write action

.gitignore

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+node_modules
+.idea

README.md

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 # arweave-publish-action
+
+Simple GitHub action to mirror documents onto Arweave.
+
+## Usage
+Add 'Arweave Publish' as a build step in your workflow file (e.g. `.github/workflows/deploy.yaml`)
+
+```yaml
+jobs:
+  deploy:
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build Link Index
+        uses: verses-xyz/[email protected]
+        with:
+          wallet-address: ...   # Public address for admin wallet
+          wallet-key: ...       # JSON Key for associated admin wallet
+          document-path: ...    # Path of document to mirror
+```

action.yml

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+name: 'Arweave Publish'
+description: 'Automatically publish documents to the permaweb'
+inputs:
+  wallet-address:
+    description: 'Public address for admin wallet'
+    required: true
+  wallet-key:
+    description: 'JSON Key for associated admin wallet'
+    required: true
+  document-path:
+    description: 'Path of document to mirror'
+    required: true
+outputs:
+  txId:
+    description: 'Transaction ID of uploaded document'
+runs:
+  using: 'node16'
+  main: 'index.js'

index.js

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+const core = require('@actions/core')
+const github = require('@actions/github')
+const fs = require('fs')
+const { ArweaveClient } = require('ar-wrapper')
+
+async function main() {
+  try {
+    const addr = core.getInput('wallet-address')
+    const key = core.getInput('wallet-key')
+    const path = core.getInput('document-path')
+    if (!(addr && key && path)) {
+      core.setFailed("document-path, wallet-address, and wallet-key all need to be passed!")
+      return
+    }
+
+    // init client
+    const client = new ArweaveClient(addr, key)
+    const docName = `${github.context.payload.repository.name}:${path}`
+
+    // get new content
+    const data = fs.readFileSync(path, 'utf8')
+
+    // todo: maybe hash to fixed size?
+    const docs = await client.getDocumentsByName(docName)
+    const latestDoc = docs.sort((a, b) => b.version - a.version)[0]
+
+    // update/add doc and return txId
+    const newDoc = latestDoc ? await latestDoc.update(data) : await client.addDocument(docName, data, {})
+    core.setOutput("txId", newDoc.txID)
+  } catch (error) {
+    core.setFailed(error.message)
+  }
+}
+
+main()
+