110 lines
2.8 KiB
C
110 lines
2.8 KiB
C
#include "cache.h"
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#include "string-list.h"
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/*
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* A "string_list_each_func_t" function that normalizes an entry from
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* GIT_CEILING_DIRECTORIES. If the path is unusable for some reason,
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* die with an explanation.
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*/
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static int normalize_ceiling_entry(struct string_list_item *item, void *unused)
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{
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const char *ceil = item->string;
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int len = strlen(ceil);
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char buf[PATH_MAX+1];
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if (len == 0)
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die("Empty path is not supported");
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if (len > PATH_MAX)
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die("Path \"%s\" is too long", ceil);
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if (!is_absolute_path(ceil))
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die("Path \"%s\" is not absolute", ceil);
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if (normalize_path_copy(buf, ceil) < 0)
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die("Path \"%s\" could not be normalized", ceil);
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len = strlen(buf);
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if (len > 1 && buf[len-1] == '/')
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die("Normalized path \"%s\" ended with slash", buf);
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free(item->string);
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item->string = xstrdup(buf);
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return 1;
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}
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int main(int argc, char **argv)
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{
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if (argc == 3 && !strcmp(argv[1], "normalize_path_copy")) {
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char *buf = xmalloc(PATH_MAX + 1);
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int rv = normalize_path_copy(buf, argv[2]);
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if (rv)
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buf = "++failed++";
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puts(buf);
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return 0;
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}
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if (argc >= 2 && !strcmp(argv[1], "real_path")) {
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while (argc > 2) {
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puts(real_path(argv[2]));
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argc--;
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argv++;
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}
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return 0;
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}
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if (argc >= 2 && !strcmp(argv[1], "absolute_path")) {
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while (argc > 2) {
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puts(absolute_path(argv[2]));
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argc--;
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argv++;
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}
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return 0;
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}
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if (argc == 4 && !strcmp(argv[1], "longest_ancestor_length")) {
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int len;
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struct string_list ceiling_dirs = STRING_LIST_INIT_DUP;
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char *path = xstrdup(argv[2]);
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/*
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* We have to normalize the arguments because under
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* Windows, bash mangles arguments that look like
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* absolute POSIX paths or colon-separate lists of
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* absolute POSIX paths into DOS paths (e.g.,
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* "/foo:/foo/bar" might be converted to
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* "D:\Src\msysgit\foo;D:\Src\msysgit\foo\bar"),
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* whereas longest_ancestor_length() requires paths
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* that use forward slashes.
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*/
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if (normalize_path_copy(path, path))
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die("Path \"%s\" could not be normalized", argv[2]);
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string_list_split(&ceiling_dirs, argv[3], PATH_SEP, -1);
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filter_string_list(&ceiling_dirs, 0,
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normalize_ceiling_entry, NULL);
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len = longest_ancestor_length(path, &ceiling_dirs);
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string_list_clear(&ceiling_dirs, 0);
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free(path);
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printf("%d\n", len);
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return 0;
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}
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if (argc >= 4 && !strcmp(argv[1], "prefix_path")) {
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char *prefix = argv[2];
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int prefix_len = strlen(prefix);
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int nongit_ok;
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setup_git_directory_gently(&nongit_ok);
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while (argc > 3) {
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puts(prefix_path(prefix, prefix_len, argv[3]));
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argc--;
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argv++;
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}
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return 0;
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}
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if (argc == 4 && !strcmp(argv[1], "strip_path_suffix")) {
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char *prefix = strip_path_suffix(argv[2], argv[3]);
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printf("%s\n", prefix ? prefix : "(null)");
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return 0;
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}
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fprintf(stderr, "%s: unknown function name: %s\n", argv[0],
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argv[1] ? argv[1] : "(there was none)");
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return 1;
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}
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