mirror of
https://github.com/git/git.git
synced 2024-06-10 00:36:35 +02:00
1e3584053d
Make git-ls-files --others --ignored recurse into non-excluded subdirectories. Typically when asking git-ls-files to display all files which are ignored by one or more exclude patterns one would want it to recurse into subdirectories which are not themselves excluded to see if there are any excluded files contained within those subdirectories. Signed-off-by: Junio C Hamano <junkio@cox.net>
791 lines
18 KiB
C
791 lines
18 KiB
C
/*
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* This merges the file listing in the directory cache index
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* with the actual working directory list, and shows different
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* combinations of the two.
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*
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* Copyright (C) Linus Torvalds, 2005
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*/
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#include <dirent.h>
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#include <fnmatch.h>
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#include "cache.h"
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#include "quote.h"
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static int show_deleted = 0;
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static int show_cached = 0;
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static int show_others = 0;
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static int show_ignored = 0;
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static int show_stage = 0;
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static int show_unmerged = 0;
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static int show_modified = 0;
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static int show_killed = 0;
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static int show_other_directories = 0;
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static int show_valid_bit = 0;
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static int line_terminator = '\n';
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static int prefix_len = 0, prefix_offset = 0;
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static const char *prefix = NULL;
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static const char **pathspec = NULL;
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static int error_unmatch = 0;
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static char *ps_matched = NULL;
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static const char *tag_cached = "";
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static const char *tag_unmerged = "";
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static const char *tag_removed = "";
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static const char *tag_other = "";
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static const char *tag_killed = "";
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static const char *tag_modified = "";
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static const char *exclude_per_dir = NULL;
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/* We maintain three exclude pattern lists:
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* EXC_CMDL lists patterns explicitly given on the command line.
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* EXC_DIRS lists patterns obtained from per-directory ignore files.
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* EXC_FILE lists patterns from fallback ignore files.
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*/
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#define EXC_CMDL 0
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#define EXC_DIRS 1
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#define EXC_FILE 2
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static struct exclude_list {
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int nr;
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int alloc;
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struct exclude {
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const char *pattern;
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const char *base;
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int baselen;
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} **excludes;
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} exclude_list[3];
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static void add_exclude(const char *string, const char *base,
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int baselen, struct exclude_list *which)
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{
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struct exclude *x = xmalloc(sizeof (*x));
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x->pattern = string;
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x->base = base;
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x->baselen = baselen;
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if (which->nr == which->alloc) {
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which->alloc = alloc_nr(which->alloc);
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which->excludes = realloc(which->excludes,
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which->alloc * sizeof(x));
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}
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which->excludes[which->nr++] = x;
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}
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static int add_excludes_from_file_1(const char *fname,
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const char *base,
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int baselen,
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struct exclude_list *which)
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{
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int fd, i;
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long size;
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char *buf, *entry;
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fd = open(fname, O_RDONLY);
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if (fd < 0)
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goto err;
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size = lseek(fd, 0, SEEK_END);
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if (size < 0)
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goto err;
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lseek(fd, 0, SEEK_SET);
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if (size == 0) {
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close(fd);
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return 0;
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}
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buf = xmalloc(size);
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if (read(fd, buf, size) != size)
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goto err;
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close(fd);
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entry = buf;
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for (i = 0; i < size; i++) {
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if (buf[i] == '\n') {
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if (entry != buf + i && entry[0] != '#') {
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buf[i - (i && buf[i-1] == '\r')] = 0;
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add_exclude(entry, base, baselen, which);
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}
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entry = buf + i + 1;
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}
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}
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return 0;
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err:
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if (0 <= fd)
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close(fd);
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return -1;
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}
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static void add_excludes_from_file(const char *fname)
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{
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if (add_excludes_from_file_1(fname, "", 0,
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&exclude_list[EXC_FILE]) < 0)
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die("cannot use %s as an exclude file", fname);
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}
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static int push_exclude_per_directory(const char *base, int baselen)
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{
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char exclude_file[PATH_MAX];
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struct exclude_list *el = &exclude_list[EXC_DIRS];
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int current_nr = el->nr;
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if (exclude_per_dir) {
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memcpy(exclude_file, base, baselen);
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strcpy(exclude_file + baselen, exclude_per_dir);
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add_excludes_from_file_1(exclude_file, base, baselen, el);
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}
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return current_nr;
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}
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static void pop_exclude_per_directory(int stk)
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{
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struct exclude_list *el = &exclude_list[EXC_DIRS];
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while (stk < el->nr)
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free(el->excludes[--el->nr]);
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}
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/* Scan the list and let the last match determines the fate.
