git/builtin/diff.c, branch v2.20.2

Merge branch 'nd/the-index'

2018-10-19T04:34:02Z

Various codepaths in the core-ish part learn to work on an arbitrary in-core index structure, not necessarily the default instance "the_index". * nd/the-index: (23 commits) revision.c: reduce implicit dependency the_repository revision.c: remove implicit dependency on the_index ws.c: remove implicit dependency on the_index tree-diff.c: remove implicit dependency on the_index submodule.c: remove implicit dependency on the_index line-range.c: remove implicit dependency on the_index userdiff.c: remove implicit dependency on the_index rerere.c: remove implicit dependency on the_index sha1-file.c: remove implicit dependency on the_index patch-ids.c: remove implicit dependency on the_index merge.c: remove implicit dependency on the_index merge-blobs.c: remove implicit dependency on the_index ll-merge.c: remove implicit dependency on the_index diff-lib.c: remove implicit dependency on the_index read-cache.c: remove implicit dependency on the_index diff.c: remove implicit dependency on the_index grep.c: remove implicit dependency on the_index diff.c: remove the_index dependency in textconv() functions blame.c: rename "repo" argument to "r" combine-diff.c: remove implicit dependency on the_index ...

revision.c: remove implicit dependency on the_index

2018-09-21T16:51:19Z

Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano

diff.c: remove implicit dependency on the_index

2018-09-21T16:48:10Z

A new variant repo_diff_setup() is added that takes 'struct repository *' and diff_setup() becomes a thin macro around it that is protected by NO_THE_REPOSITORY_COMPATIBILITY_MACROS, similar to NO_THE_INDEX_.... The plan is these macros will always be defined for all library files and the macros are only accessible in builtin/ Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano

convert "oidcmp() == 0" to oideq()

2018-08-29T18:32:49Z

Using the more restrictive oideq() should, in the long run, give the compiler more opportunities to optimize these callsites. For now, this conversion should be a complete noop with respect to the generated code. The result is also perhaps a little more readable, as it avoids the "zero is equal" idiom. Since it's so prevalent in C, I think seasoned programmers tend not to even notice it anymore, but it can sometimes make for awkward double negations (e.g., we can drop a few !!oidcmp() instances here). This patch was generated almost entirely by the included coccinelle patch. This mechanical conversion should be completely safe, because we check explicitly for cases where oidcmp() is compared to 0, which is what oideq() is doing under the hood. Note that we don't have to catch "!oidcmp()" separately; coccinelle's standard isomorphisms make sure the two are treated equivalently. I say "almost" because I did hand-edit the coccinelle output to fix up a few style violations (it mostly keeps the original formatting, but sometimes unwraps long lines). Signed-off-by: Jeff King Signed-off-by: Junio C Hamano

tag: add repository argument to deref_tag

2018-06-29T17:43:39Z

Add a repository argument to allow the callers of deref_tag to be more specific about which repository to act on. This is a small mechanical change; it doesn't change the implementation to handle repositories other than the_repository yet. As with the previous commits, use a macro to catch callers passing a repository other than the_repository at compile time. Signed-off-by: Jonathan Nieder Signed-off-by: Stefan Beller Signed-off-by: Junio C Hamano

tree: add repository argument to lookup_tree

2018-06-29T17:43:38Z

Add a repository argument to allow the callers of lookup_tree to be more specific about which repository to act on. This is a small mechanical change; it doesn't change the implementation to handle repositories other than the_repository yet. As with the previous commits, use a macro to catch callers passing a repository other than the_repository at compile time. Signed-off-by: Jonathan Nieder Signed-off-by: Stefan Beller Signed-off-by: Junio C Hamano

object: add repository argument to parse_object

2018-06-29T17:43:38Z

Add a repository argument to allow the callers of parse_object to be more specific about which repository to act on. This is a small mechanical change; it doesn't change the implementation to handle repositories other than the_repository yet. As with the previous commits, use a macro to catch callers passing a repository other than the_repository at compile time. Signed-off-by: Jonathan Nieder Signed-off-by: Stefan Beller Signed-off-by: Junio C Hamano

Merge branch 'nd/diff-apply-ita'

2018-06-25T20:22:36Z

"git diff" compares the index and the working tree. For paths added with intent-to-add bit, the command shows the full contents of them as added, but the paths themselves were not marked as new files. They are now shown as new by default. "git apply" learned the "--intent-to-add" option so that an otherwise working-tree-only application of a patch will add new paths to the index marked with the "intent-to-add" bit. * nd/diff-apply-ita: apply: add --intent-to-add t2203: add a test about "diff HEAD" case diff: turn --ita-invisible-in-index on by default diff: ignore --ita-[in]visible-in-index when diffing worktree-to-tree

diff: turn --ita-invisible-in-index on by default

2018-05-29T03:38:49Z

Due to the implementation detail of intent-to-add entries, the current "git diff" (i.e. no treeish or --cached argument) would show the changes in the i-t-a file, but it does not mark the file as new, while "diff --cached" would mark the file as new while showing its content as empty. $ git diff | $ diff --cached --------------------------------|------------------------------- diff --git a/new b/new | diff --git a/new b/new index e69de29..5ad28e2 100644 | new file mode 100644 --- a/new | index 0000000..e69de29 +++ b/new | @@ -0,0 +1 @@ | +haha | One evidence of the current output being wrong is that, the output from "git diff" (with ita entries) cannot be applied because it assumes empty files exist before applying. Turning on --ita-invisible-in-index [1] [2] would fix this. The result is "new file" line moving from "git diff --cached" to "git diff". $ git diff | $ diff --cached --------------------------------|------------------------------- diff --git a/new b/new | new file mode 100644 | index 0000000..5ad28e2 | --- /dev/null | +++ b/new | @@ -0,0 +1 @@ | +haha | This option is on by default in git-status [1] but we need more fixup in rename detection code [3]. Luckily we don't need to do anything else for the rename detection code in diff.c (wt-status.c uses a customized one). [1] 425a28e0a4 (diff-lib: allow ita entries treated as "not yet exist in index" - 2016-10-24) [2] b42b451919 (diff: add --ita-[in]visible-in-index - 2016-10-24) [3] bc3dca07f4 (Merge branch 'nd/ita-wt-renames-in-status' - 2018-01-23) Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano

treewide: replace maybe_tree with accessor methods

2018-04-11T01:47:16Z

In anticipation of making trees load lazily, create a Coccinelle script (contrib/coccinelle/commit.cocci) to ensure that all references to the 'maybe_tree' member of struct commit are either mutations or accesses through get_commit_tree() or get_commit_tree_oid(). Apply the Coccinelle script to create the rest of the patch. Signed-off-by: Derrick Stolee Signed-off-by: Junio C Hamano