diff options
Diffstat (limited to 'git-compat-util.h')
| -rw-r--r-- | git-compat-util.h | 118 |
1 files changed, 101 insertions, 17 deletions
diff --git a/git-compat-util.h b/git-compat-util.h index e6a4159a25..4e7e3f8726 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -264,15 +264,35 @@ extern char *gitbasename(char *); #endif #ifndef has_dos_drive_prefix -#define has_dos_drive_prefix(path) 0 +static inline int git_has_dos_drive_prefix(const char *path) +{ + return 0; +} +#define has_dos_drive_prefix git_has_dos_drive_prefix #endif #ifndef is_dir_sep -#define is_dir_sep(c) ((c) == '/') +static inline int git_is_dir_sep(int c) +{ + return c == '/'; +} +#define is_dir_sep git_is_dir_sep +#endif + +#ifndef offset_1st_component +static inline int git_offset_1st_component(const char *path) +{ + return is_dir_sep(path[0]); +} +#define offset_1st_component git_offset_1st_component #endif #ifndef find_last_dir_sep -#define find_last_dir_sep(path) strrchr(path, '/') +static inline char *git_find_last_dir_sep(const char *path) +{ + return strrchr(path, '/'); +} +#define find_last_dir_sep git_find_last_dir_sep #endif #if defined(__HP_cc) && (__HP_cc >= 61000) @@ -287,10 +307,12 @@ extern char *gitbasename(char *); #else #define NORETURN #define NORETURN_PTR +#ifndef __GNUC__ #ifndef __attribute__ #define __attribute__(x) #endif #endif +#endif /* The sentinel attribute is valid from gcc version 4.0 */ #if defined(__GNUC__) && (__GNUC__ >= 4) @@ -330,8 +352,12 @@ extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2))) * trying to help gcc, anyway, it's OK; other compilers will fall back to * using the function as usual. */ -#if defined(__GNUC__) && ! defined(__clang__) -#define error(...) (error(__VA_ARGS__), -1) +#if defined(__GNUC__) +static inline int const_error(void) +{ + return -1; +} +#define error(...) (error(__VA_ARGS__), const_error()) #endif extern void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params)); @@ -339,15 +365,66 @@ extern void set_error_routine(void (*routine)(const char *err, va_list params)); extern void set_die_is_recursing_routine(int (*routine)(void)); extern int starts_with(const char *str, const char *prefix); -extern int ends_with(const char *str, const char *suffix); -static inline const char *skip_prefix(const char *str, const char *prefix) +/* + * If the string "str" begins with the string found in "prefix", return 1. + * The "out" parameter is set to "str + strlen(prefix)" (i.e., to the point in + * the string right after the prefix). + * + * Otherwise, return 0 and leave "out" untouched. + * + * Examples: + * + * [extract branch name, fail if not a branch] + * if (!skip_prefix(ref, "refs/heads/", &branch) + * return -1; + * + * [skip prefix if present, otherwise use whole string] + * skip_prefix(name, "refs/heads/", &name); + */ +static inline int skip_prefix(const char *str, const char *prefix, + const char **out) { do { - if (!*prefix) - return str; + if (!*prefix) { + *out = str; + return 1; + } } while (*str++ == *prefix++); - return NULL; + return 0; +} + +/* + * If buf ends with suffix, return 1 and subtract the length of the suffix + * from *len. Otherwise, return 0 and leave *len untouched. + */ +static inline int strip_suffix_mem(const char *buf, size_t *len, + const char *suffix) +{ + size_t suflen = strlen(suffix); + if (*len < suflen || memcmp(buf + (*len - suflen), suffix, suflen)) + return 0; + *len -= suflen; + return 1; +} + +/* + * If str ends with suffix, return 1 and set *len to the size of the string + * without the suffix. Otherwise, return 0 and set *len to the size of the + * string. + * + * Note that we do _not_ NUL-terminate str to the new length. + */ +static inline int strip_suffix(const char *str, const char *suffix, size_t *len) +{ + *len = strlen(str); + return strip_suffix_mem(str, len, suffix); +} + +static inline int ends_with(const char *str, const char *suffix) +{ + size_t len; + return strip_suffix(str, suffix, &len); } #if defined(NO_MMAP) || defined(USE_WIN32_MMAP) @@ -521,9 +598,18 @@ extern void release_pack_memory(size_t); typedef void (*try_to_free_t)(size_t); extern try_to_free_t set_try_to_free_routine(try_to_free_t); +#ifdef HAVE_ALLOCA_H +# include <alloca.h> +# define xalloca(size) (alloca(size)) +# define xalloca_free(p) do {} while (0) +#else +# define xalloca(size) (xmalloc(size)) +# define xalloca_free(p) (free(p)) +#endif extern char *xstrdup(const char *str); extern void *xmalloc(size_t size); extern void *xmallocz(size_t size); +extern void *xmallocz_gently(size_t size); extern void *xmemdupz(const void *data, size_t len); extern char *xstrndup(const char *str, size_t len); extern void *xrealloc(void *ptr, size_t size); @@ -538,6 +624,7 @@ extern int xmkstemp(char *template); extern int xmkstemp_mode(char *template, int mode); extern int odb_mkstemp(char *template, size_t limit, const char *pattern); extern int odb_pack_keep(char *name, size_t namesz, const unsigned char *sha1); +extern char *xgetcwd(void); static inline size_t xsize_t(off_t len) { @@ -546,13 +633,6 @@ static inline size_t xsize_t(off_t len) return (size_t)len; } -static inline int has_extension(const char *filename, const char *ext) -{ - size_t len = strlen(filename); - size_t extlen = strlen(ext); - return len > extlen && !memcmp(filename + len - extlen, ext, extlen); -} - /* in ctype.c, for kwset users */ extern const char tolower_trans_tbl[256]; @@ -688,6 +768,10 @@ void git_qsort(void *base, size_t nmemb, size_t size, #endif #endif +#if defined(__GNUC__) || (_MSC_VER >= 1400) +#define HAVE_VARIADIC_MACROS 1 +#endif + /* * Preserves errno, prints a message, but gives no warning for ENOENT. * Always returns the return value of unlink(2). |