plan a charm file resource built by script called 'build-resource.sh'

src/build.ts

@@ -135,6 +135,32 @@ interface BuildDockerImageParams {
   token: string
 }
 
+async function buildFileResource(plan: BuildPlan): Promise<void> {
+  core.startGroup(`Build resource {plan.name}`)
+  await exec.exec('./build-resource.sh', [plan.name, plan.source_file], {
+    cwd: plan.source_directory
+  })
+  core.endGroup()
+  const resourceFiles = await (
+    await glob.create(path.join(plan.source_directory, plan.source_file))
+  ).glob()
+  const artifact = new DefaultArtifactClient()
+  const manifestFile = path.join(plan.source_directory, 'manifest.json')
+  fs.writeFileSync(
+    manifestFile,
+    JSON.stringify(
+      { name: plan.name, files: resourceFiles.map(f => path.basename(f)) },
+      null,
+      2
+    )
+  )
+  await artifact.uploadArtifact(
+    plan.output,
+    [...resourceFiles, manifestFile],
+    plan.source_directory
+  )
+}
+
 async function buildDockerImage({
   plan,
   user,
@@ -366,6 +392,8 @@ export async function run(): Promise<void> {
           user: github.context.actor,
           token: core.getInput('github-token')
         })
+      case 'file':
+        await buildFileResource(plan)
     }
   } catch (error) {
     // Fail the workflow run if an error occurs

src/model.ts

@@ -7,10 +7,17 @@ export interface Plan {
 }
 
 export interface BuildPlan {
-  type: 'charm' | 'rock' | 'docker-image'
+  type: 'charm' | 'rock' | 'docker-image' | 'file'
   name: string
   source_file: string
   source_directory: string
   output_type: 'file' | 'registry'
   output: string
 }
+
+export interface CharmResource {
+  type: 'file' | 'oci-image'
+  description?: string
+  filename?: string
+  'upstream-source'?: string
+}

src/plan-integration.ts

@@ -23,17 +23,18 @@ export async function run(): Promise<void> {
       const manifest = JSON.parse(
         fs.readFileSync(path.join(tmp, 'manifest.json'), { encoding: 'utf-8' })
       ) as object
-      if (build.type === 'charm') {
+      if (build.type === 'charm' || build.type === 'file') {
         // @ts-ignore
         for (const file of manifest.files) {
           fs.renameSync(
             path.join(tmp, file),
             path.join(plan.working_directory, file)
           )
-          args.push(`--charm-file=./${file}`)
+          let argName: string =
+            build.type === 'charm' ? 'charm-file' : 'charm-resource'
+          args.push(`--${argName}=${plan.working_directory}/${file}`)
         }
-      }
-      if (build.type === 'rock' || build.type == 'docker-image') {
+      } else if (build.type === 'rock' || build.type == 'docker-image') {
         // @ts-ignore
         const name = manifest.name as string
         if ('files' in manifest) {

src/plan.ts

@@ -7,7 +7,7 @@ import * as path from 'path'
 import * as yaml from 'js-yaml'
 import * as fs from 'fs'
 import * as github from '@actions/github'
-import { Plan, BuildPlan } from './model'
+import { Plan, BuildPlan, CharmResource } from './model'
 import { DefaultArtifactClient } from '@actions/artifact'
 import * as os from 'os'
 
@@ -34,6 +34,7 @@ async function planBuildCharm(
   workingDir: string,
   id: string
 ): Promise<BuildPlan[]> {
+  core.info(`Planning charms: ${workingDir}`)
   const allCharmcraftFiles = await (
     await glob.create(path.join(workingDir, '**', 'charmcraft.yaml'))
   ).glob()
@@ -82,6 +83,7 @@ async function planBuildRock(
   id: string,
   outputType: 'file' | 'registry'
 ): Promise<BuildPlan[]> {
+  core.info(`Planning rock image resources: ${workingDir}`)
   const rockcraftFiles = await (
     await glob.create(path.join(workingDir, '**', 'rockcraft.yaml'))
   ).glob()
@@ -108,6 +110,7 @@ async function planBuildDockerImage(
   id: string,
   outputType: 'file' | 'registry'
 ): Promise<BuildPlan[]> {
+  core.info(`Planning docker image resources: ${workingDir}`)
   const dockerFiles = await (
     await glob.create(path.join(workingDir, '**', '*.Dockerfile'))
   ).glob()
@@ -127,6 +130,84 @@ async function planBuildDockerImage(
   })
 }
 
