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Merge branch 'jh/notes' (early part)

* 'jh/notes' (early part):
  Add selftests verifying concatenation of multiple notes for the same commit
  Refactor notes code to concatenate multiple notes annotating the same object
  Add selftests verifying that we can parse notes trees with various fanouts
  Teach the notes lookup code to parse notes trees with various fanout schemes
  Teach notes code to free its internal data structures on request
  Add '%N'-format for pretty-printing commit notes
  Add flags to get_commit_notes() to control the format of the note string
  t3302-notes-index-expensive: Speed up create_repo()
  fast-import: Add support for importing commit notes
  Teach "-m <msg>" and "-F <file>" to "git notes edit"
  Add an expensive test for git-notes
  Speed up git notes lookup
  Add a script to edit/inspect notes
  Introduce commit notes

Conflicts:
	.gitignore
	Documentation/pretty-formats.txt
	pretty.c
This commit is contained in:
Junio C Hamano 2009-11-20 23:53:55 -08:00
commit 885d492f69
20 changed files with 1408 additions and 10 deletions

1
.gitignore vendored
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@ -87,6 +87,7 @@
/git-mktree
/git-name-rev
/git-mv
/git-notes
/git-pack-redundant
/git-pack-objects
/git-pack-refs

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@ -456,6 +456,19 @@ On some file system/operating system combinations, this is unreliable.
Set this config setting to 'rename' there; However, This will remove the
check that makes sure that existing object files will not get overwritten.
core.notesRef::
When showing commit messages, also show notes which are stored in
the given ref. This ref is expected to contain files named
after the full SHA-1 of the commit they annotate.
+
If such a file exists in the given ref, the referenced blob is read, and
appended to the commit message, separated by a "Notes:" line. If the
given ref itself does not exist, it is not an error, but means that no
notes should be printed.
+
This setting defaults to "refs/notes/commits", and can be overridden by
the `GIT_NOTES_REF` environment variable.
add.ignore-errors::
Tells 'git-add' to continue adding files when some files cannot be
added due to indexing errors. Equivalent to the '--ignore-errors'

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@ -316,7 +316,7 @@ change to the project.
data
('from' SP <committish> LF)?
('merge' SP <committish> LF)?
(filemodify | filedelete | filecopy | filerename | filedeleteall)*
(filemodify | filedelete | filecopy | filerename | filedeleteall | notemodify)*
LF?
....
@ -339,14 +339,13 @@ commit message use a 0 length data. Commit messages are free-form
and are not interpreted by Git. Currently they must be encoded in
UTF-8, as fast-import does not permit other encodings to be specified.
Zero or more `filemodify`, `filedelete`, `filecopy`, `filerename`
and `filedeleteall` commands
Zero or more `filemodify`, `filedelete`, `filecopy`, `filerename`,
`filedeleteall` and `notemodify` commands
may be included to update the contents of the branch prior to
creating the commit. These commands may be supplied in any order.
However it is recommended that a `filedeleteall` command precede
all `filemodify`, `filecopy` and `filerename` commands in the same
commit, as `filedeleteall`
wipes the branch clean (see below).
all `filemodify`, `filecopy`, `filerename` and `notemodify` commands in
the same commit, as `filedeleteall` wipes the branch clean (see below).
The `LF` after the command is optional (it used to be required).
@ -595,6 +594,40 @@ more memory per active branch (less than 1 MiB for even most large
projects); so frontends that can easily obtain only the affected
paths for a commit are encouraged to do so.
`notemodify`
^^^^^^^^^^^^
Included in a `commit` command to add a new note (annotating a given
commit) or change the content of an existing note. This command has
two different means of specifying the content of the note.
External data format::
The data content for the note was already supplied by a prior
`blob` command. The frontend just needs to connect it to the
commit that is to be annotated.
+
....
'N' SP <dataref> SP <committish> LF
....
+
Here `<dataref>` can be either a mark reference (`:<idnum>`)
set by a prior `blob` command, or a full 40-byte SHA-1 of an
existing Git blob object.
Inline data format::
The data content for the note has not been supplied yet.
The frontend wants to supply it as part of this modify
command.
+
....
'N' SP 'inline' SP <committish> LF
data
....
+
See below for a detailed description of the `data` command.
In both formats `<committish>` is any of the commit specification
expressions also accepted by `from` (see above).
`mark`
~~~~~~
Arranges for fast-import to save a reference to the current object, allowing

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@ -0,0 +1,60 @@
git-notes(1)
============
NAME
----
git-notes - Add/inspect commit notes
SYNOPSIS
--------
[verse]
'git-notes' (edit [-F <file> | -m <msg>] | show) [commit]
DESCRIPTION
-----------
This command allows you to add notes to commit messages, without
changing the commit. To discern these notes from the message stored
in the commit object, the notes are indented like the message, after
an unindented line saying "Notes:".
To disable commit notes, you have to set the config variable
core.notesRef to the empty string. Alternatively, you can set it
to a different ref, something like "refs/notes/bugzilla". This setting
can be overridden by the environment variable "GIT_NOTES_REF".
SUBCOMMANDS
-----------
edit::
Edit the notes for a given commit (defaults to HEAD).
show::
Show the notes for a given commit (defaults to HEAD).
OPTIONS
-------
-m <msg>::
Use the given note message (instead of prompting).
If multiple `-m` (or `-F`) options are given, their
values are concatenated as separate paragraphs.
-F <file>::
Take the note message from the given file. Use '-' to
read the note message from the standard input.
If multiple `-F` (or `-m`) options are given, their
values are concatenated as separate paragraphs.
