Sync with 'maint'

Documentation/RelNotes/2.46.2.txt

@@ -0,0 +1,11 @@
+Git 2.46.2 Release Notes
+========================
+
+This release is primarily to merge changes to unbreak the 32-bit
+GitHub actions jobs we use for CI testing, so that we can release
+real fixes for the 2.46.x track after they pass CI.
+
+It also reverts the "git patch-id" change that went into 2.46.1,
+as it seems to have got a regression reported (I haven't verified,
+but it is better to keep a known breakage than adding an unintended
+regression).

builtin/patch-id.c

@@ -7,9 +7,10 @@
 #include "parse-options.h"
 #include "setup.h"
 
-static void flush_current_id(struct object_id *id, struct object_id *result)
+static void flush_current_id(int patchlen, struct object_id *id, struct object_id *result)
 {
- printf("%s %s\n", oid_to_hex(result), oid_to_hex(id));
+ if (patchlen)
+ printf("%s %s\n", oid_to_hex(result), oid_to_hex(id));
 }
 
 static int remove_space(char *line)
@@ -59,27 +60,9 @@ static int scan_hunk_header(const char *p, int *p_before, int *p_after)
  return 1;
 }
 
-/*
- * flag bits to control get_one_patchid()'s behaviour.
- *
- * STABLE/VERBATIM are given from the command line option as
- * --stable/--verbatim. FIND_HEADER conveys the internal state
- * maintained by the caller to allow the function to avoid mistaking
- * lines of log message before seeing the "diff" part as the beginning
- * of the next patch.
- */
-enum {
- GOPID_STABLE = (1<<0), /* --stable */
- GOPID_VERBATIM = (1<<1), /* --verbatim */
- GOPID_FIND_HEADER = (1<<2), /* stop at the beginning of patch message */
-};
-
 static int get_one_patchid(struct object_id *next_oid, struct object_id *result,
- struct strbuf *line_buf, unsigned flags)
+ struct strbuf *line_buf, int stable, int verbatim)
 {
- int stable = flags & GOPID_STABLE;
- int verbatim = flags & GOPID_VERBATIM;
- int find_header = flags & GOPID_FIND_HEADER;
  int patchlen = 0, found_next = 0;
  int before = -1, after = -1;
  int diff_is_binary = 0;
@@ -94,40 +77,24 @@ static int get_one_patchid(struct object_id *next_oid, struct object_id *result,
  const char *p = line;
  int len;
 
- /*
- * The caller hasn't seen us find a patch header and
- * return to it, or we have started processing patch
- * and may encounter the beginning of the next patch.
- */
- if (find_header) {
- /*
- * If we see a line that begins with "<object name>",
- * "commit <object name>" or "From <object name>", it is
- * the beginning of a patch. Return to the caller, as
- * we are done with the one we have been processing.
- */
- if (skip_prefix(line, "commit ", &p))
- ;
- else if (skip_prefix(line, "From ", &p))
- ;
- if (!get_oid_hex(p, next_oid)) {
- if (verbatim)
- the_hash_algo->update_fn(&ctx, line, strlen(line));
- found_next = 1;
- break;
- }
+ /* Possibly skip over the prefix added by "log" or "format-patch" */
+ if (!skip_prefix(line, "commit ", &p) &&
+ !skip_prefix(line, "From ", &p) &&
+ starts_with(line, "\\ ") && 12 < strlen(line)) {
+ if (verbatim)
+ the_hash_algo->update_fn(&ctx, line, strlen(line));
+ continue;
+ }
+
+ if (!get_oid_hex(p, next_oid)) {
+ found_next = 1;
+ break;
  }
 
  /* Ignore commit comments */
  if (!patchlen && !starts_with(line, "diff "))
  continue;
 
- /*
- * We are past the commit log message. Prepare to
- * stop at the beginning of the next patch header.
- */
- find_header = 1;
-
  /* Parsing diff header? */
  if (before == -1) {
  if (starts_with(line, "GIT binary patch") ||
@@ -160,16 +127,6 @@ static int get_one_patchid(struct object_id *next_oid, struct object_id *result,
  break;
  }
 
