[pull] master from git:master

Documentation/RelNotes/2.54.0.adoc

@@ -36,6 +36,14 @@ UI, Workflows & Features
  * Extend the alias configuration syntax to allow aliases using
    characters outside ASCII alphanumeric (plus '-').
 
+ * A signature on a commit that was GPG signed long time ago ought to
+   be still valid after the key that was used to sign it has expired,
+   but we showed them in alarming red.
+
+ * "git subtree split --prefix=P <commit>" now checks the prefix P
+   against the tree of the (potentially quite different from the
+   current working tree) given commit.
+
 
 Performance, Internal Implementation, Development Support etc.
 --------------------------------------------------------------
@@ -86,6 +94,19 @@ Performance, Internal Implementation, Development Support etc.
  * Some tests assumed "iconv" is available without honoring ICONV
    prerequisite, which has been corrected.
 
+ * Revamp object enumeration API around odb.
+
+ * Additional tests were introduced to see the interaction with netrc
+   auth with auth failure on the http transport.
+
+ * A couple of bugs in use of flag bits around odb API has been
+   corrected, and the flag bits reordered.
+
+ * Plumb gitk/git-gui build and install procedure in meson based
+   builds.
+
+ * The code to accept shallow "git push" has been optimized.
+
 
 Fixes since v2.53
 -----------------
@@ -155,6 +176,9 @@ Fixes since v2.53
  * "git format-patch --from=<me>" did not honor the command line
    option when writing out the cover letter, which has been corrected.
 
+ * Update build precedure for mergetool documentation in meson-based builds.
+   (merge 58e4eeeeb5 pw/meson-doc-mergetool later to maint).
+
  * Other code cleanup, docfix, build fix, etc.
    (merge d79fff4a11 jk/remote-tracking-ref-leakfix later to maint).
    (merge 7a747f972d dd/t5403-modernise later to maint).
@@ -180,3 +204,6 @@ Fixes since v2.53
    (merge 5133837392 ps/ci-gitlab-msvc-updates later to maint).
    (merge 143e84958c db/doc-fetch-jobs-auto later to maint).
    (merge 0678e01f02 ap/use-test-seq-f-more later to maint).
+   (merge 96286f14b0 ty/symlinks-use-unsigned-for-bitset later to maint).
+   (merge b10e0cb1f3 kh/doc-am-xref later to maint).
+   (merge ed84bc1c0d kh/doc-patch-id-4 later to maint).

Documentation/config/am.adoc

@@ -1,14 +1,20 @@
 am.keepcr::
-	If true, git-am will call git-mailsplit for patches in mbox format
-	with parameter `--keep-cr`. In this case git-mailsplit will
+	If true, linkgit:git-am[1] will call linkgit:git-mailsplit[1]
+	for patches in mbox format with parameter `--keep-cr`. In this
+	case linkgit:git-mailsplit[1] will
 	not remove `\r` from lines ending with `\r\n`. Can be overridden
 	by giving `--no-keep-cr` from the command line.
-	See linkgit:git-am[1], linkgit:git-mailsplit[1].
 
 am.threeWay::
-	By default, `git am` will fail if the patch does not apply cleanly. When
-	set to true, this setting tells `git am` to fall back on 3-way merge if
-	the patch records the identity of blobs it is supposed to apply to and
-	we have those blobs available locally (equivalent to giving the `--3way`
-	option from the command line). Defaults to `false`.
-	See linkgit:git-am[1].
+	By default, linkgit:git-am[1] will fail if the patch does not
+	apply cleanly. When set to true, this setting tells
+	linkgit:git-am[1] to fall back on 3-way merge if the patch
+	records the identity of blobs it is supposed to apply to and we
+	have those blobs available locally (equivalent to giving the
+	`--3way` option from the command line). Defaults to `false`.
+
+am.messageId::
+	Add a `Message-ID` trailer based on the email header to the
+	commit when using linkgit:git-am[1] (see
+	linkgit:git-interpret-trailers[1]). See also the `--message-id`
+	and `--no-message-id` options.

Documentation/git-am.adoc

@@ -9,7 +9,7 @@ git-am - Apply a series of patches from a mailbox
 SYNOPSIS
 --------
 [verse]
-'git am' [--signoff] [--keep] [--[no-]keep-cr] [--[no-]utf8] [--no-verify]
+'git am' [--signoff] [--keep] [--[no-]keep-cr] [--[no-]utf8] [--[no-]verify]
 	 [--[no-]3way] [--interactive] [--committer-date-is-author-date]
 	 [--ignore-date] [--ignore-space-change | --ignore-whitespace]
 	 [--whitespace=<action>] [-C<n>] [-p<n>] [--directory=<dir>]
@@ -37,20 +37,21 @@ OPTIONS
 
 -s::
 --signoff::
-	Add a `Signed-off-by` trailer to the commit message, using
-	the committer identity of yourself.
-	See the signoff option in linkgit:git-commit[1] for more information.
+	Add a `Signed-off-by` trailer to the commit message (see
+	linkgit:git-interpret-trailers[1]), using the committer identity
+	of yourself.  See the signoff option in linkgit:git-commit[1]
+	for more information.
 