Author
------
Written by Johannes Schindelin <johannes.schindelin@gmx.de>
Documentation
-------------
Documentation by Johannes Schindelin
GIT
---
Part of the linkgit:git[7] suite

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@ -123,6 +123,7 @@ The placeholders are:
- '%s': subject
- '%f': sanitized subject line, suitable for a filename
- '%b': body
- '%N': commit notes
- '%gD': reflog selector, e.g., `refs/stash@\{1\}`
- '%gd': shortened reflog selector, e.g., `stash@\{1\}`
- '%gs': reflog subject

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@ -343,6 +343,7 @@ SCRIPT_SH += git-merge-one-file.sh
SCRIPT_SH += git-merge-resolve.sh
SCRIPT_SH += git-mergetool.sh
SCRIPT_SH += git-mergetool--lib.sh
SCRIPT_SH += git-notes.sh
SCRIPT_SH += git-parse-remote.sh
SCRIPT_SH += git-pull.sh
SCRIPT_SH += git-quiltimport.sh
@ -457,6 +458,7 @@ LIB_H += ll-merge.h
LIB_H += log-tree.h
LIB_H += mailmap.h
LIB_H += merge-recursive.h
LIB_H += notes.h
LIB_H += object.h
LIB_H += pack.h
LIB_H += pack-refs.h
@ -542,6 +544,7 @@ LIB_OBJS += match-trees.o
LIB_OBJS += merge-file.o
LIB_OBJS += merge-recursive.o
LIB_OBJS += name-hash.o
LIB_OBJS += notes.o
LIB_OBJS += object.o
LIB_OBJS += pack-check.o
LIB_OBJS += pack-refs.o

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@ -372,6 +372,8 @@ static inline enum object_type object_type(unsigned int mode)
#define GITATTRIBUTES_FILE ".gitattributes"
#define INFOATTRIBUTES_FILE "info/attributes"
#define ATTRIBUTE_MACRO_PREFIX "[attr]"
#define GIT_NOTES_REF_ENVIRONMENT "GIT_NOTES_REF"
#define GIT_NOTES_DEFAULT_REF "refs/notes/commits"
extern int is_bare_repository_cfg;
extern int is_bare_repository(void);
@ -568,6 +570,8 @@ enum object_creation_mode {
extern enum object_creation_mode object_creation_mode;
extern char *notes_ref_name;
extern int grafts_replace_parents;
#define GIT_REPO_VERSION 0

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@ -74,6 +74,7 @@ git-mktag plumbingmanipulators
git-mktree plumbingmanipulators
git-mv mainporcelain common
git-name-rev plumbinginterrogators
git-notes mainporcelain
git-pack-objects plumbingmanipulators
git-pack-redundant plumbinginterrogators
git-pack-refs ancillarymanipulators

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@ -5,6 +5,7 @@
#include "utf8.h"
#include "diff.h"
#include "revision.h"
#include "notes.h"
int save_commit_buffer = 1;

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@ -467,6 +467,11 @@ static int git_default_core_config(const char *var, const char *value)
return 0;
}
if (!strcmp(var, "core.notesref")) {
notes_ref_name = xstrdup(value);
return 0;
}
if (!strcmp(var, "core.pager"))
return git_config_string(&pager_program, var, value);

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@ -49,6 +49,7 @@ enum push_default_type push_default = PUSH_DEFAULT_MATCHING;
#define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS
#endif
enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
char *notes_ref_name;
int grafts_replace_parents = 1;
/* Parallel index stat data preload? */

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@ -22,8 +22,8 @@ Format of STDIN stream:
('author' sp name sp '<' email '>' sp when lf)?
'committer' sp name sp '<' email '>' sp when lf
commit_msg
('from' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf)?
('merge' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf)*
('from' sp committish lf)?
('merge' sp committish lf)*
file_change*
lf?;
commit_msg ::= data;
@ -41,15 +41,18 @@ Format of STDIN stream:
file_obm ::= 'M' sp mode sp (hexsha1 | idnum) sp path_str lf;
file_inm ::= 'M' sp mode sp 'inline' sp path_str lf
data;
note_obm ::= 'N' sp (hexsha1 | idnum) sp committish lf;
note_inm ::= 'N' sp 'inline' sp committish lf
data;
new_tag ::= 'tag' sp tag_str lf
'from' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf
'from' sp committish lf
('tagger' sp name sp '<' email '>' sp when lf)?
tag_msg;
tag_msg ::= data;
reset_branch ::= 'reset' sp ref_str lf
('from' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf)?
('from' sp committish lf)?
lf?;
checkpoint ::= 'checkpoint' lf
@ -88,6 +91,7 @@ Format of STDIN stream:
# stream formatting is: \, " and LF. Otherwise these values
# are UTF8.
#
committish ::= (ref_str | hexsha1 | sha1exp_str | idnum);
ref_str ::= ref;
sha1exp_str ::= sha1exp;
tag_str ::= tag;
@ -2006,6 +2010,80 @@ static void file_change_cr(struct branch *b, int rename)
leaf.tree);
}
static void note_change_n(struct branch *b)
{
const char *p = command_buf.buf + 2;
static struct strbuf uq = STRBUF_INIT;
struct object_entry *oe = oe;
struct branch *s;
unsigned char sha1[20], commit_sha1[20];
uint16_t inline_data = 0;
/* <dataref> or 'inline' */
if (*p == ':') {
char *x;
oe = find_mark(strtoumax(p + 1, &x, 10));
hashcpy(sha1, oe->sha1);
p = x;
} else if (!prefixcmp(p, "inline")) {
inline_data = 1;
p += 6;
} else {
if (get_sha1_hex(p, sha1))
die("Invalid SHA1: %s", command_buf.buf);
oe = find_object(sha1);
p += 40;
}
if (*p++ != ' ')
die("Missing space after SHA1: %s", command_buf.buf);
/* <committish> */
s = lookup_branch(p);
