|
|
|
|
/*
|
|
|
|
|
* Copyright (C) 2005 Junio C Hamano
|
|
|
|
|
*/
|
|
|
|
|
#ifndef DIFF_H
|
|
|
|
|
#define DIFF_H
|
|
|
|
|
|
|
|
|
|
#include "tree-walk.h"
|
|
|
|
|
|
|
|
|
|
struct diff_options;
|
|
|
|
|
|
|
|
|
|
typedef void (*change_fn_t)(struct diff_options *options,
|
|
|
|
|
unsigned old_mode, unsigned new_mode,
|
|
|
|
|
const unsigned char *old_sha1,
|
|
|
|
|
const unsigned char *new_sha1,
|
|
|
|
|
const char *base, const char *path);
|
|
|
|
|
|
|
|
|
|
typedef void (*add_remove_fn_t)(struct diff_options *options,
|
|
|
|
|
int addremove, unsigned mode,
|
|
|
|
|
const unsigned char *sha1,
|
|
|
|
|
const char *base, const char *path);
|
|
|
|
|
|
|
|
|
|
struct diff_options {
|
|
|
|
|
const char **paths;
|
|
|
|
|
const char *filter;
|
|
|
|
|
const char *orderfile;
|
|
|
|
|
const char *pickaxe;
|
|
|
|
|
unsigned recursive:1,
|
|
|
|
|
tree_in_recursive:1,
|
|
|
|
|
full_index:1;
|
|
|
|
|
int break_opt;
|
|
|
|
|
int detect_rename;
|
|
|
|
|
int find_copies_harder;
|
|
|
|
|
int line_termination;
|
|
|
|
|
int output_format;
|
|
|
|
|
int pickaxe_opts;
|
|
|
|
|
int rename_score;
|
|
|
|
|
int reverse_diff;
|
|
|
|
|
int rename_limit;
|
|
|
|
|
int setup;
|
|
|
|
|
int abbrev;
|
|
|
|
|
|
|
|
|
|
change_fn_t change;
|
|
|
|
|
add_remove_fn_t add_remove;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
extern void diff_tree_setup_paths(const char **paths);
|
|
|
|
|
extern int diff_tree(struct tree_desc *t1, struct tree_desc *t2,
|
|
|
|
|
const char *base, struct diff_options *opt);
|
|
|
|
|
extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new,
|
|
|
|
|
const char *base, struct diff_options *opt);
|
|
|
|
|
|
|
|
|
|
struct combine_diff_path {
|
|
|
|
|
struct combine_diff_path *next;
|
|
|
|
|
int len;
|
|
|
|
|
char *path;
|
|
|
|
|
unsigned int mode;
|
|
|
|
|
unsigned char sha1[20];
|
|
|
|
|
struct combine_diff_parent {
|
|
|
|
|
char status;
|
|
|
|
|
unsigned int mode;
|
|
|
|
|
unsigned char sha1[20];
|
|
|
|
|
} parent[FLEX_ARRAY];
|
|
|
|
|
};
|
|
|
|
|
#define combine_diff_path_size(n, l) \
|
|
|
|
|
(sizeof(struct combine_diff_path) + \
|
|
|
|
|
sizeof(struct combine_diff_parent) * (n) + (l) + 1)
|
|
|
|
|
|
diff-tree -c raw output
NOTE! This makes "-c" be the default, which effectively means that merges
are never ignored any more, and "-m" is a no-op. So it changes semantics.
I would also like to make "--cc" the default if you do patches, but didn't
actually do that.
The raw output format is not wonderfully pretty, but it's distinguishable
from a "normal patch" in that a normal patch with just one parent has just
one colon at the beginning, while a multi-parent raw diff has <n> colons
for <n> parents.
So now, in the kernel, when you do
git-diff-tree cce0cac125623f9b68f25dd1350f6d616220a8dd
(to see the manual ARM merge that had a conflict in arch/arm/Kconfig), you
get
cce0cac125623f9b68f25dd1350f6d616220a8dd
::100644 100644 100644 4a63a8e2e45247a11c068c6ed66c6e7aba29ddd9 77eee38762d69d3de95ae45dd9278df9b8225e2c 2f61726d2f4b636f6e66696700dbf71a59dad287 arch/arm/Kconfig
ie you see two colons (two parents), then three modes (parent modes
followed by result mode), then three sha1s (parent sha1s followed by
result sha1).