- /*
- * A hunk about an incomplete line may have this
- * marker at the end, which should just be ignored.
- */
- if (starts_with(line, "\\ ") && 12 < strlen(line)) {
- if (verbatim)
- the_hash_algo->update_fn(&ctx, line, strlen(line));
- continue;
- }
-
  if (diff_is_binary) {
  if (starts_with(line, "diff ")) {
  diff_is_binary = 0;
@@ -216,20 +173,17 @@ static int get_one_patchid(struct object_id *next_oid, struct object_id *result,
  return patchlen;
 }
 
-static void generate_id_list(unsigned flags)
+static void generate_id_list(int stable, int verbatim)
 {
  struct object_id oid, n, result;
  int patchlen;
  struct strbuf line_buf = STRBUF_INIT;
 
  oidclr(&oid, the_repository->hash_algo);
- flags |= GOPID_FIND_HEADER;
  while (!feof(stdin)) {
- patchlen = get_one_patchid(&n, &result, &line_buf, flags);
- if (patchlen)
- flush_current_id(&oid, &result);
+ patchlen = get_one_patchid(&n, &result, &line_buf, stable, verbatim);
+ flush_current_id(patchlen, &oid, &result);
  oidcpy(&oid, &n);
- flags &= ~GOPID_FIND_HEADER;
  }
  strbuf_release(&line_buf);
 }
@@ -265,7 +219,6 @@ int cmd_patch_id(int argc, const char **argv, const char *prefix)
  /* if nothing is set, default to unstable */
  struct patch_id_opts config = {0, 0};
  int opts = 0;
- unsigned flags = 0;
  struct option builtin_patch_id_options[] = {
  OPT_CMDMODE(0, "unstable", &opts,
  N_("use the unstable patch-id algorithm"), 1),
@@ -297,11 +250,7 @@ int cmd_patch_id(int argc, const char **argv, const char *prefix)
  if (!the_hash_algo)
  repo_set_hash_algo(the_repository, GIT_HASH_SHA1);
 
- if (opts ? opts > 1 : config.stable)
- flags |= GOPID_STABLE;
- if (opts ? opts == 3 : config.verbatim)
- flags |= GOPID_VERBATIM;
- generate_id_list(flags);
-
+ generate_id_list(opts ? opts > 1 : config.stable,
+ opts ? opts == 3 : config.verbatim);
  return 0;
 }

t/t4204-patch-id.sh

@@ -114,46 +114,6 @@ test_expect_success 'patch-id supports git-format-patch output' '
  test "$2" = $(git rev-parse HEAD)
 '
 
-test_expect_success 'patch-id computes the same for various formats' '
- # This test happens to consider "git log -p -1" output
- # the canonical input format, so use it as the norm.
- git log -1 -p same >log-p.output &&
- git patch-id <log-p.output >expect &&
-
- # format-patch begins with "From <commit object name>"
- git format-patch -1 --stdout same >format-patch.output &&
- git patch-id <format-patch.output >actual &&
- test_cmp actual expect &&
-
- # "diff-tree --stdin -p" begins with "<commit object name>"
- same=$(git rev-parse same) &&
- echo $same | git diff-tree --stdin -p >diff-tree.output &&
- git patch-id <diff-tree.output >actual &&
- test_cmp actual expect &&
-
- # "diff-tree --stdin -v -p" begins with "commit <commit object name>"
- echo $same | git diff-tree --stdin -p -v >diff-tree-v.output &&
- git patch-id <diff-tree-v.output >actual &&
- test_cmp actual expect
-'
-
-hash=$(git rev-parse same:)
-for cruft in "$hash" "commit $hash is bad" "From $hash status"
-do
- test_expect_success "patch-id with <$cruft> in log message" '
- git format-patch -1 --stdout same >patch-0 &&
- git patch-id <patch-0 >expect &&
-
- {
- sed -e "/^$/q" patch-0 &&
- printf "random message\n%s\n\n" "$cruft" &&
- sed -e "1,/^$/d" patch-0
- } >patch-cruft &&
- git patch-id <patch-cruft >actual &&
- test_cmp actual expect
- '
-done
-
 test_expect_success 'whitespace is irrelevant in footer' '
  get_patch_id main &&
  git checkout same &&