if (s) {
hashcpy(commit_sha1, s->sha1);
} else if (*p == ':') {
uintmax_t commit_mark = strtoumax(p + 1, NULL, 10);
struct object_entry *commit_oe = find_mark(commit_mark);
if (commit_oe->type != OBJ_COMMIT)
die("Mark :%" PRIuMAX " not a commit", commit_mark);
hashcpy(commit_sha1, commit_oe->sha1);
} else if (!get_sha1(p, commit_sha1)) {
unsigned long size;
char *buf = read_object_with_reference(commit_sha1,
commit_type, &size, commit_sha1);
if (!buf || size < 46)
die("Not a valid commit: %s", p);
free(buf);
} else
die("Invalid ref name or SHA1 expression: %s", p);
if (inline_data) {
static struct strbuf buf = STRBUF_INIT;
if (p != uq.buf) {
strbuf_addstr(&uq, p);
p = uq.buf;
}
read_next_command();
parse_data(&buf);
store_object(OBJ_BLOB, &buf, &last_blob, sha1, 0);
} else if (oe) {
if (oe->type != OBJ_BLOB)
die("Not a blob (actually a %s): %s",
typename(oe->type), command_buf.buf);
} else {
enum object_type type = sha1_object_info(sha1, NULL);
if (type < 0)
die("Blob not found: %s", command_buf.buf);
if (type != OBJ_BLOB)
die("Not a blob (actually a %s): %s",
typename(type), command_buf.buf);
}
tree_content_set(&b->branch_tree, sha1_to_hex(commit_sha1), sha1,
S_IFREG | 0644, NULL);
}
static void file_change_deleteall(struct branch *b)
{
release_tree_content_recursive(b->branch_tree.tree);
@ -2175,6 +2253,8 @@ static void parse_new_commit(void)
file_change_cr(b, 1);
else if (!prefixcmp(command_buf.buf, "C "))
file_change_cr(b, 0);
else if (!prefixcmp(command_buf.buf, "N "))
note_change_n(b);
else if (!strcmp("deleteall", command_buf.buf))
file_change_deleteall(b);
else {

121
git-notes.sh Executable file
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@ -0,0 +1,121 @@
#!/bin/sh
USAGE="(edit [-F <file> | -m <msg>] | show) [commit]"
. git-sh-setup
test -z "$1" && usage
ACTION="$1"; shift
test -z "$GIT_NOTES_REF" && GIT_NOTES_REF="$(git config core.notesref)"
test -z "$GIT_NOTES_REF" && GIT_NOTES_REF="refs/notes/commits"
MESSAGE=
while test $# != 0
do
case "$1" in
-m)
test "$ACTION" = "edit" || usage
shift
if test "$#" = "0"; then
die "error: option -m needs an argument"
else
if [ -z "$MESSAGE" ]; then
MESSAGE="$1"
else
MESSAGE="$MESSAGE
$1"
fi
shift
fi
;;
-F)
test "$ACTION" = "edit" || usage
shift
if test "$#" = "0"; then
die "error: option -F needs an argument"
else
if [ -z "$MESSAGE" ]; then
MESSAGE="$(cat "$1")"
else
MESSAGE="$MESSAGE
$(cat "$1")"
fi
shift
fi
;;
-*)
usage
;;
*)
break
;;
esac
done
COMMIT=$(git rev-parse --verify --default HEAD "$@") ||
die "Invalid commit: $@"
case "$ACTION" in
edit)
if [ "${GIT_NOTES_REF#refs/notes/}" = "$GIT_NOTES_REF" ]; then
die "Refusing to edit notes in $GIT_NOTES_REF (outside of refs/notes/)"
fi
MSG_FILE="$GIT_DIR/new-notes-$COMMIT"
GIT_INDEX_FILE="$MSG_FILE.idx"
export GIT_INDEX_FILE
trap '
test -f "$MSG_FILE" && rm "$MSG_FILE"
test -f "$GIT_INDEX_FILE" && rm "$GIT_INDEX_FILE"
' 0
CURRENT_HEAD=$(git show-ref "$GIT_NOTES_REF" | cut -f 1 -d ' ')
if [ -z "$CURRENT_HEAD" ]; then
PARENT=
else
PARENT="-p $CURRENT_HEAD"
git read-tree "$GIT_NOTES_REF" || die "Could not read index"
fi
if [ -z "$MESSAGE" ]; then
GIT_NOTES_REF= git log -1 $COMMIT | sed "s/^/#/" > "$MSG_FILE"
if [ ! -z "$CURRENT_HEAD" ]; then
git cat-file blob :$COMMIT >> "$MSG_FILE" 2> /dev/null
fi
core_editor="$(git config core.editor)"
${GIT_EDITOR:-${core_editor:-${VISUAL:-${EDITOR:-vi}}}} "$MSG_FILE"
else
echo "$MESSAGE" > "$MSG_FILE"
fi
grep -v ^# < "$MSG_FILE" | git stripspace > "$MSG_FILE".processed
mv "$MSG_FILE".processed "$MSG_FILE"
if [ -s "$MSG_FILE" ]; then
BLOB=$(git hash-object -w "$MSG_FILE") ||
die "Could not write into object database"
git update-index --add --cacheinfo 0644 $BLOB $COMMIT ||
die "Could not write index"
else
test -z "$CURRENT_HEAD" &&
die "Will not initialise with empty tree"
git update-index --force-remove $COMMIT ||
die "Could not update index"
fi
TREE=$(git write-tree) || die "Could not write tree"
NEW_HEAD=$(echo Annotate $COMMIT | git commit-tree $TREE $PARENT) ||
die "Could not annotate"
git update-ref -m "Annotate $COMMIT" \
"$GIT_NOTES_REF" $NEW_HEAD $CURRENT_HEAD
;;
show)
git rev-parse -q --verify "$GIT_NOTES_REF":$COMMIT > /dev/null ||
die "No note for commit $COMMIT."
git show "$GIT_NOTES_REF":$COMMIT
;;
*)
usage
esac

429
notes.c Normal file
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@ -0,0 +1,429 @@
#include "cache.h"
#include "commit.h"
#include "notes.h"
#include "refs.h"
#include "utf8.h"
#include "strbuf.h"
#include "tree-walk.h"
/*
* Use a non-balancing simple 16-tree structure with struct int_node as
* internal nodes, and struct leaf_node as leaf nodes. Each int_node has a
* 16-array of pointers to its children.
* The bottom 2 bits of each pointer is used to identify the pointer type
* - ptr & 3 == 0 - NULL pointer, assert(ptr == NULL)
* - ptr & 3 == 1 - pointer to next internal node - cast to struct int_node *
* - ptr & 3 == 2 - pointer to note entry - cast to struct leaf_node *
* - ptr & 3 == 3 - pointer to subtree entry - cast to struct leaf_node *
*
* The root node is a statically allocated struct int_node.
