[PATCH] hash-object: cleanup handling of command line options
From: Gerrit Pape <hidden>
Date: 2016-06-15 22:44:15
Subsystem:
the rest · Maintainer:
Linus Torvalds
git hash-object used to process the --stdin command line argument
before reading subsequent arguments. This caused 'git hash-object
--stdin -w' to fail to actually write the object into the
database, while '-w --stdin' properly did. Now git hash-object
first reads all arguments, and then processes them.
This regresses one insane use case. git hash-object used to allow
multiple --stdin arguments on the command line:
$ git hash-object --stdin --stdin
foo
^D
bar
^D
Now git hash-object errors out if --stdin is given more than once.
Reported by Josh Triplett through
http://bugs.debian.org/464432
Signed-off-by: Gerrit Pape <redacted>
---
On Fri, Feb 15, 2008 at 09:31:10AM -0800, Junio C Hamano wrote:Having said all that, I think "--stdin file2 <file1" behaviour can be kept without regressing by a patch like this on top of your fix, and we can drop the first "regression warning" in the commit log message if we did so.
Yes, this seems the better choice. I adapted the commit message a bit, and swapped file0 and file1 in the test description and the selftest where appropriate, it's been mixed up. Regards, Gerrit. hash-object.c | 12 +++++++++++- t/t5303-hash-object.sh | 35 +++++++++++++++++++++++++++++++++++ 2 files changed, 46 insertions(+), 1 deletions(-) create mode 100755 t/t5303-hash-object.sh
diff --git a/hash-object.c b/hash-object.c
index 0a58f3f..61e7160 100644
--- a/hash-object.c
+++ b/hash-object.c@@ -41,6 +41,7 @@ int main(int argc, char **argv) const char *prefix = NULL; int prefix_length = -1; int no_more_flags = 0; + int hashstdin = 0; git_config(git_default_config);
@@ -65,13 +66,20 @@ int main(int argc, char **argv) else if (!strcmp(argv[i], "--help")) usage(hash_object_usage); else if (!strcmp(argv[i], "--stdin")) { - hash_stdin(type, write_object); + if (hashstdin) + die("Multiple --stdin arguments are not supported"); + hashstdin = 1; } else usage(hash_object_usage); } else { const char *arg = argv[i]; + + if (hashstdin) { + hash_stdin(type, write_object); + hashstdin = 0; + } if (0 <= prefix_length) arg = prefix_filename(prefix, prefix_length, arg);
@@ -79,5 +87,7 @@ int main(int argc, char **argv) no_more_flags = 1; } } + if (hashstdin) + hash_stdin(type, write_object); return 0; }
diff --git a/t/t5303-hash-object.sh b/t/t5303-hash-object.sh
new file mode 100755
index 0000000..543c078
--- /dev/null
+++ b/t/t5303-hash-object.sh@@ -0,0 +1,35 @@ +#!/bin/sh + +test_description=git-hash-object + +. ./test-lib.sh + +test_expect_success \ + 'git hash-object -w --stdin saves the object' \ + 'obname=$(echo foo | git hash-object -w --stdin) && + obpath=$(echo $obname | sed -e "s/\(..\)/\1\//") && + test -r .git/objects/"$obpath" && + rm -f .git/objects/"$obpath"' + +test_expect_success \ + 'git hash-object --stdin -w saves the object' \ + 'obname=$(echo foo | git hash-object --stdin -w) && + obpath=$(echo $obname | sed -e "s/\(..\)/\1\//") && + test -r .git/objects/"$obpath" && + rm -f .git/objects/"$obpath"' + +test_expect_success \ + 'git hash-object --stdin file1 <file0 first operates on file0, then file1' \ + 'echo foo > file1 && + obname0=$(echo bar | git hash-object --stdin) && + obname1=$(git hash-object file1) && + obname0new=$(echo bar | git hash-object --stdin file1 | sed -n -e 1p) && + obname1new=$(echo bar | git hash-object --stdin file1 | sed -n -e 2p) && + test "$obname0" = "$obname0new" && + test "$obname1" = "$obname1new"' + +test_expect_success \ + 'git hash-object refuses multiple --stdin arguments' \ + '! git hash-object --stdin --stdin < file1' + +test_done
--
1.5.4.2