#!/usr/bin/env bash

rm -f foo.*

echo '
# project dir
p = '"$PWD"'
# object dir
o = '"$PWD"'

rule cp
  command = cp $in $out

rule cc
  depfile = $out.d
  deps = gcc
  command = cc -c $in -o $out -MD -MT $out -MF $out.d

build all: phony $o/foo.o
build $p/foo.h: cp $p/foo.h.in
  IN = $o/foo.h.in
build $o/foo.o: cc $p/foo.c || $p/foo.h
  # A relative path works as expected:
  #IN = foo.c
  # An absolute path shows the bug ?
  IN = "$p/foo.c"

default all
' > build.ninja

echo '
#include "foo.h"
int main(void) { return 0; }
' > foo.c

>foo.h.in

echo 'initial build:'
ninja

echo '--------------------------------------------------'
echo 'sleep to ensure timestamp change'
sleep 1

echo '--------------------------------------------------'
echo 'modify input'
touch foo.h.in

echo '--------------------------------------------------'
echo 'should fully rebuild:'
ninja -v -d explain

echo '--------------------------------------------------'
echo 'should build nothing:'
ninja -v -d explain

echo '--------------------------------------------------'
echo 'should build nothing again:'
ninja -v -d explain