2005-04-27 00:25:05 +08:00
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/*
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* Copyright (C) 2005 Junio C Hamano
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*/
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2005-04-26 09:22:47 +08:00
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#ifndef DIFF_H
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#define DIFF_H
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2006-03-30 14:55:43 +08:00
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#include "tree-walk.h"
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2006-02-01 06:10:56 +08:00
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Log message printout cleanups
On Sun, 16 Apr 2006, Junio C Hamano wrote:
>
> In the mid-term, I am hoping we can drop the generate_header()
> callchain _and_ the custom code that formats commit log in-core,
> found in cmd_log_wc().
Ok, this was nastier than expected, just because the dependencies between
the different log-printing stuff were absolutely _everywhere_, but here's
a patch that does exactly that.
The patch is not very easy to read, and the "--patch-with-stat" thing is
still broken (it does not call the "show_log()" thing properly for
merges). That's not a new bug. In the new world order it _should_ do
something like
if (rev->logopt)
show_log(rev, rev->logopt, "---\n");
but it doesn't. I haven't looked at the --with-stat logic, so I left it
alone.
That said, this patch removes more lines than it adds, and in particular,
the "cmd_log_wc()" loop is now a very clean:
while ((commit = get_revision(rev)) != NULL) {
log_tree_commit(rev, commit);
free(commit->buffer);
commit->buffer = NULL;
}
so it doesn't get much prettier than this. All the complexity is entirely
hidden in log-tree.c, and any code that needs to flush the log literally
just needs to do the "if (rev->logopt) show_log(...)" incantation.
I had to make the combined_diff() logic take a "struct rev_info" instead
of just a "struct diff_options", but that part is pretty clean.
This does change "git whatchanged" from using "diff-tree" as the commit
descriptor to "commit", and I changed one of the tests to reflect that new
reality. Otherwise everything still passes, and my other tests look fine
too.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-18 02:59:32 +08:00
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struct rev_info;
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2005-10-21 12:05:05 +08:00
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struct diff_options;
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2006-09-07 14:35:42 +08:00
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struct diff_queue_struct;
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2005-10-21 12:05:05 +08:00
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typedef void (*change_fn_t)(struct diff_options *options,
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unsigned old_mode, unsigned new_mode,
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const unsigned char *old_sha1,
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const unsigned char *new_sha1,
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const char *base, const char *path);
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typedef void (*add_remove_fn_t)(struct diff_options *options,
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int addremove, unsigned mode,
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const unsigned char *sha1,
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const char *base, const char *path);
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2006-09-07 14:35:42 +08:00
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typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
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struct diff_options *options, void *data);
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2006-06-25 01:21:53 +08:00
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#define DIFF_FORMAT_RAW 0x0001
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#define DIFF_FORMAT_DIFFSTAT 0x0002
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2006-10-12 18:01:00 +08:00
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#define DIFF_FORMAT_NUMSTAT 0x0004
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#define DIFF_FORMAT_SUMMARY 0x0008
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#define DIFF_FORMAT_PATCH 0x0010
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2006-06-25 01:21:53 +08:00
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/* These override all above */
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2006-10-12 18:01:00 +08:00
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#define DIFF_FORMAT_NAME 0x0100
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#define DIFF_FORMAT_NAME_STATUS 0x0200
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#define DIFF_FORMAT_CHECKDIFF 0x0400
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2006-06-25 01:21:53 +08:00
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/* Same as output_format = 0 but we know that -s flag was given
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* and we should not give default value to output_format.
