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Add bot command to update LavaMoat policies (#19675)
A bot command has been added that can update LavaMoat policies automatically. This helps contributors without a Linux machine to produce policy files that match exactly what CI expects. The README has been updated with instructions for this new workflow.
This commit is contained in:
Mark Stacey
GitHub
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172
.github/workflows/update-lavamoat-policies.yml
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172
.github/workflows/update-lavamoat-policies.yml
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name: Update LavaMoat policies
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on:
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issue_comment:
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types: created
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jobs:
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is-fork-pull-request:
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name: Determine whether this issue comment was on a pull request from a fork
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if: ${{ github.event.issue.pull_request && startsWith(github.event.comment.body, '@metamaskbot update-policies') }}
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runs-on: ubuntu-latest
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outputs:
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IS_FORK: ${{ steps.is-fork.outputs.IS_FORK }}
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steps:
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- uses: actions/checkout@v3
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- name: Determine whether this PR is from a fork
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id: is-fork
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run: echo "IS_FORK=$(gh pr view --json isCrossRepository --jq '.isCrossRepository' "${PR_NUMBER}" )" >> "$GITHUB_OUTPUT"
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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PR_NUMBER: ${{ github.event.issue.number }}
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prepare:
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name: Prepare dependencies
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runs-on: ubuntu-latest
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needs: is-fork-pull-request
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# Early exit if this is a fork, since later steps are skipped for forks
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if: ${{ needs.is-fork-pull-request.outputs.IS_FORK == 'false' }}
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steps:
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- uses: actions/checkout@v3
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- name: Use Node.js
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uses: actions/setup-node@v3
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with:
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node-version-file: '.nvmrc'
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cache: 'yarn'
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- name: Install Yarn dependencies
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run: yarn --immutable
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update-lavamoat-build-policy:
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name: Update LavaMoat build policy
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runs-on: ubuntu-latest
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needs:
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- prepare
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steps:
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- name: Checkout repository
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uses: actions/checkout@v3
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- name: Setup Node.js
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uses: actions/setup-node@v3
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with:
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node-version-file: '.nvmrc'
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cache: 'yarn'
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- name: Install dependencies from cache
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run: yarn --immutable --immutable-cache
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- name: Update LavaMoat build policy
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run: yarn lavamoat:build:auto
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- name: Cache build policy
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uses: actions/cache/save@v3
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with:
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path: lavamoat/build-system
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key: cache-build-${{ github.run_id }}-${{ github.run_attempt }}
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update-lavamoat-webapp-policy:
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strategy:
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matrix:
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# Ensure this is synchronized with the list below in the "commit-updated-policies" job
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# and with the build type list in `builds.yml`
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build-type: [main, beta, flask, mmi, desktop]
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name: Update LavaMoat ${{ matrix.build-type }} application policy
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runs-on: ubuntu-latest
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needs:
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- prepare
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steps:
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- name: Checkout repository
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uses: actions/checkout@v3
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- name: Setup Node.js
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uses: actions/setup-node@v3
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with:
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node-version-file: '.nvmrc'
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cache: 'yarn'
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- name: Install dependencies from cache
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run: yarn --immutable --immutable-cache
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- name: Update LavaMoat ${{ matrix.build-type }} policy
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run: yarn lavamoat:webapp:auto:ci '--build-types=${{ matrix.build-type }}'
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env:
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INFURA_PROJECT_ID: 00000000000
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- name: Cache ${{ matrix.build-type }} application policy
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uses: actions/cache/save@v3
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with:
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path: lavamoat/browserify/${{ matrix.build-type }}
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key: cache-${{ matrix.build-type }}-${{ github.run_id }}-${{ github.run_attempt }}
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commit-updated-policies:
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name: Commit the updated LavaMoat policies
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runs-on: ubuntu-latest
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needs:
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- is-fork-pull-request
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- update-lavamoat-build-policy
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- update-lavamoat-webapp-policy
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# Ensure forks don't get access to the LavaMoat update token
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if: ${{ needs.is-fork-pull-request.outputs.IS_FORK == 'false' }}
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steps:
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- uses: actions/checkout@v3
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with:
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# Use PAT to ensure that the commit later can trigger status check workflows
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token: ${{ secrets.LAVAMOAT_UPDATE_TOKEN }}
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- name: Checkout pull request
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run: gh pr checkout "${PR_NUMBER}"
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env:
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GITHUB_TOKEN: ${{ secrets.LAVAMOAT_UPDATE_TOKEN }}
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PR_NUMBER: ${{ github.event.issue.number }}
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- name: Restore build policy
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uses: actions/cache/restore@v3
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with:
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path: lavamoat/build-system
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key: cache-build-${{ github.run_id }}-${{ github.run_attempt }}
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# One restore step per build type: [main, beta, flask, mmi, desktop]
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# Ensure this is synchronized with the list above in the "update-lavamoat-webapp-policy" job
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# and with the build type list in `builds.yml`
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- name: Restore main application policy
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uses: actions/cache/restore@v3
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with:
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path: lavamoat/browserify/main
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key: cache-main-${{ github.run_id }}-${{ github.run_attempt }}