*/
struct int_node {
void *a[16];
};
/*
* Leaf nodes come in two variants, note entries and subtree entries,
* distinguished by the LSb of the leaf node pointer (see above).
* As a note entry, the key is the SHA1 of the referenced commit, and the
* value is the SHA1 of the note object.
* As a subtree entry, the key is the prefix SHA1 (w/trailing NULs) of the
* referenced commit, using the last byte of the key to store the length of
* the prefix. The value is the SHA1 of the tree object containing the notes
* subtree.
*/
struct leaf_node {
unsigned char key_sha1[20];
unsigned char val_sha1[20];
};
#define PTR_TYPE_NULL 0
#define PTR_TYPE_INTERNAL 1
#define PTR_TYPE_NOTE 2
#define PTR_TYPE_SUBTREE 3
#define GET_PTR_TYPE(ptr) ((uintptr_t) (ptr) & 3)
#define CLR_PTR_TYPE(ptr) ((void *) ((uintptr_t) (ptr) & ~3))
#define SET_PTR_TYPE(ptr, type) ((void *) ((uintptr_t) (ptr) | (type)))
#define GET_NIBBLE(n, sha1) (((sha1[n >> 1]) >> ((~n & 0x01) << 2)) & 0x0f)
#define SUBTREE_SHA1_PREFIXCMP(key_sha1, subtree_sha1) \
(memcmp(key_sha1, subtree_sha1, subtree_sha1[19]))
static struct int_node root_node;
static int initialized;
static void load_subtree(struct leaf_node *subtree, struct int_node *node,
unsigned int n);
/*
* Search the tree until the appropriate location for the given key is found:
* 1. Start at the root node, with n = 0
* 2. If a[0] at the current level is a matching subtree entry, unpack that
* subtree entry and remove it; restart search at the current level.
* 3. Use the nth nibble of the key as an index into a:
* - If a[n] is an int_node, recurse from #2 into that node and increment n
* - If a matching subtree entry, unpack that subtree entry (and remove it);
* restart search at the current level.
* - Otherwise, we have found one of the following:
* - a subtree entry which does not match the key
* - a note entry which may or may not match the key
* - an unused leaf node (NULL)
* In any case, set *tree and *n, and return pointer to the tree location.
*/
static void **note_tree_search(struct int_node **tree,
unsigned char *n, const unsigned char *key_sha1)
{
struct leaf_node *l;
unsigned char i;
void *p = (*tree)->a[0];
if (GET_PTR_TYPE(p) == PTR_TYPE_SUBTREE) {
l = (struct leaf_node *) CLR_PTR_TYPE(p);
if (!SUBTREE_SHA1_PREFIXCMP(key_sha1, l->key_sha1)) {
/* unpack tree and resume search */
(*tree)->a[0] = NULL;
load_subtree(l, *tree, *n);
free(l);
return note_tree_search(tree, n, key_sha1);
}
}
i = GET_NIBBLE(*n, key_sha1);
p = (*tree)->a[i];
switch(GET_PTR_TYPE(p)) {
case PTR_TYPE_INTERNAL:
*tree = CLR_PTR_TYPE(p);
(*n)++;
return note_tree_search(tree, n, key_sha1);
case PTR_TYPE_SUBTREE:
l = (struct leaf_node *) CLR_PTR_TYPE(p);
if (!SUBTREE_SHA1_PREFIXCMP(key_sha1, l->key_sha1)) {
/* unpack tree and resume search */
(*tree)->a[i] = NULL;
load_subtree(l, *tree, *n);
free(l);
return note_tree_search(tree, n, key_sha1);
}
/* fall through */
default:
return &((*tree)->a[i]);
}
}
/*
* To find a leaf_node:
* Search to the tree location appropriate for the given key:
* If a note entry with matching key, return the note entry, else return NULL.
*/
static struct leaf_node *note_tree_find(struct int_node *tree, unsigned char n,
const unsigned char *key_sha1)
{
void **p = note_tree_search(&tree, &n, key_sha1);
if (GET_PTR_TYPE(*p) == PTR_TYPE_NOTE) {
struct leaf_node *l = (struct leaf_node *) CLR_PTR_TYPE(*p);
if (!hashcmp(key_sha1, l->key_sha1))
return l;
}
return NULL;
}
/* Create a new blob object by concatenating the two given blob objects */
static int concatenate_notes(unsigned char *cur_sha1,
const unsigned char *new_sha1)
{
char *cur_msg, *new_msg, *buf;
unsigned long cur_len, new_len, buf_len;
enum object_type cur_type, new_type;
int ret;
/* read in both note blob objects */
new_msg = read_sha1_file(new_sha1, &new_type, &new_len);
if (!new_msg || !new_len || new_type != OBJ_BLOB) {
free(new_msg);
return 0;
}
cur_msg = read_sha1_file(cur_sha1, &cur_type, &cur_len);
if (!cur_msg || !cur_len || cur_type != OBJ_BLOB) {
free(cur_msg);
free(new_msg);
hashcpy(cur_sha1, new_sha1);
return 0;
}
/* we will separate the notes by a newline anyway */
if (cur_msg[cur_len - 1] == '\n')
cur_len--;
/* concatenate cur_msg and new_msg into buf */
buf_len = cur_len + 1 + new_len;
buf = (char *) xmalloc(buf_len);
memcpy(buf, cur_msg, cur_len);
buf[cur_len] = '\n';
memcpy(buf + cur_len + 1, new_msg, new_len);
free(cur_msg);
free(new_msg);
/* create a new blob object from buf */
ret = write_sha1_file(buf, buf_len, "blob", cur_sha1);
free(buf);
return ret;
}
/*
* To insert a leaf_node:
* Search to the tree location appropriate for the given leaf_node's key:
* - If location is unused (NULL), store the tweaked pointer directly there
* - If location holds a note entry that matches the note-to-be-inserted, then
* concatenate the two notes.
* - If location holds a note entry that matches the subtree-to-be-inserted,
* then unpack the subtree-to-be-inserted into the location.
* - If location holds a matching subtree entry, unpack the subtree at that
* location, and restart the insert operation from that level.
