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fast-import: Add support for importing commit notes
Introduce a 'notemodify' subcommand of the 'commit' command. This subcommand is similar to 'filemodify', except that no mode is supplied (all notes have mode 0644), and the path is set to the hex SHA1 of the given "comittish". This enables fast import of note objects along with their associated commits, since the notes can now be named using the mark references of their corresponding commits. The patch also includes a test case of the added functionality. Signed-off-by: Johan Herland <johan@herland.net> Acked-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johan Herland
Junio C Hamano
parent
d9246d4303
commit
a8dd2e7d2b
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@ -316,7 +316,7 @@ change to the project.
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data
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('from' SP <committish> LF)?
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('merge' SP <committish> LF)?
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(filemodify | filedelete | filecopy | filerename | filedeleteall)*
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(filemodify | filedelete | filecopy | filerename | filedeleteall | notemodify)*
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LF?
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....
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@ -339,14 +339,13 @@ commit message use a 0 length data. Commit messages are free-form
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and are not interpreted by Git. Currently they must be encoded in
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UTF-8, as fast-import does not permit other encodings to be specified.
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Zero or more `filemodify`, `filedelete`, `filecopy`, `filerename`
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and `filedeleteall` commands
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Zero or more `filemodify`, `filedelete`, `filecopy`, `filerename`,
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`filedeleteall` and `notemodify` commands
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may be included to update the contents of the branch prior to
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creating the commit. These commands may be supplied in any order.
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However it is recommended that a `filedeleteall` command precede
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all `filemodify`, `filecopy` and `filerename` commands in the same
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commit, as `filedeleteall`
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wipes the branch clean (see below).
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all `filemodify`, `filecopy`, `filerename` and `notemodify` commands in
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the same commit, as `filedeleteall` wipes the branch clean (see below).
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The `LF` after the command is optional (it used to be required).
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@ -595,6 +594,40 @@ more memory per active branch (less than 1 MiB for even most large
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projects); so frontends that can easily obtain only the affected
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paths for a commit are encouraged to do so.
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`notemodify`
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^^^^^^^^^^^^
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Included in a `commit` command to add a new note (annotating a given
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commit) or change the content of an existing note. This command has
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two different means of specifying the content of the note.
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External data format::
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The data content for the note was already supplied by a prior
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`blob` command. The frontend just needs to connect it to the
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commit that is to be annotated.
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+
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....
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'N' SP <dataref> SP <committish> LF
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....
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+
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Here `<dataref>` can be either a mark reference (`:<idnum>`)
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set by a prior `blob` command, or a full 40-byte SHA-1 of an
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existing Git blob object.
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Inline data format::
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The data content for the note has not been supplied yet.
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The frontend wants to supply it as part of this modify
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command.
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+
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....
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'N' SP 'inline' SP <committish> LF
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data
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....
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+
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See below for a detailed description of the `data` command.
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In both formats `<committish>` is any of the commit specification
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expressions also accepted by `from` (see above).
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`mark`
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~~~~~~
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Arranges for fast-import to save a reference to the current object, allowing
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@ -22,8 +22,8 @@ Format of STDIN stream:
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('author' sp name sp '<' email '>' sp when lf)?
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'committer' sp name sp '<' email '>' sp when lf
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commit_msg
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('from' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf)?
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('merge' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf)*
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('from' sp committish lf)?
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('merge' sp committish lf)*
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file_change*
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lf?;
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commit_msg ::= data;
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@ -41,15 +41,18 @@ Format of STDIN stream:
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file_obm ::= 'M' sp mode sp (hexsha1 | idnum) sp path_str lf;
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file_inm ::= 'M' sp mode sp 'inline' sp path_str lf
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data;
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note_obm ::= 'N' sp (hexsha1 | idnum) sp committish lf;
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note_inm ::= 'N' sp 'inline' sp committish lf
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data;
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new_tag ::= 'tag' sp tag_str lf
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'from' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf
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'from' sp committish lf
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('tagger' sp name sp '<' email '>' sp when lf)?
