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1114b26e JW |
1 | #!/usr/bin/perl |
2 | # | |
3 | # Copyright 2005, Ryan Anderson <ryan@michonline.com> | |
4 | # Josef Weidendorfer <Josef.Weidendorfer@gmx.de> | |
5 | # | |
6 | # This file is licensed under the GPL v2, or a later version | |
7 | # at the discretion of Linus Torvalds. | |
8 | ||
9 | ||
10 | use warnings; | |
11 | use strict; | |
12 | use Getopt::Std; | |
13 | ||
14 | sub usage() { | |
15 | print <<EOT; | |
3ae64dff JW |
16 | $0 [-f] [-n] <source> <destination> |
17 | $0 [-f] [-n] [-k] <source> ... <destination directory> | |
1114b26e JW |
18 | EOT |
19 | exit(1); | |
20 | } | |
21 | ||
22 | # Sanity checks: | |
23 | my $GIT_DIR = $ENV{'GIT_DIR'} || ".git"; | |
24 | ||
25 | unless ( -d $GIT_DIR && -d $GIT_DIR . "/objects" && | |
26 | -d $GIT_DIR . "/objects/" && -d $GIT_DIR . "/refs") { | |
3ae64dff JW |
27 | print "Error: git repository not found."; |
28 | exit(1); | |
1114b26e JW |
29 | } |
30 | ||
31 | ||
32 | our ($opt_n, $opt_f, $opt_h, $opt_k, $opt_v); | |
33 | getopts("hnfkv") || usage; | |
34 | usage() if $opt_h; | |
35 | @ARGV >= 1 or usage; | |
36 | ||
37 | my (@srcArgs, @dstArgs, @srcs, @dsts); | |
38 | my ($src, $dst, $base, $dstDir); | |
39 | ||
40 | my $argCount = scalar @ARGV; | |
41 | if (-d $ARGV[$argCount-1]) { | |
42 | $dstDir = $ARGV[$argCount-1]; | |
f676fa76 JW |
43 | # remove any trailing slash |
44 | $dstDir =~ s/\/$//; | |
1114b26e JW |
45 | @srcArgs = @ARGV[0..$argCount-2]; |
46 | ||
47 | foreach $src (@srcArgs) { | |
48 | $base = $src; | |
49 | $base =~ s/^.*\///; | |
50 | $dst = "$dstDir/". $base; | |
51 | push @dstArgs, $dst; | |
52 | } | |
53 | } | |
54 | else { | |
55 | if ($argCount != 2) { | |
56 | print "Error: moving to directory '" | |
57 | . $ARGV[$argCount-1] | |
58 | . "' not possible; not exisiting\n"; | |
3ae64dff | 59 | exit(1); |
1114b26e JW |
60 | } |
61 | @srcArgs = ($ARGV[0]); | |
62 | @dstArgs = ($ARGV[1]); | |
63 | $dstDir = ""; | |
64 | } | |
65 | ||
66 | my (@allfiles,@srcfiles,@dstfiles); | |
67 | my $safesrc; | |
05ff5649 | 68 | my (%overwritten, %srcForDst); |
1114b26e JW |
69 | |
70 | $/ = "\0"; | |
71 | open(F,"-|","git-ls-files","-z") | |
72 | or die "Failed to open pipe from git-ls-files: " . $!; | |
73 | ||
74 | @allfiles = map { chomp; $_; } <F>; | |
75 | close(F); | |
76 | ||
77 | ||
78 | my ($i, $bad); | |
79 | while(scalar @srcArgs > 0) { | |
80 | $src = shift @srcArgs; | |
81 | $dst = shift @dstArgs; | |
82 | $bad = ""; | |
83 | ||
84 | if ($opt_v) { | |
85 | print "Checking rename of '$src' to '$dst'\n"; | |
86 | } | |
87 | ||
88 | unless (-f $src || -l $src || -d $src) { | |
89 | $bad = "bad source '$src'"; | |
90 | } | |
91 | ||
073dab13 JW |
92 | $safesrc = quotemeta($src); |
93 | @srcfiles = grep /^$safesrc(\/|$)/, @allfiles; | |
94 | ||
1114b26e JW |
95 | $overwritten{$dst} = 0; |
96 | if (($bad eq "") && -e $dst) { | |
97 | $bad = "destination '$dst' already exists"; | |
073dab13 JW |
98 | if ($opt_f) { |
99 | # only files can overwrite each other: check both source and destination | |
100 | if (-f $dst && (scalar @srcfiles == 1)) { | |
101 | print "Warning: $bad; will overwrite!\n"; | |
102 | $bad = ""; | |
103 | $overwritten{$dst} = 1; | |
104 | } | |
105 | else { | |
106 | $bad = "Can not overwrite '$src' with '$dst'"; | |
107 | } | |
1114b26e JW |
108 | } |
109 | } | |
110 | ||
ca203ee7 | 111 | if (($bad eq "") && ($dst =~ /^$src\//)) { |
1114b26e JW |
112 | $bad = "can not move directory '$src' into itself"; |
113 | } | |
114 | ||
115 | if ($bad eq "") { | |