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*/
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2006-10-12 18:01:00 +08:00
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#define DIFF_FORMAT_NO_OUTPUT 0x0800
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2006-06-25 01:21:53 +08:00
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2006-10-12 18:01:00 +08:00
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#define DIFF_FORMAT_CALLBACK 0x1000
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2006-09-07 14:35:42 +08:00
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2005-09-21 15:00:47 +08:00
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struct diff_options {
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const char *filter;
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const char *orderfile;
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const char *pickaxe;
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2006-11-02 16:02:11 +08:00
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const char *single_follow;
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2005-10-21 12:05:05 +08:00
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unsigned recursive:1,
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2005-11-15 09:53:22 +08:00
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tree_in_recursive:1,
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2006-05-05 17:41:53 +08:00
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binary:1,
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2006-07-07 18:33:57 +08:00
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text:1,
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2006-04-22 14:57:45 +08:00
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full_index:1,
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silent_on_remove:1,
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2006-05-14 20:13:49 +08:00
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find_copies_harder:1,
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2006-07-29 05:56:15 +08:00
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color_diff:1,
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color_diff_words:1;
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2006-05-14 04:23:48 +08:00
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int context;
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2005-09-21 15:00:47 +08:00
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int break_opt;
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int detect_rename;
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int line_termination;
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int output_format;
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int pickaxe_opts;
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int rename_score;
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int reverse_diff;
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2005-09-21 15:18:27 +08:00
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int rename_limit;
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2005-09-21 15:00:47 +08:00
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int setup;
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2005-12-14 09:21:41 +08:00
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int abbrev;
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2006-06-25 18:54:14 +08:00
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const char *msg_sep;
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2006-05-20 21:40:29 +08:00
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const char *stat_sep;
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2006-06-14 23:40:23 +08:00
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long xdl_opts;
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2005-10-21 12:05:05 +08:00
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2006-09-27 09:53:02 +08:00
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int stat_width;
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int stat_name_width;
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2006-04-11 07:39:11 +08:00
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int nr_paths;
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const char **paths;
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int *pathlens;
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2005-10-21 12:05:05 +08:00
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change_fn_t change;
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add_remove_fn_t add_remove;
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2006-09-07 14:35:42 +08:00
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diff_format_fn_t format_callback;
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void *format_callback_data;
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2005-09-21 15:00:47 +08:00
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};
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2006-07-23 17:24:18 +08:00
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enum color_diff {
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DIFF_RESET = 0,
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DIFF_PLAIN = 1,
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DIFF_METAINFO = 2,
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DIFF_FRAGINFO = 3,
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DIFF_FILE_OLD = 4,
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DIFF_FILE_NEW = 5,
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DIFF_COMMIT = 6,
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2006-09-23 13:48:39 +08:00
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DIFF_WHITESPACE = 7,
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2006-07-23 17:24:18 +08:00
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};
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const char *diff_get_color(int diff_use_color, enum color_diff ix);
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2006-05-20 21:40:29 +08:00
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extern const char mime_boundary_leader[];
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2006-04-11 07:39:11 +08:00
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extern void diff_tree_setup_paths(const char **paths, struct diff_options *);
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extern void diff_tree_release_paths(struct diff_options *);
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2005-10-21 12:05:05 +08:00
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extern int diff_tree(struct tree_desc *t1, struct tree_desc *t2,
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const char *base, struct diff_options *opt);
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extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new,
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const char *base, struct diff_options *opt);
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2006-10-27 00:52:39 +08:00
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extern int diff_root_tree_sha1(const unsigned char *new, const char *base,
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struct diff_options *opt);
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2005-10-21 12:05:05 +08:00
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2006-01-28 16:03:38 +08:00
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struct combine_diff_path {
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struct combine_diff_path *next;
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int len;
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char *path;
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2006-02-07 04:53:07 +08:00
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unsigned int mode;
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2006-01-28 16:03:38 +08:00
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unsigned char sha1[20];
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2006-02-07 04:53:07 +08:00
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struct combine_diff_parent {
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2006-02-10 18:30:52 +08:00
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char status;
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2006-02-07 04:53:07 +08:00
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unsigned int mode;
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unsigned char sha1[20];
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} parent[FLEX_ARRAY];
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2006-01-28 16:03:38 +08:00
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};
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2006-02-07 04:53:07 +08:00
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#define combine_diff_path_size(n, l) \
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(sizeof(struct combine_diff_path) + \
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sizeof(struct combine_diff_parent) * (n) + (l) + 1)
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2006-01-28 16:03:38 +08:00
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Log message printout cleanups
On Sun, 16 Apr 2006, Junio C Hamano wrote:
>
> In the mid-term, I am hoping we can drop the generate_header()
> callchain _and_ the custom code that formats commit log in-core,
> found in cmd_log_wc().
Ok, this was nastier than expected, just because the dependencies between
the different log-printing stuff were absolutely _everywhere_, but here's
a patch that does exactly that.
