diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-22 19:42:18 +0300 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2010-02-23 01:29:41 +0300 |
commit | 81b50f3ce40bfdd66e5d967bf82be001039a9a98 (patch) | |
tree | 7e86bb81e83c9fad73dcbdaa0ef33038137b4274 /builtin/hash-object.c | |
parent | 241b9254e1c8ff071d8054f8b6fbe1883b389d69 (diff) |
Move 'builtin-*' into a 'builtin/' subdirectory
This shrinks the top-level directory a bit, and makes it much more
pleasant to use auto-completion on the thing. Instead of
[torvalds@nehalem git]$ em buil<tab>
Display all 180 possibilities? (y or n)
[torvalds@nehalem git]$ em builtin-sh
builtin-shortlog.c builtin-show-branch.c builtin-show-ref.c
builtin-shortlog.o builtin-show-branch.o builtin-show-ref.o
[torvalds@nehalem git]$ em builtin-shor<tab>
builtin-shortlog.c builtin-shortlog.o
[torvalds@nehalem git]$ em builtin-shortlog.c
you get
[torvalds@nehalem git]$ em buil<tab> [type]
builtin/ builtin.h
[torvalds@nehalem git]$ em builtin [auto-completes to]
[torvalds@nehalem git]$ em builtin/sh<tab> [type]
shortlog.c shortlog.o show-branch.c show-branch.o show-ref.c show-ref.o
[torvalds@nehalem git]$ em builtin/sho [auto-completes to]
[torvalds@nehalem git]$ em builtin/shor<tab> [type]
shortlog.c shortlog.o
[torvalds@nehalem git]$ em builtin/shortlog.c
which doesn't seem all that different, but not having that annoying
break in "Display all 180 possibilities?" is quite a relief.
NOTE! If you do this in a clean tree (no object files etc), or using an
editor that has auto-completion rules that ignores '*.o' files, you
won't see that annoying 'Display all 180 possibilities?' message - it
will just show the choices instead. I think bash has some cut-off
around 100 choices or something.
So the reason I see this is that I'm using an odd editory, and thus
don't have the rules to cut down on auto-completion. But you can
simulate that by using 'ls' instead, or something similar.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/hash-object.c')
-rw-r--r-- | builtin/hash-object.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/builtin/hash-object.c b/builtin/hash-object.c new file mode 100644 index 0000000000..6a5f5b5f0e --- /dev/null +++ b/builtin/hash-object.c @@ -0,0 +1,134 @@ +/* + * GIT - The information manager from hell + * + * Copyright (C) Linus Torvalds, 2005 + * Copyright (C) Junio C Hamano, 2005 + */ +#include "cache.h" +#include "blob.h" +#include "quote.h" +#include "parse-options.h" +#include "exec_cmd.h" + +static void hash_fd(int fd, const char *type, int write_object, const char *path) +{ + struct stat st; + unsigned char sha1[20]; + if (fstat(fd, &st) < 0 || + index_fd(sha1, fd, &st, write_object, type_from_string(type), path)) + die(write_object + ? "Unable to add %s to database" + : "Unable to hash %s", path); + printf("%s\n", sha1_to_hex(sha1)); + maybe_flush_or_die(stdout, "hash to stdout"); +} + +static void hash_object(const char *path, const char *type, int write_object, + const char *vpath) +{ + int fd; + fd = open(path, O_RDONLY); + if (fd < 0) + die_errno("Cannot open '%s'", path); + hash_fd(fd, type, write_object, vpath); +} + +static void hash_stdin_paths(const char *type, int write_objects) +{ + struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT; + + while (strbuf_getline(&buf, stdin, '\n') != EOF) { + if (buf.buf[0] == '"') { + strbuf_reset(&nbuf); + if (unquote_c_style(&nbuf, buf.buf, NULL)) + die("line is badly quoted"); + strbuf_swap(&buf, &nbuf); + } + hash_object(buf.buf, type, write_objects, buf.buf); + } + strbuf_release(&buf); + strbuf_release(&nbuf); +} + +static const char * const hash_object_usage[] = { + "git hash-object [-t <type>] [-w] [--path=<file>|--no-filters] [--stdin] [--] <file>...", + "git hash-object --stdin-paths < <list-of-paths>", + NULL +}; + +static const char *type; +static int write_object; +static int hashstdin; +static int stdin_paths; +static int no_filters; +static const char *vpath; + +static const struct option hash_object_options[] = { + OPT_STRING('t', NULL, &type, "type", "object type"), + OPT_BOOLEAN('w', NULL, &write_object, "write the object into the object database"), + OPT_BOOLEAN( 0 , "stdin", &hashstdin, "read the object from stdin"), + OPT_BOOLEAN( 0 , "stdin-paths", &stdin_paths, "read file names from stdin"), + OPT_BOOLEAN( 0 , "no-filters", &no_filters, "store file as is without filters"), + OPT_STRING( 0 , "path", &vpath, "file", "process file as it were from this path"), + OPT_END() +}; + +int cmd_hash_object(int argc, const char **argv, const char *prefix) +{ + int i; + int prefix_length = -1; + const char *errstr = NULL; + + type = blob_type; + + argc = parse_options(argc, argv, NULL, hash_object_options, + hash_object_usage, 0); + + if (write_object) { + prefix = setup_git_directory(); + prefix_length = prefix ? strlen(prefix) : 0; + if (vpath && prefix) + vpath = prefix_filename(prefix, prefix_length, vpath); + } + + git_config(git_default_config, NULL); + + if (stdin_paths) { + if (hashstdin) + errstr = "Can't use --stdin-paths with --stdin"; + else if (argc) + errstr = "Can't specify files with --stdin-paths"; + else if (vpath) + errstr = "Can't use --stdin-paths with --path"; + else if (no_filters) + errstr = "Can't use --stdin-paths with --no-filters"; + } + else { + if (hashstdin > 1) + errstr = "Multiple --stdin arguments are not supported"; + if (vpath && no_filters) + errstr = "Can't use --path with --no-filters"; + } + + if (errstr) { + error("%s", errstr); + usage_with_options(hash_object_usage, hash_object_options); + } + + if (hashstdin) + hash_fd(0, type, write_object, vpath); + + for (i = 0 ; i < argc; i++) { + const char *arg = argv[i]; + + if (0 <= prefix_length) + arg = prefix_filename(prefix, prefix_length, arg); + hash_object(arg, type, write_object, + no_filters ? NULL : vpath ? vpath : arg); + } + + if (stdin_paths) + hash_stdin_paths(type, write_object); + + return 0; +} |