+async function planBuildFileResource(
+  workingDir: string,
+  id: string
+): Promise<BuildPlan[]> {
+  core.info(`Planning build file resources: ${workingDir}`)
+  const allCharmcraftFiles = await (
+    await glob.create(path.join(workingDir, '**', 'charmcraft.yaml'))
+  ).glob()
+  const charmcraftFiles = allCharmcraftFiles.filter(
+    file =>
+      !path.normalize(path.relative(workingDir, file)).startsWith('tests/')
+  )
+  return charmcraftFiles.flatMap((charmcraftFile: string) => {
+    const file = path.join(
+      workingDir,
+      path.relative(workingDir, charmcraftFile)
+    )
+    const charmcraft = yaml.load(
+      fs.readFileSync(charmcraftFile, { encoding: 'utf-8' })
+    ) as object
+
+    let charmName: string
+    if ('name' in charmcraft) {
+      charmName = charmcraft['name'] as string
+    } else {
+      const metadataFile = path.join(
+        path.dirname(charmcraftFile),
+        'metadata.yaml'
+      )
+      const metadata = yaml.load(
+        fs.readFileSync(metadataFile, { encoding: 'utf-8' })
+      ) as object
+      if (!('name' in metadata)) {
+        throw new Error(`unknown charm name (${workingDir})`)
+      }
+      charmName = metadata['name'] as string
+    }
+
+    let resources: Map<string, CharmResource> = new Map()
+    if ('resources' in charmcraft) {
+      resources = charmcraft['resources'] as Map<string, CharmResource>
+    } else {
+      const metadataFile = path.join(
+        path.dirname(charmcraftFile),
+        'metadata.yaml'
+      )
+      const metadata = yaml.load(
+        fs.readFileSync(metadataFile, { encoding: 'utf-8' })
+      ) as object
+      if ('resources' in metadata) {
+        resources = metadata['resources'] as Map<string, CharmResource>
+      }
+    }
+    core.info(
+      `Processing: charm: ${charmName} resources: ${JSON.stringify(resources)}`
+    )
+
+    return Object.entries(resources).reduce(
+      (acc, [resourceName, resource]: [string, CharmResource]) => {
+        if (resource.type === 'file' && resource.filename) {
+          acc.push({
+            type: 'file',
+            name: resourceName,
+            source_file: resource.filename,
+            source_directory: path.dirname(file),
+            output_type: 'file',
+            output: sanitizeArtifactName(
+              `${id}__build__output__file__${charmName}__${resourceName}`
+            )
+          })
+        }
+        return acc
+      },
+      [] as BuildPlan[]
+    )
+  })
+}
+
 async function planBuild(
   workingDir: string,
   id: string,
@@ -135,7 +216,8 @@ async function planBuild(
   return [
     ...(await planBuildCharm(workingDir, id)),
     ...(await planBuildRock(workingDir, id, imageOutputType)),
-    ...(await planBuildDockerImage(workingDir, id, imageOutputType))
+    ...(await planBuildDockerImage(workingDir, id, imageOutputType)),
+    ...(await planBuildFileResource(workingDir, id))
   ]
 }
 

src/publish.ts

@@ -146,11 +146,12 @@ class Publish {
     throw new Error(`can't find plan artifact for workflow run ${runId}`)
   }
 
