- Make sure the Makefile is up-to-date before running "make gen".

[rsync/rsync.git] / support / patch-update

diff --git a/support/patch-update b/support/patch-update
index 4ed8446..7c51e9c 100755 (executable)
--- a/support/patch-update
+++ b/support/patch-update
@@ -7,25 +7,38 @@
 
 use strict;
 
-die "No 'patches' directory present in the current dir.\n" unless -d 'patches';
-die "No '.git' directory present in the current dir.\n" unless -d '.git';
-
-open(IN, '<', 'prepare-source.mak') or die "Couldn't open prepare-source.mak: $!\n";
-$_ = join('', <IN>);
-close IN;
-
-my @extra_files = m{\n([^\s:]+):.*\n\t\S}g;
+my $patches_dir = 'patches';
 my $incl_generated_files;
 
-$incl_generated_files = shift if @ARGV && $ARGV[0] eq '--gen';
+if (@ARGV && $ARGV[0] =~ /^--gen(?:=(\S+))?$/) {
+    $patches_dir = $1 if defined $1;
+    $incl_generated_files = 1;
+    shift;
+}
+
+die "No '$patches_dir' directory was found.\n" unless -d $patches_dir;
+die "No '.git' directory present in the current dir.\n" unless -d '.git';
 
-system "git-checkout master" and exit 1;
+my @extra_files;
+open(IN, '<', 'Makefile.in') or die "Couldn't open Makefile.in: $!\n";
+while (<IN>) {
+    if (s/^GENFILES=//) {
+       while (s/\\$//) {
+           $_ .= <IN>;
+       }
+       @extra_files = split(' ', $_);
+       last;
+    }
+}
+close IN;
 
+system "git checkout master" and exit 1;
 if ($incl_generated_files) {
-    die "'a' already exists.\n" if -e 'a';
-    die "'b' already exists.\n" if -e 'b';
-    system "./prepare-source && rsync -a @extra_files a/" and exit 1;
+    die "'a' must not exist in the current directory.\n" if -e 'a';
+    die "'b' must not exist in the current directory.\n" if -e 'b';
+    system "./config.status Makefile && make gen && rsync -a @extra_files a/" and exit 1;
 }
+my $last_touch = time;
 
 my(@patches, %local_patch);
 if (@ARGV) {
@@ -34,9 +47,9 @@ if (@ARGV) {
        s{\.diff$} {};
        push(@patches, $_);
     }
-    open(PIPE, '-|', 'git-branch', '-l') or die $!;
+    open(PIPE, '-|', 'git', 'branch', '-l') or die $!;
 } else {
-    open(PIPE, '-|', 'git-branch', '-a') or die $!;
+    open(PIPE, '-|', 'git', 'branch', '-a') or die $!;
 }
 while (<PIPE>) {
     if (m# origin/patch/(.*)#) {
@@ -47,45 +60,91 @@ while (<PIPE>) {
 }
 close PIPE;
 
+my(%parent, %description);
+foreach my $patch (@patches) {
+    my $branch = ($local_patch{$patch} ? '' : 'origin/') . "patch/$patch";
+    my $desc = '';
+    open(PIPE, '-|', 'git', 'diff', '-U1000', "master...$branch", '--', "PATCH.$patch") or die $!;
+    while (<PIPE>) {
+       last if /^@@ /;
+    }
+    while (<PIPE>) {
+       next unless s/^[ +]//;
+       if (m#patch -p1 <patches/(\S+)\.diff# && $1 ne $patch) {
+           $parent{$patch} = $1;
+       }
+       $desc .= $_;
+    }
+    $description{$patch} = $desc;
+}
+
+my %completed;
 foreach my $patch (@patches) {
+    next if $completed{$patch}++;
+    update_patch($patch);
+}
+
+if ($incl_generated_files) {
+    system "rm -rf a b";
+}
+
+sleep 1 if $last_touch == time;
+system "git checkout master";
+
+exit;
+
+
+sub update_patch
+{
+    my($patch) = @_;
+
+    my $parent = $parent{$patch};
+    if (defined $parent) {
+       unless ($completed{$parent}++) {
+           update_patch($parent);
+       }
+       $parent = "patch/$parent";
+    } else {
+       $parent = 'master';
+    }
+
     print "======== $patch ========\n";
+
+    sleep 1 if $incl_generated_files && $last_touch == time;
     if ($local_patch{$patch}) {
-       system "git-checkout patch/$patch" and exit 1;
+       system "git checkout patch/$patch" and exit 1;
     } else {
-       system "git-checkout --track -b patch/$patch origin/patch/$patch" and exit 1;
+       system "git checkout --track -b patch/$patch origin/patch/$patch" and exit 1;
     }
-    my $parent = 'master';
-    open(IN, '<', 'PATCH') or next;
-    open(OUT, '>', "patches/$patch.diff") or die $!;
 
-    while (<IN>) {
-       if (m#patch -p1 <patch/(\S+)\.diff# && $1 ne $patch) {
-           $parent = $1;
-       }
-       print OUT $_;
-    }
-    close IN;
-    print OUT "\n";
+    open(OUT, '>', "$patches_dir/$patch.diff") or die $!;
+    print OUT $description{$patch}, "\n";
 
-    if (system("git-rebase -m $parent") != 0) {
-       print qq|"git-rebase -m $parent" incomplete -- please fix.\n|;
+    if (system("git rebase -m $parent") != 0) {
+       print qq|"git rebase -m $parent" incomplete -- please fix.\n|;
        $ENV{PS1} = "[$parent] patch/$patch: ";
-       system $ENV{SHELL};
+       system $ENV{SHELL} and exit 1;
     }
 
-    open(PIPE, '-|', 'git-diff', 'master') or die $!;
-    while (<PIPE>) {
-       last if m{^diff --git a/PATCH b/PATCH$};
-       print OUT $_;
+    if ($incl_generated_files) {
+       system "./config.status Makefile && make gen && rsync -a @extra_files b/" and exit 1;
     }
-    while (<PIPE>) {
-       last if m{^diff --git a/};
+    $last_touch = time;
+
+    open(PIPE, '-|', 'git', 'diff', $parent) or die $!;
+    DIFF: while (<PIPE>) {
+       while (m{^diff --git a/PATCH}) {
+           while (<PIPE>) {
+               last if m{^diff --git a/};
+           }
+           last DIFF if !defined $_;
+       }
+       next if /^index /;
+       print OUT $_;
     }
-    print OUT $_, <PIPE>;
     close PIPE;
 
     if ($incl_generated_files) {
-       system "./prepare-source && rsync -a @extra_files b/" and exit 1;
        open(PIPE, '-|', 'diff', '-up', 'a', 'b') or die $!;
        while (<PIPE>) {
            s/^((?:---|\+\+\+) [^\t]+)\t.*/$1/;
@@ -96,10 +155,3 @@ foreach my $patch (@patches) {
 
     close OUT;
 }
-
-if ($incl_generated_files) {
-    system "rm -rf a b";
-}
-
-print "-------- master --------\n";
-system "git-checkout master && ./prepare-source";