The patch is not very easy to read, and the "--patch-with-stat" thing is
still broken (it does not call the "show_log()" thing properly for
merges). That's not a new bug. In the new world order it _should_ do
something like
if (rev->logopt)
show_log(rev, rev->logopt, "---\n");
but it doesn't. I haven't looked at the --with-stat logic, so I left it
alone.
That said, this patch removes more lines than it adds, and in particular,
the "cmd_log_wc()" loop is now a very clean:
while ((commit = get_revision(rev)) != NULL) {
log_tree_commit(rev, commit);
free(commit->buffer);
commit->buffer = NULL;
}
so it doesn't get much prettier than this. All the complexity is entirely
hidden in log-tree.c, and any code that needs to flush the log literally
just needs to do the "if (rev->logopt) show_log(...)" incantation.
I had to make the combined_diff() logic take a "struct rev_info" instead
of just a "struct diff_options", but that part is pretty clean.
This does change "git whatchanged" from using "diff-tree" as the commit
descriptor to "commit", and I changed one of the tests to reflect that new
reality. Otherwise everything still passes, and my other tests look fine
too.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-18 02:59:32 +08:00
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extern void show_combined_diff(struct combine_diff_path *elem, int num_parent,
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int dense, struct rev_info *);
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2006-01-28 16:03:38 +08:00
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2006-04-29 16:24:49 +08:00
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extern void diff_tree_combined(const unsigned char *sha1, const unsigned char parent[][20], int num_parent, int dense, struct rev_info *rev);
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Log message printout cleanups
On Sun, 16 Apr 2006, Junio C Hamano wrote:
>
> In the mid-term, I am hoping we can drop the generate_header()
> callchain _and_ the custom code that formats commit log in-core,
> found in cmd_log_wc().
Ok, this was nastier than expected, just because the dependencies between
the different log-printing stuff were absolutely _everywhere_, but here's
a patch that does exactly that.
The patch is not very easy to read, and the "--patch-with-stat" thing is
still broken (it does not call the "show_log()" thing properly for
merges). That's not a new bug. In the new world order it _should_ do
something like
if (rev->logopt)
show_log(rev, rev->logopt, "---\n");
but it doesn't. I haven't looked at the --with-stat logic, so I left it
alone.
That said, this patch removes more lines than it adds, and in particular,
the "cmd_log_wc()" loop is now a very clean:
while ((commit = get_revision(rev)) != NULL) {
log_tree_commit(rev, commit);
free(commit->buffer);
commit->buffer = NULL;
}
so it doesn't get much prettier than this. All the complexity is entirely
hidden in log-tree.c, and any code that needs to flush the log literally
just needs to do the "if (rev->logopt) show_log(...)" incantation.
I had to make the combined_diff() logic take a "struct rev_info" instead
of just a "struct diff_options", but that part is pretty clean.
This does change "git whatchanged" from using "diff-tree" as the commit
descriptor to "commit", and I changed one of the tests to reflect that new
reality. Otherwise everything still passes, and my other tests look fine
too.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-18 02:59:32 +08:00
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extern void diff_tree_combined_merge(const unsigned char *sha1, int, struct rev_info *);
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diff-tree -c: show a merge commit a bit more sensibly.
A new option '-c' to diff-tree changes the way a merge commit is
displayed when generating a patch output. It shows a "combined
diff" (hence the option letter 'c'), which looks like this:
$ git-diff-tree --pretty -c -p fec9ebf1 | head -n 18
diff-tree fec9ebf... (from parents)
Merge: 0620db3... 8a263ae...
Author: Junio C Hamano <junkio@cox.net>
Date: Sun Jan 15 22:25:35 2006 -0800
Merge fixes up to GIT 1.1.3
diff --combined describe.c
@@@ +98,7 @@@
return (a_date > b_date) ? -1 : (a_date == b_date) ? 0 : 1;
}
- static void describe(char *arg)
- static void describe(struct commit *cmit, int last_one)
++ static void describe(char *arg, int last_one)
{
+ unsigned char sha1[20];
+ struct commit *cmit;
There are a few things to note about this feature:
- The '-c' option implies '-p'. It also implies '-m' halfway
in the sense that "interesting" merges are shown, but not all
merges.