-  async getImageResources(): Promise<string[]> {
+  async getCharmResources(): Promise<[string[], string[]]> {
     interface Metadata {
       resources?: {
         [name: string]: {
           type: string
+          filename?: string
           'upstream-source'?: string
         }
       }
@@ -185,15 +186,69 @@ class Publish {
     }
     const resources = metadata.resources
     if (resources === undefined) {
-      return []
+      return [[], []]
     }
-    return Object.keys(resources).filter(
+    let images = Object.keys(resources).filter(
       k => resources[k].type === 'oci-image' && !resources[k]['upstream-source']
     )
+    let files = Object.keys(resources).filter(k => resources[k].type === 'file')
+    return [images, files]
+  }
+
+  async getFiles(): Promise<Map<string, string>> {
+    const [, resources] = await this.getCharmResources()
+    core.info(`required resources: ${resources}`)
+    const upload: Map<string, string> = new Map()
+    if (resources.length === 0) {
+      return upload
+    }
+    const runId = await this.findWorkflowRunId()
+    const plan = await this.getPlan(runId)
+    for (const build of plan.build) {
+      if (build.type === 'file') {
+        const resourceName = this.resourceMapping[build.name]
+        if (!resources.includes(resourceName)) {
+          core.info(`skip uploading file: ${build.name}`)
+          continue
+        }
+        const tmp = this.mkdtemp()
+        const artifact = await this.artifact.getArtifact(build.output, {
+          findBy: {
+            token: this.token,
+            repositoryOwner: github.context.repo.owner,
+            repositoryName: github.context.repo.repo,
+            workflowRunId: runId
+          }
+        })
+        await this.artifact.downloadArtifact(artifact.artifact.id, {
+          path: tmp,
+          findBy: {
+            token: this.token,
+            repositoryOwner: github.context.repo.owner,
+            repositoryName: github.context.repo.repo,
+            workflowRunId: runId
+          }
+        })
+        const manifest = JSON.parse(
+          fs.readFileSync(path.join(tmp, 'manifest.json'), {
+            encoding: 'utf-8'
+          })
+        )
+        const files = manifest.files as string[]
+        if (files.length !== 1) {
+          throw new Error(
+            `file resource ${build.name} contain multiple candidates: ${files}`
+          )
+        }
+        const file = files[0]
+        upload.set(resourceName, file)
+      }
+    }
+    return upload
   }
 
   async getImages(): Promise<Map<string, string>> {
-    const resources = await this.getImageResources()
+    const [resources] = await this.getCharmResources()
     core.info(`required resources: ${resources}`)
     const upload: Map<string, string> = new Map()
     if (resources.length === 0) {
@@ -203,7 +258,7 @@ class Publish {
     const plan = await this.getPlan(runId)
     let dockerLogin = false
     for (const build of plan.build) {
-      if (build.type === 'charm') {
+      if (build.type === 'charm' || build.type === 'file') {
         continue
       }
       const resourceName = this.resourceMapping.hasOwnProperty(build.name)
@@ -346,7 +401,8 @@ class Publish {
   async run() {
     try {
       core.startGroup('retrieve image info')
-      const images = await this.getImages()
+      const imageResources = await this.getImages()
+      const fileResources = await this.getFiles()
       core.endGroup()
       core.startGroup('retrieve charm info')
       const {
@@ -355,15 +411,36 @@ class Publish {
         files: charms
       } = await this.getCharms()
       core.endGroup()
-      core.info(
-        `start uploading image resources: ${JSON.stringify(Object.fromEntries([...images]))}`
-      )
-      for (const resource of images.keys()) {
+      if (fileResources.size !== 0) {
+        core.info(
+          `start uploading file resources: ${JSON.stringify(Object.fromEntries([...fileResources]))}`
+        )
+      }
+      for (const [resource, filePath] of fileResources) {
+        core.info(`upload resource ${resource}`)
+        await exec.exec(
+          'charmcraft',
+          [
+            'upload-resource',
+            charmName,
+            resource,
+            `--filepath=${filePath}`,
+            '--verbosity=brief'
+          ],
+          { env: { CHARMCRAFT_AUTH: this.charmhubToken } }
+        )
+      }
+      if (imageResources.size !== 0) {
+        core.info(
+          `start uploading image resources: ${JSON.stringify(Object.fromEntries([...imageResources]))}`
+        )
+      }
+      for (const [resource, image] of imageResources) {
         core.info(`upload resource ${resource}`)
         const imageId = (
           await exec.getExecOutput('docker', [
             'images',
-            images.get(resource) as string,
+            image,
             '--format',
             '{{.ID}}'
           ])

tests/workflows/integration/test-upload-charm/build-resource.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+set -eu
+
+function build_resource() {
+    local RESOURCE=$1
+    local RESOURCE_OUTPUT=$2
+
+    case $RESOURCE in
+        test-file)
+            touch "$RESOURCE_OUTPUT"
+            ;;
+        *)
+            echo "Unsupported resource: $RESOURCE"
+            exit 1
+            ;;
+    esac
+}
+
+build_resource "$1" "$2"

tests/workflows/integration/test-upload-charm/metadata.yaml

@@ -20,3 +20,7 @@ resources:
   test-image:
     type: oci-image
     description: Test image
+  test-file:
+    type: file
+    description: Test file
+    filename: test-file.txt