view templates/template-vars.txt @ 827:a61728b58dc0

Fix array overflow bug in bdiff I ran into a bug while importing a large repository into mercurial. The diff algorithm does not allocate a big enough array of hunks for some test cases. This results in memory corruption, and possibly, as in my case, a seg fault. You should be able to reproduce this problem with any case of more than a few lines that follows this pattern: a b = = 1 1 2 2 3 4 3 5 . 4 . . 5 . . . I.e., "a" has blank lines on every other line that have been removed in "b". In this case, the number of matching hunks is equal to the number of lines in "b". This is more than ((an + bn)/4 + 2). I'm not sure what motivates this formula, but when I changed it to the smaller of an or bn (+ 1), it works. [comment added by mpm]
author "Wallace, Eric S" <eric.s.wallace@intel.com>
date Thu, 04 Aug 2005 13:25:59 -0800
parents f8d44a2e6928
children ba625c8083d8
line wrap: on
line source

repo          the name of the repo
rev           a changeset.manifest revision
node          a changeset node
changesets    total number of changesets
file          a filename
filenode      a file node
filerev       a file revision
filerevs      total number of file revisions
up            the directory of the relevant file
path          a path in the manifest, starting with "/"
basename      a short pathname
manifest      a manifest node
manifestrev   a manifest revision
date          a date string
age           age in hours, days, etc
line          a line of text (escaped)
desc          a description (escaped, with breaks)
shortdesc         a short description (escaped)
author        a name or email addressv(obfuscated)
parent        a list of the parent
tags          a list of tag

header        the global page header
footer        the global page footer

files         a list of file links
dirs          a set of directory links
diff          a diff of one or more files
annotate      an annotated file
entries       the entries relevant to the page

Templates and commands:
  changelog(rev) - a page for browsing changesets
    naventry - a link for jumping to a changeset number
    filenodelink - jump to file diff
    fileellipses - printed after maxfiles
    changelogentry - an entry in the log
  manifest - browse a manifest as a directory tree