cgit, branch lf/filter

tests/: Add t0111-filter.sh

2014-01-14T11:01:11Z

This adds basic tests for all types of exec filters. Signed-off-by: Lukas Fleischer

filter: refactor cgit_new_filter()

2014-01-14T01:05:14Z

Use prefixcmp() as a preparation for using strip_prefix() later. Also, interpret the command as a file name if it contains a colon but none of the filter prefixes matches instead of bailing out and adding a special check for Windows. Signed-off-by: Lukas Fleischer

makefile: auto-detect presence of various Lua, bsd

2014-01-14T01:00:07Z

We favor LuaJIT over Lua. We disable Lua if neither can be found. We error out if a particular Lua is specified via LUA_IMPLEMENTATION=JIT or LUA_IMPLEMENTATION=VANILLA, but cannot be found. We print a status message depending on what happens. Also, we do not link against libdl on the BSDs, since they include it as part of libc. Signed-off-by: Jason A. Donenfeld

filter: style tweaks

2014-01-14T01:00:07Z

Signed-off-by: Jason A. Donenfeld

filter: add page source to email filter

2014-01-14T01:00:07Z

Since the email filter is called from lots of places, the script might benefit from knowing the origin. That way it can modify its contents and/or size depending. Signed-off-by: Jason A. Donenfeld

filter: add gravatar scripts

2014-01-14T01:00:07Z

The lua one is hugely faster than the python one, but both are included for comparison. Signed-off-by: Jason A. Donenfeld

filter: add support for email filter

2014-01-14T01:00:07Z

Signed-off-by: Jason A. Donenfeld

filter: return on null filter from open and close

2014-01-14T01:00:07Z

So that we don't have to include the if(filter) open_filter(filter) block everywhere, we introduce the guard in the function itself. This should simplify quite a bit of code. Signed-off-by: Jason A. Donenfeld

filter: add lua support

2014-01-14T01:00:07Z

Signed-off-by: Jason A. Donenfeld

filter: basic write hooking infrastructure

2014-01-14T01:00:07Z

Filters can now call hook_write and unhook_write if they want to redirect writing to stdout to a different function. This saves us from potential file descriptor pipes and other less efficient mechanisms. We do this instead of replacing the call in html_raw because some places stdlib's printf functions are used (ui-patch or within git itself), which has its own internal buffering, which makes it difficult to interlace our function calls. So, we dlsym libc's write and then override it in the link stage. While we're at it, we move considerations of argument count into the generic new filter handler. Signed-off-by: Jason A. Donenfeld