Which is pretty close to the normal raw diff output.
Cool/stupid exercise:
$ git-whatchanged | grep '^::' | cut -f2- | sort |
uniq -c | sort -n | less -S
will show which files have needed the most file-level merge conflict
resolution. Useful? Probably not. But kind of interesting.
For the kernel, it's
....
10 arch/ia64/Kconfig
11 drivers/scsi/Kconfig
12 drivers/net/Makefile
17 include/linux/libata.h
18 include/linux/pci_ids.h
23 drivers/net/Kconfig
24 drivers/scsi/libata-scsi.c
28 drivers/scsi/libata-core.c
43 MAINTAINERS
Signed-off-by: Junio C Hamano <junkio@cox.net>
19 years ago
|
|
|
extern int show_combined_diff(struct combine_diff_path *elem, int num_parent,
|
|
|
|
|
int dense, const char *header,
|
|
|
|
|
struct diff_options *);
|
|
|
|
|
|
diff-tree -c raw output
NOTE! This makes "-c" be the default, which effectively means that merges
are never ignored any more, and "-m" is a no-op. So it changes semantics.
I would also like to make "--cc" the default if you do patches, but didn't
actually do that.
The raw output format is not wonderfully pretty, but it's distinguishable
from a "normal patch" in that a normal patch with just one parent has just
one colon at the beginning, while a multi-parent raw diff has <n> colons
for <n> parents.
So now, in the kernel, when you do
git-diff-tree cce0cac125623f9b68f25dd1350f6d616220a8dd
(to see the manual ARM merge that had a conflict in arch/arm/Kconfig), you
get
cce0cac125623f9b68f25dd1350f6d616220a8dd
::100644 100644 100644 4a63a8e2e45247a11c068c6ed66c6e7aba29ddd9 77eee38762d69d3de95ae45dd9278df9b8225e2c 2f61726d2f4b636f6e66696700dbf71a59dad287 arch/arm/Kconfig
ie you see two colons (two parents), then three modes (parent modes
followed by result mode), then three sha1s (parent sha1s followed by
result sha1).
Which is pretty close to the normal raw diff output.
Cool/stupid exercise:
$ git-whatchanged | grep '^::' | cut -f2- | sort |
uniq -c | sort -n | less -S
will show which files have needed the most file-level merge conflict
resolution. Useful? Probably not. But kind of interesting.
For the kernel, it's
....
10 arch/ia64/Kconfig
11 drivers/scsi/Kconfig
12 drivers/net/Makefile
17 include/linux/libata.h
18 include/linux/pci_ids.h
23 drivers/net/Kconfig
24 drivers/scsi/libata-scsi.c
28 drivers/scsi/libata-core.c
43 MAINTAINERS
Signed-off-by: Junio C Hamano <junkio@cox.net>
19 years ago
|
|
|
extern const char *diff_tree_combined_merge(const unsigned char *sha1, const char *, int, struct diff_options *opt);
|
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>
19 years ago
|
|
|
|
|
|
|
|
extern void diff_addremove(struct diff_options *,
|
|
|
|
|
int addremove,
|
|
|
|
|
unsigned mode,
|
|
|
|
|
const unsigned char *sha1,
|
|
|
|
|
const char *base,
|
|
|
|
|
const char *path);
|
|
|
|
|
|
|
|
|
|
extern void diff_change(struct diff_options *,
|
|
|
|
|
unsigned mode1, unsigned mode2,
|
|
|
|
|
const unsigned char *sha1,
|
|
|
|
|
const unsigned char *sha2,
|
|
|
|
|
const char *base, const char *path);
|
|
|
|
|
|
|
|
|
|
extern void diff_unmerge(struct diff_options *,
|
|
|
|
|
const char *path);
