feat(cli): add fern replay commands to CLI v2#15081
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iamnamananand996 merged 7 commits intomainfrom Apr 17, 2026
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Adds comprehensive unit tests for replay forget, init, resolve, and status commands (mocks generator-cli and core helpers). Implements validation in ForgetCommand to reject multiple positional non-patch arguments (throws CliError for ambiguous input). Enhances InitCommand by importing and using replaceEnvVariables to resolve self-hosted git env vars, validating the Fern response contains a prUrl (isPrUrlResponse helper), and improving error handling for unexpected responses. These changes tighten input validation and make init behavior more robust while the new tests cover key scenarios (dry-run, missing data, network errors, and confirmation flows).
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Swimburger
approved these changes
Apr 17, 2026
tstanmay13
approved these changes
Apr 17, 2026
Move the Fiddle API submission logic and parseOwnerRepo into a shared submitReplayInit function in @fern-api/generator-cli so both CLI v1 and CLI v2 can reuse the same library code.
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iamnamananand996
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Description
Linear ticket: Closes FER-8791
Ports the existing
fern replaycommands from CLI v1 into CLI v2, following the class-based command architecture.Changes Made
fern replay init— Initialize Replay for an SDK repository (clones repo, bootstraps lockfile, creates PR via Fiddle)fern replay resolve— Apply and resolve Replay patches with conflict marker checkingfern replay status— Show Replay status and tracked customizationsfern replay forget— Remove tracked patches by ID, pattern, or--allwith interactive confirmationreplaycommand group wired into the CLI v2 entry point@fern-api/generator-clias a workspace dependency for cli-v2submitReplayInitandparseOwnerRepointo@fern-api/generator-clias a shared reusable library (per review feedback)The commands are fully visible in
--help(unlike CLI v1 where they were hidden withdescribe: false).Testing
pnpm turbo run compile --filter @fern-api/cli-v2)pnpm check:fix)Link to Devin session: https://app.devin.ai/sessions/ea5aef13f37e4a2285d97c46406ec9c7
Requested by: @iamnamananand996