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* Return 1 for exclude, 0 for include and -1 for undecided.
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*/
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static int excluded_1(const char *pathname,
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int pathlen,
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struct exclude_list *el)
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{
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int i;
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if (el->nr) {
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for (i = el->nr - 1; 0 <= i; i--) {
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struct exclude *x = el->excludes[i];
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const char *exclude = x->pattern;
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int to_exclude = 1;
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if (*exclude == '!') {
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to_exclude = 0;
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exclude++;
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}
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if (!strchr(exclude, '/')) {
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/* match basename */
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const char *basename = strrchr(pathname, '/');
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basename = (basename) ? basename+1 : pathname;
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if (fnmatch(exclude, basename, 0) == 0)
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return to_exclude;
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}
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else {
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/* match with FNM_PATHNAME:
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* exclude has base (baselen long) implicitly
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* in front of it.
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*/
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int baselen = x->baselen;
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if (*exclude == '/')
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exclude++;
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if (pathlen < baselen ||
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(baselen && pathname[baselen-1] != '/') ||
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strncmp(pathname, x->base, baselen))
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continue;
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if (fnmatch(exclude, pathname+baselen,
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FNM_PATHNAME) == 0)
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return to_exclude;
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}
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}
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}
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return -1; /* undecided */
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}
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static int excluded(const char *pathname)
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{
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int pathlen = strlen(pathname);
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int st;
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for (st = EXC_CMDL; st <= EXC_FILE; st++) {
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switch (excluded_1(pathname, pathlen, &exclude_list[st])) {
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case 0:
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return 0;
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case 1:
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return 1;
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}
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}
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return 0;
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}
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struct nond_on_fs {
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int len;
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char name[FLEX_ARRAY]; /* more */
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};
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static struct nond_on_fs **dir;
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static int nr_dir;
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static int dir_alloc;
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static void add_name(const char *pathname, int len)
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{
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struct nond_on_fs *ent;
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if (cache_name_pos(pathname, len) >= 0)
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return;
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if (nr_dir == dir_alloc) {
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dir_alloc = alloc_nr(dir_alloc);
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dir = xrealloc(dir, dir_alloc*sizeof(ent));
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}
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ent = xmalloc(sizeof(*ent) + len + 1);
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ent->len = len;
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memcpy(ent->name, pathname, len);
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ent->name[len] = 0;
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dir[nr_dir++] = ent;
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}
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static int dir_exists(const char *dirname, int len)
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{
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int pos = cache_name_pos(dirname, len);
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if (pos >= 0)
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return 1;
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pos = -pos-1;
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if (pos >= active_nr) /* can't */
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return 0;
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return !strncmp(active_cache[pos]->name, dirname, len);
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}
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/*
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* Read a directory tree. We currently ignore anything but
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* directories, regular files and symlinks. That's because git
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* doesn't handle them at all yet. Maybe that will change some
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* day.
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*
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* Also, we ignore the name ".git" (even if it is not a directory).
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* That likely will not change.
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*/
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static void read_directory(const char *path, const char *base, int baselen)
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{
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DIR *dir = opendir(path);
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if (dir) {
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int exclude_stk;
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struct dirent *de;
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char fullname[MAXPATHLEN + 1];
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memcpy(fullname, base, baselen);
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exclude_stk = push_exclude_per_directory(base, baselen);
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while ((de = readdir(dir)) != NULL) {
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int len;
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if ((de->d_name[0] == '.') &&
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(de->d_name[1] == 0 ||
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!strcmp(de->d_name + 1, ".") ||
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!strcmp(de->d_name + 1, "git")))
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continue;
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len = strlen(de->d_name);
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memcpy(fullname + baselen, de->d_name, len+1);
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if (excluded(fullname) != show_ignored) {
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if (!show_ignored || DTYPE(de) != DT_DIR) {
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continue;
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}
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}
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switch (DTYPE(de)) {
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struct stat st;
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default:
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continue;
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case DT_UNKNOWN:
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if (lstat(fullname, &st))
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continue;
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if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode))
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break;
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if (!S_ISDIR(st.st_mode))
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continue;
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/* fallthrough */
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case DT_DIR:
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memcpy(fullname + baselen + len, "/", 2);
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len++;
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if (show_other_directories &&
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!dir_exists(fullname, baselen + len))
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break;
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read_directory(fullname, fullname,
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baselen + len);
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continue;
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case DT_REG:
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case DT_LNK:
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break;
