Automate Keyring Unlock — No More Pass-Phrase Prompts

[mateeullahmalik]

Pull Request: Automate Keyring Unlock — No More Pass-Phrase Prompts

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✨ Summary

This PR makes supernode start-up fully non-interactive on Cosmos-SDK v0.50.13.
When a pass-phrase is supplied in config.yml (passphrase_plain | _env | _file) we:

• feed it to the SDK on an endless loop, and

• swap os.Stdin for a pipe so input.GetPassword treats the session as non-TTY.

Local developers who omit the pass-phrase still get the normal prompt.

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🗂️ Files Changed

Path	Description
pkg/keyring/keyring.go	• new repeatReader helper• new buildReaderAndPossiblySwapStdin that pipes the pass-phrase and replaces os.Stdin• imports bufio & standard libs only (no extra deps)

[Copilot]

Pull Request Overview

This PR implements automated keyring unlock functionality to eliminate interactive passphrase prompts during supernode startup. It adds support for three passphrase sources (plain text, environment variable, or file) in the configuration and modifies the keyring initialization to automatically feed the passphrase to the Cosmos SDK when provided.

• Adds passphrase configuration options (passphrase_plain, passphrase_env, passphrase_file) to KeyringConfig
• Implements automated stdin replacement with a pipe for non-interactive keyring operations
• Updates keyring initialization to use the new configuration structure instead of separate parameters

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
pkg/keyring/keyring.go	Core keyring automation logic with stdin pipe replacement and passphrase handling
supernode/config/config.go	Adds three new passphrase fields to KeyringConfig structure
supernode/config/save.go	Updates CreateDefaultConfig to accept passphrase parameters
supernode/cmd/init.go	Adds CLI flags and interactive prompts for passphrase configuration
supernode/cmd/helpers.go	Updates keyring initialization to use new config structure
supernode/cmd/start.go	Switches to config-based keyring initialization
supernode/cmd/supernode.go	Removes unused accountAddress field
tests/system/e2e_cascade_test.go	Updates test to use new keyring initialization API
README.md	Documents new passphrase configuration options and CLI flags