ninjatimeline

commit cc32b2114175e80b7cd22241816b823fc393f154
Author: Michael Savage <mikejsavage@gmail.com>
Date:   Wed,  5 Dec 2018 19:40:28 +0200

Initial commit

Diffstat:
ninjatimeline.lua
 | 
51
+++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 51 insertions(+), 0 deletions(-)
diff --git a/ninjatimeline.lua b/ninjatimeline.lua
@@ -0,0 +1,51 @@
+#! /usr/bin/lua
+
+local log = io.open( ".ninja_log", "r" ):read( "*all" )
+
+local edges = { }
+
+for line in log:gmatch( "([^\n]+)" ) do
+	local start, finish, target = line:match( "^(%d+)%s+(%d+)%s+%d+%s+(%S+)" )
+	if start then
+		table.insert( edges, {
+			start = tonumber( start ),
+			dt = tonumber( finish ) - tonumber( start ),
+			target = target:match( "[^/]+$" ),
+		} )
+	end
+end
+
+table.sort( edges, function( a, b )
+	return a.start < b.start
+end )
+
+local function term_width()
+	local p = io.popen( "tput cols", "r" )
+	if not p then
+		return
+	end
+
+	local c = p:read( "*all" )
+	p:close()
+
+	return tonumber( c )
+end
+
+local notches = term_width()
+if notches then
+	notches = notches - 33
+else
+	notches = 200
+end
+
+local total_duration = edges[ #edges ].start + edges[ #edges ].dt
+local c = 0
+for _, e in ipairs( edges ) do
+	local pre = math.floor( notches * e.start / total_duration )
+	local width = math.max( 0, math.floor( notches * e.dt / total_duration - 2 ) )
+
+	local color = ( "\027[0;%dm" ):format( c + 31 )
+	c = ( c + 1 ) % 7
+
+	print( ( "%s%25s: %s[%s] %.2fs" ):format( color, e.target, string.rep( " ", pre ), string.rep( ">", width ), e.dt / 1000 ) )
+end