From 3ec6b309505dc5f7ba14abe8861b02da34a9df0b Mon Sep 17 00:00:00 2001 From: Lars Hjemli Date: Mon, 6 Jun 2011 19:29:58 +0000 Subject: cgit.c: always setup cgit repo environment variables When cgit learned to setup environment variables for certain repo settings before invoking a filter process, the setup occurred inside cgit_open_filter(). This patch moves the setup out of cgit_open_filter() and into prepare_repo_cmd() to prepare for additional uses of these variables. Reviewed-by: Ferry Huberts Signed-off-by: Lars Hjemli --- cgit.c | 1 + cgit.h | 4 +++- shared.c | 7 +++---- ui-commit.c | 6 +++--- ui-repolist.c | 2 +- ui-snapshot.c | 2 +- ui-summary.c | 2 +- ui-tree.c | 2 +- 8 files changed, 14 insertions(+), 12 deletions(-) diff --git a/cgit.c b/cgit.c index 6be3754..dd40893 100644 --- a/cgit.c +++ b/cgit.c @@ -463,6 +463,7 @@ static int prepare_repo_cmd(struct cgit_context *ctx) cgit_print_docend(); return 1; } + cgit_prepare_repo_env(ctx->repo); return 0; } diff --git a/cgit.h b/cgit.h index caa9d8e..df7ee5d 100644 --- a/cgit.h +++ b/cgit.h @@ -319,9 +319,11 @@ extern const char *cgit_repobasename(const char *reponame); extern int cgit_parse_snapshots_mask(const char *str); -extern int cgit_open_filter(struct cgit_filter *filter, struct cgit_repo * repo); +extern int cgit_open_filter(struct cgit_filter *filter); extern int cgit_close_filter(struct cgit_filter *filter); +extern void cgit_prepare_repo_env(struct cgit_repo * repo); + extern int readfile(const char *path, char **buf, size_t *size); extern char *expand_macros(const char *txt); diff --git a/shared.c b/shared.c index be2ae59..4adeaa8 100644 --- a/shared.c +++ b/shared.c @@ -374,7 +374,8 @@ typedef struct { char * value; } cgit_env_var; -static void prepare_env(struct cgit_repo * repo) { +void cgit_prepare_repo_env(struct cgit_repo * repo) +{ cgit_env_var env_vars[] = { { .name = "CGIT_REPO_URL", .value = repo->url }, { .name = "CGIT_REPO_NAME", .value = repo->name }, @@ -395,7 +396,7 @@ static void prepare_env(struct cgit_repo * repo) { fprintf(stderr, warn, p->name, p->value); } -int cgit_open_filter(struct cgit_filter *filter, struct cgit_repo * repo) +int cgit_open_filter(struct cgit_filter *filter) { filter->old_stdout = chk_positive(dup(STDOUT_FILENO), @@ -406,8 +407,6 @@ int cgit_open_filter(struct cgit_filter *filter, struct cgit_repo * repo) close(filter->pipe_fh[1]); chk_non_negative(dup2(filter->pipe_fh[0], STDIN_FILENO), "Unable to use pipe as STDIN"); - if (repo) - prepare_env(repo); execvp(filter->cmd, filter->argv); die("Unable to exec subprocess %s: %s (%d)", filter->cmd, strerror(errno), errno); diff --git a/ui-commit.c b/ui-commit.c index a69dec6..536a8e8 100644 --- a/ui-commit.c +++ b/ui-commit.c @@ -106,7 +106,7 @@ void cgit_print_commit(char *hex, const char *prefix) html("\n"); html("
"); if (ctx.repo->commit_filter) - cgit_open_filter(ctx.repo->commit_filter, ctx.repo); + cgit_open_filter(ctx.repo->commit_filter); html_txt(info->subject); if (ctx.repo->commit_filter) cgit_close_filter(ctx.repo->commit_filter); @@ -114,7 +114,7 @@ void cgit_print_commit(char *hex, const char *prefix) html("
"); html("
"); if (ctx.repo->commit_filter) - cgit_open_filter(ctx.repo->commit_filter, ctx.repo); + cgit_open_filter(ctx.repo->commit_filter); html_txt(info->msg); if (ctx.repo->commit_filter) cgit_close_filter(ctx.repo->commit_filter); @@ -123,7 +123,7 @@ void cgit_print_commit(char *hex, const char *prefix) html("
Notes
"); html("
"); if (ctx.repo->commit_filter) - cgit_open_filter(ctx.repo->commit_filter, ctx.repo); + cgit_open_filter(ctx.repo->commit_filter); html_txt(notes.buf); if (ctx.repo->commit_filter) cgit_close_filter(ctx.repo->commit_filter); diff --git a/ui-repolist.c b/ui-repolist.c index dce2eac..25c36ce 100644 --- a/ui-repolist.c +++ b/ui-repolist.c @@ -300,7 +300,7 @@ void cgit_print_site_readme() if (!ctx.cfg.root_readme) return; if (ctx.cfg.about_filter) - cgit_open_filter(ctx.cfg.about_filter, NULL); + cgit_open_filter(ctx.cfg.about_filter); html_include(ctx.cfg.root_readme); if (ctx.cfg.about_filter) cgit_close_filter(ctx.cfg.about_filter); diff --git a/ui-snapshot.c b/ui-snapshot.c index 126779d..07cc944 100644 --- a/ui-snapshot.c +++ b/ui-snapshot.c @@ -19,7 +19,7 @@ static int write_compressed_tar_archive(struct archiver_args *args,const char *f f.argv = malloc(2 * sizeof(char *)); f.argv[0] = f.cmd; f.argv[1] = NULL; - cgit_open_filter(&f, NULL); + cgit_open_filter(&f); rv = write_tar_archive(args); cgit_close_filter(&f); return rv; diff --git a/ui-summary.c b/ui-summary.c index 1e9a1b6..5be2545 100644 --- a/ui-summary.c +++ b/ui-summary.c @@ -113,7 +113,7 @@ void cgit_print_repo_readme(char *path) */ html("
"); if (ctx.repo->about_filter) - cgit_open_filter(ctx.repo->about_filter, ctx.repo); + cgit_open_filter(ctx.repo->about_filter); if (ref) cgit_print_file(tmp, ref); else diff --git a/ui-tree.c b/ui-tree.c index 2d8d2f3..442b6be 100644 --- a/ui-tree.c +++ b/ui-tree.c @@ -45,7 +45,7 @@ static void print_text_buffer(const char *name, char *buf, unsigned long size) if (ctx.repo->source_filter) { html("
");
 		ctx.repo->source_filter->argv[1] = xstrdup(name);
-		cgit_open_filter(ctx.repo->source_filter, ctx.repo);
+		cgit_open_filter(ctx.repo->source_filter);
 		html_raw(buf, size);
 		cgit_close_filter(ctx.repo->source_filter);
 		free(ctx.repo->source_filter->argv[1]);
-- 
cgit v1.2.3-57-g22cb


