tests/: Do not use `sed -i`

"-i" isn't part of the POSIX standard and doesn't work on several
platforms such as OpenBSD. Use a temporary file instead.

Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
t0107: Skip ZIP tests if unzip(1) isn't available

Note that we cannot use skip_all here since some tests have already been
executed when ZIP tests are reached. Use test prerequisites to skip
everything using unzip(1) if the binary is not available instead.

Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
ui-snapshot.c: Prepend "V" when guessing ref names

In cgit_print_snapshot_links() we strip leading "v" and "V", while we
currently only prepend a lower case "v" when parsing a snapshot file
name. This results in broken snapshot links for tags that start with an
upper case "V". Avoid this by prepending a "V" as a fallback.

Signed-off-by: Lukas Fleischer <cgit@cryptocrack.de>
cgitrc.5.txt: Specify when scan-path must be defined before.

Several options must be specified prior to scan-path. This is consistant
source of user confusion. Document these facts.

Suggested-by: Lukas Fleischer <cgit@cryptocrack.de>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
t0109: test more URLs

In order to ensure that we don't access $HOME at some point after
initial startup when rendering a specific view, run the strace test on a
range of different pages.

This ensures that we don't end up reading a configuration later for some
specific view.

Signed-off-by: John Keeping <john@keeping.me.uk>
tests: set TEST_OUTPUT_DIRECTORY to the CGit test directory

By default, Git's test suite puts the trash directories and test-results
directory into its own directory, not that containing the tests being
run.  This is less convenient for inspecting test failures, so set the
output directory to CGit's tests/ directory instead.

Note that there is currently a bug in Git whereby it will create the
trash directories in our tests/ directory regardless of the value of
TEST_OUTPUT_DIRECTORY, and then fail to remove them once the tests are
done.  This change does currently affect the location of the
test-results/ directory though.

Signed-off-by: John Keeping <john@keeping.me.uk>
t0001: ignore ".dirty" suffix on Git version

When testing modifications in Git that affect CGit, it is annoying to
have t0001 failing simply because the Git version has a ".dirty" suffix
when the version of Git there does indeed match that specified in the
CGit makefile.  Stop this by stripping the ".dirty" suffix from the
GIT_VERSION variable.

Note that this brings the "Git version" behaviour in line with the
"submodule version" case which does not check if the working tree in
git/ is modified.

Signed-off-by: John Keeping <john@keeping.me.uk>
scan-tree: fix regression in section-from-path=-1

Commit fb3655d (use struct strbuf instead of static buffers -
2013-04-06) introduced a regression in the "section-from-path" handling
when the configured value is negative.  By changing the "rel" variable
so that it includes a trailing slash, counting slashes from the end of
the string no longer gives the same answer as it did before.

Fix this by ensuring that "rel" does not have a trailing slash.

Reported-by: Julius Plenz <plenz@cis.fu-berlin.de>
Signed-off-by: John Keeping <john@keeping.me.uk>