 -k::
 --keep::
-	Pass `-k` flag to 'git mailinfo' (see linkgit:git-mailinfo[1]).
+	Pass `-k` flag to linkgit:git-mailinfo[1].
 
 --keep-non-patch::
-	Pass `-b` flag to 'git mailinfo' (see linkgit:git-mailinfo[1]).
+	Pass `-b` flag to linkgit:git-mailinfo[1].
 
 --keep-cr::
 --no-keep-cr::
-	With `--keep-cr`, call 'git mailsplit' (see linkgit:git-mailsplit[1])
+	With `--keep-cr`, call linkgit:git-mailsplit[1]
 	with the same option, to prevent it from stripping CR at the end of
 	lines. `am.keepcr` configuration variable can be used to specify the
 	default behaviour.  `--no-keep-cr` is useful to override `am.keepcr`.
@@ -65,7 +66,7 @@ OPTIONS
 	Ignore scissors lines (see linkgit:git-mailinfo[1]).
 
 --quoted-cr=<action>::
-	This flag will be passed down to 'git mailinfo' (see linkgit:git-mailinfo[1]).
+	This flag will be passed down to linkgit:git-mailinfo[1].
 
 --empty=(drop|keep|stop)::
 	How to handle an e-mail message lacking a patch:
@@ -83,10 +84,11 @@ OPTIONS
 
 -m::
 --message-id::
-	Pass the `-m` flag to 'git mailinfo' (see linkgit:git-mailinfo[1]),
-	so that the Message-ID header is added to the commit message.
-	The `am.messageid` configuration variable can be used to specify
-	the default behaviour.
+	Pass the `-m` flag to linkgit:git-mailinfo[1], so that the
+	`Message-ID` header is added as a trailer (see
+	linkgit:git-interpret-trailers[1]).  The `am.messageid`
+	configuration variable can be used to specify the default
+	behaviour.
 
 --no-message-id::
 	Do not add the Message-ID header to the commit message.
@@ -98,7 +100,7 @@ OPTIONS
 
 -u::
 --utf8::
-	Pass `-u` flag to 'git mailinfo' (see linkgit:git-mailinfo[1]).
+	Pass `-u` flag to linkgit:git-mailinfo[1].
 	The proposed commit log message taken from the e-mail
 	is re-coded into UTF-8 encoding (configuration variable
 	`i18n.commitEncoding` can be used to specify the project's
@@ -108,8 +110,7 @@ This was optional in prior versions of git, but now it is the
 default.   You can use `--no-utf8` to override this.
 
 --no-utf8::
-	Pass `-n` flag to 'git mailinfo' (see
-	linkgit:git-mailinfo[1]).
+	Pass `-n` flag to linkgit:git-mailinfo[1].
 
 -3::
 --3way::
@@ -132,9 +133,8 @@ include::rerere-options.adoc[]
 --exclude=<path>::
 --include=<path>::
 --reject::
-	These flags are passed to the 'git apply' (see linkgit:git-apply[1])
-	program that applies
-	the patch.
+	These flags are passed to the linkgit:git-apply[1] program that
+	applies the patch.
 +
 Valid <action> for the `--whitespace` option are:
 `nowarn`, `warn`, `fix`, `error`, and `error-all`.
@@ -150,11 +150,14 @@ Valid <action> for the `--whitespace` option are:
 --interactive::
 	Run interactively.
 
+--verify::
 -n::
 --no-verify::
-	By default, the pre-applypatch and applypatch-msg hooks are run.
-	When any of `--no-verify` or `-n` is given, these are bypassed.
-	See also linkgit:githooks[5].
+	Run the `pre-applypatch` and `applypatch-msg` hooks. This is the
+	default. Skip these hooks with `-n` or `--no-verify`. See also
+	linkgit:githooks[5].
++
+Note that `post-applypatch` cannot be skipped.
 
 --committer-date-is-author-date::
 	By default the command records the date from the e-mail
@@ -205,7 +208,8 @@ applying.
 	to the screen before exiting.  This overrides the
 	standard message informing you to use `--continue`
 	or `--skip` to handle the failure.  This is solely
-	for internal use between 'git rebase' and 'git am'.
+	for internal use between linkgit:git-rebase[1] and
+	linkgit:git-am[1].
 
 --abort::
 	Restore the original branch and abort the patching operation.
@@ -223,7 +227,7 @@ applying.
 	failure again.
 
 --show-current-patch[=(diff|raw)]::
-	Show the message at which `git am` has stopped due to
+	Show the message at which linkgit:git-am[1] has stopped due to
 	conflicts.  If `raw` is specified, show the raw contents of
 	the e-mail message; if `diff`, show the diff portion only.
 	Defaults to `raw`.
@@ -259,7 +263,7 @@ include::format-patch-end-of-commit-message.adoc[]
 This means that the contents of the commit message can inadvertently
 interrupt the processing (see the <<caveats,CAVEATS>> section below).
 
