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2015-10-05use strbuf_complete to conditionally append slashLibravatar Jeff King1-4/+2
When working with paths in strbufs, we frequently want to ensure that a directory contains a trailing slash before appending to it. We can shorten this code (and make the intent more obvious) by calling strbuf_complete. Most of these cases are trivially identical conversions, but there are two things to note: - in a few cases we did not check that the strbuf is non-empty (which would lead to an out-of-bounds memory access). These were generally not triggerable in practice, either from earlier assertions, or typically because we would have just fed the strbuf to opendir(), which would choke on an empty path. - in a few cases we indexed the buffer with "original_len" or similar, rather than the current sb->len, and it is not immediately obvious from the diff that they are the same. In all of these cases, I manually verified that the strbuf does not change between the assignment and the strbuf_complete call. This does not convert cases which look like: if (sb->len && !is_dir_sep(sb->buf[sb->len - 1])) strbuf_addch(sb, '/'); as those are obviously semantically different. Some of these cases arguably should be doing that, but that is out of scope for this change, which aims purely for cleanup with no behavior change (and at least it will make such sites easier to find and examine in the future, as we can grep for strbuf_complete). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-26diff-no-index: align D/F handling with that of normal GitLibravatar Junio C Hamano1-2/+21
When a commit changes a path P that used to be a file to a directory and creates a new path P/X in it, "git show" would say that file P was removed and file P/X was created for such a commit. However, if we compare two directories, D1 and D2, where D1 has a file D1/P in it and D2 has a directory D2/P under which there is a file D2/P/X, and ask "git diff --no-index D1 D2" to show their differences, we simply get a refusal "file/directory conflict". Surely, that may be what GNU diff does, but we can do better and it is easy to do so. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-25diff-no-index: DWIM "diff D F" into "diff D/F F"Libravatar Junio C Hamano1-0/+43
"git diff --no-index" was supposed to be a poor-man's approach to allow using Git diff goodies outside of a Git repository, without having to patch mainstream diff implementations. Unlike a POSIX diff that treats "diff D F" (or "diff F D") as a request to compare D/F and F (or F and D/F) when D is a directory and F is a file, however, we did not accept such a command line and instead barfed with "file/directory conflict". Imitate what POSIX diff does and append the basename of the file after the name of the directory before comparing. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-03Merge branch 'jc/fix-diff-no-index-diff-opt-parse'Libravatar Junio C Hamano1-1/+1
"diff --no-index -Mq a b" fell into an infinite loop. * jc/fix-diff-no-index-diff-opt-parse: diff-no-index: correctly diagnose error return from diff_opt_parse()
2014-03-31diff-no-index: correctly diagnose error return from diff_opt_parse()Libravatar Junio C Hamano1-1/+1
diff_opt_parse() returns the number of options parsed, or often returns error() which is defined to return -1. Yes, return value of 0 is "I did not process that option at all", which should cause the caller to say that, but negative return should not be forgotten. This bug caused "diff --no-index" to infinitely show the same error message because the returned value was used to decrement the loop control variable, e.g. $ git diff --no-index --color=words a b error: option `color' expects "always", "auto", or "never" error: option `color' expects "always", "auto", or "never" ... Instead, make it act like so: $ git diff --no-index --color=words a b error: option `color' expects "always", "auto", or "never" fatal: invalid diff option/value: --color=words Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-25Merge branch 'bb/diff-no-index-dotdot'Libravatar Junio C Hamano1-4/+5
* bb/diff-no-index-dotdot: diff-no-index: replace manual "."/".." check with is_dot_or_dotdot() diff-no-index: rename read_directory()
2014-03-19diff-no-index: replace manual "."/".." check with is_dot_or_dotdot()Libravatar Brian Bourn1-1/+2
Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Brian Bourn <ba.bourn@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-19diff-no-index: rename read_directory()Libravatar Brian Bourn1-3/+3
In the next patch, we will replace a manual checking of "." or ".." with a call to is_dot_or_dotdot() defined in dir.h. The private function read_directory() defined in this file will conflict with the global function declared there when we do so. As a preparatory step, rename the private read_directory() to avoid the name collision. Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Brian Bourn <ba.bourn@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-07Merge branch 'jc/hold-diff-remove-q-synonym-for-no-deletion'Libravatar Junio C Hamano1-8/+0
Remove a confusing and deprecated "-q" option from "git diff-files"; "git diff-files --diff-filter=d" can be used instead.