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tag_msg;
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tag_msg ::= data;
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reset_branch ::= 'reset' sp ref_str lf
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('from' sp (ref_str | hexsha1 | sha1exp_str | idnum) lf)?
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('from' sp committish lf)?
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lf?;
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checkpoint ::= 'checkpoint' lf
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@ -88,6 +91,7 @@ Format of STDIN stream:
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# stream formatting is: \, " and LF. Otherwise these values
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# are UTF8.
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#
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committish ::= (ref_str | hexsha1 | sha1exp_str | idnum);
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ref_str ::= ref;
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sha1exp_str ::= sha1exp;
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tag_str ::= tag;
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@ -2006,6 +2010,80 @@ static void file_change_cr(struct branch *b, int rename)
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leaf.tree);
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}
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static void note_change_n(struct branch *b)
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{
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const char *p = command_buf.buf + 2;
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static struct strbuf uq = STRBUF_INIT;
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struct object_entry *oe = oe;
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struct branch *s;
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unsigned char sha1[20], commit_sha1[20];
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uint16_t inline_data = 0;
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/* <dataref> or 'inline' */
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if (*p == ':') {
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char *x;
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oe = find_mark(strtoumax(p + 1, &x, 10));
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hashcpy(sha1, oe->sha1);
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p = x;
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} else if (!prefixcmp(p, "inline")) {
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inline_data = 1;
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p += 6;
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} else {
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if (get_sha1_hex(p, sha1))
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die("Invalid SHA1: %s", command_buf.buf);
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oe = find_object(sha1);
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p += 40;
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}
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if (*p++ != ' ')
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die("Missing space after SHA1: %s", command_buf.buf);
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/* <committish> */
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s = lookup_branch(p);
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if (s) {
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hashcpy(commit_sha1, s->sha1);
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} else if (*p == ':') {
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uintmax_t commit_mark = strtoumax(p + 1, NULL, 10);
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struct object_entry *commit_oe = find_mark(commit_mark);
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if (commit_oe->type != OBJ_COMMIT)
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die("Mark :%" PRIuMAX " not a commit", commit_mark);
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hashcpy(commit_sha1, commit_oe->sha1);
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} else if (!get_sha1(p, commit_sha1)) {
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unsigned long size;
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char *buf = read_object_with_reference(commit_sha1,
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commit_type, &size, commit_sha1);
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if (!buf || size < 46)
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die("Not a valid commit: %s", p);
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free(buf);
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} else
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die("Invalid ref name or SHA1 expression: %s", p);
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if (inline_data) {
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static struct strbuf buf = STRBUF_INIT;
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if (p != uq.buf) {
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strbuf_addstr(&uq, p);
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p = uq.buf;
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}
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read_next_command();
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parse_data(&buf);
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store_object(OBJ_BLOB, &buf, &last_blob, sha1, 0);
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} else if (oe) {
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if (oe->type != OBJ_BLOB)
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die("Not a blob (actually a %s): %s",
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typename(oe->type), command_buf.buf);
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} else {
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enum object_type type = sha1_object_info(sha1, NULL);
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if (type < 0)
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die("Blob not found: %s", command_buf.buf);
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if (type != OBJ_BLOB)
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die("Not a blob (actually a %s): %s",
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typename(type), command_buf.buf);
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}
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tree_content_set(&b->branch_tree, sha1_to_hex(commit_sha1), sha1,
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S_IFREG | 0644, NULL);
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}
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static void file_change_deleteall(struct branch *b)
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{
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release_tree_content_recursive(b->branch_tree.tree);
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@ -2175,6 +2253,8 @@ static void parse_new_commit(void)
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file_change_cr(b, 1);
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else if (!prefixcmp(command_buf.buf, "C "))
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file_change_cr(b, 0);
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else if (!prefixcmp(command_buf.buf, "N "))
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note_change_n(b);
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else if (!strcmp("deleteall", command_buf.buf))
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file_change_deleteall(b);
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else {
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@ -1088,4 +1088,170 @@ INPUT_END
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test_expect_success 'P: fail on blob mark in gitlink' '
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test_must_fail git fast-import <input'
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###
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### series Q (notes)
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###
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note1_data="Note for the first commit"
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note2_data="Note for the second commit"
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note3_data="Note for the third commit"
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test_tick
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cat >input <<INPUT_END
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blob
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mark :2
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data <<EOF
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$file2_data
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EOF
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commit refs/heads/notes-test
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mark :3
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committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
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data <<COMMIT
