From 969e8b38aee700d0d7159dfde0f42098294cca4a Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Mon, 5 Mar 2018 10:36:54 +0100
Subject: gitupdateunit.pas: timeout eingebaut, pull parallelisiert und
 aufgeräumt
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---
 gitupdateunit.pas | 143 +++++++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 114 insertions(+), 29 deletions(-)

diff --git a/gitupdateunit.pas b/gitupdateunit.pas
index 66d0201..7e305a1 100644
--- a/gitupdateunit.pas
+++ b/gitupdateunit.pas
@@ -7,43 +7,128 @@ interface
 uses
   Classes, SysUtils;
 
+type
+  tGitUpdateThread = class(tThread)
+  private
+    gitVerzeichnis:   string;
+    nummer:           longint;
+    fertig,upgedatet: boolean;
+  public
+    constructor create(num: longint);
+    procedure execute; override;
+  end;
+
 implementation
 
 uses
   process, systemunit, lowlevelunit, refreshExecutableUnit;
 
 var
-  updated:      boolean;
-  output:       string;
-  args,gitDirs: tStringArray;
-  i:            longint;
+  gitVerzeichnisse: tStringArray;
 
-initialization
-  updated:=false;
-
-  setLength(gitDirs,2);
-  gitDirs[0]:=extractFilePath(paramstr(0));
-  gitDirs[1]:=extractFilePath(leftStr(gitDirs[0],length(gitDirs[0])-1))+'units/';
-
-  output:='';
-  for i:=0 to length(gitDirs)-1 do begin
-    updated:=updated or (sourceSha512Sum(gitDirs[i])<>binarySha512Sum(i));
-    setLength(args,3);
-    args[0]:='status';
-    args[1]:='-sb';
-    args[2]:='--porcelain';
-    if not runCommandInDir(gitDirs[i],'git',args,output) then continue;
-    output:=trim(output);
-    if pos(' [behind ',output)=0 then
-      continue;
-    setLength(args,2);
-    args[0]:='pull';
-    args[1]:='--all';
-    if not runCommandInDir(gitDirs[i],'git',args,output) then continue;
-    updated:=true;
+// tGitUpdateThread ************************************************************
+
+constructor tGitUpdateThread.create(num: longint);
+begin
+  inherited create(true);
+  gitVerzeichnis:=extractFilePath(paramstr(0));
+  case num of
+    0: ;
+    1: begin
+      delete(gitVerzeichnis,length(gitVerzeichnis),1);
+      gitVerzeichnis:=extractFilePath(gitVerzeichnis)+'units/';
+    end
+    else
+      fehler('Gitverzeichnis Nummer '+intToStr(num)+' ist mir unbekannt!');
+  end{of case};
+  gitVerzeichnisse[num]:=gitVerzeichnis;
+  fertig:=false;
+  nummer:=num;
+  upgedatet:=false;
+  suspended:=false;
+end;
+
+procedure tGitUpdateThread.execute;
+var
+  args:          tStringArray;
+  output,remote: string;
+  p:             tProcess;
+  dummy:         array of byte;
+  timeOut:       extended;
+begin
+  setLength(args,1);
+  args[0]:='remote';
+  if runCommandInDir(gitVerzeichnis,'git',args,output) then begin
+    while pos(#13,output)>0 do
+      output[pos(#13,output)]:=#10;
+    while length(output)>0 do begin
+      remote:=erstesArgument(output,#10);
+      if remote='' then
+        continue;
+      p:=tProcess.create(nil);
+      p.executable:='git';
+      p.parameters.add('pull');
+      p.parameters.add('--ff-only');
+      p.parameters.add('-v');
+      p.parameters.add('--progress');
+      p.parameters.add(remote);
+      p.options:=[poUsePipes];
+
+      setLength(dummy,1024);
+      p.execute;
+      timeOut:=now;
+      p.closeInput;
+
+      while (timeOut+10/24/60/60 > now) and p.running do begin
+        if p.output.numBytesAvailable>0 then begin
+          p.output.read(dummy[0],length(dummy));
+          timeOut:=now;
+          continue;
+        end;
+        if p.stderr.numBytesAvailable>0 then begin
+          p.stderr.read(dummy[0],length(dummy));
+          timeOut:=now;
+          continue;
+        end;
+        sleep(10);
+      end;
+      p.closeOutput;
+      p.closeStderr;
+      p.free;
+    end;
   end;
-  if updated then
-    refreshExecutable(gitDirs);
   setLength(args,0);
+  setLength(dummy,0);
+  upgedatet:=sourceSha512Sum(gitVerzeichnis)<>binarySha512Sum(nummer);
+  fertig:=true;
+end;
+
+var
+  gitUpdateThreads: array of tGitUpdateThread;
+  fertig,upgedatet: boolean;
+  i:                longint;
+
+initialization
+  setLength(gitUpdateThreads,2);
+  setLength(gitVerzeichnisse,length(gitUpdateThreads));
+  for i:=0 to length(gitUpdateThreads)-1 do
+    gitUpdateThreads[i]:=tGitUpdateThread.create(i);
+
+  repeat
+    fertig:=true;
+    upgedatet:=false;
+    for i:=0 to length(gitUpdateThreads)-1 do begin
+      fertig:=fertig and gitUpdateThreads[i].fertig;
+      upgedatet:=upgedatet or gitUpdateThreads[i].upgedatet;
+    end;
+    if not fertig then
+      sleep(10);
+  until fertig;
+
+  for i:=0 to length(gitUpdateThreads)-1 do
+    gitUpdateThreads[i].free;
+
+  if upgedatet then
+    refreshExecutable(gitVerzeichnisse);
 end.
 
-- 
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