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}
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add_name(fullname, baselen + len);
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}
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closedir(dir);
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pop_exclude_per_directory(exclude_stk);
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}
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}
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static int cmp_name(const void *p1, const void *p2)
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{
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const struct nond_on_fs *e1 = *(const struct nond_on_fs **)p1;
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const struct nond_on_fs *e2 = *(const struct nond_on_fs **)p2;
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return cache_name_compare(e1->name, e1->len,
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e2->name, e2->len);
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}
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/*
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* Match a pathspec against a filename. The first "len" characters
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* are the common prefix
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*/
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static int match(const char **spec, char *ps_matched,
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const char *filename, int len)
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{
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const char *m;
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while ((m = *spec++) != NULL) {
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int matchlen = strlen(m + len);
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if (!matchlen)
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goto matched;
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if (!strncmp(m + len, filename + len, matchlen)) {
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if (m[len + matchlen - 1] == '/')
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goto matched;
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switch (filename[len + matchlen]) {
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case '/': case '\0':
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goto matched;
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}
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}
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if (!fnmatch(m + len, filename + len, 0))
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goto matched;
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if (ps_matched)
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ps_matched++;
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continue;
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matched:
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if (ps_matched)
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*ps_matched = 1;
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return 1;
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}
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return 0;
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}
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static void show_dir_entry(const char *tag, struct nond_on_fs *ent)
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{
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int len = prefix_len;
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int offset = prefix_offset;
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if (len >= ent->len)
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die("git-ls-files: internal error - directory entry not superset of prefix");
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if (pathspec && !match(pathspec, ps_matched, ent->name, len))
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return;
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fputs(tag, stdout);
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write_name_quoted("", 0, ent->name + offset, line_terminator, stdout);
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putchar(line_terminator);
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}
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static void show_other_files(void)
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{
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int i;
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for (i = 0; i < nr_dir; i++) {
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/* We should not have a matching entry, but we
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* may have an unmerged entry for this path.
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*/
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struct nond_on_fs *ent = dir[i];
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int pos = cache_name_pos(ent->name, ent->len);
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struct cache_entry *ce;
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if (0 <= pos)
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die("bug in show-other-files");
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pos = -pos - 1;
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if (pos < active_nr) {
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ce = active_cache[pos];
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if (ce_namelen(ce) == ent->len &&
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!memcmp(ce->name, ent->name, ent->len))
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continue; /* Yup, this one exists unmerged */
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}
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show_dir_entry(tag_other, ent);
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}
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}
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static void show_killed_files(void)
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{
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int i;
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for (i = 0; i < nr_dir; i++) {
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struct nond_on_fs *ent = dir[i];
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char *cp, *sp;
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int pos, len, killed = 0;
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for (cp = ent->name; cp - ent->name < ent->len; cp = sp + 1) {
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sp = strchr(cp, '/');
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if (!sp) {
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/* If ent->name is prefix of an entry in the
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* cache, it will be killed.
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*/
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pos = cache_name_pos(ent->name, ent->len);
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if (0 <= pos)
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die("bug in show-killed-files");
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pos = -pos - 1;
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while (pos < active_nr &&
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ce_stage(active_cache[pos]))
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pos++; /* skip unmerged */
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if (active_nr <= pos)
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break;
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/* pos points at a name immediately after
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* ent->name in the cache. Does it expect
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* ent->name to be a directory?
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*/
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len = ce_namelen(active_cache[pos]);
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if ((ent->len < len) &&
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!strncmp(active_cache[pos]->name,
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ent->name, ent->len) &&
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active_cache[pos]->name[ent->len] == '/')
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killed = 1;
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break;
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}
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if (0 <= cache_name_pos(ent->name, sp - ent->name)) {
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/* If any of the leading directories in
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* ent->name is registered in the cache,
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* ent->name will be killed.
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*/
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killed = 1;
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break;
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}
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}
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if (killed)
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show_dir_entry(tag_killed, dir[i]);
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}
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}
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static void show_ce_entry(const char *tag, struct cache_entry *ce)
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{
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int len = prefix_len;
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int offset = prefix_offset;
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if (len >= ce_namelen(ce))
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die("git-ls-files: internal error - cache entry not superset of prefix");
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if (pathspec && !match(pathspec, ps_matched, ce->name, len))
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return;
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if (tag && *tag && show_valid_bit &&
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(ce->ce_flags & htons(CE_VALID))) {
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static char alttag[4];
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memcpy(alttag, tag, 3);
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if (isalpha(tag[0]))
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alttag[0] = tolower(tag[0]);
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else if (tag[0] == '?')