From a1429dbc89f9c0945e32cea9fd3424d2fe56aeab Mon Sep 17 00:00:00 2001
From: Lars Hjemli 
Date: Mon, 6 Jun 2011 20:49:13 +0000
Subject: cgit.c: add 'clone-url' setting with support for macro expansion

The current 'clone-prefix' setting has some known issues:
* All repos get the same 'clone-prefix' value since the setting is not
  adopted during repo registration (in cgitrc, or during scan-path traversal),
  but only when the setting is used.
* The generated clone-urls for a repo is a combination of 'clone-prefix', a
  slash and the repo url. This doesn't work well with e.g. ssh-style urls
  like 'git@example.org:repo.git', since the inserted slash will make the
  repo relative to the filesystem root.
* If 'remove-suffix' is enabled, the generated clone-urls will not work for
  cloning (except for http-urls to cgit itself) since they miss the '.git'
  suffix.

The new 'clone-url' setting is designed to avoid the mentioned issues:
* Each repo adopts the default 'clone-url' when the repo is defined. This
  allows different groups of repos to adopt different values.
* The clone-urls for a repo is generated by expanding environment variables
  in a string template without inserting arbitrary characters, hence any
  kind of clone-url can be generated.
* Macro expansion also eases the 'remove-suffix' pain since it's now
  possible to define e.g. 'clone-url=git://foo.org/$CGIT_REPO_URL.git' for
  a set of repos. A furter improvement would be to define e.g.
  $CGIT_REPO_SUFFIX to '.git' for all repos which had their url prettified,
  or to store the original $CGIT_REPO_URL in e.g. $CGIT_REPO_REAL_URL before
  suffix removal.