2013-12-12diff: move no-index detection to builtin/diff.cLibravatar Thomas Gummerer1-43/+1
Currently the --no-index option is parsed in diff_no_index(). Move the detection if a no-index diff should be executed to builtin/diff.c, where we can use it for executing diff_no_index() conditionally. This will also allow us to execute other operations conditionally, which will be done in the next patch. There are no functional changes. Helped-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-17Merge branch 'dw/diff-no-index-doc'Libravatar Junio C Hamano1-1/+13
When the user types "git diff" outside a working tree, thinking he is inside one, the current error message that is a single-liner "usage: git diff --no-index <path> <path>" may not be sufficient to make him realize the mistake. Add "Not a git repository" to the error message when we fell into the "--no-index" mode without an explicit command line option to instruct us to do so. * dw/diff-no-index-doc: diff --no-index: describe in a separate paragraph diff --no-index: clarify operation when not inside a repository
2013-09-09Merge branch 'jc/diff-filter-negation'Libravatar Junio C Hamano1-2/+5
Teach "git diff --diff-filter" to express "I do not want to see these classes of changes" more directly by listing only the unwanted ones in lowercase (e.g. "--diff-filter=d" will show everything but deletion) and deprecate "diff-files -q" which did the same thing as "--diff-filter=d". * jc/diff-filter-negation: diff: deprecate -q option to diff-files diff: allow lowercase letter to specify what change class to exclude diff: reject unknown change class given to --diff-filter diff: preparse --diff-filter string argument diff: factor out match_filter() diff: pass the whole diff_options to diffcore_apply_filter()
2013-08-22diff --no-index: clarify operation when not inside a repositoryLibravatar Dale R. Worley1-1/+13
Clarify documentation for "diff --no-index". State that when not inside a repository, --no-index is implied and two arguments are mandatory. Clarify error message from diff-no-index to inform user that CWD is not inside a repository and thus two arguments are mandatory. Signed-off-by: Dale Worley <worley@ariadne.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-19diff: remove "diff-files -q" in a version of Git in a distant futureLibravatar Junio C Hamano1-8/+0
This was inherited from "show-diff -q" that was invented to tell comparison between the index and the working tree to ignore only removals in 2005. These days, it is spelled as "--diff-filter=d". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-19diff: deprecate -q option to diff-filesLibravatar Junio C Hamano1-2/+5
This reimplements the ancient "-q" option to "git diff-files" that was inherited from "show-diff -q" in terms of "--diff-filter=d". We will be deprecating the "-q" option, so let's issue a warning when we do so. Incidentally this also tentatively fixes "git diff --no-index" to honor "-q" and hide deletions; the use will get the same warning. We should remove the support for "-q" in a future version but it is not that urgent. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-08mingw: rename WIN32 cpp macro to GIT_WINDOWS_NATIVELibravatar Jonathan Nieder1-1/+1
Throughout git, it is assumed that the WIN32 preprocessor symbol is defined on native Windows setups (mingw and msvc) and not on Cygwin. On Cygwin, most of the time git can pretend this is just another Unix machine, and Windows-specific magic is generally counterproductive. Unfortunately Cygwin *does* define the WIN32 symbol in some headers. Best to rely on a new git-specific symbol GIT_WINDOWS_NATIVE instead, defined as follows: #if defined(WIN32) && !defined(__CYGWIN__) # define GIT_WINDOWS_NATIVE #endif After this change, it should be possible to drop the CYGWIN_V15_WIN32API setting without any negative effect. [rj: %s/WINDOWS_NATIVE/GIT_WINDOWS_NATIVE/g ] Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-08-27Merge branch 'jk/maint-null-in-trees'Libravatar Junio C Hamano1-1/+1
We do not want a link to 0{40} object stored anywhere in our objects. * jk/maint-null-in-trees: fsck: detect null sha1 in tree entries do not write null sha1s to on-disk index diff: do not use null sha1 as a sentinel value
2012-08-22Merge branch 'tr/void-diff-setup-done'Libravatar Junio C Hamano1-2/+1
Remove unnecessary code. * tr/void-diff-setup-done: diff_setup_done(): return void
2012-08-03diff_setup_done(): return voidLibravatar Thomas Rast1-2/+1
diff_setup_done() has historically returned an error code, but lost the last nonzero return in 943d5b7 (allow diff.renamelimit to be set regardless of -M/-C, 2006-08-09). The callers were in a pretty confused state: some actually checked for the return code, and some did not. Let it return void, and patch all callers to take this into account. This conveniently also gets rid of a handful of different(!) error messages that could never be triggered anyway. Note that the function can still die(). Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-29diff: do not use null sha1 as a sentinel valueLibravatar Jeff King1-2/+2
