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83ad63cfeb
The Porcelainish has become so much usable as the UI that there
is not much reason people should be using the core programs by
hand anymore. At this point we are better off making the
behaviour of the core programs predictable by keeping them
unaffected by the configuration variables. Otherwise they will
become very hard to use as reliable building blocks.
For example, "git-commit -a" internally uses git-diff-files to
figure out the set of paths that need to be updated in the
index, and we should never allow diff.renames that happens to be
in the configuration to interfere (or slow down the process).
The UI level configuration such as showing renamed diff and
coloring are still honored by the Porcelainish ("git log" family
and "git diff"), but not by the core anymore.
Signed-off-by: Junio C Hamano <junkio@cox.net>
196 lines
5.8 KiB
C
196 lines
5.8 KiB
C
/*
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* Copyright (C) 2005 Junio C Hamano
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*/
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#ifndef DIFF_H
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#define DIFF_H
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#include "tree-walk.h"
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struct rev_info;
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struct diff_options;
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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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#define DIFF_FORMAT_RAW 0x0001
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#define DIFF_FORMAT_DIFFSTAT 0x0002
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#define DIFF_FORMAT_SUMMARY 0x0004
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#define DIFF_FORMAT_PATCH 0x0008
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/* These override all above */
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#define DIFF_FORMAT_NAME 0x0010
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#define DIFF_FORMAT_NAME_STATUS 0x0020
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#define DIFF_FORMAT_CHECKDIFF 0x0040
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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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#define DIFF_FORMAT_NO_OUTPUT 0x0080
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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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unsigned recursive:1,
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tree_in_recursive:1,
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binary:1,
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text:1,
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full_index:1,
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silent_on_remove:1,
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find_copies_harder:1,
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color_diff:1;
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int context;
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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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int rename_limit;
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int setup;
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int abbrev;
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const char *msg_sep;
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const char *stat_sep;
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long xdl_opts;
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int nr_paths;
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const char **paths;
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int *pathlens;
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change_fn_t change;
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add_remove_fn_t add_remove;
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};
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extern const char mime_boundary_leader[];
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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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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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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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unsigned int mode;
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unsigned char sha1[20];
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struct combine_diff_parent {
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char status;
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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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};
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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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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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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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extern void diff_tree_combined_merge(const unsigned char *sha1, int, struct rev_info *);
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extern void diff_addremove(struct diff_options *,
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int addremove,
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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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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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extern void diff_unmerge(struct diff_options *,
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const char *path);
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extern int diff_scoreopt_parse(const char *opt);
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#define DIFF_SETUP_REVERSE 1
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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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extern int git_diff_ui_config(const char *var, const char *value);
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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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#define DIFF_DETECT_RENAME 1
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#define DIFF_DETECT_COPY 2
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#define DIFF_PICKAXE_ALL 1
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#define DIFF_PICKAXE_REGEX 2
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extern void diffcore_std(struct diff_options *);
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extern void diffcore_std_no_resolve(struct diff_options *);
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#define COMMON_DIFF_OPTIONS_HELP \
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"\ncommon diff options:\n" \
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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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" --patch-with-raw\n" \
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" output both a patch and the diff-raw format.\n" \
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" --stat show diffstat instead of patch.\n" \
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" --patch-with-stat\n" \
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" output a patch and prepend its diffstat.\n" \
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" --name-only show only names of changed files.\n" \
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" --name-status show names and status of changed files.\n" \
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" --full-index show full object name on index lines.\n" \
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" --abbrev=<n> abbreviate object names in diff-tree header and diff-raw.\n" \
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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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" --find-copies-harder\n" \
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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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" --pickaxe-all\n" \
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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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extern int diff_queue_is_empty(void);
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extern void diff_flush(struct diff_options*);
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/* diff-raw status letters */
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#define DIFF_STATUS_ADDED 'A'
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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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#define DIFF_STATUS_FILTER_AON '*'
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#define DIFF_STATUS_FILTER_BROKEN 'B'
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extern const char *diff_unique_abbrev(const unsigned char *, int);
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extern int run_diff_files(struct rev_info *revs, int silent_on_removed);
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extern int run_diff_index(struct rev_info *revs, int cached);
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extern int diff_flush_patch_id(struct diff_options *, unsigned char *);
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#endif /* DIFF_H */
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