Use ProgressLogging

Project.toml

@@ -14,6 +14,7 @@ OrdinaryDiffEq = "1dea7af3-3e70-54e6-95c3-0bf5283fa5ed"
 Parameters = "d96e819e-fc66-5662-9728-84c9c7592b0a"
 Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
 Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
+ProgressLogging = "33c8b6b6-d38a-422a-b730-caa89a2f386c"
 QuadGK = "1fd47b50-473d-5c70-9696-f719f8f3bcdc"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 RecipesBase = "3cdcf5f2-1ef4-517c-9805-6587b60abb01"

src/continuations/continuations.jl

@@ -5,6 +5,7 @@ import DiffEqBase: solve, solve!, init, step!
 
 using ..ArrayUtils: _similar, _zeros, isalmostzero, zero_if_nan, _lq!, _det,
     _normalize!, bottomrow, popbottomright
+using ..MiscUtils: @progress_if
 
 include("interface.jl")
 include("euler_newton.jl")

src/continuations/solver.jl

@@ -40,11 +40,6 @@ solve(prob::AbstractContinuationProblem; kwargs...) =
 function step!(solver::ContinuationSolver)
     predictor_corrector_step!(solver.cache, solver.opts)
 
-    if solver.opts.verbose
-        print(stdout, '.')
-        flush(stdout)
-    end
-
     # Errors are now thrown in predictor_corrector_step!.  I need to
     # reconsider the error handling...
     if ! solver.cache.adaptation_success
@@ -66,7 +61,7 @@ function step!(wrapper::AbstractContinuationSolver, max_steps)
     solver = as(wrapper, ContinuationSolver)
     cache = solver.cache
     cache.h = solver.opts.h0
-    for _ in 1:max_steps
+    @progress_if solver.opts.verbose for _ in 1:max_steps
         step!(wrapper)
         if ! isindomain(cache.u, cache.prob_cache)
             return true

src/utils/misc_utils.jl

@@ -0,0 +1,24 @@
+module MiscUtils
+
+import ProgressLogging
+
+"""
+    @progress_if cond [options...] expr
+
+If `cond` evaluates to `true`, run `@progress(options..., expr)`; otherwise
+just run `expr`.
+
+`options` and `expr` are passed to
+[`ProgressLogging.@progress`](https://junolab.org/ProgressLogging.jl/dev/#ProgressLogging.@progress-Tuple)
+"""
+macro progress_if(cond, args...)
+    quote
+        if $cond
+            $ProgressLogging.@progress($(args...))
+        else
+            $(args[end])
+        end
+    end |> esc
+end
+
+end  # module

src/utils/utils.jl

@@ -1,3 +1,4 @@
 include("array_utils.jl")
 include("fdiff_utils.jl")
 include("poly_utils.jl")
+include("misc_utils.jl")