This will hopefully fix issues seen on servers where gotsh exits early for no good reason.

When checking out over a pre-existing directory tree with -E, got would store the checkout timestamp in the fileindex and so not detect local edits until those files are touch(1)ed again. Instead, detect that a file already exists during checkout and don't update its {c,m}time, leaving them to zero (the epoch), so a subsequent `got status' will look at its contents. While here, change the status char for such file from ? to E, which is what the manpage actually documents. Issue reported by naddy@ ok stsp@

ok op@

Fixes 'No newline at end of file' message appearing in unexpected places. Problem noticed by op@

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!)

When browsing the history of a file, the more button should generate a link containing the file= parameter, otherwise we switch back to the 'global' history. Spotted by stsp@

This greatly reduces the number of tp_puts() calls: gotwebd' pages.tmpl goes from 444 to 190. Otherwise, this doesn't produce other observable changes.

First round of polishing, css simplification and responsiveness for gotwebd. The new HTML is now actually usable on text-only browsers and the fonts are bigger on smaller screens; close to no changes for "normal" desktop usage. A few regressions were spotted by Lucas on IRC, thanks! No objections from stsp@

When trying to open a worktree from a list of metadata directories (.got, .cvg), error out when a worktree is found but is already locked. Skipping it and proceeding would result in a confusing "no git repository found" error from tog and gotadmin. ok stsp

Fixes a crash regression introduced when fetch/send were made to close the work tree earlier.

This required minor changes to tog.c to teach tog the new test instructions and feed it search terms when driven by the harness. More is needed for these features but this provides some basic coverage for the & and / log keymaps. ok stsp

This avoids having work tree operations blocked while network transfers are in progress. ok op@

Previously these were hidden behind a general "compression failed" error. ok kn

This restores the traditional diff -p behaviour in Got.

Some people are eager to try to make Got work just like Git by overlaying the repository and work tree. This causes problems with unveil conflicts at run-time. Fail as early as possible during 'got checkout' when users attempt this. cosmetic tweaks + ok op@

Based on a patch by gonzalo@ ok op@

If a locally added file in A status gets deleted from disk it will move into missing ! status. If the user then decides to delete the file we must remove the file index entry immediately rather than flagging the file for removal during the next commit operation. The file was never committed and lacks a base-blob and base-commit, so it cannot be removed during the next commit. As a result the commit operation was reporting a bogus "out of date" error. Found while diagnosing a related bug reported by gonzalo@ ok op@

If creating the /tmp display diff for a commitable item failed we would free the commitable item while it was already on the path list. Later on when the path list was freed in got_worktree_commit() a double-free would be detected and the program would be aborted. Found by gonzalo@ ok op@