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authorDmitry Potapov <dpotapov@gmail.com>2008-10-07 04:16:52 +0400
committerShawn O. Pearce <spearce@spearce.org>2008-10-12 13:21:59 -0700
commitb4666852a06af0c969ad8f1c444d0b48c4451e76 (patch)
tree8bf6bc3580c3e03d3277828bdf47a2f1fc7770be /builtin-check-attr.c
parent41038c5e1534a6abef21ec4cfc216d13d0ac2fb5 (diff)
downloadgit-b4666852a06af0c969ad8f1c444d0b48c4451e76.tar.gz
check-attr: Add --stdin option
This allows multiple paths to be specified on stdin. Signed-off-by: Dmitry Potapov <dpotapov@gmail.com> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Diffstat (limited to 'builtin-check-attr.c')
-rw-r--r--builtin-check-attr.c75
1 files changed, 64 insertions, 11 deletions
diff --git a/builtin-check-attr.c b/builtin-check-attr.c
index 786256ed1e..4921341e33 100644
--- a/builtin-check-attr.c
+++ b/builtin-check-attr.c
@@ -2,9 +2,23 @@
#include "cache.h"
#include "attr.h"
#include "quote.h"
+#include "parse-options.h"
-static const char check_attr_usage[] =
-"git check-attr attr... [--] pathname...";
+static int stdin_paths;
+static const char * const check_attr_usage[] = {
+"git check-attr attr... [--] pathname...",
+"git check-attr --stdin attr... < <list-of-paths>",
+NULL
+};
+
+static int null_term_line;
+
+static const struct option check_attr_options[] = {
+ OPT_BOOLEAN(0 , "stdin", &stdin_paths, "read file names from stdin"),
+ OPT_BOOLEAN('z', NULL, &null_term_line,
+ "input paths are terminated by a null character"),
+ OPT_END()
+};
static void check_attr(int cnt, struct git_attr_check *check,
const char** name, const char *file)
@@ -27,17 +41,45 @@ static void check_attr(int cnt, struct git_attr_check *check,
}
}
+static void check_attr_stdin_paths(int cnt, struct git_attr_check *check,
+ const char** name)
+{
+ struct strbuf buf, nbuf;
+ int line_termination = null_term_line ? 0 : '\n';
+
+ strbuf_init(&buf, 0);
+ strbuf_init(&nbuf, 0);
+ while (strbuf_getline(&buf, stdin, line_termination) != EOF) {
+ if (line_termination && buf.buf[0] == '"') {
+ strbuf_reset(&nbuf);
+ if (unquote_c_style(&nbuf, buf.buf, NULL))
+ die("line is badly quoted");
+ strbuf_swap(&buf, &nbuf);
+ }
+ check_attr(cnt, check, name, buf.buf);
+ maybe_flush_or_die(stdout, "attribute to stdout");
+ }
+ strbuf_release(&buf);
+ strbuf_release(&nbuf);
+}
+
int cmd_check_attr(int argc, const char **argv, const char *prefix)
{
struct git_attr_check *check;
int cnt, i, doubledash;
+ const char *errstr = NULL;
+
+ argc = parse_options(argc, argv, check_attr_options, check_attr_usage,
+ PARSE_OPT_KEEP_DASHDASH);
+ if (!argc)
+ usage_with_options(check_attr_usage, check_attr_options);
if (read_cache() < 0) {
die("invalid cache");
}
doubledash = -1;
- for (i = 1; doubledash < 0 && i < argc; i++) {
+ for (i = 0; doubledash < 0 && i < argc; i++) {
if (!strcmp(argv[i], "--"))
doubledash = i;
}
@@ -45,26 +87,37 @@ int cmd_check_attr(int argc, const char **argv, const char *prefix)
/* If there is no double dash, we handle only one attribute */
if (doubledash < 0) {
cnt = 1;
- doubledash = 1;
+ doubledash = 0;
} else
- cnt = doubledash - 1;
+ cnt = doubledash;
doubledash++;
- if (cnt <= 0 || argc < doubledash)
- usage(check_attr_usage);
+ if (cnt <= 0)
+ errstr = "No attribute specified";
+ else if (stdin_paths && doubledash < argc)
+ errstr = "Can't specify files with --stdin";
+ if (errstr) {
+ error (errstr);
+ usage_with_options(check_attr_usage, check_attr_options);
+ }
+
check = xcalloc(cnt, sizeof(*check));
for (i = 0; i < cnt; i++) {
const char *name;
struct git_attr *a;
- name = argv[i + 1];
+ name = argv[i];
a = git_attr(name, strlen(name));
if (!a)
return error("%s: not a valid attribute name", name);
check[i].attr = a;
}
- for (i = doubledash; i < argc; i++)
- check_attr(cnt, check, argv+1, argv[i]);
- maybe_flush_or_die(stdout, "attribute to stdout");
+ if (stdin_paths)
+ check_attr_stdin_paths(cnt, check, argv);
+ else {
+ for (i = doubledash; i < argc; i++)
+ check_attr(cnt, check, argv, argv[i]);
+ maybe_flush_or_die(stdout, "attribute to stdout");
+ }
return 0;
}