Reorganize files; document some methods

src/utils/log.jl

@@ -0,0 +1,64 @@
+# UnitCommitment.jl: Optimization Package for Security-Constrained Unit Commitment
+# Copyright (C) 2020, UChicago Argonne, LLC. All rights reserved.
+# Released under the modified BSD license. See COPYING.md for more details.
+
+import Logging: min_enabled_level, shouldlog, handle_message
+using Base.CoreLogging, Logging, Printf
+
+struct TimeLogger <: AbstractLogger
+    initial_time::Float64
+    file::Union{Nothing,IOStream}
+    screen_log_level::Any
+    io_log_level::Any
+end
+
+function TimeLogger(;
+    initial_time::Float64,
+    file::Union{Nothing,IOStream} = nothing,
+    screen_log_level = CoreLogging.Info,
+    io_log_level = CoreLogging.Info,
+)::TimeLogger
+    return TimeLogger(initial_time, file, screen_log_level, io_log_level)
+end
+
+min_enabled_level(logger::TimeLogger) = logger.io_log_level
+shouldlog(logger::TimeLogger, level, _module, group, id) = true
+
+function handle_message(
+    logger::TimeLogger,
+    level,
+    message,
+    _module,
+    group,
+    id,
+    filepath,
+    line;
+    kwargs...,
+)
+    elapsed_time = time() - logger.initial_time
+    time_string = @sprintf("[%12.3f] ", elapsed_time)
+
+    if level >= Logging.Error
+        color = :light_red
+    elseif level >= Logging.Warn
+        color = :light_yellow
+    else
+        color = :light_green
+    end
+
+    if level >= logger.screen_log_level
+        printstyled(time_string, color = color)
+        println(message)
+    end
+    if logger.file !== nothing && level >= logger.io_log_level
+        write(logger.file, time_string)
+        write(logger.file, message)
+        write(logger.file, "\n")
+        flush(logger.file)
+    end
+end
+
+function _setup_logger()
+    initial_time = time()
+    return global_logger(TimeLogger(initial_time = initial_time))
+end

src/utils/sysimage.jl

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+# UnitCommitment.jl: Optimization Package for Security-Constrained Unit Commitment
+# Copyright (C) 2020, UChicago Argonne, LLC. All rights reserved.
+# Released under the modified BSD license. See COPYING.md for more details.
+
+using PackageCompiler
+
+using DataStructures
+using JSON
+using JuMP
+using MathOptInterface
+using SparseArrays
+
+pkg = [:DataStructures, :JSON, :JuMP, :MathOptInterface, :SparseArrays]
+
+@info "Building system image..."
+create_sysimage(
+    pkg,
+    precompile_statements_file = "build/precompile.jl",
+    sysimage_path = "build/sysimage.so",
+)