* - Else, create a new int_node, holding both the node-at-location and the
* node-to-be-inserted, and store the new int_node into the location.
*/
static void note_tree_insert(struct int_node *tree, unsigned char n,
struct leaf_node *entry, unsigned char type)
{
struct int_node *new_node;
struct leaf_node *l;
void **p = note_tree_search(&tree, &n, entry->key_sha1);
assert(GET_PTR_TYPE(entry) == 0); /* no type bits set */
l = (struct leaf_node *) CLR_PTR_TYPE(*p);
switch(GET_PTR_TYPE(*p)) {
case PTR_TYPE_NULL:
assert(!*p);
*p = SET_PTR_TYPE(entry, type);
return;
case PTR_TYPE_NOTE:
switch (type) {
case PTR_TYPE_NOTE:
if (!hashcmp(l->key_sha1, entry->key_sha1)) {
/* skip concatenation if l == entry */
if (!hashcmp(l->val_sha1, entry->val_sha1))
return;
if (concatenate_notes(l->val_sha1,
entry->val_sha1))
die("failed to concatenate note %s "
"into note %s for commit %s",
sha1_to_hex(entry->val_sha1),
sha1_to_hex(l->val_sha1),
sha1_to_hex(l->key_sha1));
free(entry);
return;
}
break;
case PTR_TYPE_SUBTREE:
if (!SUBTREE_SHA1_PREFIXCMP(l->key_sha1,
entry->key_sha1)) {
/* unpack 'entry' */
load_subtree(entry, tree, n);
free(entry);
return;
}
break;
}
break;
case PTR_TYPE_SUBTREE:
if (!SUBTREE_SHA1_PREFIXCMP(entry->key_sha1, l->key_sha1)) {
/* unpack 'l' and restart insert */
*p = NULL;
load_subtree(l, tree, n);
free(l);
note_tree_insert(tree, n, entry, type);
return;
}
break;
}
/* non-matching leaf_node */
assert(GET_PTR_TYPE(*p) == PTR_TYPE_NOTE ||
GET_PTR_TYPE(*p) == PTR_TYPE_SUBTREE);
new_node = (struct int_node *) xcalloc(sizeof(struct int_node), 1);
note_tree_insert(new_node, n + 1, l, GET_PTR_TYPE(*p));
*p = SET_PTR_TYPE(new_node, PTR_TYPE_INTERNAL);
note_tree_insert(new_node, n + 1, entry, type);
}
/* Free the entire notes data contained in the given tree */
static void note_tree_free(struct int_node *tree)
{
unsigned int i;
for (i = 0; i < 16; i++) {
void *p = tree->a[i];
switch(GET_PTR_TYPE(p)) {
case PTR_TYPE_INTERNAL:
note_tree_free(CLR_PTR_TYPE(p));
/* fall through */
case PTR_TYPE_NOTE:
case PTR_TYPE_SUBTREE:
free(CLR_PTR_TYPE(p));
}
}
}
/*
* Convert a partial SHA1 hex string to the corresponding partial SHA1 value.
* - hex - Partial SHA1 segment in ASCII hex format
* - hex_len - Length of above segment. Must be multiple of 2 between 0 and 40
* - sha1 - Partial SHA1 value is written here
* - sha1_len - Max #bytes to store in sha1, Must be >= hex_len / 2, and < 20
* Returns -1 on error (invalid arguments or invalid SHA1 (not in hex format).
* Otherwise, returns number of bytes written to sha1 (i.e. hex_len / 2).
* Pads sha1 with NULs up to sha1_len (not included in returned length).
*/
static int get_sha1_hex_segment(const char *hex, unsigned int hex_len,
unsigned char *sha1, unsigned int sha1_len)
{
unsigned int i, len = hex_len >> 1;
if (hex_len % 2 != 0 || len > sha1_len)
return -1;
for (i = 0; i < len; i++) {
unsigned int val = (hexval(hex[0]) << 4) | hexval(hex[1]);
if (val & ~0xff)
return -1;
*sha1++ = val;
hex += 2;
}
for (; i < sha1_len; i++)
*sha1++ = 0;
return len;
}
static void load_subtree(struct leaf_node *subtree, struct int_node *node,
unsigned int n)
{
unsigned char commit_sha1[20];
unsigned int prefix_len;
void *buf;
struct tree_desc desc;
struct name_entry entry;
buf = fill_tree_descriptor(&desc, subtree->val_sha1);
if (!buf)
die("Could not read %s for notes-index",
sha1_to_hex(subtree->val_sha1));
prefix_len = subtree->key_sha1[19];
assert(prefix_len * 2 >= n);
memcpy(commit_sha1, subtree->key_sha1, prefix_len);
while (tree_entry(&desc, &entry)) {
int len = get_sha1_hex_segment(entry.path, strlen(entry.path),
commit_sha1 + prefix_len, 20 - prefix_len);
if (len < 0)
continue; /* entry.path is not a SHA1 sum. Skip */
len += prefix_len;
/*
* If commit SHA1 is complete (len == 20), assume note object
* If commit SHA1 is incomplete (len < 20), assume note subtree
*/
if (len <= 20) {
unsigned char type = PTR_TYPE_NOTE;
struct leaf_node *l = (struct leaf_node *)
xcalloc(sizeof(struct leaf_node), 1);
hashcpy(l->key_sha1, commit_sha1);
hashcpy(l->val_sha1, entry.sha1);
if (len < 20) {
l->key_sha1[19] = (unsigned char) len;
type = PTR_TYPE_SUBTREE;
}
note_tree_insert(node, n, l, type);
}
}
free(buf);
}
static void initialize_notes(const char *notes_ref_name)
{
