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gitweb: parse parent..current syntax from PATH_INFO

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This patch makes it possible to use an URL such as
project/action/somebranch..otherbranch:/filename to get a diff between
different version of a file. Paths like
project/action/somebranch:/somefile..otherbranch:/otherfile are parsed
as well.

All '*diff' actions and in general actions that use $hash_parent[_base]
and $file_parent (e.g. 'shortlog') can now get all of their parameters
from PATH_INFO

Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Acked-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Giuseppe Bilotta 2008-10-21 21:34:53 +02:00 committed by Junio C Hamano
parent 3550ea71f5
commit b0be3838bb
1 changed files with 34 additions and 2 deletions
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34
gitweb/gitweb.perl
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@ -549,7 +549,12 @@ sub evaluate_path_info {
'history',
);
my ($refname, $pathname) = split(/:/, $path_info, 2);
# we want to catch
# [$hash_parent_base[:$file_parent]..]$hash_parent[:$file_name]
my ($parentrefname, $parentpathname, $refname, $pathname) =
($path_info =~ /^(?:(.+?)(?::(.+))?\.\.)?(.+?)(?::(.+))?$/);
# first, analyze the 'current' part
if (defined $pathname) {
# we got "branch:filename" or "branch:dir/"
# we could use git_get_type(branch:pathname), but:
@ -563,9 +568,15 @@ sub evaluate_path_info {
if (!$pathname || substr($pathname, -1) eq "/") {
$input_params{'action'} ||= "tree";
$pathname =~ s,/$,,;
} else {
# the default action depends on whether we had parent info
# or not
if ($parentrefname) {
$input_params{'action'} ||= "blobdiff_plain";
} else {
$input_params{'action'} ||= "blob_plain";
}
}
$input_params{'hash_base'} ||= $refname;
$input_params{'file_name'} ||= $pathname;
} elsif (defined $refname) {
@ -584,6 +595,27 @@ sub evaluate_path_info {
$input_params{'hash'} ||= $refname;
}
}
# next, handle the 'parent' part, if present
if (defined $parentrefname) {
# a missing pathspec defaults to the 'current' filename, allowing e.g.
# someproject/blobdiff/oldrev..newrev:/filename
if ($parentpathname) {
$parentpathname =~ s,^/+,,;
$parentpathname =~ s,/$,,;
$input_params{'file_parent'} ||= $parentpathname;
} else {
$input_params{'file_parent'} ||= $input_params{'file_name'};
}
# we assume that hash_parent_base is wanted if a path was specified,
# or if the action wants hash_base instead of hash
if (defined $input_params{'file_parent'} ||
grep { $_ eq $input_params{'action'} } @wants_base) {
$input_params{'hash_parent_base'} ||= $parentrefname;
} else {
$input_params{'hash_parent'} ||= $parentrefname;
}
}
}
evaluate_path_info();