From: Michał Kiedrowicz Date: Wed, 11 Apr 2012 21:18:43 +0000 (+0200) Subject: gitweb: Highlight interesting parts of diff X-Git-Tag: v1.7.11-rc0~107^2~1 X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/5fb6ddf67afb3d0dc9b1fce64543f20b28a81b4b?hp=5fb6ddf67afb3d0dc9b1fce64543f20b28a81b4b gitweb: Highlight interesting parts of diff Reading diff output is sometimes very hard, even if it's colored, especially if lines differ only in few characters. This is often true when a commit fixes a typo or renames some variables or functions. This commit teaches gitweb to highlight characters that are different between old and new line with a light green/red background. This should work in the similar manner as in Trac or GitHub. The algorithm that compares lines is based on contrib/diff-highlight. Basically, it works by determining common prefix/suffix of corresponding lines and highlightning only the middle part of lines. For more information, see contrib/diff-highlight/README. Combined diffs are not supported but a following commit will change it. Since we need to pass esc_html()'ed or esc_html_hl_regions()'ed lines to format_diff_lines(), so it was taught to accept preformatted lines passed as a reference. Signed-off-by: Michał Kiedrowicz Acked-by: Jakub Narębski Signed-off-by: Junio C Hamano ---