unsigned char sha1[20], commit_sha1[20];
unsigned mode;
struct leaf_node root_tree;
if (!notes_ref_name || read_ref(notes_ref_name, commit_sha1) ||
get_tree_entry(commit_sha1, "", sha1, &mode))
return;
hashclr(root_tree.key_sha1);
hashcpy(root_tree.val_sha1, sha1);
load_subtree(&root_tree, &root_node, 0);
}
static unsigned char *lookup_notes(const unsigned char *commit_sha1)
{
struct leaf_node *found = note_tree_find(&root_node, 0, commit_sha1);
if (found)
return found->val_sha1;
return NULL;
}
void free_notes(void)
{
note_tree_free(&root_node);
memset(&root_node, 0, sizeof(struct int_node));
initialized = 0;
}
void get_commit_notes(const struct commit *commit, struct strbuf *sb,
const char *output_encoding, int flags)
{
static const char utf8[] = "utf-8";
unsigned char *sha1;
char *msg, *msg_p;
unsigned long linelen, msglen;
enum object_type type;
if (!initialized) {
const char *env = getenv(GIT_NOTES_REF_ENVIRONMENT);
if (env)
notes_ref_name = getenv(GIT_NOTES_REF_ENVIRONMENT);
else if (!notes_ref_name)
notes_ref_name = GIT_NOTES_DEFAULT_REF;
initialize_notes(notes_ref_name);
initialized = 1;
}
sha1 = lookup_notes(commit->object.sha1);
if (!sha1)
return;
if (!(msg = read_sha1_file(sha1, &type, &msglen)) || !msglen ||
type != OBJ_BLOB) {
free(msg);
return;
}
if (output_encoding && *output_encoding &&
strcmp(utf8, output_encoding)) {
char *reencoded = reencode_string(msg, output_encoding, utf8);
if (reencoded) {
free(msg);
msg = reencoded;
msglen = strlen(msg);
}
}
/* we will end the annotation by a newline anyway */
if (msglen && msg[msglen - 1] == '\n')
msglen--;
if (flags & NOTES_SHOW_HEADER)
strbuf_addstr(sb, "\nNotes:\n");
for (msg_p = msg; msg_p < msg + msglen; msg_p += linelen + 1) {
linelen = strchrnul(msg_p, '\n') - msg_p;
if (flags & NOTES_INDENT)
strbuf_addstr(sb, " ");
strbuf_add(sb, msg_p, linelen);
strbuf_addch(sb, '\n');
}
free(msg);
}

13
notes.h Normal file
View File

@ -0,0 +1,13 @@
#ifndef NOTES_H
#define NOTES_H
/* Free (and de-initialize) the internal notes tree structure */
void free_notes(void);
#define NOTES_SHOW_HEADER 1
#define NOTES_INDENT 2
void get_commit_notes(const struct commit *commit, struct strbuf *sb,
const char *output_encoding, int flags);
#endif

View File

@ -6,6 +6,7 @@
#include "string-list.h"
#include "mailmap.h"
#include "log-tree.h"
#include "notes.h"
#include "color.h"
#include "reflog-walk.h"
@ -773,6 +774,10 @@ static size_t format_commit_item(struct strbuf *sb, const char *placeholder,
return 2;
}
return 0; /* unknown %g placeholder */
case 'N':
get_commit_notes(commit, sb, git_log_output_encoding ?
git_log_output_encoding : git_commit_encoding, 0);
return 1;
}
/* For the rest we have to parse the commit header. */
@ -1050,5 +1055,10 @@ void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit,
*/
if (fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body)
strbuf_addch(sb, '\n');
if (fmt != CMIT_FMT_ONELINE)
get_commit_notes(commit, sb, encoding,
NOTES_SHOW_HEADER | NOTES_INDENT);
free(reencoded);
}

150
t/t3301-notes.sh Executable file
View File

@ -0,0 +1,150 @@
#!/bin/sh
#
# Copyright (c) 2007 Johannes E. Schindelin
#
test_description='Test commit notes'
. ./test-lib.sh
cat > fake_editor.sh << \EOF
echo "$MSG" > "$1"
echo "$MSG" >& 2
EOF
chmod a+x fake_editor.sh
VISUAL=./fake_editor.sh
export VISUAL
test_expect_success 'cannot annotate non-existing HEAD' '
(MSG=3 && export MSG && test_must_fail git notes edit)
'
test_expect_success setup '
: > a1 &&
git add a1 &&
test_tick &&
git commit -m 1st &&
: > a2 &&
git add a2 &&
test_tick &&
git commit -m 2nd
'
test_expect_success 'need valid notes ref' '
(MSG=1 GIT_NOTES_REF=/ && export MSG GIT_NOTES_REF &&
test_must_fail git notes edit) &&
(MSG=2 GIT_NOTES_REF=/ && export MSG GIT_NOTES_REF &&
test_must_fail git notes show)
'
test_expect_success 'refusing to edit in refs/heads/' '
(MSG=1 GIT_NOTES_REF=refs/heads/bogus &&
export MSG GIT_NOTES_REF &&
test_must_fail git notes edit)
'
test_expect_success 'refusing to edit in refs/remotes/' '
(MSG=1 GIT_NOTES_REF=refs/remotes/bogus &&
export MSG GIT_NOTES_REF &&
test_must_fail git notes edit)
'
# 1 indicates caught gracefully by die, 128 means git-show barked
test_expect_success 'handle empty notes gracefully' '
git notes show ; test 1 = $?
