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authorJunio C Hamano <gitster@pobox.com>2014-03-23 23:57:28 (GMT)
committerJunio C Hamano <gitster@pobox.com>2014-03-24 17:43:35 (GMT)
commitec160ae12b0ae938ed5076b9f604e88976fc429c (patch)
tree5749b77dfdf7087398c2e9545a75b3779a2a4fb7 /builtin/update-index.c
parente703d7118c68bb5b1f850dae4060609a88500b18 (diff)
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update-index: teach --cacheinfo a new syntax "mode,sha1,path"
The "--cacheinfo" option is unusual in that it takes three option parameters. An option with an optional parameter is bad enough. An option with multiple parameters is simply insane. Introduce a new syntax that takes these three things concatenated together with a comma, which makes the command line syntax more uniform across subcommands, while retaining the traditional syntax for backward compatiblity. If we were designing the "update-index" subcommand from scratch today, it may probably have made sense to make this option (and possibly others) a command mode option that does not take any option parameter (hence no need for arg-help). But we do not live in such an ideal world, and as far as I can tell, the command still supports (and must support) mixed command modes in a single invocation, e.g. $ git update-index path1 --add path2 \ --cacheinfo 100644 $(git hash-object --stdin -w <path3) path3 \ path4 must make sure path1 is already in the index and update all of these four paths. So this is probably as far as we can go to fix this issue without risking to break people's existing scripts. Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/update-index.c')
-rw-r--r--builtin/update-index.c34
1 files changed, 31 insertions, 3 deletions
diff --git a/builtin/update-index.c b/builtin/update-index.c
index d12ad95..ba54e19 100644
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -629,14 +629,42 @@ static int resolve_undo_clear_callback(const struct option *opt,
return 0;
}
+static int parse_new_style_cacheinfo(const char *arg,
+ unsigned int *mode,
+ unsigned char sha1[],
+ const char **path)
+{
+ unsigned long ul;
+ char *endp;
+
+ errno = 0;
+ ul = strtoul(arg, &endp, 8);
+ if (errno || endp == arg || *endp != ',' || (unsigned int) ul != ul)
+ return -1; /* not a new-style cacheinfo */
+ *mode = ul;
+ endp++;
+ if (get_sha1_hex(endp, sha1) || endp[40] != ',')
+ return -1;
+ *path = endp + 41;
+ return 0;
+}
+
static int cacheinfo_callback(struct parse_opt_ctx_t *ctx,
const struct option *opt, int unset)
{
unsigned char sha1[20];
unsigned int mode;
+ const char *path;
+ if (!parse_new_style_cacheinfo(ctx->argv[1], &mode, sha1, &path)) {
+ if (add_cacheinfo(mode, sha1, path, 0))
+ die("git update-index: --cacheinfo cannot add %s", path);
+ ctx->argv++;
+ ctx->argc--;
+ return 0;
+ }
if (ctx->argc <= 3)
- return error("option 'cacheinfo' expects three arguments");
+ return error("option 'cacheinfo' expects <mode>,<sha1>,<path>");
if (strtoul_ui(*++ctx->argv, 8, &mode) ||
get_sha1_hex(*++ctx->argv, sha1) ||
add_cacheinfo(mode, sha1, *++ctx->argv, 0))
@@ -740,9 +768,9 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
PARSE_OPT_NOARG | PARSE_OPT_NONEG,
really_refresh_callback},
{OPTION_LOWLEVEL_CALLBACK, 0, "cacheinfo", NULL,
- N_("<mode> <object> <path>"),
+ N_("<mode>,<object>,<path>"),
N_("add the specified entry to the index"),
- PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */
+ PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */
PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
(parse_opt_cb *) cacheinfo_callback},
{OPTION_CALLBACK, 0, "chmod", &set_executable_bit, N_("(+/-)x"),