Fix for HclCache in PartialParseConfigFile is never used

[jkarkoszka]

Description

Fixes #4522.

This PR resolves the issue described in the referenced issue: the HclCache was never used in PartialParseConfigFile.

TODOs

Read the Gruntwork contribution guidelines.

• I authored this code entirely myself
• I am submitting code based on open source software (e.g. MIT, MPL-2.0, Apache)]
• I am adding or upgrading a dependency or adapted code and confirm it has a compatible open source license
• Update the docs.
• Run the relevant tests successfully, including pre-commit checks.
• Include release notes. If this PR is backward incompatible, include a migration guide.

Release Notes (draft)

Fix: improving caching behavior during hcl files parsing.

Summary by CodeRabbit

• New Features

  • Improved configuration file parsing performance by introducing caching for parsed files.

• Tests

  • Added a new test to verify that parsed configuration files are correctly stored in the cache.

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[coderabbitai]

📝 Walkthrough

"""

Walkthrough

The PartialParseConfigFile function in config_partial.go is updated to store parsed HCL files into the cache after parsing. A corresponding test is added in config_partial_test.go to verify that the parsed file is correctly cached after parsing.

Changes

File(s)	Change Summary
config/config_partial.go	Adds a call to hclCache.Put to store parsed HCL files in the cache after parsing from disk.
config/config_partial_test.go	Adds a new test TestPartialParseSavesToHclCache to verify that parsed files are cached.

Sequence Diagram(s)

sequenceDiagram
    participant Caller
    participant PartialParseConfigFile
    participant HclCache
    participant HclParser

    Caller->>PartialParseConfigFile: Call with configPath
    PartialParseConfigFile->>HclCache: Get(cacheKey)
    alt Cache hit
        HclCache-->>PartialParseConfigFile: Return cached file
    else Cache miss
        PartialParseConfigFile->>HclParser: ParseFromFile(configPath)
        HclParser-->>PartialParseConfigFile: Return parsed file
        PartialParseConfigFile->>HclCache: Put(cacheKey, parsed file)
    end
    PartialParseConfigFile-->>Caller: Return TerragruntConfig

Loading

Assessment against linked issues

Objective	Addressed	Explanation
Ensure PartialParseConfigFile stores parsed HCL files in the cache after parsing (#4522)	✅
Add a test verifying that parsed files are saved to the cache (#4522)	✅

Suggested reviewers

• denis256
  """

---

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📥 Commits

Reviewing files that changed from the base of the PR and between 1e8fc7a and 1a369a2.

📒 Files selected for processing (1)

• config/config_partial.go (1 hunks)

✅ Files skipped from review due to trivial changes (1)

• config/config_partial.go

✨ Finishing Touches

• 📝 Generate Docstrings

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[denis256]

Hi, noticed failing lint tests:

config/config_partial.go:305:3: expressions should not be cuddled with blocks (wsl)
		hclCache.Put(ctx, cacheKey, file)
		^
1 issues: