This also includes a refactor of the hugofs package and its usage.
The motivation for that is:
The Afero filesystems are brilliant. Hugo's way of adding a dozen of global variables for the different filesystems was a mistake. In readFile (and also in some other places in Hugo today) we need a way to restrict the access inside the working dir. We could use ioutil.ReadFile and implement the path checking, checking the base path and the dots ("..") etc. But it is obviously better to use an Afero BasePathFs combined witha ReadOnlyFs. We could create a use-once-filesystem and handle the initialization ourselves, but since this is also useful to others and the initialization depends on some other global state (which would mean to create a new file system on every invocation), we might as well do it properly and encapsulate the predefined set of filesystems. This change also leads the way, if needed, to encapsulate the file systems in a struct, making it possible to have several file system sets in action at once (parallel multilanguage site building? With Moore's law and all...)
Fixes#1551
Setting `RelativeURLs` to `true` will make all relative URLs in the site *really* relative.
And will do so with speed.
So:
In `/post/myblogpost.html`:
`/mycss.css` becomes `../mycss.css`
The same in `/index.html` will become:
`./mycss.css` etc.
Note that absolute URLs will not be touched (either external resources, or URLs constructed with `BaseURL`).
The speediness is about the same as before:
```
benchmark old ns/op new ns/op delta
BenchmarkAbsURL 17462 18164 +4.02%
BenchmarkAbsURLSrcset 18842 19632 +4.19%
BenchmarkXMLAbsURLSrcset 18643 19313 +3.59%
BenchmarkXMLAbsURL 9283 9656 +4.02%
benchmark old allocs new allocs delta
BenchmarkAbsURL 24 28 +16.67%
BenchmarkAbsURLSrcset 29 32 +10.34%
BenchmarkXMLAbsURLSrcset 27 30 +11.11%
BenchmarkXMLAbsURL 12 14 +16.67%
benchmark old bytes new bytes delta
BenchmarkAbsURL 3154 3404 +7.93%
BenchmarkAbsURLSrcset 2376 2573 +8.29%
BenchmarkXMLAbsURLSrcset 2569 2763 +7.55%
BenchmarkXMLAbsURL 1888 1998 +5.83%
```
Fixes#1104Fixes#622Fixes#937Fixes#157
`404.html` needs to be that and not `/404/` in the root.
There seem to be content pages in the wild with the name `404` (Hugo docs),
so this commit adds an extra check so only root 404 pages ignore the `uglifyURLs`setting.
Fixes#1140
First step to use initialisms that golint suggests,
for example:
Line 116: func GetHtmlRenderer should be GetHTMLRenderer
as see on http://goreportcard.com/report/spf13/hugo
Thanks to @bep for the idea!
Note that command-line flags (cobra and pflag)
as well as struct fields like .BaseUrl and .Url
that are used in Go HTML templates need more work
to maintain backward-compatibility, and thus
are NOT yet dealt with in this commit.
First step in fixing #959.
File handling was broken on Windows. This commit contains a revision of the path handling with separation of file paths and urls where needed.
There may be remaining issues and there may be better ways to do this, but it is easier to start that refactoring job with a set of passing tests.
Fixes#687Fixes#660