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alttag[0] = '!';
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else {
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alttag[0] = 'v';
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alttag[1] = tag[0];
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alttag[2] = ' ';
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alttag[3] = 0;
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}
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tag = alttag;
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}
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if (!show_stage) {
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fputs(tag, stdout);
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write_name_quoted("", 0, ce->name + offset,
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line_terminator, stdout);
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putchar(line_terminator);
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}
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else {
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printf("%s%06o %s %d\t",
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tag,
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ntohl(ce->ce_mode),
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sha1_to_hex(ce->sha1),
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ce_stage(ce));
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write_name_quoted("", 0, ce->name + offset,
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line_terminator, stdout);
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putchar(line_terminator);
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}
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}
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static void show_files(void)
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{
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int i;
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/* For cached/deleted files we don't need to even do the readdir */
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if (show_others || show_killed) {
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const char *path = ".", *base = "";
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int baselen = prefix_len;
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if (baselen) {
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path = base = prefix;
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if (exclude_per_dir) {
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char *p, *pp = xmalloc(baselen+1);
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memcpy(pp, prefix, baselen+1);
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p = pp;
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while (1) {
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char save = *p;
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*p = 0;
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push_exclude_per_directory(pp, p-pp);
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*p++ = save;
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if (!save)
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break;
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p = strchr(p, '/');
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if (p)
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p++;
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else
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p = pp + baselen;
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}
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free(pp);
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}
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}
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read_directory(path, base, baselen);
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qsort(dir, nr_dir, sizeof(struct nond_on_fs *), cmp_name);
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if (show_others)
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show_other_files();
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if (show_killed)
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show_killed_files();
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}
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if (show_cached | show_stage) {
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for (i = 0; i < active_nr; i++) {
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struct cache_entry *ce = active_cache[i];
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if (excluded(ce->name) != show_ignored)
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continue;
|
|
if (show_unmerged && !ce_stage(ce))
|
|
continue;
|
|
show_ce_entry(ce_stage(ce) ? tag_unmerged : tag_cached, ce);
|
|
}
|
|
}
|
|
if (show_deleted | show_modified) {
|
|
for (i = 0; i < active_nr; i++) {
|
|
struct cache_entry *ce = active_cache[i];
|
|
struct stat st;
|
|
int err;
|
|
if (excluded(ce->name) != show_ignored)
|
|
continue;
|
|
err = lstat(ce->name, &st);
|
|
if (show_deleted && err)
|
|
show_ce_entry(tag_removed, ce);
|
|
if (show_modified && ce_modified(ce, &st, 0))
|
|
show_ce_entry(tag_modified, ce);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Prune the index to only contain stuff starting with "prefix"
|
|
*/
|
|
static void prune_cache(void)
|
|
{
|
|
int pos = cache_name_pos(prefix, prefix_len);
|
|
unsigned int first, last;
|
|
|
|
if (pos < 0)
|
|
pos = -pos-1;
|
|
active_cache += pos;
|
|
active_nr -= pos;
|
|
first = 0;
|
|
last = active_nr;
|
|
while (last > first) {
|
|
int next = (last + first) >> 1;
|
|
struct cache_entry *ce = active_cache[next];
|
|
if (!strncmp(ce->name, prefix, prefix_len)) {
|
|
first = next+1;
|
|
continue;
|
|
}
|
|
last = next;
|
|
}
|
|
active_nr = last;
|
|
}
|
|
|
|
static void verify_pathspec(void)
|
|
{
|
|
const char **p, *n, *prev;
|
|
char *real_prefix;
|
|
unsigned long max;
|
|
|
|
prev = NULL;
|
|
max = PATH_MAX;
|
|
for (p = pathspec; (n = *p) != NULL; p++) {
|
|
int i, len = 0;
|
|
for (i = 0; i < max; i++) {
|
|
char c = n[i];
|
|
if (prev && prev[i] != c)
|
|
break;
|
|
if (!c || c == '*' || c == '?')
