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1 | #!/usr/bin/perl -w |
2 | |
3 | |
4 | # p4genpatch - Generate a perl patch from the repository |
5 | |
6 | # Usage: $0 -h |
7 | |
8 | # andreas.koenig@anima.de |
9 | |
10 | use strict; |
11 | use File::Temp qw(tempdir); |
12 | use File::Compare; |
13 | use Time::Local; |
14 | |
15 | sub correctmtime ($$$); |
16 | sub Usage (); |
17 | |
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18 | my $VERSION = '0.04'; |
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19 | $0 =~ s|^.*/||; |
20 | our(%OPT, @P4opt); |
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21 | %OPT = ( "d" => "u", b => "//depot/perl", "D" => "diff" ); |
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22 | use Getopt::Long; |
23 | Getopt::Long::Configure("no_ignore_case"); |
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24 | GetOptions(\%OPT, "b=s", "p=s", "d=s", "D=s", "h", "v", "V") or die Usage; |
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25 | print Usage and exit if $OPT{h}; |
26 | print "$VERSION\n" and exit if $OPT{V}; |
27 | die Usage unless @ARGV == 1; |
28 | |
29 | for my $p4opt (qw(p)) { |
30 | push @P4opt, "-$p4opt $OPT{$p4opt}" if $OPT{$p4opt}; |
31 | } |
32 | |
33 | my $system = "p4 @P4opt describe -s @ARGV |"; |
34 | open my $p4, $system or die "Could not run $system"; |
35 | my @action; |
36 | while (<$p4>) { |
37 | print; |
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38 | next unless m|($OPT{b})|; |
39 | my($prefix) = $1; |
40 | $prefix =~ s|/[^/]+$||; # up to the last "/" in the match is to be stripped |
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41 | if (my($file,$action) = m|^\.\.\. (//depot.*)\s(\w+)$|) { |
42 | next if $action eq "delete"; |
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43 | push @action, [$action, $file, $prefix]; |
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44 | } |
45 | } |
46 | close $p4; |
47 | |
48 | my $tempdir; |
49 | print "Differences ...\n"; |
50 | for my $a (@action) { |
51 | $tempdir ||= tempdir( "tmp-XXXX", CLEANUP => 1 ); |
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52 | my($action,$file,$prefix) = @$a; |
53 | my($path,$basename,$number) = $file =~ m|\Q$prefix\E/(.+/)?([^/]+)#(\d+)|; |
54 | die "Panic: Could not parse file[$file]" unless $number; |
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55 | $path = "" unless defined $path; |
56 | my($d1,$d2,$prev); |
57 | $prev = $number-1; |
58 | if ($prev==0 or $action =~ /^(add|branch)$/) { |
59 | $d1 = "/dev/null"; |
60 | } elsif ($action =~ /^(edit|integrate)$/) { |
61 | $d1 = "$path$basename#$prev"; |
62 | warn "==> $d1 <==\n" if $OPT{v}; |
63 | my $system = "p4 @P4opt print -o $tempdir/$d1 //depot/$path$basename#$prev"; |
64 | my $status = `$system`; |
65 | if ($?) { |
66 | warn "$0: system[$system] failed, status[$?]\n"; |
67 | next; |
68 | } |
69 | if (my($prevch) = $status =~ / \s change \s (\d+) \s /x) { |
70 | my $oldd1 = $d1; |
71 | $d1 .= "~$prevch~"; |
72 | rename "$tempdir/$oldd1", "$tempdir/$d1"; |
73 | } |
74 | } else { |
75 | die "Unknown action[$action]"; |
76 | } |
77 | $d2 = "$path$basename"; |
78 | warn "==> $d2#$number <==\n" if $OPT{v}; |
79 | my $system = "p4 @P4opt print -o $tempdir/$d2 $file"; |
80 | # warn "system[$system]"; |
81 | my $type = `$system`; |
82 | if ($?) { |
83 | warn "$0: `$system` failed, status[$?]\n"; |
84 | next; |
85 | } |
86 | $type =~ m|^//.*\((.+)\)$| or next; |
87 | $type = $1; |
88 | if (File::Compare::compare("$tempdir/$d1", "$tempdir/$d2")) { |
89 | print "\n==== $file ($type) ====\nIndex: $path$basename\n"; |
90 | unless ($type =~ /text/) { |
91 | next; |
92 | } |
93 | my @filelog = `p4 @P4opt filelog $file`; |
94 | correctmtime(\@filelog,$prev,"$tempdir/$d1"); |
95 | correctmtime(\@filelog,$number,"$tempdir/$d2"); |
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96 | $system = "cd $tempdir && $OPT{D} -$OPT{d} '$d1' '$d2'"; |
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97 | system($system); # no return check because diff doesn't always return 0 |
98 | } |
99 | for ("$tempdir/$d1","$tempdir/$d2") { |
100 | unlink or warn "Could not unlink $_: $!" if -f; |
101 | } |
102 | } |
103 | print "End of Patch.\n"; |
104 | |
105 | sub correctmtime ($$$) { |
106 | my($filelog,$nr,$file) = @_; |
107 | for my $line (@$filelog) { |
108 | my($rev,$change,$action,$date) = |
109 | $line =~ m{ ^ \.\.\. \s |
110 | \# |
111 | (\d+) # rev |
112 | \s change \s |
113 | (\d+) # change |
114 | \s (\w+) \s # action |
115 | on \s (\S+) # date |
116 | }x or next; |
117 | # warn "rev[$rev]"; |
118 | next unless $rev == $nr; |
119 | my(@date) = split m|/|, $date; |
120 | $date[0] -= 1900; |
121 | $date[1]--; |
122 | my $time = timelocal(0,0,0,reverse @date); |
123 | utime $time, $time, $file; |
124 | last; |
125 | } |
126 | } |
127 | |
128 | sub Usage () { |
129 | qq{Usage: $0 [OPTIONS] patchnumber |
130 | |
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131 | -p host:port p4 port (e.g. myhost:1666) |
132 | -d diffopt option to pass to diff(1) |
133 | -D diff diff(1) to use |
134 | -b branch(es) which branches to include (regex); everything up |
135 | to the last slash of matched portion of path is |
136 | stripped on local copy (default: //depot/perl) |
137 | -v verbose |
138 | -h print this help and exit |
139 | -V print version number and exit |
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140 | |
141 | Fetches all required files from the repository, puts them into a |
142 | temporary directory with sensible names and sensible modification |
143 | times and composes a patch to STDOUT using external diff command. |
144 | Requires repository access. |
145 | |
146 | Examples: |
147 | perl $0 12345 | gzip -c > 12345.gz |
148 | perl $0 -dc 12345 > change-12345.patch |
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149 | perl $0 -b //depot/maint-5.6/perl -v 8571 > 8571 |
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150 | }; |
151 | } |