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first (:3)
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COMMIT
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M 644 :2 file2
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blob
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mark :4
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data $file4_len
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$file4_data
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commit refs/heads/notes-test
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mark :5
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committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
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data <<COMMIT
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second (:5)
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COMMIT
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M 644 :4 file4
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commit refs/heads/notes-test
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mark :6
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committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
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data <<COMMIT
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third (:6)
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COMMIT
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M 644 inline file5
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data <<EOF
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$file5_data
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EOF
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M 755 inline file6
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data <<EOF
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$file6_data
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EOF
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blob
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mark :7
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data <<EOF
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$note1_data
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EOF
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blob
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mark :8
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data <<EOF
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$note2_data
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EOF
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commit refs/notes/foobar
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mark :9
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committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
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data <<COMMIT
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notes (:9)
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COMMIT
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N :7 :3
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N :8 :5
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N inline :6
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data <<EOF
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$note3_data
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EOF
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INPUT_END
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test_expect_success \
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'Q: commit notes' \
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'git fast-import <input &&
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git whatchanged notes-test'
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test_expect_success \
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'Q: verify pack' \
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'for p in .git/objects/pack/*.pack;do git verify-pack $p||exit;done'
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commit1=$(git rev-parse notes-test~2)
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commit2=$(git rev-parse notes-test^)
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commit3=$(git rev-parse notes-test)
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cat >expect <<EOF
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author $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
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committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
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first (:3)
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EOF
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test_expect_success \
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'Q: verify first commit' \
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'git cat-file commit notes-test~2 | sed 1d >actual &&
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test_cmp expect actual'
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cat >expect <<EOF
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parent $commit1
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author $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
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committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
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second (:5)
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EOF
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test_expect_success \
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'Q: verify second commit' \
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'git cat-file commit notes-test^ | sed 1d >actual &&
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test_cmp expect actual'
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cat >expect <<EOF
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parent $commit2
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author $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
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committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
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third (:6)
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EOF
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test_expect_success \
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'Q: verify third commit' \
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'git cat-file commit notes-test | sed 1d >actual &&
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test_cmp expect actual'
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cat >expect <<EOF
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author $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
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committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
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notes (:9)
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EOF
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test_expect_success \
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'Q: verify notes commit' \
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'git cat-file commit refs/notes/foobar | sed 1d >actual &&
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test_cmp expect actual'
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cat >expect.unsorted <<EOF
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100644 blob $commit1
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100644 blob $commit2
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100644 blob $commit3
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EOF
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cat expect.unsorted | sort >expect
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test_expect_success \
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'Q: verify notes tree' \
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'git cat-file -p refs/notes/foobar^{tree} | sed "s/ [0-9a-f]* / /" >actual &&
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test_cmp expect actual'
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echo "$note1_data" >expect
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test_expect_success \
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'Q: verify note for first commit' \
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'git cat-file blob refs/notes/foobar:$commit1 >actual && test_cmp expect actual'
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echo "$note2_data" >expect
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test_expect_success \
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'Q: verify note for second commit' \
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'git cat-file blob refs/notes/foobar:$commit2 >actual && test_cmp expect actual'
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echo "$note3_data" >expect
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test_expect_success \
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'Q: verify note for third commit' \
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'git cat-file blob refs/notes/foobar:$commit3 >actual && test_cmp expect actual'
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test_done
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