The diff code represents paths using the diff_filespec struct. This struct has a sha1 to represent the sha1 of the content at that path, as well as a sha1_valid member which indicates whether its sha1 field is actually useful. If sha1_valid is not true, then the filespec represents a working tree file (e.g., for the no-index case, or for when the index is not up-to-date). The diff_filespec is only used internally, though. At the interfaces to the diff subsystem, callers feed the sha1 directly, and we create a diff_filespec from it. It's at that point that we look at the sha1 and decide whether it is valid or not; callers may pass the null sha1 as a sentinel value to indicate that it is not. We should not typically see the null sha1 coming from any other source (e.g., in the index itself, or from a tree). However, a corrupt tree might have a null sha1, which would cause "diff --patch" to accidentally diff the working tree version of a file instead of treating it as a blob. This patch extends the edges of the diff interface to accept a "sha1_valid" flag whenever we accept a sha1, and to use that flag when creating a filespec. In some cases, this means passing the flag through several layers, making the code change larger than would be desirable. One alternative would be to simply die() upon seeing corrupted trees with null sha1s. However, this fix more directly addresses the problem (while bogus sha1s in a tree are probably a bad thing, it is really the sentinel confusion sending us down the wrong code path that is what makes it devastating). And it means that git is more capable of examining and debugging these corrupted trees. For example, you can still "diff --raw" such a tree to find out when the bogus entry was introduced; you just cannot do a "--patch" diff (just as you could not with any other corrupted tree, as we do not have any content to diff). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-13Merge branch 'jc/refactor-diff-stdin'Libravatar Junio C Hamano1-30/+53
Due to the way "git diff --no-index" is bolted onto by touching the low level code that is shared with the rest of the "git diff" code, even though it has to work in a very different way, any comparison that involves a file "-" at the root level incorrectly tried to read from the standard input. This cleans up the no-index codepath further to remove code that reads from the standard input from the core side, which is never necessary when git is running its usual diff operation. * jc/refactor-diff-stdin: diff-index.c: "git diff" has no need to read blob from the standard input diff-index.c: unify handling of command line paths diff-index.c: do not pretend paths are pathspecs
2012-07-04Merge branch 'th/diff-no-index-fixes'Libravatar Junio C Hamano1-20/+3
"git diff --no-index" did not correctly handle relative paths and did not give correct exit codes when run under "--quiet" option. * th/diff-no-index-fixes: diff-no-index: exit(1) if 'diff --quiet <repo file> <external file>' finds changes diff: handle relative paths in no-index
2012-06-28diff-index.c: "git diff" has no need to read blob from the standard inputLibravatar Junio C Hamano1-11/+41
Only "diff --no-index -" does. Bolting the logic into the low-level function diff_populate_filespec() was a layering violation from day one. Move populate_from_stdin() function out of the generic diff.c to its only user, diff-index.c. Also make sure "-" from the command line stays a special token "read from the standard input", even if we later decide to sanitize the result from prefix_filename() function in a few obvious ways, e.g. removing unnecessary "./" prefix, duplicated slashes "//" in the middle, etc. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-28diff-index.c: unify handling of command line pathsLibravatar Junio C Hamano1-16/+11
Regardless of where in the directory hierarchy you are, "-" on the command line means the standard input. The old code knew too much about how the low level machinery uses paths to read from the working tree and did not bother to have the same check for "-" when the command is run from the top-level. Unify the codepaths for subdirectory case and toplevel case into one and make it clearer. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-28diff-index.c: do not pretend paths are pathspecsLibravatar Junio C Hamano1-7/+5
"git diff --no-index" takes exactly two paths, not pathspecs, and has its own way queue_diff() to populate the diff_queue. Do not call diff_tree_setup_paths(), pretending as it takes pathspecs. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-22diff-no-index: exit(1) if 'diff --quiet <repo file> <external file>' finds ↵Libravatar Tim Henigan1-1/+1