|
|
|
|
|
|
|
|
|
|
extern int diff_scoreopt_parse(const char *opt);
|
|
|
|
|
|
|
|
|
|
#define DIFF_SETUP_REVERSE 1
|
|
|
|
|
#define DIFF_SETUP_USE_CACHE 2
|
|
|
|
|
#define DIFF_SETUP_USE_SIZE_CACHE 4
|
|
|
|
|
|
|
|
|
|
extern int git_diff_config(const char *var, const char *value);
|
|
|
|
|
extern void diff_setup(struct diff_options *);
|
|
|
|
|
extern int diff_opt_parse(struct diff_options *, const char **, int);
|
|
|
|
|
extern int diff_setup_done(struct diff_options *);
|
|
|
|
|
|
|
|
|
|
#define DIFF_DETECT_RENAME 1
|
|
|
|
|
#define DIFF_DETECT_COPY 2
|
|
|
|
|
|
|
|
|
|
#define DIFF_PICKAXE_ALL 1
|
|
|
|
|
#define DIFF_PICKAXE_REGEX 2
|
[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>
20 years ago
|
|
|
|
|
|
|
|
extern void diffcore_std(struct diff_options *);
|
|
|
|
|
|
|
|
|
|
extern void diffcore_std_no_resolve(struct diff_options *);
|
|
|
|
|
|
|
|
|
|
#define COMMON_DIFF_OPTIONS_HELP \
|
|
|
|
|
"\ncommon diff options:\n" \
|
|
|
|
|
" -z output diff-raw with lines terminated with NUL.\n" \
|
|
|
|
|
" -p output patch format.\n" \
|
|
|
|
|
" -u synonym for -p.\n" \
|
|
|
|
|
" --name-only show only names of changed files.\n" \
|
|
|
|
|
" --name-status show names and status of changed files.\n" \
|
|
|
|
|
" --full-index show full object name on index lines.\n" \
|
|
|
|
|
" --abbrev=<n> abbreviate object names in diff-tree header and diff-raw.\n" \
|
|
|
|
|
" -R swap input file pairs.\n" \
|
|
|
|
|
" -B detect complete rewrites.\n" \
|
|
|
|
|
" -M detect renames.\n" \
|
|
|
|
|
" -C detect copies.\n" \
|
|
|
|
|
" --find-copies-harder\n" \
|
|
|
|
|
" try unchanged files as candidate for copy detection.\n" \
|
|
|
|
|
" -l<n> limit rename attempts up to <n> paths.\n" \
|
|
|
|
|
" -O<file> reorder diffs according to the <file>.\n" \
|
|
|
|
|
" -S<string> find filepair whose only one side contains the string.\n" \
|
|
|
|
|
" --pickaxe-all\n" \
|
|
|
|
|
" show all files diff when -S is used and hit is found.\n"
|
|
|
|
|
|
|
|
|
|
extern int diff_queue_is_empty(void);
|
|
|
|
|
|
|
|
|
|
#define DIFF_FORMAT_RAW 1
|
|
|
|
|
#define DIFF_FORMAT_PATCH 2
|
|
|
|
|
#define DIFF_FORMAT_NO_OUTPUT 3
|
|
|
|
|
#define DIFF_FORMAT_NAME 4
|
|
|
|
|
#define DIFF_FORMAT_NAME_STATUS 5
|
|
|
|
|
|
|
|
|
|
extern void diff_flush(struct diff_options*);
|
|
|
|
|
|
|
|
|
|
/* diff-raw status letters */
|
|
|
|
|
#define DIFF_STATUS_ADDED 'A'
|
|
|
|
|
#define DIFF_STATUS_COPIED 'C'
|
|
|
|
|
#define DIFF_STATUS_DELETED 'D'
|
|
|
|
|
#define DIFF_STATUS_MODIFIED 'M'
|
|
|
|
|
#define DIFF_STATUS_RENAMED 'R'
|
|
|
|
|
#define DIFF_STATUS_TYPE_CHANGED 'T'
|
|
|
|
|
#define DIFF_STATUS_UNKNOWN 'X'
|
|
|
|
|
#define DIFF_STATUS_UNMERGED 'U'
|
|
|
|
|
|
|
|
|
|
/* these are not diff-raw status letters proper, but used by
|
|
|
|
|
* diffcore-filter insn to specify additional restrictions.
|
|
|
|
|
*/
|
|
|
|
|
#define DIFF_STATUS_FILTER_AON '*'
|
|
|
|
|
#define DIFF_STATUS_FILTER_BROKEN 'B'
|
|
|
|
|
|
|
|
|
|
extern const char *diff_unique_abbrev(const unsigned char *, int);
|
|
|
|
|
|
|
|
|
|
#endif /* DIFF_H */
|
