gotwebd: guard against missig folder and file parameter in BLOB and BLAME ok stsp

gotwebd: retire max_repos setting Unlike max_repos_display which limits the number of items per page, max_repos is an hard-limit on the number of repos gotwebd would process. "kill it with fire" tracey@ about the idea ok stsp

gotwebd: add knob for the number of tags and commits in the summary page ok jamsek

gotwebd: remove PAGE handling The page querystring parameter is long gone and currently unused. It was replaced mith the "more" buttons in all the views, except INDEX that uses `index_page'. ok jamsek

gotwebd: use nitems() instead of ACTIONS__MAX I feel safer by using the explicit size of the table rather than an hypothetical maximum value given by the enum. Mostly because in the past I edited a table and forgot to remove the corresponding enum value. ok stsp@

drop unnecessary zeroing after calloc()

gotwebd: use 'more' for the tag listing too prodded by stsp and jamsek; ok stsp@

gotwebd: render less tags in the summary page suggested / ok stsp

gotwebd: render READMEs in the tree view ok tracey@

gotwebd: add patch action to serve diffs in plain text ok tracey@

refactor gotweb_load_got_path; no functional change ok tracey@

remove the gotwebd repository cache It only had 4 slots so was never quite useful, and sharing of sock->pack_fds across cached repositories seems problematic. with help from + ok op@

whitespace fix

gotwebd: get rid of proc.[ch] proc.c really shines when there's a network of different types of processes, potentially with a various number of instances each, that needs to exchange messages. Gotwebd instead has a much simpler design, and using proc.c causes more overhead (/headaches) than it solves. So, this attempts to provide the same functionalities but with a much simpler implementation that fits gotwebd better. ok stsp@

gotwebd: improve gotwebd_assign_querystring() This prevents the issues that we just hit with forgetting to remove PREVID: instead of relying on the enum value to yield the size of a table, use nitems(). Also, quit as soon as the matching key was found, no need to iterate further. ok stsp@

gotwebd: render all the datetimes in a time tag fixes an unused variable that should have been dropped in previous commit too. ok stsp@

gotwebd: inline the only use of TM_RFC822

gotwebd: move the buffering from the fastcgi layer to the template Reduces the indirection in fcgi.c, starts to make the struct template opaque, simplifies the template usage. All with a net negative :-) reads fine to stsp@ (thanks!)

gotwebd: fix branches modification time with show_repo_age off If show_repo_age is set to off, got_get_repo_age() returns without setting the timestamp. got_get_repo_age() is also used by the branch listing to show how old they are however, and we end up rendering the stack garbage. Instead, respect `show_repo_age off' one layer above, and always return a timestamp in got_get_repo_age(). While here, initialize the timestamp to zero so it's set also in case of failures. Issue reported on IRC by xs, thanks!

bubble up got_repo_commits() now that got_get_repo_commits() doesn't look at `action' we can stop fetching the commits during the rendering and bubble up the call. This yields better error messages and better replies codes on failure.

simplify gotwebd' server matching Currently, if there is not a match on the server name, it attempts to match the "subdomain" against the server names, and fall back to the first server defined. The server name is taken from the SERVER_NAME fastcgi' parameter, the subdomain extracted from HTTP_HOST. Keep only the SERVER_NAME matching, but still use the first server defined if there's no match. Fix the manpage documenting how matching works and drop the lie about SNI as gotwebd doesn't do TLS but just looks at what the upstream http server decided. ok stsp@

retire GOT_ERR_QUERYSTRING it's redundant with GOT_ERR_BAD_QUERYSTRING; convert its only use to the latter.

dropping unnecessary strlen()s ok jamsek, stsp

gotwebd: fix some got_error_from_errno2/3 calls it's not printf-like so %s don't make sense. Tweak the order of the arguments to obtain the intended output.

don't zero fields of a calloc()-allocated struct