nvidia-holoscan / holoscan-cli / 38365639585

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feat: configure Module metadata search paths in pyproject.toml (#263)

* feat: add extra metadata search folders for Modules

Standalone Modules can list more folders to search for projects in
[tool.holoscan], for example extra-search-paths = ["examples"]. The
folders are added to the default folders; HOLOSCAN_CLI_SEARCH_PATH still
replaces the whole list.

Discovery now skips hidden folders such as .git and .venv, Python virtual
environments, and CMake build trees, and lists each metadata.json once
when search folders overlap. Before this, searching "." also listed the
placeholder projects of the CLI's Module template installed in .venv.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Wenqi Li <wenqil@nvidia.com>

* feat: replace extra-search-paths with search-paths

tool.holoscan.search-paths now mirrors HOLOSCAN_CLI_SEARCH_PATH: it lists the
folders to search and replaces the conventional directories, so leaving a
folder out excludes it. The environment variable still wins. A Module's root
metadata.json is always searched, so a custom list cannot hide the Module.

Signed-off-by: Wenqi Li <wenqil@nvidia.com>
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* fix: resolve symlinks in metadata search paths

List a metadata.json reached through a symlinked search folder once, and reject
a tool.holoscan.search-paths entry whose symlink leads outside the Module.

Signed-off-by: Wenqi Li <wenqil@nvidia.com>
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* test: check discovery through a symlinked search folder

Signed-off-by: Wenqi Li <wenqil@nvidia.com>
Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* fix: search in-source builds and skip Conda environments

Discovery no longer skips a marked folder that has its own metadata.json, so an
app with an in-source CMake build stays listed. conda-meta now marks a sk... (continued)

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