-When initially invoking `git am`, you give it the names of the mailboxes
+When initially invoking linkgit:git-am[1], you give it the names of the mailboxes
 to process.  Upon seeing the first patch that does not apply, it
 aborts in the middle.  You can recover from this in one of two ways:
 
@@ -277,8 +281,8 @@ names.
 
 Before any patches are applied, ORIG_HEAD is set to the tip of the
 current branch.  This is useful if you have problems with multiple
-commits, like running 'git am' on the wrong branch or an error in the
-commits that is more easily fixed by changing the mailbox (e.g.
+commits, like running linkgit:git-am[1] on the wrong branch or an error
+in the commits that is more easily fixed by changing the mailbox (e.g.
 errors in the "From:" lines).
 
 [[caveats]]
@@ -294,6 +298,8 @@ This command can run `applypatch-msg`, `pre-applypatch`,
 and `post-applypatch` hooks.  See linkgit:githooks[5] for more
 information.
 
+See the `--verify`/`-n`/`--no-verify` options.
+
 CONFIGURATION
 -------------
 

Documentation/git-patch-id.adoc

@@ -3,7 +3,7 @@ git-patch-id(1)
 
 NAME
 ----
-git-patch-id - Compute unique ID for a patch
+git-patch-id - Compute unique IDs for patches
 
 SYNOPSIS
 --------
@@ -12,7 +12,7 @@ git patch-id [--stable | --unstable | --verbatim]
 
 DESCRIPTION
 -----------
-Read a patch from the standard input and compute the patch ID for it.
+Read patches from standard input and compute the patch IDs.
 
 A "patch ID" is nothing but a sum of SHA-1 of the file diffs associated with a
 patch, with line numbers ignored.  As such, it's "reasonably stable", but at
@@ -25,7 +25,8 @@ When dealing with `git diff-tree --patch` output, it takes advantage of
 the fact that the patch is prefixed with the object name of the
 commit, and outputs two 40-byte hexadecimal strings.  The first
 string is the patch ID, and the second string is the commit ID.
-This can be used to make a mapping from patch ID to commit ID.
+This can be used to make a mapping from patch ID to commit ID for a
+set or range of commits.
 
 OPTIONS
 -------
@@ -67,6 +68,50 @@ This is the default if `patchid.stable` is set to `true`.
 +
 This is the default.
 
+EXAMPLES
+--------
+
+linkgit:git-cherry[1] shows what commits from a branch have patch ID
+equivalent commits in some upstream branch. But it only tells you
+whether such a commit exists or not. What if you wanted to know the
+relevant commits in the upstream? We can use this command to make a
+mapping between your branch and the upstream branch:
+
+----
+#!/bin/sh
+
+upstream="$1"
+branch="$2"
+test -z "$branch" && branch=HEAD
+limit="$3"
+if test -n "$limit"
+then
+    tail_opts="$limit".."$upstream"
+else
+    since=$(git log --format=%aI "$upstream".."$branch" | tail -1)
+    tail_opts=--since="$since"' '"$upstream"
+fi
+for_branch=$(mktemp)
+for_upstream=$(mktemp)
+
+git rev-list --no-merges "$upstream".."$branch" |
+    git diff-tree --patch --stdin |
+    git patch-id  --stable | sort >"$for_branch"
+git rev-list --no-merges $tail_opts |
+    git diff-tree --patch --stdin |
+    git patch-id  --stable | sort >"$for_upstream"
+join -a1 "$for_branch" "$for_upstream" | cut -d' ' -f2,3
+rm "$for_branch"
+rm "$for_upstream"
+----
+
+Now the first column shows the commit from your branch and the second
+column shows the patch ID equivalent commit, if it exists.
+
+SEE ALSO
+--------
+linkgit:git-cherry[1]
+
 GIT
 ---
 Part of the linkgit:git[1] suite

Documentation/meson.build

@@ -354,13 +354,10 @@ foreach mode : [ 'diff', 'merge' ]
     command: [
       shell,
       '@INPUT@',
-      '..',
+      meson.project_source_root(),
       mode,
       '@OUTPUT@'
     ],
-    env: [
-      'MERGE_TOOLS_DIR=' + meson.project_source_root() / 'mergetools',
-    ],
     input: 'generate-mergetool-list.sh',
     output: 'mergetools-' + mode + '.adoc',
   )

builtin/backfill.c

@@ -67,8 +67,7 @@ static int fill_missing_blobs(const char *path UNUSED,
 		return 0;
 
 	for (size_t i = 0; i < list->nr; i++) {
-		if (!odb_has_object(ctx->repo->objects, &list->oid[i],
-				    OBJECT_INFO_FOR_PREFETCH))
+		if (!odb_has_object(ctx->repo->objects, &list->oid[i], 0))
 			oid_array_append(&ctx->current_batch, &list->oid[i]);
 	}