From 7b97730b764cac823531ccd14669f9c5b45496dc Mon Sep 17 00:00:00 2001 From: Jeff King Date: Tue, 21 Jun 2011 23:17:35 -0400 Subject: [PATCH] upload-archive: allow user to turn off filters Some tar filters may be very expensive to run, so sites do not want to expose them via upload-archive. This patch lets users configure tar..remote to turn them off. By default, gzip filters are left on, as they are about as expensive as creating zip archives. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- Documentation/git-archive.txt | 6 ++++++ archive-tar.c | 11 ++++++++++- archive-zip.c | 2 +- archive.c | 11 ++++++----- archive.h | 3 ++- builtin/archive.c | 2 +- builtin/upload-archive.c | 2 +- t/t5000-tar-tree.sh | 25 ++++++++++++++++++++++--- 8 files changed, 49 insertions(+), 13 deletions(-) diff --git a/Documentation/git-archive.txt b/Documentation/git-archive.txt index 8b0080a97..1320c873a 100644 --- a/Documentation/git-archive.txt +++ b/Documentation/git-archive.txt @@ -114,6 +114,12 @@ tar..command:: The "tar.gz" and "tgz" formats are defined automatically and default to `gzip -cn`. You may override them with custom commands. +tar..remote:: + If true, enable `` for use by remote clients via + linkgit:git-upload-archive[1]. Defaults to false for + user-defined formats, but true for the "tar.gz" and "tgz" + formats. + ATTRIBUTES ---------- diff --git a/archive-tar.c b/archive-tar.c index f470ebea1..20af0051a 100644 --- a/archive-tar.c +++ b/archive-tar.c @@ -274,6 +274,13 @@ static int tar_filter_config(const char *var, const char *value, void *data) ar->data = xstrdup(value); return 0; } + if (!strcmp(type, "remote")) { + if (git_config_bool(var, value)) + ar->flags |= ARCHIVER_REMOTE; + else + ar->flags &= ~ARCHIVER_REMOTE; + return 0; + } return 0; } @@ -349,7 +356,7 @@ static int write_tar_filter_archive(const struct archiver *ar, static struct archiver tar_archiver = { "tar", write_tar_archive, - 0 + ARCHIVER_REMOTE }; void init_tar_archiver(void) @@ -358,7 +365,9 @@ void init_tar_archiver(void) register_archiver(&tar_archiver); tar_filter_config("tar.tgz.command", "gzip -cn", NULL); + tar_filter_config("tar.tgz.remote", "true", NULL); tar_filter_config("tar.tar.gz.command", "gzip -cn", NULL); + tar_filter_config("tar.tar.gz.remote", "true", NULL); git_config(git_tar_config, NULL); for (i = 0; i < nr_tar_filters; i++) { /* omit any filters that never had a command configured */ diff --git a/archive-zip.c b/archive-zip.c index 42df66080..3c102a164 100644 --- a/archive-zip.c +++ b/archive-zip.c @@ -283,7 +283,7 @@ static int write_zip_archive(const struct archiver *ar, static struct archiver zip_archiver = { "zip", write_zip_archive, - ARCHIVER_WANT_COMPRESSION_LEVELS + ARCHIVER_WANT_COMPRESSION_LEVELS|ARCHIVER_REMOTE }; void init_zip_archiver(void) diff --git a/archive.c b/archive.c index 41065a8e2..2a7a28e3e 100644 --- a/archive.c +++ b/archive.c @@ -299,7 +299,7 @@ static void parse_treeish_arg(const char **argv, static int parse_archive_args(int argc, const char **argv, const struct archiver **ar, struct archiver_args *args, - const char *name_hint) + const char *name_hint, int is_remote) { const char *format = NULL; const char *base = NULL; @@ -356,7 +356,8 @@ static int parse_archive_args(int argc, const char **argv, if (list) { for (i = 0; i < nr_archivers; i++) - printf("%s\n", archivers[i]->name); + if (!is_remote || archivers[i]->flags & ARCHIVER_REMOTE) + printf("%s\n", archivers[i]->name); exit(0); } @@ -369,7 +370,7 @@ static int parse_archive_args(int argc, const char **argv, if (argc < 1) usage_with_options(archive_usage, opts); *ar = lookup_archiver(format); - if (!*ar) + if (!*ar || (is_remote && !