changes When running 'git diff --quiet <file1> <file2>', if file1 or file2 is outside the repository, it will exit(0) even if the files differ. It should exit(1) when they differ. This happens because 'diff_no_index' looks at the 'found_changes' member from 'diff_options' to determine if changes were made. This is the wrong thing to do, since it is only set if xdiff is actually run and it finds a change (the diff machinery will optimize out the xdiff call when it is not necessary) and in that case HAS_CHANGED flag needs to be taken into account. Use diff_result_code() that knows all these details for the correct exit value instead. Signed-off-by: Tim Henigan <tim.henigan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-22diff: handle relative paths in no-indexLibravatar Jeff King1-19/+2
When diff-no-index is given a relative path to a file outside the repository, it aborts with error. However, if the file is given using an absolute path, the diff runs as expected. The two cases should be treated the same. Tests and commit message by Tim Henigan. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Tim Henigan <tim.henigan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-15do not run pager with diff --no-index --quietLibravatar Jeff King1-3/+3
There is no point in running a pager when --quiet is given, since we are producing no output. The regular diff code path handles this already, because --quiet implies --exit-code, and we check for --exit-code when deciding not to run the pager. However, the "quiet implies exit-code" logic is done in diff_setup_done, and the no-index code path sets up its pager before running diff_setup_done, and misses this case. We can fix this by reordering our initialization. Currently we do: 1. read command line arguments into diff_options 2. Set pager if EXIT_CODE not requested 3. always set EXIT_CODE, since we are emulating traditional diff 4. call diff_setup_done We can fix the problem by moving pager initialization (step 2) after step 4. But step 3 must come after step 2 (since we want to know whether the _user_ requested --exit-code, not whether we turned it on unconditionally). So we must move both. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-15fix pager.diff with diff --no-indexLibravatar Jeff King1-6/+1
git-diff does not rely on the git wrapper to setup its pager; instead, it sets it up on its own after seeing whether --quiet or --exit-code has been specified. After diff_no_index was split off from cmd_diff, commit b3fde6c (git diff --no-index: default to page like other diff frontends, 2008-05-26) duplicated the one-liner from cmd_diff to turn on the pager. Later, commit 8f0359f (Allow pager of diff command be enabled/disabled, 2008-07-21) taught the the version in cmd_diff to respect the pager.diff config, but the version in diff_no_index was left behind. This meant that git -c pager.diff=0 diff a b would not use a pager, but git -c pager.diff=0 diff --no-index a b would. Let's fix it by factoring out a common function. While we're there, let's update the antiquated comment, which claims that the pager interferes with propagating the exit code; this has not been the case since ea27a18 (spawn pager via run_command interface, 2008-07-22). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-16diff --no-index: don't leak buffers in queue_diffLibravatar Bobby Powers1-2/+2
queue_diff uses two strbufs, and at the end of the function strbuf_reset was called. This only reset the length of the buffer - any allocated memory was leaked. Using strbuf_release fixes this. Signed-off-by: Bobby Powers <bobbypowers@gmail.com> Reviewed-by: René Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-05-16diff --no-index: reset temporary buffer lengths on directory iterationLibravatar Bobby Powers1-0/+6
Commit 875b91b (diff --no-index: use strbuf for temporary pathnames, 2012-04-25) introduced a regression when using diff --no-index with directories. When iterating through a directory, the switch to strbuf from heap-allocated char arrays caused paths to form like 'dir/file1', 'dir/file1file2', rather than 'dir/file1', 'dir/file2' as expected. Avoid this by resetting the paths variables to their original length before each iteration. Signed-off-by: Bobby Powers <bobbypowers@gmail.com> Reviewed-by: René Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-26diff --no-index: use strbuf for temporary pathnamesLibravatar Junio C Hamano1-23/+17
Instead of using limited-length buffers and risking of pathname truncation, we should be taking advantage of strbuf API nowadays. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-16diff: avoid stack-buffer-read-overrun for very long nameLibravatar Jim Meyering1-0/+2
Due to the use of strncpy without explicit NUL termination, we could end up passing names n1 or n2 that are not NUL-terminated to queue_diff, which requires NUL-terminated strings. Ensure that each is NUL terminated. Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-03Convert struct diff_options to use struct pathspecLibravatar Nguyễn Thái Ngọc Duy1-2/+2
