Flesh out interface

README.md

@@ -25,11 +25,62 @@ Usage
 
 kgrader uses rake as its command-line interface.
 
-To do some basic housekeeping:
+### Setup
+
+To load a roster for a course semester:
+
+    rake roster cs123 sp2016 myroster.csv
+
+### Grading
+
+To grade a particular assignment (e.g., "mp1" for the "cs123" course):
+
+    rake grade cs123 mp1
+
+After verifying that everything looks good, push the grade reports with:
+
+    rake commit cs123 mp1
+
+### Housekeeping
+
+To show all known classes, semesters, and assignments:
+
+    rake list
+
+To do some basic cleanup (i.e., trash uncommitted grading attempts, or reset
+messy internal state after a bad run):
 
     rake clean
 
-To restore kgrader to its factory defaults (i.e., delete checked-out student
-repos and any uncommitted grading attempts):
+To restore kgrader to its "factory defaults" (i.e., everything `clean` does,
+but also delete checked-out student repos and roster files -- dangerous!):
 
     rake clobber
+
+### Advanced
+
+`grade` has an extended syntax for different options.
+
+To specify the semester, instead of the inferred current one:
+
+    rake grade cs123 mp1 semester=sp2016
+
+To set a cutoff date after which commits will be ignored:
+
+    rake grade cs123 mp1 due="March 20, 2016 11:59:59 PM CDT"
+
+To grade without fetching new student repo changes:
+
+    rake grade cs123 mp1 fetch=no
+
+To grade specific students only:
+
+    rake grade cs123 mp1 students=ksmith12
+    rake grade cs123 mp1 students=ksmith12,bcooper3,mjones14
+
+Normally, kgrader will only regrade a particular student's assignment if their
+repo has changed since the last run. To forcibly regrade:
+
+    rake grade cs123 mp1 regrade=yes
+
+You can combine these arguments in any meaningful way.

rakefile

@@ -1,12 +1,50 @@
 require_relative 'lib/kgrader'
 
+def get_cli
+  KGrader::CLI.new Rake.application.original_dir
+end
+
 task :clean do
-  cli = KGrader::CLI.new Rake.application.original_dir
+  cli = get_cli
+  # TODO: also purge uncommitted grades
   cli.reset_jail
 end
 
 task :clobber do
-  cli = KGrader::CLI.new Rake.application.original_dir
+  cli = get_cli
+  # TODO: confirm
   cli.reset_jail
   cli.reset_desk
 end
+
+task :list do
+  # TODO
+  puts '[list!]'
+end
+
+task :roster do
+  # TODO: [course, assignment, rosterfile]
+  puts '[installing roster!]'
+end
+
+task :grade do
+  puts ARGV.inspect
+  course = ARGV[1]
+  assignment = ARGV[2]
+
+  task course.to_sym {}
+  task assignment.to_sym {}
+
+  # TODO
+  puts "Grading #{assignment} for #{course}..."
+  puts "  - semester:"
+  puts "  - due:"
+  puts "  - fetch:"
+  puts "  - students:"
+  puts "  - regrade:"
+end
+
+task :commit do
+  # TODO: [course, assignment], semester=, students=
+  puts '[committing!]'
+end

spec/cs241h

@@ -1 +1 @@
-Subproject commit 7da2784b2255082339483744aa388cab2e016126
+Subproject commit a0a432cb96f38c230355e3e5b12bbf131beb04bd