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- name: Restore beta application policy
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uses: actions/cache/restore@v3
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with:
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path: lavamoat/browserify/beta
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key: cache-beta-${{ github.run_id }}-${{ github.run_attempt }}
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- name: Restore flask application policy
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uses: actions/cache/restore@v3
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with:
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path: lavamoat/browserify/flask
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key: cache-flask-${{ github.run_id }}-${{ github.run_attempt }}
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- name: Restore mmi application policy
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uses: actions/cache/restore@v3
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with:
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path: lavamoat/browserify/mmi
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key: cache-mmi-${{ github.run_id }}-${{ github.run_attempt }}
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- name: Restore desktop application policy
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uses: actions/cache/restore@v3
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with:
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path: lavamoat/browserify/desktop
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key: cache-desktop-${{ github.run_id }}-${{ github.run_attempt }}
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- name: Check whether there are policy changes
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id: policy-changes
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run: |
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if git diff --exit-code
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then
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echo "HAS_CHANGES=false" >> "$GITHUB_OUTPUT"
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else
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echo "HAS_CHANGES=true" >> "$GITHUB_OUTPUT"
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fi
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- name: Commit the updated policies
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if: steps.policy-changes.outputs.HAS_CHANGES == 'true'
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run: |
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git config --global user.name 'MetaMask Bot'
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git config --global user.email 'metamaskbot@users.noreply.github.com'
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git commit -am "Update LavaMoat policies"
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git push
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- name: Post comment
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run: |
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if [[ $HAS_CHANGES == 'true' ]]
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then
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gh pr comment "${PR_NUMBER}" --body 'Policies updated'
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else
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gh pr comment "${PR_NUMBER}" --body 'No policy changes'
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fi
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env:
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HAS_CHANGES: ${{ steps.policy-changes.outputs.HAS_CHANGES }}
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GITHUB_TOKEN: ${{ secrets.LAVAMOAT_UPDATE_TOKEN }}
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PR_NUMBER: ${{ github.event.issue.number }}
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29
README.md
29
README.md
@ -112,19 +112,22 @@ Whenever you change dependencies (adding, removing, or updating, either in `pack
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- The `allow-scripts` configuration in `package.json`
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- Run `yarn allow-scripts auto` to update the `allow-scripts` configuration automatically. This config determines whether the package's install/postinstall scripts are allowed to run. Review each new package to determine whether the install script needs to run or not, testing if necessary.
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- Unfortunately, `yarn allow-scripts auto` will behave inconsistently on different platforms. macOS and Windows users may see extraneous changes relating to optional dependencies.
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- The LavaMoat policy files. The _tl;dr_ is to run `yarn lavamoat:auto` to update these files, but there can be devils in the details:
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- There are two sets of LavaMoat policy files:
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- The production LavaMoat policy files (`lavamoat/browserify/*/policy.json`), which are re-generated using `yarn lavamoat:background:auto`. Add `--help` for usage.
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- These should be regenerated whenever the production dependencies for the background change.
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- The build system LavaMoat policy file (`lavamoat/build-system/policy.json`), which is re-generated using `yarn lavamoat:build:auto`.
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- This should be regenerated whenever the dependencies used by the build system itself change.
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- Whenever you regenerate a policy file, review the changes to determine whether the access granted to each package seems appropriate.
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- Unfortunately, `yarn lavamoat:auto` will behave inconsistently on different platforms.
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macOS and Windows users may see extraneous changes relating to optional dependencies.
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- If you keep getting policy failures even after regenerating the policy files, try regenerating the policies after a clean install by doing:
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- `rm -rf node_modules/ && yarn && yarn lavamoat:auto`
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- Keep in mind that any kind of dynamic import or dynamic use of globals may elude LavaMoat's static analysis.
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Refer to the LavaMoat documentation or ask for help if you run into any issues.
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- The LavaMoat policy files
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- If you are a MetaMask team member and your PR is on a repository branch, you can use the bot command `@metamaskbot update-policies` to ask the MetaMask bot to automatically update the policies for you.
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- If your PR is from a fork, you can ask a MetaMask team member to help with updating the policy files.
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- Manual update instructions: The _tl;dr_ is to run `yarn lavamoat:auto` to update these files, but there can be devils in the details:
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- There are two sets of LavaMoat policy files:
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- The production LavaMoat policy files (`lavamoat/browserify/*/policy.json`), which are re-generated using `yarn lavamoat:background:auto`. Add `--help` for usage.
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- These should be regenerated whenever the production dependencies for the background change.
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- The build system LavaMoat policy file (`lavamoat/build-system/policy.json`), which is re-generated using `yarn lavamoat:build:auto`.
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- This should be regenerated whenever the dependencies used by the build system itself change.
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- Whenever you regenerate a policy file, review the changes to determine whether the access granted to each package seems appropriate.
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- Unfortunately, `yarn lavamoat:auto` will behave inconsistently on different platforms.
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macOS and Windows users may see extraneous changes relating to optional dependencies.
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- If you keep getting policy failures even after regenerating the policy files, try regenerating the policies after a clean install by doing:
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- `rm -rf node_modules/ && yarn && yarn lavamoat:auto`
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- Keep in mind that any kind of dynamic import or dynamic use of globals may elude LavaMoat's static analysis.
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Refer to the LavaMoat documentation or ask for help if you run into any issues.
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## Architecture
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@ -11,6 +11,7 @@ default: &default main
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# Declaration of build types
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# Each build type is composed of features, env variables and assets.
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# Also known as productFlavors in Android lingo
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# Note: These build types should be kept in sync with the list in `.github/workflows/update-lavamoat-policies.yml`
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buildTypes:
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main:
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features:
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