builtin / check-attr.con commit submodule sync: skip work for inactive submodules (e7849a9)
   1#include "builtin.h"
   2#include "cache.h"
   3#include "attr.h"
   4#include "quote.h"
   5#include "parse-options.h"
   6
   7static int all_attrs;
   8static int cached_attrs;
   9static int stdin_paths;
  10static const char * const check_attr_usage[] = {
  11N_("git check-attr [-a | --all | <attr>...] [--] <pathname>..."),
  12N_("git check-attr --stdin [-z] [-a | --all | <attr>...]"),
  13NULL
  14};
  15
  16static int nul_term_line;
  17
  18static const struct option check_attr_options[] = {
  19        OPT_BOOL('a', "all", &all_attrs, N_("report all attributes set on file")),
  20        OPT_BOOL(0,  "cached", &cached_attrs, N_("use .gitattributes only from the index")),
  21        OPT_BOOL(0 , "stdin", &stdin_paths, N_("read file names from stdin")),
  22        OPT_BOOL('z', NULL, &nul_term_line,
  23                 N_("terminate input and output records by a NUL character")),
  24        OPT_END()
  25};
  26
  27static void output_attr(struct attr_check *check, const char *file)
  28{
  29        int j;
  30        int cnt = check->nr;
  31
  32        for (j = 0; j < cnt; j++) {
  33                const char *value = check->items[j].value;
  34
  35                if (ATTR_TRUE(value))
  36                        value = "set";
  37                else if (ATTR_FALSE(value))
  38                        value = "unset";
  39                else if (ATTR_UNSET(value))
  40                        value = "unspecified";
  41
  42                if (nul_term_line) {
  43                        printf("%s%c" /* path */
  44                               "%s%c" /* attrname */
  45                               "%s%c" /* attrvalue */,
  46                               file, 0,
  47                               git_attr_name(check->items[j].attr), 0, value, 0);
  48                } else {
  49                        quote_c_style(file, NULL, stdout, 0);
  50                        printf(": %s: %s\n",
  51                               git_attr_name(check->items[j].attr), value);
  52                }
  53        }
  54}
  55
  56static void check_attr(const char *prefix,
  57                       struct attr_check *check,
  58                       int collect_all,
  59                       const char *file)
  60{
  61        char *full_path =
  62                prefix_path(prefix, prefix ? strlen(prefix) : 0, file);
  63
  64        if (collect_all) {
  65                git_all_attrs(full_path, check);
  66        } else {
  67                if (git_check_attr(full_path, check))
  68                        die("git_check_attr died");
  69        }
  70        output_attr(check, file);
  71
  72        free(full_path);
  73}
  74
  75static void check_attr_stdin_paths(const char *prefix,
  76                                   struct attr_check *check,
  77                                   int collect_all)
  78{
  79        struct strbuf buf = STRBUF_INIT;
  80        struct strbuf unquoted = STRBUF_INIT;
  81        strbuf_getline_fn getline_fn;
  82
  83        getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
  84        while (getline_fn(&buf, stdin) != EOF) {
  85                if (!nul_term_line && buf.buf[0] == '"') {
  86                        strbuf_reset(&unquoted);
  87                        if (unquote_c_style(&unquoted, buf.buf, NULL))
  88                                die("line is badly quoted");
  89                        strbuf_swap(&buf, &unquoted);
  90                }
  91                check_attr(prefix, check, collect_all, buf.buf);
  92                maybe_flush_or_die(stdout, "attribute to stdout");
  93        }
  94        strbuf_release(&buf);
  95        strbuf_release(&unquoted);
  96}
  97
  98static NORETURN void error_with_usage(const char *msg)
  99{
 100        error("%s", msg);
 101        usage_with_options(check_attr_usage, check_attr_options);
 102}
 103
 104int cmd_check_attr(int argc, const char **argv, const char *prefix)
 105{
 106        struct attr_check *check;
 107        int cnt, i, doubledash, filei;
 108
 109        if (!is_bare_repository())
 110                setup_work_tree();
 111
 112        git_config(git_default_config, NULL);
 113
 114        argc = parse_options(argc, argv, prefix, check_attr_options,
 115                             check_attr_usage, PARSE_OPT_KEEP_DASHDASH);
 116
 117        if (read_cache() < 0) {
 118                die("invalid cache");
 119        }
 120
 121        if (cached_attrs)
 122                git_attr_set_direction(GIT_ATTR_INDEX, NULL);
 123
 124        doubledash = -1;
 125        for (i = 0; doubledash < 0 && i < argc; i++) {
 126                if (!strcmp(argv[i], "--"))
 127                        doubledash = i;
 128        }
 129
 130        /* Process --all and/or attribute arguments: */
 131        if (all_attrs) {
 132                if (doubledash >= 1)
 133                        error_with_usage("Attributes and --all both specified");
 134
 135                cnt = 0;
 136                filei = doubledash + 1;
 137        } else if (doubledash == 0) {
 138                error_with_usage("No attribute specified");
 139        } else if (doubledash < 0) {
 140                if (!argc)
 141                        error_with_usage("No attribute specified");
 142
 143                if (stdin_paths) {
 144                        /* Treat all arguments as attribute names. */
 145                        cnt = argc;
 146                        filei = argc;
 147                } else {
 148                        /* Treat exactly one argument as an attribute name. */
 149                        cnt = 1;
 150                        filei = 1;
 151                }
 152        } else {
 153                cnt = doubledash;
 154                filei = doubledash + 1;
 155        }
 156
 157        /* Check file argument(s): */
 158        if (stdin_paths) {
 159                if (filei < argc)
 160                        error_with_usage("Can't specify files with --stdin");
 161        } else {
 162                if (filei >= argc)
 163                        error_with_usage("No file specified");
 164        }
 165
 166        check = attr_check_alloc();
 167        if (!all_attrs) {
 168                for (i = 0; i < cnt; i++) {
 169                        const struct git_attr *a = git_attr(argv[i]);
 170
 171                        if (!a)
 172                                return error("%s: not a valid attribute name",
 173                                             argv[i]);
 174                        attr_check_append(check, a);
 175                }
 176        }
 177
 178        if (stdin_paths)
 179                check_attr_stdin_paths(prefix, check, all_attrs);
 180        else {
 181                for (i = filei; i < argc; i++)
 182                        check_attr(prefix, check, all_attrs, argv[i]);
 183                maybe_flush_or_die(stdout, "attribute to stdout");
 184        }
 185
 186        attr_check_free(check);
 187        return 0;
 188}