1114b26e JW |
116 | if (scalar @srcfiles == 0) { |
117 | $bad = "'$src' not under version control"; | |
118 | } | |
119 | } | |
120 | ||
05ff5649 JW |
121 | if ($bad eq "") { |
122 | if (defined $srcForDst{$dst}) { | |
123 | $bad = "can not move '$src' to '$dst'; already target of "; | |
124 | $bad .= "'".$srcForDst{$dst}."'"; | |
125 | } | |
126 | else { | |
127 | $srcForDst{$dst} = $src; | |
128 | } | |
129 | } | |
130 | ||
1114b26e JW |
131 | if ($bad ne "") { |
132 | if ($opt_k) { | |
133 | print "Warning: $bad; skipping\n"; | |
134 | next; | |
135 | } | |
136 | print "Error: $bad\n"; | |
3ae64dff | 137 | exit(1); |
1114b26e JW |
138 | } |
139 | push @srcs, $src; | |
140 | push @dsts, $dst; | |
141 | } | |
142 | ||
143 | # Final pass: rename/move | |
144 | my (@deletedfiles,@addedfiles,@changedfiles); | |
f6bc189a | 145 | $bad = ""; |
1114b26e JW |
146 | while(scalar @srcs > 0) { |
147 | $src = shift @srcs; | |
148 | $dst = shift @dsts; | |
149 | ||
150 | if ($opt_n || $opt_v) { print "Renaming $src to $dst\n"; } | |
151 | if (!$opt_n) { | |
f6bc189a JW |
152 | if (!rename($src,$dst)) { |
153 | $bad = "renaming '$src' failed: $!"; | |
26169747 JW |
154 | if ($opt_k) { |
155 | print "Warning: skipped: $bad\n"; | |
156 | $bad = ""; | |
157 | next; | |
158 | } | |
f6bc189a JW |
159 | last; |
160 | } | |
1114b26e JW |
161 | } |
162 | ||
163 | $safesrc = quotemeta($src); | |
164 | @srcfiles = grep /^$safesrc(\/|$)/, @allfiles; | |
165 | @dstfiles = @srcfiles; | |
166 | s/^$safesrc(\/|$)/$dst$1/ for @dstfiles; | |
167 | ||
168 | push @deletedfiles, @srcfiles; | |
169 | if (scalar @srcfiles == 1) { | |
073dab13 | 170 | # $dst can be a directory with 1 file inside |
1114b26e | 171 | if ($overwritten{$dst} ==1) { |
073dab13 JW |
172 | push @changedfiles, $dstfiles[0]; |
173 | ||
1114b26e | 174 | } else { |
073dab13 | 175 | push @addedfiles, $dstfiles[0]; |
1114b26e JW |
176 | } |
177 | } | |
178 | else { | |
179 | push @addedfiles, @dstfiles; | |
180 | } | |
181 | } | |
182 | ||
183 | if ($opt_n) { | |
3ae64dff | 184 | if (@changedfiles) { |
1114b26e | 185 | print "Changed : ". join(", ", @changedfiles) ."\n"; |
3ae64dff JW |
186 | } |
187 | if (@addedfiles) { | |
1114b26e | 188 | print "Adding : ". join(", ", @addedfiles) ."\n"; |
3ae64dff JW |
189 | } |
190 | if (@deletedfiles) { | |
1114b26e | 191 | print "Deleting : ". join(", ", @deletedfiles) ."\n"; |
3ae64dff | 192 | } |
1114b26e | 193 | } |
3ae64dff JW |
194 | else { |
195 | if (@changedfiles) { | |
f359ae42 AL |
196 | open(H, "| git-update-index -z --stdin") |
197 | or die "git-update-index failed to update changed files with code $!\n"; | |
198 | foreach my $fileName (@changedfiles) { | |
199 | print H "$fileName\0"; | |
200 | } | |
201 | close(H); | |
3ae64dff JW |
202 | } |
203 | if (@addedfiles) { | |
f359ae42 AL |
204 | open(H, "| git-update-index --add -z --stdin") |
205 | or die "git-update-index failed to add new names with code $!\n"; | |
206 | foreach my $fileName (@addedfiles) { | |
207 | print H "$fileName\0"; | |
208 | } | |
209 | close(H); | |
3ae64dff JW |
210 | } |
211 | if (@deletedfiles) { | |
f359ae42 AL |
212 | open(H, "| git-update-index --remove -z --stdin") |
213 | or die "git-update-index failed to remove old names with code $!\n"; | |
214 | foreach my $fileName (@deletedfiles) { | |
215 | print H "$fileName\0"; | |
216 | } | |
217 | close(H); | |
3ae64dff | 218 | } |
1114b26e | 219 | } |
f6bc189a JW |
220 | |
221 | if ($bad ne "") { | |
222 | print "Error: $bad\n"; | |
223 | exit(1); | |
224 | } |