build: inline external Github Actions to unblock CI (#12241)

* build: inline cached-dependencies to unblock CI

* Run E2E on pull_request on;y

* Inline all external actions

* Checkout needed for internal actions

Also fixes pre-commit

* Add missing files

.github/actions/file-changes-action/src/InputHelper.ts

@@ -0,0 +1,120 @@
+import {warning as coreWarning, getInput as coreGetInput} from '@actions/core'
+import {context} from '@actions/github'
+import {Inferred} from 'typings/Inferred'
+import {Inputs} from 'typings/Inputs'
+import {getErrorString} from './UtilsHelper'
+
+/**
+ * @function getInputs
+ * @description reads the inputs to the action with core.getInput and returns object
+ * @returns {Inputs} object of inputs for the github action
+ */
+export function getInputs(): Inputs {
+  try {
+    const githubToken =
+      coreGetInput('githubToken') || process.env.GITHUB_TOKEN || false
+    if (!githubToken)
+      throw new Error(
+        getErrorString(
+          'getInputs Error',
+          500,
+          getInputs.name,
+          'Received no token, a token is a requirement.'
+        )
+      )
+    let prNumber
+    if (typeof context.issue.number !== 'undefined') {
+      if (
+        +coreGetInput('prNumber') !== context.issue.number &&
+        coreGetInput('prNumber')
+      ) {
+        prNumber = +coreGetInput('prNumber')
+      } else {
+        prNumber = context.issue.number
+      }
+    } else {
+      prNumber = +coreGetInput('prNumber') || NaN
+    }
+    return {
+      githubRepo:
+        coreGetInput('githubRepo') ||
+        `${context.repo.owner}/${context.repo.repo}`,
+      githubToken,
+      pushBefore:
+        coreGetInput('pushBefore') ||
+        (context.payload.before === undefined ? false : context.payload.before),
+      pushAfter:
+        coreGetInput('pushAfter') ||
+        (context.payload.after === undefined ? false : context.payload.after),
+      prNumber,
+      output: coreGetInput('output') || ' ',
+      fileOutput: coreGetInput('fileOutput') || ' ',
+      event: context.eventName
+    } as Inputs
+  } catch (error) {
+    const eString = `Received an issue getting action inputs.`
+    const retVars = Object.fromEntries(
+      Object.entries(process.env).filter(
+        key =>
+          key[0].includes('GITHUB') ||
+          key[0].includes('INPUT_') ||
+          key[0] === 'HOME'
+      )
+    )
+    throw new Error(
+      getErrorString('getInputs Error', 500, getInputs.name, eString, retVars)
+    )
+  }
+}
+/**
+ * @function inferInput
+ * @param before BASE commit sha to compare
+ * @param after HEAD commit sha to compare
+ * @param pr pr number to get changed files for
+ * @returns {Inferred} object of inferred input for the action
+ */
+export function inferInput(
+  before: string,
+  after: string,
+  pr: number
+): Inferred {
+  const event = context.eventName
+  const weirdInput = `Received event from ${event}, but also received a before(${before}) or after(${after}) value.\n I am assuming you want to use a Push event but forgot something, so I'm giving you a message.`
+  const allInput = `Received event from ${event}, but received a before(${before}), after(${after}), and PR(${pr}).\n I am assuming you want to use one or the other but I am giving you Push.`
+  if (event === 'pull_request') {
+    if (
+      before &&
+      after &&
+      (before !== context.payload.before || after !== context.payload.after)
+    )
+      return {before, after} // PR(push) - pull_request event with push inputs | PUSH
+    if (before || after) coreWarning(weirdInput) // PR(push) - pull_request event with single push input | PR*
+    return {pr} // PR - pull_request event with no push inputs | PR
+  }
+  if (event === 'push') {
+    if (pr) return {pr} // Push(PR) - push event with pr inputs | PR
+    return {before, after} // Push - push event with no pr inputs | PUSH
+  }
+  if (pr) {
+    if (before && after) {
+      coreWarning(allInput) // Not PR or Push - all inputs | PUSH*
+      if (event === 'issue_comment') return {before, after} // If you explicitly set a before/after in an issue comment it will return those
+      return {pr} // Not PR or Push - pr inputs | PR if a PR before and after assume its a synchronize and return the whole PR
+    }
+    if (before || after) coreWarning(weirdInput) // Not PR or Push - pull_request event with single push input | PR*
+    return {pr} // Not PR or Push - pr inputs | PR
+  }
+  if (before || after) {
+    if (!(before && after)) {
+      const eString = `Received event from ${event}, but only received a before(${before}) or after(${after}).\n I need both of these if you want to use a Push event.`
+      throw new Error(
+        getErrorString('inferInput Error', 500, inferInput.name, eString)
+      )
+    }
+    return {before, after} // Not PR or Push - push inputs | PUSH
+  }
+  const eString = `Received event from ${event}, but received no inputs. {event_name:${event}, pr: ${+pr}, before:${before}, after:${after}}`
+  throw new Error(
+    getErrorString('inferInput Error', 500, inferInput.name, eString)
+  )
+}