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-03diff-no-index: use diff_tree_setup_paths()Libravatar Nguyễn Thái Ngọc Duy1-4/+5
diff_options.{paths,nr_paths} will be removed later. Do not modify them directly. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-05string_list: Add STRING_LIST_INIT macro and make use of it.Libravatar Thiago Farina1-1/+2
Acked-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Thiago Farina <tfransosi@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-27string_list: Fix argument order for string_list_insertLibravatar Julian Phillips1-1/+1
Update the definition and callers of string_list_insert to use the string_list as the first argument. This helps make the string_list API easier to use by being more consistent. Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-05-25test get_git_work_tree() return value for NULLLibravatar Clemens Buchacher1-4/+2
If we are in a git directory, get_git_work_tree() can return NULL. While trying to determine whether or not the given paths are outside the work tree, the following command would read from it anyways and trigger a segmentation fault. git diff / / Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-10diff --no-index: make the usage string less scaryLibravatar Jonathan Nieder1-2/+2
Start the diff --no-index usage string with "usage:" instead of "fatal:". Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-01Fix a bunch of pointer declarations (codestyle)Libravatar Felipe Contreras1-1/+1
Essentially; s/type* /type */ as per the coding guidelines. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-28Merge branch 'maint'Libravatar Junio C Hamano1-2/+2
* maint: test-lib: Clean up comments and Makefile. diff --no-index: Do not generate patch output if other output is requested
2009-03-28Merge branch 'maint-1.6.1' into maintLibravatar Junio C Hamano1-2/+2
* maint-1.6.1: test-lib: Clean up comments and Makefile. diff --no-index: Do not generate patch output if other output is requested
2009-03-25diff --no-index: Do not generate patch output if other output is requestedLibravatar Johannes Sixt1-2/+2
Previously, 'git diff --no-index --stat a b' generated patch output in addition to the --stat output (or whatever other output format was requested). Now only the requested output is generated, and patch output remains the default. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-07MinGW: fix diff --no-index /dev/null ...Libravatar Johannes Schindelin1-0/+4
When launching "diff --no-index" with a parameter "/dev/null", the MSys bash converts the "/dev/null" to a "nul", which usually makes sense. But Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-18Merge branch 'maint'Libravatar Junio C Hamano1-0/+1
* maint: tests: fix "export var=val" Skip timestamp differences for diff --no-index Documentation/git-push: --all, --mirror, --tags can not be combined
2009-02-18Skip timestamp differences for diff --no-indexLibravatar Michael Spang1-0/+1
We display empty diffs for files whose timestamps have changed. Usually, refreshing the index makes those empty diffs go away. However, when not using the index they are not very useful and there is no option to suppress them. This forces on the skip_stat_unmatch option for diff --no-index, suppressing any empty diffs. This option is also used for diffs against the index when "diff.autorefreshindex" is set, but that option does not apply to diff --no-index. Signed-off-by: Michael Spang <mspang@uwaterloo.ca> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-30Fix 'git diff --no-index' with a non-existing symlink targetLibravatar Johannes Schindelin1-1/+1
When trying to find out mode changes, we should not access the symlink targets using stat(); instead we use lstat() so that the diff does not fail trying to find a non-existing symlink target. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-07diff --no-index -q: fix endless loopLibravatar Thomas Rast1-1/+3
We forgot to move to the next argument when parsing -q, getting stuck in an endless loop. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-06diff --no-index: test for pager after option parsingLibravatar Thomas Rast1-7/+7
We need to parse options before we can see if --exit-code was provided. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-06diff: accept -- when using --no-indexLibravatar Thomas Rast1-3/+7
Accept -- as an "end of options" marker even when using --no-index. Previously, the -- triggered a "normal" index/tree diff and subsequently failed because of the unrecognized (in that mode) --no-index. Note that the second loop can treat '--' as a normal option, because the preceding checks ensure it is the third-to-last argument. While at it, fix the parsing of "-q" option in --no-index mode as well. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>