[cruiseliner]

v0.7.0: calendars, holidays, float and schedule risk

Holiday calendars (--holidays, --years, --holiday-file)

• Built-in rule tables (no data files, no new dependencies). US federal: all 11 holidays, with the observed-date rule (Sat→Fri, Sun→Mon, so New Year's Day 2028 is observed Fri 2027-12-31). Juneteenth applies from 2021. Also CA, GB (England & Wales, with substitute days), AU, DE, FR, IN (fixed-date only) and MX. Countries can be combined (US,CA).
• --holiday-file: CSV lines date[..date],name[,hours] for shutdowns (non-working days) or working exceptions such as overtime Saturdays and make-up days.
• New holidays --country US --years 2026-2028 [--csv|--json] lists them (--country list shows the supported countries).

Work weeks and overtime

• --work-days mon-sat|all|…, --hours 06:00-11:00,11:30-16:30 (shift hours), and repeatable --day sat=07:00-12:00 / mon-thu=06:00-16:30 / fri=off. --hours-per-day sets the length of a duration day.
• Everything is written to the MSPDI calendar: WeekDays, plus an Exception for every holiday or custom day in the plan's years.

from-csv

• Scheduling now runs on a working-minute axis, and dates move around all non-working time.
• Writes TotalSlack and FreeSlack (in tenths of a minute), so the DCMA float checks (6, 7, 13) now run on CSV plans.
• With no calendar options the output is byte-identical to v0.6.1, apart from the new slack elements (checked by diffing plan.csv and team.csv against main).

cpm and risk on any schedule

• They run on .mpp, .mpx, MSPDI, XER, P6 XML, CSV plans, and a JSON task list (tasks --json output).
• Imported files are rescheduled on their project calendar, using remaining durations and progress anchoring.
• risk: PERT-beta Monte Carlo (built-in, reproducible RNG) giving P10/P50/P80/P90, P(meet deterministic finish), the mean, and a per-task criticality index. This ports ppa/tools/montecarlo.py and adds calendar awareness.

Docs

• README section on calendars and risk, plus updated limitations.
• States plainly that the XML output is not yet verified in real Microsoft Project: read it back with mpptool tasks before importing. There is no XER writer: import the MSP XML into P6 and verify it on your P6 version.
• CHANGELOG updated and version bumped to 0.7.0.

Tests

• cargo fmt --check, cargo clippy --all-targets -D warnings and cargo test all pass: 33 unit, 14 cli, 8 p6, 14 reports and 1 doc test.
• Corpus: 606 MPP converted, read_failures=3 (password-protected), xml_not_wellformed=0, roundtrip_mismatch=0. P6: 12/12, 0 mismatches. Features: 761 files, 0 failures.
• risk over 635 corpus files: 475 OK, 0 panics. The 160 errors are expected: 156 have no tasks, 3 are password-protected and 1 needs the de locale.

Known gaps

• No task or resource calendars in cpm/risk.
• Only SNET/MSO constraints are honored, and there is no leveling, so dates can differ from Project/P6.
• No separate overtime work or cost fields.
• Regional and one-off holidays aren't built in (use --holiday-file).
• compare/variance slip still counts Mon–Fri days.
• Monte Carlo has no correlation and no discrete risk events.