'
test_expect_success 'create notes' '
git config core.notesRef refs/notes/commits &&
MSG=b1 git notes edit &&
test ! -f .git/new-notes &&
test 1 = $(git ls-tree refs/notes/commits | wc -l) &&
test b1 = $(git notes show) &&
git show HEAD^ &&
test_must_fail git notes show HEAD^
'
cat > expect << EOF
commit 268048bfb8a1fb38e703baceb8ab235421bf80c5
Author: A U Thor <author@example.com>
Date: Thu Apr 7 15:14:13 2005 -0700
2nd
Notes:
b1
EOF
test_expect_success 'show notes' '
! (git cat-file commit HEAD | grep b1) &&
git log -1 > output &&
test_cmp expect output
'
test_expect_success 'create multi-line notes (setup)' '
: > a3 &&
git add a3 &&
test_tick &&
git commit -m 3rd &&
MSG="b3
c3c3c3c3
d3d3d3" git notes edit
'
cat > expect-multiline << EOF
commit 1584215f1d29c65e99c6c6848626553fdd07fd75
Author: A U Thor <author@example.com>
Date: Thu Apr 7 15:15:13 2005 -0700
3rd
Notes:
b3
c3c3c3c3
d3d3d3
EOF
printf "\n" >> expect-multiline
cat expect >> expect-multiline
test_expect_success 'show multi-line notes' '
git log -2 > output &&
test_cmp expect-multiline output
'
test_expect_success 'create -m and -F notes (setup)' '
: > a4 &&
git add a4 &&
test_tick &&
git commit -m 4th &&
echo "xyzzy" > note5 &&
git notes edit -m spam -F note5 -m "foo
bar
baz"
'
whitespace=" "
cat > expect-m-and-F << EOF
commit 15023535574ded8b1a89052b32673f84cf9582b8
Author: A U Thor <author@example.com>
Date: Thu Apr 7 15:16:13 2005 -0700
4th
Notes:
spam
$whitespace
xyzzy
$whitespace
foo
bar
baz
EOF
printf "\n" >> expect-m-and-F
cat expect-multiline >> expect-m-and-F
test_expect_success 'show -m and -F notes' '
git log -3 > output &&
test_cmp expect-m-and-F output
'
test_done

118
t/t3302-notes-index-expensive.sh Executable file
View File

@ -0,0 +1,118 @@
#!/bin/sh
#
# Copyright (c) 2007 Johannes E. Schindelin
#
test_description='Test commit notes index (expensive!)'
. ./test-lib.sh
test -z "$GIT_NOTES_TIMING_TESTS" && {
say Skipping timing tests
test_done
exit
}
create_repo () {
number_of_commits=$1
nr=0
test -d .git || {
git init &&
(
while [ $nr -lt $number_of_commits ]; do
nr=$(($nr+1))
mark=$(($nr+$nr))
notemark=$(($mark+1))
test_tick &&
cat <<INPUT_END &&
commit refs/heads/master
mark :$mark
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
commit #$nr
COMMIT
M 644 inline file
data <<EOF
file in commit #$nr
EOF
blob
mark :$notemark
data <<EOF
note for commit #$nr
EOF
INPUT_END
echo "N :$notemark :$mark" >> note_commit
done &&
test_tick &&
cat <<INPUT_END &&
commit refs/notes/commits
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
notes
COMMIT
INPUT_END
cat note_commit
) |
git fast-import --quiet &&
git config core.notesRef refs/notes/commits
}
}
test_notes () {
count=$1 &&
git config core.notesRef refs/notes/commits &&
git log | grep "^ " > output &&
i=$count &&
while [ $i -gt 0 ]; do
echo " commit #$i" &&
echo " note for commit #$i" &&
i=$(($i-1));
done > expect &&
test_cmp expect output
}
cat > time_notes << \EOF
mode=$1
i=1
while [ $i -lt $2 ]; do
case $1 in
no-notes)
GIT_NOTES_REF=non-existing; export GIT_NOTES_REF
;;
notes)
unset GIT_NOTES_REF
;;
esac
git log >/dev/null
i=$(($i+1))
done
EOF
time_notes () {
for mode in no-notes notes
do
echo $mode
/usr/bin/time sh ../time_notes $mode $1
done
}
for count in 10 100 1000 10000; do
mkdir $count
(cd $count;
test_expect_success "setup $count" "create_repo $count"
test_expect_success 'notes work' "test_notes $count"
test_expect_success 'notes timing' "time_notes 100"
)
done
test_done

188
t/t3303-notes-subtrees.sh Executable file
View File

@ -0,0 +1,188 @@
#!/bin/sh
test_description='Test commit notes organized in subtrees'
. ./test-lib.sh
number_of_commits=100
start_note_commit () {
test_tick &&
cat <<INPUT_END
commit refs/notes/commits
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
notes
COMMIT
from refs/notes/commits^0
deleteall
INPUT_END
}
verify_notes () {
git log | grep "^ " > output &&
i=$number_of_commits &&
while [ $i -gt 0 ]; do
echo " commit #$i" &&
echo " note for commit #$i" &&
i=$(($i-1));
done > expect &&
test_cmp expect output
}
test_expect_success "setup: create $number_of_commits commits" '
(
nr=0 &&
while [ $nr -lt $number_of_commits ]; do
nr=$(($nr+1)) &&
test_tick &&
cat <<INPUT_END
commit refs/heads/master
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
commit #$nr
COMMIT
M 644 inline file
data <<EOF
file in commit #$nr
EOF
INPUT_END
done &&
test_tick &&
cat <<INPUT_END
commit refs/notes/commits
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
no notes
COMMIT
deleteall
INPUT_END
) |
git fast-import --quiet &&
git config core.notesRef refs/notes/commits
'
test_sha1_based () {
(
start_note_commit &&
nr=$number_of_commits &&
git rev-list refs/heads/master |
while read sha1; do
note_path=$(echo "$sha1" | sed "$1")
cat <<INPUT_END &&
M 100644 inline $note_path
data <<EOF
note for commit #$nr
EOF
INPUT_END
nr=$(($nr-1))
done
) |
git fast-import --quiet
}
test_expect_success 'test notes in 2/38-fanout' 'test_sha1_based "s|^..|&/|"'
test_expect_success 'verify notes in 2/38-fanout' 'verify_notes'
test_expect_success 'test notes in 4/36-fanout' 'test_sha1_based "s|^....|&/|"'
test_expect_success 'verify notes in 4/36-fanout' 'verify_notes'
test_expect_success 'test notes in 2/2/36-fanout' 'test_sha1_based "s|^\(..\)\(..\)|\1/\2/|"'
test_expect_success 'verify notes in 2/2/36-fanout' 'verify_notes'
test_same_notes () {
(
start_note_commit &&
nr=$number_of_commits &&
git rev-list refs/heads/master |
while read sha1; do
first_note_path=$(echo "$sha1" | sed "$1")