- When a blob matches one of the parents, we do not show a diff
for that path at all. For a merge commit, this option shows
paths with real file-level merge (aka "interesting things").
- As a concequence of the above, an "uninteresting" merge is
not shown at all. You can use '-m' in addition to '-c' to
show the commit log for such a merge, but there will be no
combined diff output.
- Unlike "gitk", the output is monochrome.
A '-' character in the nth column means the line is from the nth
parent and does not appear in the merge result (i.e. removed
from that parent's version).
A '+' character in the nth column means the line appears in the
merge result, and the nth parent does not have that line
(i.e. added by the merge itself or inherited from another
parent).
The above example output shows that the function signature was
changed from either parents (hence two "-" lines and a "++"
line), and "unsigned char sha1[20]", prefixed by a " +", was
inherited from the first parent.
The code as sent to the list was buggy in few corner cases,
which I have fixed since then.
It does not bother to keep track of and show the line numbers
from parent commits, which it probably should.
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-01-24 17:22:04 +08:00
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2005-09-21 15:00:47 +08:00
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extern void diff_addremove(struct diff_options *,
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int addremove,
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2005-04-28 00:21:00 +08:00
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unsigned mode,
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const unsigned char *sha1,
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const char *base,
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const char *path);
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2005-09-21 15:00:47 +08:00
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extern void diff_change(struct diff_options *,
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unsigned mode1, unsigned mode2,
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const unsigned char *sha1,
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const unsigned char *sha2,
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const char *base, const char *path);
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2005-04-28 00:21:00 +08:00
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2005-09-21 15:00:47 +08:00
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extern void diff_unmerge(struct diff_options *,
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const char *path);
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2005-04-28 00:21:00 +08:00
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2005-05-20 10:00:36 +08:00
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extern int diff_scoreopt_parse(const char *opt);
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2005-05-28 06:54:37 +08:00
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#define DIFF_SETUP_REVERSE 1
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2005-05-28 06:56:38 +08:00
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#define DIFF_SETUP_USE_CACHE 2
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#define DIFF_SETUP_USE_SIZE_CACHE 4
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2005-06-03 16:36:43 +08:00
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2006-07-08 16:05:16 +08:00
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extern int git_diff_ui_config(const char *var, const char *value);
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2005-09-21 15:00:47 +08:00
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extern void diff_setup(struct diff_options *);
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extern int diff_opt_parse(struct diff_options *, const char **, int);
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extern int diff_setup_done(struct diff_options *);
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2005-04-26 09:22:47 +08:00
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2005-05-23 01:04:37 +08:00
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#define DIFF_DETECT_RENAME 1
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#define DIFF_DETECT_COPY 2
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2005-05-28 06:55:28 +08:00
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#define DIFF_PICKAXE_ALL 1
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2006-03-29 08:16:33 +08:00
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#define DIFF_PICKAXE_REGEX 2
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[PATCH] Add -B flag to diff-* brothers.
A new diffcore transformation, diffcore-break.c, is introduced.
When the -B flag is given, a patch that represents a complete
rewrite is broken into a deletion followed by a creation. This
makes it easier to review such a complete rewrite patch.
The -B flag takes the same syntax as the -M and -C flags to
specify the minimum amount of non-source material the resulting
file needs to have to be considered a complete rewrite, and
defaults to 99% if not specified.