|
|
break;
|
|
if (c == '/')
|
|
len = i+1;
|
|
}
|
|
prev = n;
|
|
if (len < max) {
|
|
max = len;
|
|
if (!max)
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (prefix_offset > max || memcmp(prev, prefix, prefix_offset))
|
|
die("git-ls-files: cannot generate relative filenames containing '..'");
|
|
|
|
real_prefix = NULL;
|
|
prefix_len = max;
|
|
if (max) {
|
|
real_prefix = xmalloc(max + 1);
|
|
memcpy(real_prefix, prev, max);
|
|
real_prefix[max] = 0;
|
|
}
|
|
prefix = real_prefix;
|
|
}
|
|
|
|
static const char ls_files_usage[] =
|
|
"git-ls-files [-z] [-t] [-v] (--[cached|deleted|others|stage|unmerged|killed|modified])* "
|
|
"[ --ignored ] [--exclude=<pattern>] [--exclude-from=<file>] "
|
|
"[ --exclude-per-directory=<filename> ] [--full-name] [--] [<file>]*";
|
|
|
|
int main(int argc, const char **argv)
|
|
{
|
|
int i;
|
|
int exc_given = 0;
|
|
|
|
prefix = setup_git_directory();
|
|
if (prefix)
|
|
prefix_offset = strlen(prefix);
|
|
git_config(git_default_config);
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
|
|
if (!strcmp(arg, "--")) {
|
|
i++;
|
|
break;
|
|
}
|
|
if (!strcmp(arg, "-z")) {
|
|
line_terminator = 0;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-t") || !strcmp(arg, "-v")) {
|
|
tag_cached = "H ";
|
|
tag_unmerged = "M ";
|
|
tag_removed = "R ";
|
|
tag_modified = "C ";
|
|
tag_other = "? ";
|
|
tag_killed = "K ";
|
|
if (arg[1] == 'v')
|
|
show_valid_bit = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-c") || !strcmp(arg, "--cached")) {
|
|
show_cached = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-d") || !strcmp(arg, "--deleted")) {
|
|
show_deleted = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-m") || !strcmp(arg, "--modified")) {
|
|
show_modified = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-o") || !strcmp(arg, "--others")) {
|
|
show_others = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-i") || !strcmp(arg, "--ignored")) {
|
|
show_ignored = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-s") || !strcmp(arg, "--stage")) {
|
|
show_stage = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-k") || !strcmp(arg, "--killed")) {
|
|
show_killed = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--directory")) {
|
|
show_other_directories = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-u") || !strcmp(arg, "--unmerged")) {
|
|
/* There's no point in showing unmerged unless
|
|
* you also show the stage information.
|
|
*/
|
|
show_stage = 1;
|
|
show_unmerged = 1;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-x") && i+1 < argc) {
|
|
exc_given = 1;
|
|
add_exclude(argv[++i], "", 0, &exclude_list[EXC_CMDL]);
|
|
continue;
|
|
}
|
|
if (!strncmp(arg, "--exclude=", 10)) {
|
|
exc_given = 1;
|
|
add_exclude(arg+10, "", 0, &exclude_list[EXC_CMDL]);
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "-X") && i+1 < argc) {
|
|
exc_given = 1;
|
|
add_excludes_from_file(argv[++i]);
|
|
continue;
|
|
}
|
|
if (!strncmp(arg, "--exclude-from=", 15)) {
|
|
exc_given = 1;
|
|
add_excludes_from_file(arg+15);
|
|
continue;
|
|
}
|
|
if (!strncmp(arg, "--exclude-per-directory=", 24)) {
|
|
exc_given = 1;
|
|
exclude_per_dir = arg + 24;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--full-name")) {
|
|
prefix_offset = 0;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--error-unmatch")) {
|
|
error_unmatch = 1;
|
|
continue;
|
|
}
|
|
if (*arg == '-')
|
|
usage(ls_files_usage);
|
|
break;
|
|
}
|
|
|
|
pathspec = get_pathspec(prefix, argv + i);
|
|
|
|
/* Verify that the pathspec matches the prefix */
|
|
if (pathspec)
|
|
verify_pathspec();
|
|
|
|
/* Treat unmatching pathspec elements as errors */
|
|
if (pathspec && error_unmatch) {
|
|
int num;
|
|
for (num = 0; pathspec[num]; num++)
|
|
;
|
|
ps_matched = xcalloc(1, num);
|
|
}
|
|
|
|
if (show_ignored && !exc_given) {
|
|
fprintf(stderr, "%s: --ignored needs some exclude pattern\n",
|
|
argv[0]);
|
|
exit(1);
|
|
}
|
|
|
|
/* With no flags, we default to showing the cached files */
|
|
if (!(show_stage | show_deleted | show_others | show_unmerged |
|
|
show_killed | show_modified))
|
|
show_cached = 1;
|
|
|
|
read_cache();
|
|
if (prefix)
|
|
prune_cache();
|
|
show_files();
|
|
|
|
if (ps_matched) {
|
|
/* We need to make sure all pathspec matched otherwise
|
|
* it is an error.
|
|
*/
|
|
int num, errors = 0;
|
|
for (num = 0; pathspec[num]; num++) {
|
|
if (ps_matched[num])
|
|
continue;
|
|
error("pathspec '%s' did not match any.",
|
|
pathspec[num] + prefix_offset);
|
|
errors++;
|
|
}
|
|
return errors ? 1 : 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|