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Normally parse_pathspec() is used on command line arguments where it can do fancy thing like parsing magic on each argument or adding magic for all pathspecs based on --*-pathspecs options. There's another use of parse_pathspec(), where pathspec is needed, but the input is known to be pure paths. In this case we usually don't want --*-pathspecs to interfere. And we definitely do not want to parse magic in these paths, regardless of --literal-pathspecs. Add new flag PATHSPEC_LITERAL_PATH for this purpose. When it's set, --*-pathspecs are ignored, no magic is parsed. And if the caller allows PATHSPEC_LITERAL (i.e. the next calls can take literal magic), then PATHSPEC_LITERAL will be set. This fixes cases where git chokes when GIT_*_PATHSPECS are set because parse_pathspec() indicates it won't take any magic. But GIT_*_PATHSPECS add them anyway. These are export GIT_LITERAL_PATHSPECS=1 git blame -- something git log --follow something git log --merge "git ls-files --with-tree=path" (aka parse_pathspec() in overlay_tree_on_cache()) is safe because the input is empty, and producing one pathspec due to PATHSPEC_PREFER_CWD does not take any magic into account. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Acked-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
#ifndef PATHSPEC_H
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#define PATHSPEC_H
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/* Pathspec magic */
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#define PATHSPEC_FROMTOP (1<<0)
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#define PATHSPEC_MAXDEPTH (1<<1)
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#define PATHSPEC_LITERAL (1<<2)
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#define PATHSPEC_GLOB (1<<3)
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#define PATHSPEC_ICASE (1<<4)
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#define PATHSPEC_ALL_MAGIC \
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(PATHSPEC_FROMTOP | \
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PATHSPEC_MAXDEPTH | \
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PATHSPEC_LITERAL | \
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PATHSPEC_GLOB | \
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PATHSPEC_ICASE)
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#define PATHSPEC_ONESTAR 1 /* the pathspec pattern satisfies GFNM_ONESTAR */
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struct pathspec {
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const char **_raw; /* get_pathspec() result, not freed by free_pathspec() */
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int nr;
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unsigned int has_wildcard:1;
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unsigned int recursive:1;
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unsigned magic;
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int max_depth;
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struct pathspec_item {
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const char *match;
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const char *original;
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unsigned magic;
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int len, prefix;
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int nowildcard_len;
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int flags;
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} *items;
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};
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#define GUARD_PATHSPEC(ps, mask) \
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do { \
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if ((ps)->magic & ~(mask)) \
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die("BUG:%s:%d: unsupported magic %x", \
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__FILE__, __LINE__, (ps)->magic & ~(mask)); \
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} while (0)
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/* parse_pathspec flags */
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#define PATHSPEC_PREFER_CWD (1<<0) /* No args means match cwd */
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#define PATHSPEC_PREFER_FULL (1<<1) /* No args means match everything */
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#define PATHSPEC_MAXDEPTH_VALID (1<<2) /* max_depth field is valid */
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/* strip the trailing slash if the given path is a gitlink */
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#define PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP (1<<3)
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/* die if a symlink is part of the given path's directory */
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#define PATHSPEC_SYMLINK_LEADING_PATH (1<<4)
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/*
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* This is like a combination of ..LEADING_PATH and .._SLASH_CHEAP
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* (but not the same): it strips the trailing slash if the given path
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* is a gitlink but also checks and dies if gitlink is part of the
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* leading path (i.e. the given path goes beyond a submodule). It's
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* safer than _SLASH_CHEAP and also more expensive.
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*/
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#define PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE (1<<5)
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#define PATHSPEC_PREFIX_ORIGIN (1<<6)
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#define PATHSPEC_KEEP_ORDER (1<<7)
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/*
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* For the callers that just need pure paths from somewhere else, not
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* from command line. Global --*-pathspecs options are ignored. No
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* magic is parsed in each pathspec either. If PATHSPEC_LITERAL is
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* allowed, then it will automatically set for every pathspec.
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*/
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#define PATHSPEC_LITERAL_PATH (1<<8)
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extern void parse_pathspec(struct pathspec *pathspec,
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unsigned magic_mask,
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unsigned flags,
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const char *prefix,
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const char **args);
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extern void copy_pathspec(struct pathspec *dst, const struct pathspec *src);
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extern void free_pathspec(struct pathspec *);
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static inline int ps_strncmp(const struct pathspec_item *item,
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const char *s1, const char *s2, size_t n)
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{
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if (item->magic & PATHSPEC_ICASE)
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return strncasecmp(s1, s2, n);
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else
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return strncmp(s1, s2, n);
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}
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static inline int ps_strcmp(const struct pathspec_item *item,
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const char *s1, const char *s2)
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{
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if (item->magic & PATHSPEC_ICASE)
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return strcasecmp(s1, s2);
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else
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return strcmp(s1, s2);
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}
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extern char *find_pathspecs_matching_against_index(const struct pathspec *pathspec);
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extern void add_pathspec_matches_against_index(const struct pathspec *pathspec, char *seen);
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extern const char *check_path_for_gitlink(const char *path);
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extern void die_if_path_beyond_symlink(const char *path, const char *prefix);
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#endif /* PATHSPEC_H */
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