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refactor!: re-implement oras-mcp in golang (#6)
Signed-off-by: Shiwei Zhang <[email protected]>
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‎.github/workflows/build.yml‎

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# Copyright The ORAS Authors.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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name: build
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on:
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push:
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branches:
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- main
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- release-*
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pull_request:
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branches:
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- main
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- release-*
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jobs:
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build:
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runs-on: ubuntu-latest
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strategy:
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matrix:
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go-version: ['1.25']
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fail-fast: true
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steps:
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- name: Checkout
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uses: actions/checkout@v5
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- name: Setup Go ${{ matrix.go-version }}
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uses: actions/setup-go@v6
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with:
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go-version: ${{ matrix.go-version }}
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check-latest: true
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- name: Build CLI
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run: make build-linux-amd64
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- name: Run Unit Tests
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run: make test
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- name: Check Version
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run: bin/linux/amd64/oras-mcp version

‎.github/workflows/release-ghcr.yml‎

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packages: write
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steps:
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- name: Checkout
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uses: actions/checkout@v4
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uses: actions/checkout@v5
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- name: prepare
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id: prepare
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run: |

‎.gitignore‎

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# Logs
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logs
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*.log
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npm-debug.log*
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yarn-debug.log*
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yarn-error.log*
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lerna-debug.log*
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.pnpm-debug.log*
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# Diagnostic reports (https://nodejs.org/api/report.html)
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report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
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# Runtime data
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pids
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*.pid
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*.seed
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*.pid.lock
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# Directory for instrumented libs generated by jscoverage/JSCover
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lib-cov
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# Coverage directory used by tools like istanbul
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coverage
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*.lcov
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# nyc test coverage
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.nyc_output
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# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
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.grunt
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# Bower dependency directory (https://bower.io/)
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bower_components
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# node-waf configuration
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.lock-wscript
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# Compiled binary addons (https://nodejs.org/api/addons.html)
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build/Release
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# Dependency directories
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node_modules/
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jspm_packages/
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# Snowpack dependency directory (https://snowpack.dev/)
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web_modules/
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# TypeScript cache
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*.tsbuildinfo
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# Optional npm cache directory
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.npm
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# Optional eslint cache
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.eslintcache
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# Optional stylelint cache
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.stylelintcache
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# Microbundle cache
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.rpt2_cache/
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.rts2_cache_cjs/
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.rts2_cache_es/
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.rts2_cache_umd/
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# Optional REPL history
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.node_repl_history
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# Output of 'npm pack'
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*.tgz
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# Yarn Integrity file
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.yarn-integrity
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# dotenv environment variable files
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.env
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.env.development.local
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.env.test.local
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.env.production.local
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.env.local
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# parcel-bundler cache (https://parceljs.org/)
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.cache
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.parcel-cache
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# Next.js build output
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.next
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out
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# Nuxt.js build / generate output
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.nuxt
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dist
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# Gatsby files
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.cache/
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# Comment in the public line in if your project uses Gatsby and not Next.js
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# https://nextjs.org/blog/next-9-1#public-directory-support
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# public
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# vuepress build output
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.vuepress/dist
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# vuepress v2.x temp and cache directory
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.temp
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.cache
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# vitepress build output
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**/.vitepress/dist
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# vitepress cache directory
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**/.vitepress/cache
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# Docusaurus cache and generated files
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.docusaurus
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# Serverless directories
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.serverless/
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# FuseBox cache
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.fusebox/
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# DynamoDB Local files
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.dynamodb/
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# TernJS port file
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.tern-port
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# Stores VSCode versions used for testing VSCode extensions
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.vscode-test
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# yarn v2
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.yarn/cache
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.yarn/unplugged
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.yarn/build-state.yml
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.yarn/install-state.gz
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.pnp.*
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# Copyright The ORAS Authors.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Binaries for programs and plugins
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*.exe
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*.exe~
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*.dll
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*.so
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*.dylib
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# Test binary, build with `go test -c`
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*.test
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# Output of the go coverage tool, specifically when used with LiteIDE
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*.out
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coverage.html
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# VS Code
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debug
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# Jetbrains
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.idea
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# vi
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*.sw*
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# Custom
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coverage.txt
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**/covcounters.*
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**/covmeta.*
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bin/
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dist/
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*.tar.gz
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vendor/
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_dist/
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.DS_Store

‎.vscode/launch.json‎

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‎.vscode/mcp.json‎

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// Copyright The ORAS Authors.
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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{
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"servers": {
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"oras-mcp-server-stdio": {
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"type": "stdio",
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"command": "node",
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"args": ["${workspaceFolder}/dist/index.js"]
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"command": "go",
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"args": ["run", "${workspaceFolder}/cmd/oras-mcp", "serve"]
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}
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// "oras-mcp-server-streamable-http": {
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// "type": "http",
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// "url": "http://localhost:3088/mcp"
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// },
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}
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}

‎.vscode/tasks.json‎

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‎Dockerfile‎

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FROM --platform=$BUILDPLATFORM docker.io/library/node:22-alpine AS builder
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ADD . /app
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WORKDIR /app
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RUN npm install --ignore-scripts
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RUN npm run build
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# Copyright The ORAS Authors.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# remove unnecessary files in order to reduce the number of layers
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FROM --platform=$BUILDPLATFORM docker.io/library/node:22-alpine AS packer
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COPY --from=builder /app/dist /app/dist
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COPY --from=builder /app/package*.json /app/
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FROM --platform=$BUILDPLATFORM docker.io/library/golang:1.25.1-alpine AS builder
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ARG TARGETPLATFORM
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RUN apk add git make
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ENV CLI_PKG=/oras-mcp
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ADD . ${CLI_PKG}
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WORKDIR ${CLI_PKG}
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RUN make "build-$(echo $TARGETPLATFORM | tr / -)"
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RUN mv ${CLI_PKG}/bin/${TARGETPLATFORM}/oras-mcp /go/bin/oras-mcp
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FROM --platform=$BUILDPLATFORM ghcr.io/oras-project/oras:v1.3.0-beta.2 AS oras
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FROM --platform=$BUILDPLATFORM ghcr.io/oras-project/oras:v1.3.0 AS oras
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FROM --platform=$BUILDPLATFORM docker.io/library/node:22-alpine
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FROM docker.io/library/alpine:3.22.1
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RUN apk --update add ca-certificates
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COPY --from=oras /bin/oras /bin/oras
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COPY --from=packer /app /oras-mcp-server
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WORKDIR /oras-mcp-server
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RUN npm install --production --ignore-scripts
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ENTRYPOINT ["node", "dist/index.js"]
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COPY --from=builder /go/bin/oras-mcp /bin/oras-mcp
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RUN mkdir /workspace
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WORKDIR /workspace
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ENTRYPOINT ["/bin/oras-mcp"]

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