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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:47:53 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:47:53 +0000 |
commit | c8bae7493d2f2910b57f13ded012e86bdcfb0532 (patch) | |
tree | 24e09d9f84dec336720cf393e156089ca2835791 /t/helper/test-chmtime.c | |
parent | Initial commit. (diff) | |
download | git-17a789943131483bc454986d1be6da6caaabce8c.tar.xz git-17a789943131483bc454986d1be6da6caaabce8c.zip |
Adding upstream version 1:2.39.2.upstream/1%2.39.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 't/helper/test-chmtime.c')
-rw-r--r-- | t/helper/test-chmtime.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/t/helper/test-chmtime.c b/t/helper/test-chmtime.c new file mode 100644 index 0000000..dc28890 --- /dev/null +++ b/t/helper/test-chmtime.c @@ -0,0 +1,163 @@ +/* + * This program can either change modification time of the given + * file(s) or just print it. The program does not change atime or + * ctime (their values are explicitly preserved). + * + * The mtime can be changed to an absolute value: + * + * test-tool chmtime =<seconds> file... + * + * Relative to the current time as returned by time(3): + * + * test-tool chmtime =+<seconds> (or =-<seconds>) file... + * + * Or relative to the current mtime of the file: + * + * test-tool chmtime <seconds> file... + * test-tool chmtime +<seconds> (or -<seconds>) file... + * + * Examples: + * + * To print the mtime and the file name use --verbose and set + * the file mtime offset to 0: + * + * test-tool chmtime -v +0 file + * + * To print only the mtime use --get: + * + * test-tool chmtime --get file + * + * To set the mtime to current time: + * + * test-tool chmtime =+0 file + * + * To set the file mtime offset to +1 and print the new value: + * + * test-tool chmtime --get +1 file + * + */ +#include "test-tool.h" +#include "git-compat-util.h" +#include <utime.h> + +static const char usage_str[] = + "(-v|--verbose|-g|--get) (+|=|=+|=-|-)<seconds> <file>..."; + +static int timespec_arg(const char *arg, long int *set_time, int *set_eq) +{ + char *test; + const char *timespec = arg; + *set_eq = (*timespec == '=') ? 1 : 0; + if (*set_eq) { + timespec++; + if (*timespec == '+') { + *set_eq = 2; /* relative "in the future" */ + timespec++; + } + } + *set_time = strtol(timespec, &test, 10); + if (*test) { + return 0; + } + if ((*set_eq && *set_time < 0) || *set_eq == 2) { + time_t now = time(NULL); + *set_time += now; + } + return 1; +} + +int cmd__chmtime(int argc, const char **argv) +{ + static int verbose; + static int get; + + int i = 1; + /* no mtime change by default */ + int set_eq = 0; + long int set_time = 0; + + if (argc < 3) + goto usage; + + if (strcmp(argv[i], "--get") == 0 || strcmp(argv[i], "-g") == 0) { + get = 1; + ++i; + } else if (strcmp(argv[i], "--verbose") == 0 || strcmp(argv[i], "-v") == 0) { + verbose = 1; + ++i; + } + + if (i == argc) { + goto usage; + } + + if (timespec_arg(argv[i], &set_time, &set_eq)) { + ++i; + } else { + if (get == 0) { + fprintf(stderr, "Not a base-10 integer: %s\n", argv[i] + 1); + goto usage; + } + } + + if (i == argc) + goto usage; + + for (; i < argc; i++) { + struct stat sb; + struct utimbuf utb; + uintmax_t mtime; + + if (stat(argv[i], &sb) < 0) { + fprintf(stderr, "Failed to stat %s: %s. Skipping\n", + argv[i], strerror(errno)); + continue; + } + +#ifdef GIT_WINDOWS_NATIVE + if (!(sb.st_mode & S_IWUSR) && + chmod(argv[i], sb.st_mode | S_IWUSR)) { + fprintf(stderr, "Could not make user-writable %s: %s", + argv[i], strerror(errno)); + return 1; + } +#endif + + utb.actime = sb.st_atime; + utb.modtime = set_eq ? set_time : sb.st_mtime + set_time; + + mtime = utb.modtime < 0 ? 0: utb.modtime; + if (get) { + printf("%"PRIuMAX"\n", mtime); + } else if (verbose) { + printf("%"PRIuMAX"\t%s\n", mtime, argv[i]); + } + + if (utb.modtime != sb.st_mtime && utime(argv[i], &utb) < 0) { +#ifdef GIT_WINDOWS_NATIVE + if (S_ISDIR(sb.st_mode)) { + /* + * NEEDSWORK: The Windows version of `utime()` + * (aka `mingw_utime()`) does not correctly + * handle directory arguments, since it uses + * `_wopen()`. Ignore it for now since this + * is just a test. + */ + fprintf(stderr, + ("Failed to modify time on directory %s. " + "Skipping\n"), argv[i]); + continue; + } +#endif + fprintf(stderr, "Failed to modify time on %s: %s\n", + argv[i], strerror(errno)); + return 1; + } + } + + return 0; + +usage: + fprintf(stderr, "usage: %s %s\n", argv[0], usage_str); + return 1; +} |