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implement Newer, Fsmodule;
include "sys.m";
sys: Sys;
include "draw.m";
include "sh.m";
include "alphabet/reports.m";
Report: import Reports;
include "alphabet/fs.m";
fs: Fs;
Value: import fs;
Cmpchan, Option: import Fs;
Newer: module {};
badmod(p: string)
{
sys->fprint(sys->fildes(2), "fs: size: cannot load %s: %r\n", p);
raise "fail:bad module";
}
types(): string
{
return "m-d";
}
init()
{
sys = load Sys Sys->PATH;
fs = load Fs Fs->PATH;
if(fs == nil)
badmod(Fs->PATH);
fs->init();
}
# select those items in A that are newer than those in B
# or those that exist in A that don't in B.
# if -d flag is given, select all directories in A too.
run(nil: ref Draw->Context, nil: ref Report,
opts: list of Option, nil: list of ref Value): ref Value
{
c := chan of (ref Sys->Dir, ref Sys->Dir, chan of int);
spawn newer(c, opts != nil);
return ref Value.Vm(c);
}
newer(c: Cmpchan, dflag: int)
{
while(((d0, d1, reply) := <-c).t2 != nil){
r: int;
if(d0 == nil)
r = 2r10;
else if(d1 == nil)
r = 2r01;
else if(dflag && (d0.mode & Sys->DMDIR))
r = 2r11;
else {
if(d0.mtime > d1.mtime)
r = 2r01;
else
r= 2r10;
}
reply <-= r;
}
}
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