second_note_path=$(echo "$sha1" | sed "$2")
cat <<INPUT_END &&
M 100644 inline $second_note_path
data <<EOF
note for commit #$nr
EOF
M 100644 inline $first_note_path
data <<EOF
note for commit #$nr
EOF
INPUT_END
nr=$(($nr-1))
done
) |
git fast-import --quiet
}
test_expect_success 'test same notes in 4/36-fanout and 2/38-fanout' 'test_same_notes "s|^..|&/|" "s|^....|&/|"'
test_expect_success 'verify same notes in 4/36-fanout and 2/38-fanout' 'verify_notes'
test_expect_success 'test same notes in 2/38-fanout and 2/2/36-fanout' 'test_same_notes "s|^\(..\)\(..\)|\1/\2/|" "s|^..|&/|"'
test_expect_success 'verify same notes in 2/38-fanout and 2/2/36-fanout' 'verify_notes'
test_expect_success 'test same notes in 4/36-fanout and 2/2/36-fanout' 'test_same_notes "s|^\(..\)\(..\)|\1/\2/|" "s|^....|&/|"'
test_expect_success 'verify same notes in 4/36-fanout and 2/2/36-fanout' 'verify_notes'
test_concatenated_notes () {
(
start_note_commit &&
nr=$number_of_commits &&
git rev-list refs/heads/master |
while read sha1; do
first_note_path=$(echo "$sha1" | sed "$1")
second_note_path=$(echo "$sha1" | sed "$2")
cat <<INPUT_END &&
M 100644 inline $second_note_path
data <<EOF
second note for commit #$nr
EOF
M 100644 inline $first_note_path
data <<EOF
first note for commit #$nr
EOF
INPUT_END
nr=$(($nr-1))
done
) |
git fast-import --quiet
}
verify_concatenated_notes () {
git log | grep "^ " > output &&
i=$number_of_commits &&
while [ $i -gt 0 ]; do
echo " commit #$i" &&
echo " first note for commit #$i" &&
echo " second note for commit #$i" &&
i=$(($i-1));
done > expect &&
test_cmp expect output
}
test_expect_success 'test notes in 4/36-fanout concatenated with 2/38-fanout' 'test_concatenated_notes "s|^..|&/|" "s|^....|&/|"'
test_expect_success 'verify notes in 4/36-fanout concatenated with 2/38-fanout' 'verify_concatenated_notes'
test_expect_success 'test notes in 2/38-fanout concatenated with 2/2/36-fanout' 'test_concatenated_notes "s|^\(..\)\(..\)|\1/\2/|" "s|^..|&/|"'
test_expect_success 'verify notes in 2/38-fanout concatenated with 2/2/36-fanout' 'verify_concatenated_notes'
test_expect_success 'test notes in 4/36-fanout concatenated with 2/2/36-fanout' 'test_concatenated_notes "s|^\(..\)\(..\)|\1/\2/|" "s|^....|&/|"'
test_expect_success 'verify notes in 4/36-fanout concatenated with 2/2/36-fanout' 'verify_concatenated_notes'
test_done

View File

@ -1088,4 +1088,170 @@ INPUT_END
test_expect_success 'P: fail on blob mark in gitlink' '
test_must_fail git fast-import <input'
###
### series Q (notes)
###
note1_data="Note for the first commit"
note2_data="Note for the second commit"
note3_data="Note for the third commit"
test_tick
cat >input <<INPUT_END
blob
mark :2
data <<EOF
$file2_data
EOF
commit refs/heads/notes-test
mark :3
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
first (:3)
COMMIT
M 644 :2 file2
blob
mark :4
data $file4_len
$file4_data
commit refs/heads/notes-test
mark :5
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
second (:5)
COMMIT
M 644 :4 file4
commit refs/heads/notes-test
mark :6
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
third (:6)
COMMIT
M 644 inline file5
data <<EOF
$file5_data
EOF
M 755 inline file6
data <<EOF
$file6_data
EOF
blob
mark :7
data <<EOF
$note1_data
EOF
blob
mark :8
data <<EOF
$note2_data
EOF
commit refs/notes/foobar
mark :9
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
notes (:9)
COMMIT
N :7 :3
N :8 :5
N inline :6
data <<EOF
$note3_data
EOF
INPUT_END
test_expect_success \
'Q: commit notes' \
'git fast-import <input &&
git whatchanged notes-test'
test_expect_success \
'Q: verify pack' \
'for p in .git/objects/pack/*.pack;do git verify-pack $p||exit;done'
commit1=$(git rev-parse notes-test~2)
commit2=$(git rev-parse notes-test^)
commit3=$(git rev-parse notes-test)
cat >expect <<EOF
author $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
first (:3)
EOF
test_expect_success \
'Q: verify first commit' \
'git cat-file commit notes-test~2 | sed 1d >actual &&
test_cmp expect actual'
cat >expect <<EOF
parent $commit1
author $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
second (:5)
EOF
test_expect_success \
'Q: verify second commit' \
'git cat-file commit notes-test^ | sed 1d >actual &&
test_cmp expect actual'
cat >expect <<EOF
parent $commit2
author $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
third (:6)
EOF
test_expect_success \
'Q: verify third commit' \
'git cat-file commit notes-test | sed 1d >actual &&
test_cmp expect actual'
cat >expect <<EOF
author $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
notes (:9)
EOF
test_expect_success \
'Q: verify notes commit' \
'git cat-file commit refs/notes/foobar | sed 1d >actual &&
test_cmp expect actual'
cat >expect.unsorted <<EOF
100644 blob $commit1
100644 blob $commit2
100644 blob $commit3
EOF
cat expect.unsorted | sort >expect
test_expect_success \
'Q: verify notes tree' \
'git cat-file -p refs/notes/foobar^{tree} | sed "s/ [0-9a-f]* / /" >actual &&
test_cmp expect actual'
echo "$note1_data" >expect
test_expect_success \
'Q: verify note for first commit' \
'git cat-file blob refs/notes/foobar:$commit1 >actual && test_cmp expect actual'
echo "$note2_data" >expect
test_expect_success \
'Q: verify note for second commit' \
'git cat-file blob refs/notes/foobar:$commit2 >actual && test_cmp expect actual'
echo "$note3_data" >expect
test_expect_success \
'Q: verify note for third commit' \
'git cat-file blob refs/notes/foobar:$commit3 >actual && test_cmp expect actual'
test_done