Add error handling for invalid package directories

src/generate.jl

@@ -89,7 +89,15 @@ function generate(
     info("Committed files generated by PkgTemplates")
     multiple_branches = length(collect(LibGit2.GitBranchIter(repo))) > 1
     info("Moving temporary package directory into $(t.dir)/")
+    try
+        mkpath(dirname(pkg_dir))
         mv(temp_pkg_dir, pkg_dir; remove_destination=force)
+    catch  # Likely cause is that t.path can't be created (is a file, etc.).
+        # We need another temporary directory because temp_pkg_dir is about to be removed.
+        temp_dir = mktempdir()
+        mv(temp_pkg_dir, joinpath(temp_dir, pkg_name))
+        warn("$pkg_name couldn't be moved into $pkg_dir, left package in $temp_dir")
+    end
 
     info("Finished")
     if multiple_branches

src/template.jl

@@ -24,7 +24,8 @@ create a template, you can use [`interactive_template`](@ref) instead.
   git config's value, if it is left unset.
 * `years::Union{Integer, AbstractString}=Dates.year(Dates.today())`: Copyright years on the
   license. Can be supplied by a number, or a string such as "2016 - 2017".
-* `dir::AbstractString=Pkg.dir()`: Directory in which the package will go.
+* `dir::AbstractString=Pkg.dir()`: Directory in which the package will go. Relative paths
+  are converted to absolute ones at template creation time.
 * `julia_version::VersionNumber=VERSION`: Minimum allowed Julia version.
 * `requirements::Vector{String}=String[]`: Package requirements. If there are duplicate
   requirements with different versions, i.e. ["PkgTemplates", "PkgTemplates 0.1"],
@@ -100,7 +101,7 @@ create a template, you can use [`interactive_template`](@ref) instead.
         end
 
         new(
-            user, host, license, authors, years, dir, julia_version,
+            user, host, license, authors, years, abspath(dir), julia_version,
             requirements_dedup, gitconfig, plugin_dict,
         )
     end

test/interactive.jl

@@ -29,7 +29,7 @@
     @test !isempty(t.license)
     @test t.authors == me
     @test t.years == "2016"
-    @test t.dir == test_file
+    @test t.dir == abspath(test_file)
     @test t.julia_version == v"0.5.0"
     @test Set(t.requirements) == Set(["X", "Y"])
     @test t.gitconfig == Dict("A" => "B")

test/tests.jl

@@ -60,7 +60,7 @@ write(test_file, template_text)
     @test t.authors == "Guy, Gal"
 
     t = Template(; user=me, dir=test_file)
-    @test t.dir == test_file
+    @test t.dir == abspath(test_file)
 
     t = Template(; user=me, julia_version=v"0.1.2")
     @test t.julia_version == v"0.1.2"
@@ -377,6 +377,13 @@ end
     @test isfile(Pkg.dir(test_pkg, "README.md"))
     rm(Pkg.dir(test_pkg); recursive=true)
 
+    # Note: These tests will leave temporary directories on disk.
+    temp_file = mktemp()[1]
+    t = Template(; user=me, dir=temp_file, gitconfig=gitconfig)
+    @test_warn r".+" generate(test_pkg, t)
+    t = Template(; user=me, dir=joinpath(temp_file, temp_file), gitconfig=gitconfig)
+    @test_warn r".+" generate(test_pkg, t)
+
     t = Template(; user=me, gitconfig=gitconfig, plugins=[GitHubPages()])
     generate(test_pkg, t)
     readme = readstring(Pkg.dir(test_pkg, "README.md"))