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authorJohannes Schindelin <johannes.schindelin@gmx.de>2016-09-09 10:10:54 (GMT)
committerJunio C Hamano <gitster@pobox.com>2016-09-11 21:48:15 (GMT)
commit321459439e19517c412cab1cfbb64a2749f272c9 (patch)
treec554f8d87a9ba17218b7b96f4af7e18fd31eadfa /builtin/cat-file.c
parent7bcf341453572a227036afec76bdab451b798870 (diff)
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cat-file: support --textconv/--filters in batch mode
With this patch, --batch can be combined with --textconv or --filters. For this to work, the input needs to have the form <object name><single white space><path> so that the filters can be chosen appropriately. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/cat-file.c')
-rw-r--r--builtin/cat-file.c49
1 files changed, 44 insertions, 5 deletions
diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 51f4c54..59dea48 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -17,6 +17,7 @@ struct batch_options {
int print_contents;
int buffer_output;
int all_objects;
+ int cmdmode; /* may be 'w' or 'c' for --filters or --textconv */
const char *format;
};
@@ -280,7 +281,32 @@ static void print_object_or_die(struct batch_options *opt, struct expand_data *d
if (data->type == OBJ_BLOB) {
if (opt->buffer_output)
fflush(stdout);
- if (stream_blob_to_fd(1, sha1, NULL, 0) < 0)
+ if (opt->cmdmode) {
+ char *contents;
+ unsigned long size;
+
+ if (!data->rest)
+ die("missing path for '%s'", sha1_to_hex(sha1));
+
+ if (opt->cmdmode == 'w') {
+ if (filter_object(data->rest, 0100644, sha1,
+ &contents, &size))
+ die("could not convert '%s' %s",
+ sha1_to_hex(sha1), data->rest);
+ } else if (opt->cmdmode == 'c') {
+ enum object_type type;
+ if (!textconv_object(data->rest, 0100644, sha1,
+ 1, &contents, &size))
+ contents = read_sha1_file(sha1, &type,
+ &size);
+ if (!contents)
+ die("could not convert '%s' %s",
+ sha1_to_hex(sha1), data->rest);
+ } else
+ die("BUG: invalid cmdmode: %c", opt->cmdmode);
+ batch_write(opt, contents, size);
+ free(contents);
+ } else if (stream_blob_to_fd(1, sha1, NULL, 0) < 0)
die("unable to stream %s to stdout", sha1_to_hex(sha1));
}
else {
@@ -417,6 +443,8 @@ static int batch_objects(struct batch_options *opt)
data.mark_query = 1;
strbuf_expand(&buf, opt->format, expand_format, &data);
data.mark_query = 0;
+ if (opt->cmdmode)
+ data.split_on_whitespace = 1;
if (opt->all_objects) {
struct object_info empty;
@@ -482,7 +510,7 @@ static int batch_objects(struct batch_options *opt)
static const char * const cat_file_usage[] = {
N_("git cat-file (-t [--allow-unknown-type]|-s [--allow-unknown-type]|-e|-p|<type>|--textconv|--filters) [--path=<path>] <object>"),
- N_("git cat-file (--batch | --batch-check) [--follow-symlinks]"),
+ N_("git cat-file (--batch | --batch-check) [--follow-symlinks] [--textconv|--filters]"),
NULL
};
@@ -553,7 +581,9 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
argc = parse_options(argc, argv, prefix, options, cat_file_usage, 0);
if (opt) {
- if (argc == 1)
+ if (batch.enabled && (opt == 'c' || opt == 'w'))
+ batch.cmdmode = opt;
+ else if (argc == 1)
obj_name = argv[0];
else
usage_with_options(cat_file_usage, options);
@@ -565,8 +595,12 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
} else
usage_with_options(cat_file_usage, options);
}
- if (batch.enabled && (opt || argc)) {
- usage_with_options(cat_file_usage, options);
+ if (batch.enabled) {
+ if (batch.cmdmode != opt || argc)
+ usage_with_options(cat_file_usage, options);
+ if (batch.cmdmode && batch.all_objects)
+ die("--batch-all-objects cannot be combined with "
+ "--textconv nor with --filters");
}
if ((batch.follow_symlinks || batch.all_objects) && !batch.enabled) {
@@ -578,6 +612,11 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
usage_with_options(cat_file_usage, options);
}
+ if (force_path && batch.enabled) {
+ error("--path=<path> incompatible with --batch");
+ usage_with_options(cat_file_usage, options);
+ }
+
if (batch.buffer_output < 0)
batch.buffer_output = batch.all_objects;