datasusr 0.1.0

CRAN review fixes

• DESCRIPTION now consistently single-quotes external software/API names (‘DATASUS’, ‘DBC’, ‘DBF’, ‘FTP’, ‘C’, ‘PKWare DCL’, ‘blast’, ‘zlib’) and unquotes the in-package function reference datasus_fetch(). The description field also now references the upstream sources (DATASUS file transfer site and Adler 2003 for the bundled blast decompressor).
• All examples switched from \dontrun{} to \donttest{}. Network- dependent examples are wrapped in tryCatch() and write to tempdir() so that running them never touches the user’s home filespace.
• The default cache directory is now a session-scoped subdirectory of tempdir() instead of tools::R_user_dir("datasusr", "cache"). To opt in to a persistent cache across sessions, set the DATASUSR_CACHE_DIR environment variable, the datasusr.cache_dir R option, or pass cache_dir explicitly.

Breaking changes

• Package version bumped to 0.1.0 to reflect the expanded scope beyond just reading DBC files.

New features

• datasus_fetch(): high-level convenience function that lists, downloads, and reads DATASUS files in a single call. Supports column selection, type specification, and row-binding of multiple files.
• DATASUSR_CACHE_DIR environment variable: the cache directory now respects the DATASUSR_CACHE_DIR env var in addition to the existing datasusr.cache_dir option.
• format_bytes() is now exported for general use.

Bug fixes

• Fixed SIM path templates: DOEXT, DOINF, and DOMAT previously pointed to the DOFET FTP directory. Each now has its own correct path.
• Fixed column/argument name shadowing in datasus_build_path(), datasus_file_types(), and datasus_list_files(). Column names like source and file_type no longer clash with function arguments thanks to proper use of .env$ pronouns.
• Download failures no longer abort the loop: individual FTP download errors are caught and reported without stopping the remaining downloads.
• Empty file lists now return immediately from datasus_download() instead of proceeding with zero iterations.

Improvements

• Removed all .data$ pronoun usage inside dplyr verbs. Columns are now referenced with bare (tidy evaluation) names, and external variables use .env$ where needed. This follows current tidyverse best practice.
• Replaced deprecated purrr functions: pmap_dfr() replaced with map2() |> list_rbind().
• Replaced purrr::map_lgl() in cache functions with base vapply() for fewer dependencies in hot paths.
• Improved CLI messages throughout: all user-facing messages now use cli::cli_abort() with structured hints (i bullets) instead of bare stop(). Progress messages are more concise and informative.
• Wrapped FTP connection errors with a user-friendly message suggesting a connectivity check.
• rlang is now an explicit dependency (was already an indirect dep via dplyr), making the %||% import explicit.
• Added rlang (>= 1.0.0) and dplyr (>= 1.1.0) minimum version constraints.
• Vignettes expanded with richer explanations and a new comparison article.
• pkgdown site structure updated with a comparison article.
• Compiled .o and .so files excluded from the source bundle via .Rbuildignore.

datasusr 0.0.7.3

• Fixed dplyr data-masking bugs in catalog and file listing helpers.
• Removed .data$ usage inside mutate pipelines and simplified tidyverse expressions.
• Improved verbose output in read_datasus_dbc() so row and column counts print on separate lines.

datasusr 0.0.7.1

• Fixed datasus_file_types(source = ...) filtering consistency.
• Improved cli spacing and summary formatting in key functions.
• Filtered invalid source/file type combinations earlier in datasus_list_files().

datasusr 0.0.7

• Standardized user-facing progress and status messages with cli.
• Added progress bars and cache-hit messages to datasus_download().
• Added optional verbose control to FTP, listing, and cache helpers.
• Improved cache summaries with human-readable sizes.

datasusr 0.0.6

• Added a configurable cache layer for DATASUS downloads.
• Added datasus_cache_dir(), datasus_cache_list(), datasus_cache_info(), datasus_cache_clear(), and datasus_cache_prune().
• Integrated cache-aware downloads into datasus_download().

datasusr 0.0.5

• Added DATASUS catalog helpers: datasus_sources(), datasus_modalities(), datasus_file_types(), and datasus_ufs().
• Added FTP helpers: datasus_ftp_ls(), datasus_build_path(), datasus_list_files(), and datasus_download().

datasusr 0.0.4

• Added guess_types, col_types, and parse_dates to read_datasus_dbc().
• Improved DBC handling for files with DBF headers plus compressed record areas.

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