As the new test t4008-diff-break-rewrite.sh demonstrates, if a
file is a complete rewrite, it is broken into a delete/create
pair, which can further be subjected to the usual rename
detection if -M or -C is used. For example, if file0 gets
completely rewritten to make it as if it were rather based on
file1 which itself disappeared, the following happens:
The original change looks like this:
file0 --> file0' (quite different from file0)
file1 --> /dev/null
After diffcore-break runs, it would become this:
file0 --> /dev/null
/dev/null --> file0'
file1 --> /dev/null
Then diffcore-rename matches them up:
file1 --> file0'
The internal score values are finer grained now. Earlier
maximum of 10000 has been raised to 60000; there is no user
visible changes but there is no reason to waste available bits.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-30 15:08:37 +08:00
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2005-09-21 15:00:47 +08:00
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extern void diffcore_std(struct diff_options *);
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2005-06-12 11:57:13 +08:00
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2005-09-21 15:00:47 +08:00
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extern void diffcore_std_no_resolve(struct diff_options *);
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2005-05-30 07:56:13 +08:00
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2005-07-14 03:52:35 +08:00
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#define COMMON_DIFF_OPTIONS_HELP \
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"\ncommon diff options:\n" \
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2005-09-21 15:18:27 +08:00
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" -z output diff-raw with lines terminated with NUL.\n" \
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" -p output patch format.\n" \
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" -u synonym for -p.\n" \
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2006-04-11 19:22:17 +08:00
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" --patch-with-raw\n" \
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" output both a patch and the diff-raw format.\n" \
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2006-04-14 06:15:30 +08:00
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" --stat show diffstat instead of patch.\n" \
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2006-10-12 18:01:00 +08:00
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" --numstat show numeric diffstat instead of patch.\n" \
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2006-04-15 19:41:18 +08:00
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" --patch-with-stat\n" \
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" output a patch and prepend its diffstat.\n" \
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2005-09-21 15:18:27 +08:00
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" --name-only show only names of changed files.\n" \
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2005-09-21 15:20:06 +08:00
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" --name-status show names and status of changed files.\n" \
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2005-12-14 09:21:41 +08:00
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" --full-index show full object name on index lines.\n" \
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2005-12-18 18:03:15 +08:00
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" --abbrev=<n> abbreviate object names in diff-tree header and diff-raw.\n" \
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2005-09-21 15:18:27 +08:00
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" -R swap input file pairs.\n" \
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" -B detect complete rewrites.\n" \
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" -M detect renames.\n" \
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" -C detect copies.\n" \
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2005-07-14 03:52:35 +08:00
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" --find-copies-harder\n" \
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2005-09-21 15:18:27 +08:00
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" try unchanged files as candidate for copy detection.\n" \
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" -l<n> limit rename attempts up to <n> paths.\n" \
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" -O<file> reorder diffs according to the <file>.\n" \
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" -S<string> find filepair whose only one side contains the string.\n" \
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2005-07-14 03:52:35 +08:00
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" --pickaxe-all\n" \
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2006-07-07 21:57:08 +08:00
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" show all files diff when -S is used and hit is found.\n" \
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" -a --text treat all files as text.\n"
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2005-07-14 03:52:35 +08:00
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2005-05-22 10:40:36 +08:00
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extern int diff_queue_is_empty(void);
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2005-09-21 15:00:47 +08:00
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extern void diff_flush(struct diff_options*);
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2005-04-26 09:22:47 +08:00
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2005-07-26 04:05:44 +08:00
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/* diff-raw status letters */
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2005-07-26 05:31:19 +08:00
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#define DIFF_STATUS_ADDED 'A'
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2005-07-26 04:05:44 +08:00
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#define DIFF_STATUS_COPIED 'C'
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#define DIFF_STATUS_DELETED 'D'
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#define DIFF_STATUS_MODIFIED 'M'
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#define DIFF_STATUS_RENAMED 'R'
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#define DIFF_STATUS_TYPE_CHANGED 'T'
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#define DIFF_STATUS_UNKNOWN 'X'
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#define DIFF_STATUS_UNMERGED 'U'
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/* these are not diff-raw status letters proper, but used by
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* diffcore-filter insn to specify additional restrictions.
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*/
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2005-10-05 08:44:17 +08:00
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#define DIFF_STATUS_FILTER_AON '*'
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2005-07-26 04:05:44 +08:00
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#define DIFF_STATUS_FILTER_BROKEN 'B'
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2005-12-14 09:21:41 +08:00
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extern const char *diff_unique_abbrev(const unsigned char *, int);
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2006-04-22 14:57:45 +08:00
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extern int run_diff_files(struct rev_info *revs, int silent_on_removed);
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2006-04-22 18:58:04 +08:00
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extern int run_diff_index(struct rev_info *revs, int cached);
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2006-04-22 17:43:00 +08:00
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2006-06-25 09:51:08 +08:00
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extern int diff_flush_patch_id(struct diff_options *, unsigned char *);
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2005-04-26 09:22:47 +08:00
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#endif /* DIFF_H */
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