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107 lines
2.5 KiB
107 lines
2.5 KiB
/* |
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* GIT - The information manager from hell |
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* |
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* Copyright (C) Linus Torvalds, 2005 |
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*/ |
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#include "cache.h" |
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static const char *show_diff_usage = "show-diff [-q] [-s] [-z] [paths...]"; |
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static int recursive = 0; |
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static int line_termination = '\n'; |
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static int silent = 0; |
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static int silent_on_nonexisting_files = 0; |
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static int matches_pathspec(struct cache_entry *ce, char **spec, int cnt) |
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{ |
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int i; |
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int namelen = ce_namelen(ce); |
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for (i = 0; i < cnt; i++) { |
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int speclen = strlen(spec[i]); |
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if (! strncmp(spec[i], ce->name, speclen) && |
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speclen <= namelen && |
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(ce->name[speclen] == 0 || |
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ce->name[speclen] == '/')) |
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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_file(const char *prefix, struct cache_entry *ce) |
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{ |
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printf("%s%o\t%s\t%s\t%s%c", prefix, ntohl(ce->ce_mode), "blob", |
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sha1_to_hex(ce->sha1), ce->name, line_termination); |
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} |
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int main(int argc, char **argv) |
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{ |
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static const char null_sha1_hex[] = "0000000000000000000000000000000000000000"; |
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int entries = read_cache(); |
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int i; |
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while (1 < argc && argv[1][0] == '-') { |
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if (!strcmp(argv[1], "-s")) |
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silent_on_nonexisting_files = silent = 1; |
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else if (!strcmp(argv[1], "-q")) |
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silent_on_nonexisting_files = 1; |
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else if (!strcmp(argv[1], "-z")) |
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line_termination = 0; |
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else if (!strcmp(argv[1], "-r")) |
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recursive = 1; /* No-op */ |
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else |
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usage(show_diff_usage); |
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argv++; argc--; |
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} |
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/* At this point, if argc == 1, then we are doing everything. |
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* Otherwise argv[1] .. argv[argc-1] have the explicit paths. |
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*/ |
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if (entries < 0) { |
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perror("read_cache"); |
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exit(1); |
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} |
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for (i = 0; i < entries; i++) { |
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struct stat st; |
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unsigned int oldmode, mode; |
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struct cache_entry *ce = active_cache[i]; |
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int changed; |
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if (1 < argc && |
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! matches_pathspec(ce, argv+1, argc-1)) |
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continue; |
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if (ce_stage(ce)) { |
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printf("U %s%c", ce->name, line_termination); |
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while (i < entries && |
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!strcmp(ce->name, active_cache[i]->name)) |
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i++; |
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i--; /* compensate for loop control increments */ |
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continue; |
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} |
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if (stat(ce->name, &st) < 0) { |
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if (errno != ENOENT) { |
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perror(ce->name); |
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continue; |
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} |
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if (silent_on_nonexisting_files) |
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continue; |
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show_file("-", ce); |
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continue; |
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} |
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changed = cache_match_stat(ce, &st); |
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if (!changed) |
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continue; |
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oldmode = ntohl(ce->ce_mode); |
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mode = S_IFREG | ce_permissions(st.st_mode); |
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printf("*%o->%o\t%s\t%s->%s\t%s%c", |
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oldmode, mode, "blob", |
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sha1_to_hex(ce->sha1), null_sha1_hex, |
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ce->name, line_termination); |
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} |
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return 0; |
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}
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