send resize events to tog child views as well as parent views problem found by naddy ok naddy

fix crashes when the 'tog log' view reloads displayed data This reimplements log view reloading (Ctrl-L), logging of a parent path (Backspace), and the toggle to show commits on branches (B). The idea is to reuse the existing log view and change its state, instead of allocating a new view with a new state and replacing the existing view. Fixes a segfault that occurs when a parent path is logged with Backspace: tog tree -r got.git -c 0.44 pick tog/tog.c 'l' Backspace -> tog will segfault The first change in this patch is a partial fix. The log thread should always check the 'quit' flag as soon as it wakes from sleep. Otherwise it could try to load more commits after waking up and before checking the 'quit' flag. It will then attempt to load commits with a NULL commit graph pointer. This partial fix by itself is not sufficient to fix the crash, since we'll now see a bus error in the main thread, instead of a NULL deref in the log thread. The remainder of the patch fixes this bus error. ok naddy

plug leak of ref in cmd_tree(); found by naddy

make tog tree view keep track of branches/tags specified via -c ok naddy

make ^L in the tog log view stick to branches/tags selected via the -c option Previously, the log view would remember the branch of the work tree in which tog was started, and jump back to that branch upon ^L even if a different branch was requested via -c. ok naddy

make got_repo_object_match_tag() work with absolute reference names Bug triggered by naddy while testing a patch for tog. ok naddy

do not recompute the displayed diff if '<' or '>' command cannot advance Recomputing a diff can take time. Only do it if a different commit is going to be displayed.

garbage-collect pointless main_view variable in view_loop() This short-cut is not necessary and was buggy: The pointer was not updated even if the main view had changed. Removing this code fixes a problem on FreeBSD where pressing 'q' in a child view caused tog to exit. ok naddy

fix move to next/prev commit in diff view when the log view is not displayed Original analysis and final tweak by yours truly, all the hard work of fixing the program logic by stsp. ok stsp

pass reference name along when a log view is opened from a ref view ok naddy

replace 'focus_view' output param of view_input with 'view->focussed'

make tog call pledge(2) directly in main() instead of per-command All of tog's pledges are currently the same, and they must be the same because tog allows switching between available command views at run-time. ok tracey

remove unused function got_path_get_absolute(); realpath(3) is usually better

in got_repo_open(), let realpath(3) take care of relative paths

replace dead_view pointer in view_loop() with 'dying' flag in struct tog_view ok naddy

tog's view_set_child() never returned an error; simplify accordingly ok naddy

remove redundant "child_focussed" variable from struct tog_view ok naddy

tog's log view needs to request more commits when the window expands ok stsp

pass only the view state to scroll functions that don't need the full view ok stsp

reverse tree_view_visit_subtree() parameters for consistency ok stsp

trim repo parameter from tree_view_walk_path(), already set by open_tree_view() ok stsp

trim redundant and used parameters from draw_tree_entries() ok stsp

trim redundant parameters from draw_blame() ok stsp

trim redundant parameters from draw_file() ok stsp

trim redundant and unused parameters from draw_commits() and draw_commit() ok stsp