GitLab

This is the recommanded version of the command to run, and the only one
working if git-latexdiff is not in the $PATH.

Fixes #58.

git ls-tree <hash>:<dir> requires dir to be slash-terminated, but
rejects double trailing slash. $git_prefix already has a trailing slash,
hence adding one when calling ls-tree is wrong. OTOH, when setting
manually checkoutroot, we need to set it to "./", not ".".

The Makefile may be a symlink, and we still want to use it.

686b444d (org-mode: don't try to load an init file that doesn't exist,
2020-08-11) did a good job at finding out which file to use, but then
still hardcoded ~/.emacs in the command :-(.

The "grep commit" line was failing on empty input, leading the whole
script to stop. Just ignore explicitly this error.

If the user is not using ~/.emacs as an init file, try to guess another
one, and if none is found, don't load the init file at all.

Fixes #55.

The previous code was using the same commands to check out submodules in
old/ and new/. Checking out the old structure turns out to be a bit
tricky, since we can't use "git submodule foreach" on a tree object, it
works only from a checkout. Do the submodule-listing and walking
ourselves.

Add some troubleshooting pointers to README.md.

See merge request !18

Just to have something to chose from in ctan's dropdown list, but it
doesn't add any more restrictions.

Fix tectonic support

Closes #47

See merge request !17

We need the code to work

* When the command is called from the toplevel ($git_prefix empty) or
  not

* With --whole-tree or not

* With --build-dir (relative) or not

We do need to cd to the place in new/ corresponding to where the
command was called in the original repository to allow using
"$builddir/$mainbase".pdf as a relative path, but we need to compute
$builddir properly in all cases. This patch should do this.

Compatibility with recursive submodules.

See merge request !15

add option to compile using tectonic

See merge request !14

Fixes #42.

Fix builddir when main is in a subdirectory

See merge request !13

9e5967f8 (Implement build-dir option, 2019-02-13) introduced a
--build-dir option. Unfortunately, the build directory was considered
relative to the repository root, not to the current directory. When
--whole-tree is not used and the main file was in a sub-directory, the
PDF was generated in e.g. subtree/file.pdf, and looked for in
./file.pdf.

Allow running a filter script in between latexdiff and compilation

See merge request !12

Addresses issue #24.

Fixes #2.

Commit message and indentation tweaked by: Matthieu Moy <git@matthieu-moy.fr>

--bibtex and --biber were just running bibtex and biber on the
resulting diff, but this is rarely what users want. What --bbl does is
much more sensible: it generates *.bbl files on old and new versions,
and use these *.bbl to compute the diff. No run of bibtex or biber is
needed on the diff, since the *.bbl are latexpand-ed into the *.tex
source file.

Change the meaning of --bibtex and --biber to do what --bbl used to
do. --bbl is now an alias for --bibtex, and --biber does the same as
--bbl, but using biber to generate the *.bbl file.

Old, essentially broken options are kept with different names
--run-bibtex and --run-biber, but I suspect to one is really using
them. We break backward compatibility, but the benefit of having short
and sweet option names for things that work should be higher than the
cost of backward compatibility.

There are two places in the code where bibtex/biber are run: when
compiling the diff, with --biber or --bibtex, and when preparing the
old and new, before latexpand-ing the *.bbl file. Only the first was
sensitive respecting the --biber option.