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-rwxr-xr-xsrc/luaotfload-tool.lua55
1 files changed, 41 insertions, 14 deletions
diff --git a/src/luaotfload-tool.lua b/src/luaotfload-tool.lua
index 4c915cf..6f1f0a1 100755
--- a/src/luaotfload-tool.lua
+++ b/src/luaotfload-tool.lua
@@ -793,6 +793,13 @@ local bisect_status_fmt = [[
--- vim:ft=lua:ts=8:et:sw=2
]]
+--[[doc--
+
+ write_bisect_status -- Write the history of the current bisection to disk.
+
+--doc]]--
+
+--- state list -> bool
local write_bisect_status = function (data)
local payload = tableserialize (data, true)
local status = stringformat (bisect_status_fmt,
@@ -810,6 +817,29 @@ end
--[[doc--
+ read_bisect_status -- Read the bisect log from disk.
+
+--doc]]--
+
+--- unit -> state list
+local read_bisect_status = function ()
+ report ("info", 4, "bisect", "Testing for status file: %q.", bisect_status_file)
+ if not lfsisfile (bisect_status_file) then
+ report ("info", 2, "bisect", "No such file: %q.", bisect_status_file)
+ report ("info", 0, "bisect", "Not in bisect mode.")
+ return false
+ end
+ report ("info", 4, "bisect", "Reading status file: %q.", bisect_status_file)
+ local success, status = pcall (dofile, bisect_status_file)
+ if not success then
+ report ("info", 0, "bisect", "Could not read status file.")
+ return false
+ end
+ return status
+end
+
+--[[doc--
+
bisect_start -- Begin a bisect session. Determines the number of
fonts and sets the initial high, low, and pivot values.
@@ -875,24 +905,21 @@ end
--doc]]--
local bisect_status = function ()
- report ("info", 4, "bisect", "Testing for status file: %q.", bisect_status_file)
- if not lfsisfile (bisect_status_file) then
- report ("info", 2, "bisect", "No such file: %q.", bisect_status_file)
- report ("info", 0, "bisect", "Not in bisect mode.")
- return true
- end
- report ("info", 4, "bisect", "Reading status file: %q.", bisect_status_file)
- local status = pcall (dofile, bisect_status_file)
+ local status = read_bisect_status ()
if not status then
- report ("info", 0, "bisect", "Could not read status file.")
return false
end
- report ("info", 0, "bisect", "Bisecting through %d font files.", #status)
- for i = #status, 1, -1 do
- local step = status[i]
- report ("info", 0, "bisect", "Step %d: lo=%d, hi=%d, pivot=%d.",
- i, unpack (step))
+ local nsteps = #status
+ if nsteps > 1 then
+ for i = nsteps - 1, 1, -1 do
+ local step = status[i]
+ report ("info", 2, "bisect", "Step %d: lo=%d, hi=%d, pivot=%d.",
+ i, unpack (step))
+ end
end
+ local current = status[nsteps]
+ report ("info", 0, "bisect", "Step %d: lo=%d, hi=%d, pivot=%d.",
+ nsteps, unpack (current))
return true
end