
2022-12-15 14:46:34 +01:00
parent 9ec57ed1fc
commit 8f8c795666
9 changed files with 177 additions and 73 deletions
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46
src/meta.ts
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@@ -32,22 +32,6 @@ export class Meta {
private readonly date: Date;
constructor(inputs: Inputs, context: Context, repo: GitHubRepo) {
// Needs to override Git reference with pr ref instead of upstream branch ref
// for pull_request_target event
// https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target
if (/pull_request_target/.test(context.eventName)) {
context.ref = `refs/pull/${context.payload.number}/merge`;
}
// DOCKER_METADATA_PR_HEAD_SHA env var can be used to set associated head
// SHA instead of commit SHA that triggered the workflow on pull request
// event.
if (/true/i.test(process.env.DOCKER_METADATA_PR_HEAD_SHA || '')) {
if ((/pull_request/.test(context.eventName) || /pull_request_target/.test(context.eventName)) && context.payload?.pull_request?.head?.sha != undefined) {
context.sha = context.payload.pull_request.head.sha;
}
}
this.inputs = inputs;
this.context = context;
this.repo = repo;
@@ -373,53 +357,53 @@ export class Meta {
}
private setGlobalExp(val): string {
const ctx = this.context;
const context = this.context;
const currentDate = this.date;
return handlebars.compile(val)({
branch: function () {
if (!/^refs\/heads\//.test(ctx.ref)) {
if (!/^refs\/heads\//.test(context.ref)) {
return '';
}
return ctx.ref.replace(/^refs\/heads\//g, '');
return context.ref.replace(/^refs\/heads\//g, '');
},
tag: function () {
if (!/^refs\/tags\//.test(ctx.ref)) {
if (!/^refs\/tags\//.test(context.ref)) {
return '';
}
return ctx.ref.replace(/^refs\/tags\//g, '');
return context.ref.replace(/^refs\/tags\//g, '');
},
sha: function () {
return ctx.sha.substring(0, 7);
return context.sha.substring(0, 7);
},
base_ref: function () {
if (/^refs\/tags\//.test(ctx.ref) && ctx.payload?.base_ref != undefined) {
return ctx.payload.base_ref.replace(/^refs\/heads\//g, '');
if (/^refs\/tags\//.test(context.ref) && context.payload?.base_ref != undefined) {
return context.payload.base_ref.replace(/^refs\/heads\//g, '');
}
// FIXME: keep this for backward compatibility even if doesn't always seem
// to return the expected branch. See the comment below.
if (/^refs\/pull\//.test(ctx.ref) && ctx.payload?.pull_request?.base?.ref != undefined) {
return ctx.payload.pull_request.base.ref;
if (/^refs\/pull\//.test(context.ref) && context.payload?.pull_request?.base?.ref != undefined) {
return context.payload.pull_request.base.ref;
}
return '';
},
is_default_branch: function () {
const branch = ctx.ref.replace(/^refs\/heads\//g, '');
const branch = context.ref.replace(/^refs\/heads\//g, '');
// TODO: "base_ref" is available in the push payload but doesn't always seem to
// return the expected branch when the push tag event occurs. It's also not
// documented in GitHub docs: https://docs.github.com/en/developers/webhooks-and-events/webhooks/webhook-events-and-payloads#push
// more context: https://github.com/docker/metadata-action/pull/192#discussion_r854673012
// if (/^refs\/tags\//.test(ctx.ref) && ctx.payload?.base_ref != undefined) {
// branch = ctx.payload.base_ref.replace(/^refs\/heads\//g, '');
// if (/^refs\/tags\//.test(context.ref) && context.payload?.base_ref != undefined) {
// branch = context.payload.base_ref.replace(/^refs\/heads\//g, '');
// }
if (branch == undefined || branch.length == 0) {
return 'false';
}
if (ctx.payload?.repository?.default_branch == branch) {
if (context.payload?.repository?.default_branch == branch) {
return 'true';
}
// following events always trigger for last commit on default branch
// https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows
if (/create/.test(ctx.eventName) || /discussion/.test(ctx.eventName) || /issues/.test(ctx.eventName) || /schedule/.test(ctx.eventName)) {
if (/create/.test(context.eventName) || /discussion/.test(context.eventName) || /issues/.test(context.eventName) || /schedule/.test(context.eventName)) {
return 'true';
}
return 'false';