Bjørn Erik Pedersen 3f0f7eed68 Improve error handling in commands ...

Cobra, the CLI commander in use in Hugo, has some long awaited improvements in the error handling department.
This enables a more centralized error handling approach.

This commit introduces that by changing all the command funcs to `RunE`:

* The core part of the error logging, usage logging and `os.Exit(-1)` is now performed in one place and that one place only.
* The usage text is now only shown on invalid arguments etc. (user errors)

Fixes #1502

2015-12-02 07:07:05 -07:00

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author.go

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benchmark_test.go

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datafiles_test.go

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handler_base.go

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handler_file.go

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handler_meta.go

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handler_page.go

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handler_test.go

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hugo.go

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media.go

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menu_test.go

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menu.go

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node.go

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page_permalink_test.go

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page_taxonomy_test.go

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page_test.go

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page_time_integration_test.go

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page.go

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pageCache_test.go

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pageCache.go

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pageGroup_test.go

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pageGroup.go

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pageSort_test.go

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pageSort.go

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pagesPrevNext_test.go

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pagesPrevNext.go

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pagination_test.go

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pagination.go

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path_separators_test.go

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path_separators_windows_test.go

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permalinks_test.go

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permalinks.go

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planner.go

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redis.cn.md

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rss_test.go

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scratch_test.go

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scratch.go

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shortcode_test.go

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shortcode.go

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shortcodeparser_test.go

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shortcodeparser.go

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site_show_plan_test.go

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site_test.go

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site_url_test.go

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site.go

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siteinfo_test.go

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siteJSONEncode_test.go

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sitemap_test.go

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sitemap.go

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summary.go

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taxonomy_test.go

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taxonomy.go

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