Add formatter functions (#37)

* add formatting helper functions

* small update to help command

utils/trixisw-format-file.jl

@@ -0,0 +1,43 @@
+#!/usr/bin/env julia
+
+using Pkg
+Pkg.activate(; temp = true, io = devnull)
+Pkg.add(PackageSpec(name = "JuliaFormatter", version = "1.0.45"); preserve = PRESERVE_ALL,
+        io = devnull)
+
+using JuliaFormatter: format_file
+
+function main()
+    # Show help
+    if "-h" in ARGS || "--help" in ARGS
+        println("usage: trixisw-format.jl PATH [PATH...]")
+        println()
+        println("positional arguments:")
+        println()
+        println("    PATH        One or more paths (directories or files) to format. Default: '.'")
+        return nothing
+    end
+
+    file_list = ARGS
+    if isempty(ARGS)
+        exit(0)
+    end
+    non_formatted_files = Vector{String}()
+    for file in file_list
+        println("Checking file " * file)
+        if !format_file(file)
+            push!(non_formatted_files, file)
+        end
+    end
+    if isempty(non_formatted_files)
+        exit(0)
+    else
+        @error "Some files have not been formatted! Formatting has been applied, run 'git add -p' to update changes."
+        for file in non_formatted_files
+            println(file)
+        end
+        exit(1)
+    end
+end
+
+main()

utils/trixisw-format.jl

@@ -0,0 +1,31 @@
+#!/usr/bin/env julia
+
+using Pkg
+Pkg.activate(; temp = true, io = devnull)
+Pkg.add(PackageSpec(name = "JuliaFormatter", version = "1.0.45"); preserve = PRESERVE_ALL,
+        io = devnull)
+
+using JuliaFormatter: format
+
+function main()
+    # Show help
+    if "-h" in ARGS || "--help" in ARGS
+        println("usage: trixisw-format.jl PATH [PATH...]")
+        println()
+        println("positional arguments:")
+        println()
+        println("    PATH        One or more paths (directories or files) to format. Default: '.'")
+        return nothing
+    end
+
+    # Set default path if none is given on command line
+    if isempty(ARGS)
+        paths = String["."]
+    else
+        paths = ARGS
+    end
+
+    return format(paths)
+end
+
+main()