diff options
| -rw-r--r-- | Documentation/git-cat-file.txt | 14 | ||||
| -rw-r--r-- | builtin/cat-file.c | 31 | ||||
| -rwxr-xr-x | t/t1006-cat-file.sh | 15 |
3 files changed, 55 insertions, 5 deletions
diff --git a/Documentation/git-cat-file.txt b/Documentation/git-cat-file.txt index 10fbc6a373..21cffe2bcd 100644 --- a/Documentation/git-cat-file.txt +++ b/Documentation/git-cat-file.txt @@ -86,10 +86,9 @@ BATCH OUTPUT ------------ If `--batch` or `--batch-check` is given, `cat-file` will read objects -from stdin, one per line, and print information about them. - -Each line is considered as a whole object name, and is parsed as if -given to linkgit:git-rev-parse[1]. +from stdin, one per line, and print information about them. By default, +the whole line is considered as an object, as if it were fed to +linkgit:git-rev-parse[1]. You can specify the information shown for each object by using a custom `<format>`. The `<format>` is copied literally to stdout for each @@ -110,6 +109,13 @@ newline. The available atoms are: The size, in bytes, that the object takes up on disk. See the note about on-disk sizes in the `CAVEATS` section below. +`rest`:: + If this atom is used in the output string, input lines are split + at the first whitespace boundary. All characters before that + whitespace are considered to be the object name; characters + after that first run of whitespace (i.e., the "rest" of the + line) are output in place of the `%(rest)` atom. + If no format is specified, the default format is `%(objectname) %(objecttype) %(objectsize)`. diff --git a/builtin/cat-file.c b/builtin/cat-file.c index 425346048b..41afaa534b 100644 --- a/builtin/cat-file.c +++ b/builtin/cat-file.c @@ -119,6 +119,7 @@ struct expand_data { enum object_type type; unsigned long size; unsigned long disk_size; + const char *rest; /* * If mark_query is true, we do not expand anything, but rather @@ -127,6 +128,13 @@ struct expand_data { int mark_query; /* + * Whether to split the input on whitespace before feeding it to + * get_sha1; this is decided during the mark_query phase based on + * whether we have a %(rest) token in our format. + */ + int split_on_whitespace; + + /* * After a mark_query run, this object_info is set up to be * passed to sha1_object_info_extended. It will point to the data * elements above, so you can retrieve the response from there. @@ -163,6 +171,11 @@ static void expand_atom(struct strbuf *sb, const char *atom, int len, data->info.disk_sizep = &data->disk_size; else strbuf_addf(sb, "%lu", data->disk_size); + } else if (is_atom("rest", atom, len)) { + if (data->mark_query) + data->split_on_whitespace = 1; + else if (data->rest) + strbuf_addstr(sb, data->rest); } else die("unknown format element: %.*s", len, atom); } @@ -273,7 +286,23 @@ static int batch_objects(struct batch_options *opt) warn_on_object_refname_ambiguity = 0; while (strbuf_getline(&buf, stdin, '\n') != EOF) { - int error = batch_one_object(buf.buf, opt, &data); + int error; + + if (data.split_on_whitespace) { + /* + * Split at first whitespace, tying off the beginning + * of the string and saving the remainder (or NULL) in + * data.rest. + */ + char *p = strpbrk(buf.buf, " \t"); + if (p) { + while (*p && strchr(" \t", *p)) + *p++ = '\0'; + } + data.rest = p; + } + + error = batch_one_object(buf.buf, opt, &data); if (error) return error; } diff --git a/t/t1006-cat-file.sh b/t/t1006-cat-file.sh index 4e911fb43d..a420742494 100755 --- a/t/t1006-cat-file.sh +++ b/t/t1006-cat-file.sh @@ -78,6 +78,13 @@ $content" echo $sha1 | git cat-file --batch-check="%(objecttype) %(objectname)" >actual && test_cmp expect actual ' + + test_expect_success '--batch-check with %(rest)' ' + echo "$type this is some extra content" >expect && + echo "$sha1 this is some extra content" | + git cat-file --batch-check="%(objecttype) %(rest)" >actual && + test_cmp expect actual + ' } hello_content="Hello World" @@ -91,6 +98,14 @@ test_expect_success "setup" ' run_tests 'blob' $hello_sha1 $hello_size "$hello_content" "$hello_content" +test_expect_success '--batch-check without %(rest) considers whole line' ' + echo "$hello_sha1 blob $hello_size" >expect && + git update-index --add --cacheinfo 100644 $hello_sha1 "white space" && + test_when_finished "git update-index --remove \"white space\"" && + echo ":white space" | git cat-file --batch-check >actual && + test_cmp expect actual +' + tree_sha1=$(git write-tree) tree_size=33 tree_pretty_content="100644 blob $hello_sha1 hello" |