fix(aqua): skip whitespace before pipe token in template parser

[jdx]

Summary

• Fixed a bug in the aqua template parser where whitespace between variables and pipe operators was not being skipped
• This caused templates like {{.AssetWithoutExt | trimSuffix "-bin"}} to be incorrectly parsed, resulting in the pipe expression being ignored
• Added unit tests for the gradle package template to prevent regression
• Added e2e test for gradle to verify the fix works end-to-end

Problem

Tools that use aqua registry templates with piped functions (like gradle) were being installed but their binaries were inaccessible. For example, gradle was being installed to gradle-8.14.3/bin/gradle but mise was looking for gradle-8.14.3-bin/bin/gradle because the trimSuffix "-bin" wasn't being applied.

Root Cause

The parse_pipe function in the template parser didn't skip whitespace before checking for the pipe token. After parsing the primary expression (like .AssetWithoutExt), there would be whitespace in the token stream, but the parser would immediately check matches!(tokens.peek(), Some(Token::Pipe)) which would fail because the next token was Token::Whitespace, not Token::Pipe.

Fix

Added skip_whitespace(tokens) calls before checking for pipe tokens in the parse_pipe function.

Test plan

• Unit test for the gradle src template pattern passes
• All existing template tests pass (39 tests)
• Manual testing with gradle installation works correctly
• Added e2e test for gradle to verify the fix

Fixes #7068

🤖 Generated with Claude Code

---

Note

Handle whitespace around pipe tokens in the template parser and add Gradle-focused unit/e2e tests to verify pipe expressions.

• Template Parsing:
  • Update parse_pipe in crates/aqua-registry/src/template.rs to skip_whitespace before/after checking for |, enabling expressions like {{.AssetWithoutExt | trimSuffix "-bin"}}.
• Tests:
  • Add unit test test_gradle_src_template in template.rs for whitespace-preceded pipe usage.
  • Add unit test in crates/aqua-registry/src/types.rs validating Gradle src template resolution.
  • Add e2e test in e2e/backend/test_aqua to assert Gradle binary path resolution using mise which.

^{Written by Cursor Bugbot for commit d0afc2a. This will update automatically on new commits. Configure here.}

[Copilot]

Pull request overview

This PR fixes a bug in the aqua template parser where whitespace before pipe operators caused template expressions to be parsed incorrectly, preventing tools like gradle from being installed to the correct location.

• Added skip_whitespace() calls in the template parser's parse_pipe function to properly handle whitespace before pipe tokens
• Added unit tests to verify the gradle template pattern works correctly
• Added an e2e test to verify the fix works end-to-end

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated no comments.

File	Description
e2e/backend/test_aqua	Added e2e test for gradle to verify pipe expression parsing with whitespace
crates/aqua-registry/src/types.rs	Added unit test for gradle package src template rendering
crates/aqua-registry/src/template.rs	Fixed parser to skip whitespace before checking for pipe tokens and added unit test

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[github-actions]

Hyperfine Performance

mise x -- echo

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
mise-2025.11.8 x -- echo	18.5 ± 0.5	17.9	24.7	1.00
mise x -- echo	18.7 ± 0.4	18.1	20.1	1.01 ± 0.03

mise env

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
mise-2025.11.8 env	18.0 ± 0.3	17.5	19.0	1.00
mise env	18.4 ± 2.2	17.7	64.6	1.03 ± 0.12

mise hook-env

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
mise-2025.11.8 hook-env	18.1 ± 0.3	17.6	19.8	1.00
mise hook-env	18.4 ± 0.4	17.7	21.4	1.01 ± 0.03

mise ls

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
mise-2025.11.8 ls	15.7 ± 0.3	15.1	17.1	1.00
mise ls	15.9 ± 0.3	15.3	17.2	1.01 ± 0.03

xtasks/test/perf

Command	mise-2025.11.8	mise	Variance
install (cached)	107ms	108ms	+0%
ls (cached)	64ms	66ms	-3%
bin-paths (cached)	71ms	71ms	+0%
task-ls (cached)	423ms	434ms	-2%