src/util/path.h
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #ifndef UTIL_PATH_H | ||
| 2 | #define UTIL_PATH_H | ||
| 3 | |||
| 4 | #include <stdbool.h> | ||
| 5 | #include <stddef.h> | ||
| 6 | #include <string.h> | ||
| 7 | #include "debug.h" | ||
| 8 | #include "macros.h" | ||
| 9 | #include "string-view.h" | ||
| 10 | #include "xmalloc.h" | ||
| 11 | |||
| 12 | NONNULL_ARGS | ||
| 13 | 325 | static inline bool path_is_absolute(const char *path) | |
| 14 | { | ||
| 15 | 325 | return path[0] == '/'; | |
| 16 | } | ||
| 17 | |||
| 18 | // filename must not contain trailing slashes (but it can be "/") | ||
| 19 | NONNULL_ARGS_AND_RETURN | ||
| 20 | 404 | static inline const char *path_basename(const char *filename) | |
| 21 | { | ||
| 22 | 404 | const char *slash = strrchr(filename, '/'); | |
| 23 |
2/2✓ Branch 2 → 3 taken 278 times.
✓ Branch 2 → 4 taken 126 times.
|
404 | return slash ? slash + 1 : filename; |
| 24 | } | ||
| 25 | |||
| 26 | NONNULL_ARGS | ||
| 27 | 75 | static inline StringView path_slice_dirname(const char *filename) | |
| 28 | { | ||
| 29 | 75 | const char *slash = strrchr(filename, '/'); | |
| 30 |
2/2✓ Branch 2 → 3 taken 11 times.
✓ Branch 2 → 4 taken 64 times.
|
75 | if (!slash) { |
| 31 | 11 | return strview("."); | |
| 32 | } | ||
| 33 | 64 | bool slash_is_root_dir = (slash == filename); | |
| 34 |
2/2✓ Branch 4 → 5 taken 62 times.
✓ Branch 4 → 6 taken 2 times.
|
64 | return string_view(filename, slash_is_root_dir ? 1 : slash - filename); |
| 35 | } | ||
| 36 | |||
| 37 | XSTRDUP | ||
| 38 | 50 | static inline char *path_dirname(const char *filename) | |
| 39 | { | ||
| 40 | 50 | const StringView dir = path_slice_dirname(filename); | |
| 41 | 50 | return xstrcut(dir.data, dir.length); | |
| 42 | } | ||
| 43 | |||
| 44 | 122 | static inline char *path_join_sv(StringView s1, StringView s2, bool trailing_slash) | |
| 45 | { | ||
| 46 | 122 | const char slash[2] = "/"; | |
| 47 | 122 | size_t n1 = s1.length; | |
| 48 | 122 | size_t n2 = s2.length; | |
| 49 |
4/4✓ Branch 2 → 3 taken 110 times.
✓ Branch 2 → 4 taken 12 times.
✓ Branch 3 → 4 taken 5 times.
✓ Branch 3 → 5 taken 105 times.
|
122 | size_t sep = n1 && n2 && s1.data[n1 - 1] != '/'; // Separating slash length (1 or 0) |
| 50 |
4/4✓ Branch 5 → 6 taken 4 times.
✓ Branch 5 → 7 taken 118 times.
✓ Branch 6 → 7 taken 1 time.
✓ Branch 6 → 8 taken 3 times.
|
122 | size_t ts = trailing_slash && n2 && s2.data[n2 - 1] != '/'; // Trailing slash length (1 or 0) |
| 51 | 122 | return xmemjoin4(s1.data, n1, slash, sep, s2.data, n2, slash + !ts, ts + 1); | |
| 52 | } | ||
| 53 | |||
| 54 | 60 | static inline char *path_join(const char *s1, const char *s2) | |
| 55 | { | ||
| 56 | 60 | return path_join_sv(strview(s1), strview(s2), false); | |
| 57 | } | ||
| 58 | |||
| 59 | // If path is the root directory, return false. Otherwise, mutate the | ||
| 60 | // path argument to become its parent directory and return true. Note | ||
| 61 | // that path *must* be canonical (i.e. as returned by path_absolute()). | ||
| 62 | 11 | static inline bool path_parent(StringView *path) | |
| 63 | { | ||
| 64 | 11 | BUG_ON(!strview_has_prefix(*path, "/")); | |
| 65 |
2/2✓ Branch 5 → 6 taken 9 times.
✓ Branch 5 → 14 taken 2 times.
|
11 | if (unlikely(path->length == 1)) { |
| 66 | return false; // Root dir | ||
| 67 | } | ||
| 68 | |||
| 69 | // Remove up to 1 trailing slash | ||
| 70 |
2/2✓ Branch 7 → 8 taken 1 time.
✓ Branch 7 → 11 taken 8 times.
|
9 | if (unlikely(strview_remove_matching_suffix(path, "/"))) { |
| 71 | 1 | BUG_ON(strview_has_suffix(*path, "/")); | |
| 72 | } | ||
| 73 | |||
| 74 | // Adjust the length, to exclude the last path component | ||
| 75 | 9 | ssize_t slash_idx = strview_memrchr_idx(*path, '/'); | |
| 76 | 9 | BUG_ON(slash_idx < 0); | |
| 77 | 9 | path->length = MAX(slash_idx, 1); // Shortest valid path is "/" | |
| 78 | 9 | return true; | |
| 79 | } | ||
| 80 | |||
| 81 | char *path_absolute(const char *path) MALLOC NONNULL_ARGS; | ||
| 82 | char *path_relative(const char *absolute, const char *cwd) XSTRDUP; | ||
| 83 | char *short_filename(const char *absolute, StringView home_dir) XSTRDUP; | ||
| 84 | char *short_filename_cwd(const char *absolute, const char *cwd, StringView home_dir) XSTRDUP; | ||
| 85 | const char *path_slice_relative(const char *abs, const char *cwd) NONNULL_ARGS RETURNS_NONNULL; | ||
| 86 | |||
| 87 | #endif | ||
| 88 |