((*ar)->flags & ARCHIVER_REMOTE))) die("Unknown archive format '%s'", format); args->compression_level = Z_DEFAULT_COMPRESSION; @@ -390,7 +391,7 @@ static int parse_archive_args(int argc, const char **argv, } int write_archive(int argc, const char **argv, const char *prefix, - int setup_prefix, const char *name_hint) + int setup_prefix, const char *name_hint, int remote) { int nongit = 0; const struct archiver *ar = NULL; @@ -403,7 +404,7 @@ int write_archive(int argc, const char **argv, const char *prefix, init_tar_archiver(); init_zip_archiver(); - argc = parse_archive_args(argc, argv, &ar, &args, name_hint); + argc = parse_archive_args(argc, argv, &ar, &args, name_hint, remote); if (nongit) { /* * We know this will die() with an error, so we could just diff --git a/archive.h b/archive.h index 202d52872..2b0884f1e 100644 --- a/archive.h +++ b/archive.h @@ -15,6 +15,7 @@ struct archiver_args { }; #define ARCHIVER_WANT_COMPRESSION_LEVELS 1 +#define ARCHIVER_REMOTE 2 struct archiver { const char *name; int (*write_archive)(const struct archiver *, struct archiver_args *); @@ -29,7 +30,7 @@ extern void init_zip_archiver(void); typedef int (*write_archive_entry_fn_t)(struct archiver_args *args, const unsigned char *sha1, const char *path, size_t pathlen, unsigned int mode, void *buffer, unsigned long size); extern int write_archive_entries(struct archiver_args *args, write_archive_entry_fn_t write_entry); -extern int write_archive(int argc, const char **argv, const char *prefix, int setup_prefix, const char *name_hint); +extern int write_archive(int argc, const char **argv, const char *prefix, int setup_prefix, const char *name_hint, int remote); const char *archive_format_from_filename(const char *filename); diff --git a/builtin/archive.c b/builtin/archive.c index 2578cf57f..883c0092a 100644 --- a/builtin/archive.c +++ b/builtin/archive.c @@ -106,5 +106,5 @@ int cmd_archive(int argc, const char **argv, const char *prefix) setvbuf(stderr, NULL, _IOLBF, BUFSIZ); - return write_archive(argc, argv, prefix, 1, output); + return write_archive(argc, argv, prefix, 1, output, 0); } diff --git a/builtin/upload-archive.c b/builtin/upload-archive.c index e6bb97d34..2d0b38333 100644 --- a/builtin/upload-archive.c +++ b/builtin/upload-archive.c @@ -64,7 +64,7 @@ static int run_upload_archive(int argc, const char **argv, const char *prefix) sent_argv[sent_argc] = NULL; /* parse all options sent by the client */ - return write_archive(sent_argc, sent_argv, prefix, 0, NULL); + return write_archive(sent_argc, sent_argv, prefix, 0, NULL, 1); } __attribute__((format (printf, 1, 2))) diff --git a/t/t5000-tar-tree.sh b/t/t5000-tar-tree.sh index 070250ebb..9e3ba98fc 100755 --- a/t/t5000-tar-tree.sh +++ b/t/t5000-tar-tree.sh @@ -256,7 +256,8 @@ test_expect_success 'git-archive --prefix=olde-' ' test_expect_success 'setup tar filters' ' git config tar.tar.foo.command "tr ab ba" && - git config tar.bar.command "tr ab ba" + git config tar.bar.command "tr ab ba" && + git config tar.bar.remote true ' test_expect_success 'archive --list mentions user filter' ' @@ -265,9 +266,9 @@ test_expect_success 'archive --list mentions user filter' ' grep "^bar\$" output ' -test_expect_success 'archive --list shows remote user filters' ' +test_expect_success 'archive --list shows only enabled remote filters' ' git archive --list --remote=. >output && - grep "^tar\.foo\$" output && + ! grep "^tar\.foo\$" output && grep "^bar\$" output ' @@ -297,6 +298,13 @@ test_expect_success 'extension matching requires dot' ' test_cmp b.tar config-implicittar.foo ' +test_expect_success 'only enabled filters are available remotely' ' + test_must_fail git archive --remote=. --format=tar.foo HEAD \ + >remote.tar.foo && + git archive --remote=. --format=bar >remote.bar HEAD && + test_cmp remote.bar config.bar +' + if $GZIP --version >/dev/null 2>&1; then test_set_prereq GZIP else @@ -333,4 +341,15 @@ test_expect_success GZIP,GUNZIP 'extract tgz file' ' test_cmp b.tar j.tar ' +test_expect_success GZIP 'remote tar.gz is allowed by default' ' + git archive --remote=. --format=tar.gz HEAD >remote.tar.gz && + test_cmp j.tgz remote.tar.gz +' + +test_expect_success GZIP 'remote tar.gz can be disabled' ' + git config tar.tar.gz.remote false && + test_must_fail git archive --remote=. --format=tar.gz HEAD \ + >remote.tar.gz +' + test_done -- 2.26.2