Reviewed-by: Ferry Huberts 
Signed-off-by: Lars Hjemli 
---
 cgit.c                 |  2 ++
 cgit.h                 |  1 +
 cgitrc.5.txt           | 17 ++++++++++++++---
 shared.c               |  1 +
 tests/setup.sh         |  1 +
 tests/t0102-summary.sh |  6 ++++++
 ui-summary.c           |  2 +-
 7 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/cgit.c b/cgit.c
index dd40893..51ca78a 100644
--- a/cgit.c
+++ b/cgit.c
@@ -244,6 +244,8 @@ void config_cb(const char *name, const char *value)
 		ctx.cfg.robots = xstrdup(value);
 	else if (!strcmp(name, "clone-prefix"))
 		ctx.cfg.clone_prefix = xstrdup(value);
+	else if (!strcmp(name, "clone-url"))
+		ctx.cfg.clone_url = xstrdup(value);
 	else if (!strcmp(name, "local-time"))
 		ctx.cfg.local_time = atoi(value);
 	else if (!prefixcmp(name, "mimetype."))
diff --git a/cgit.h b/cgit.h
index df7ee5d..bad66f0 100644
--- a/cgit.h
+++ b/cgit.h
@@ -165,6 +165,7 @@ struct cgit_config {
 	char *agefile;
 	char *cache_root;
 	char *clone_prefix;
+	char *clone_url;
 	char *css;
 	char *favicon;
 	char *footer;
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index 9a9965b..5ba8134 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -76,6 +76,11 @@ clone-prefix::
 	setting is only used if `repo.clone-url` is unspecified. Default value:
 	none.
 
+clone-url::
+	Space-separated list of clone-url templates. This setting is only
+	used if `repo.clone-url` is unspecified. Default value: none. See
+	also: "MACRO EXPANSION", "FILTER API".
+
 commit-filter::
 	Specifies a command which will be invoked to format commit messages.
 	The command will get the message on its STDIN, and the STDOUT from the
@@ -363,7 +368,7 @@ repo.about-filter::
 
 repo.clone-url::
 	A list of space-separated urls which can be used to clone this repo.
-	Default value: none.
+	Default value: none. See also: "MACRO EXPANSION".
 
 repo.commit-filter::
 	Override the default commit-filter. Default value: none. See also:
@@ -511,6 +516,12 @@ can be accomplished by adding the following line to /etc/cgitrc:
 
 	include=/etc/cgitrc.d/$HTTP_HOST
 
+The following options are expanded during request processing, and support
+the environment variables defined in "FILTER API":
+
+- clone-url
+- repo.clone-url
+
 
 EXAMPLE CGITRC FILE
 -------------------
@@ -520,8 +531,8 @@ EXAMPLE CGITRC FILE
 cache-size=1000
 
 
-# Specify some default clone prefixes
-clone-prefix=git://example.com ssh://example.com/pub/git http://example.com/git
+# Specify some default clone urls using macro expansion
+clone-url=git://foo.org/$CGIT_REPO_URL git@foo.org:$CGIT_REPO_URL
 
 # Specify the css url
 css=/css/cgit.css
diff --git a/shared.c b/shared.c
index 4adeaa8..699c362 100644
--- a/shared.c
+++ b/shared.c
@@ -70,6 +70,7 @@ struct cgit_repo *cgit_add_repo(const char *url)
 	ret->about_filter = ctx.cfg.about_filter;
 	ret->commit_filter = ctx.cfg.commit_filter;
 	ret->source_filter = ctx.cfg.source_filter;
+	ret->clone_url = ctx.cfg.clone_url;
 	return ret;
 }
 
diff --git a/tests/setup.sh b/tests/setup.sh
index b2f1169..1e06107 100755
--- a/tests/setup.sh
+++ b/tests/setup.sh
@@ -62,6 +62,7 @@ enable-log-linecount=1
 summary-log=5
 summary-branches=5
 summary-tags=5
+clone-url=git://example.org/\$CGIT_REPO_URL.git
 
 repo.url=foo
 repo.path=$PWD/trash/repos/foo/.git
diff --git a/tests/t0102-summary.sh b/tests/t0102-summary.sh
index f0b0d9a..f299c5a 100755
--- a/tests/t0102-summary.sh
+++ b/tests/t0102-summary.sh
@@ -9,6 +9,9 @@ run_test 'find commit 1' 'grep -e "commit 1" trash/tmp'
 run_test 'find commit 5' 'grep -e "commit 5" trash/tmp'
 run_test 'find branch master' 'grep -e "master" trash/tmp'
 run_test 'no tags' '! grep -e "tags" trash/tmp'
+run_test 'clone-url expanded correctly' '
+	grep -e "git://example.org/foo.git" trash/tmp
+'
 
 run_test 'generate bar summary' 'cgit_url "bar" >trash/tmp'
 run_test 'no commit 45' '! grep -e "commit 45" trash/tmp'
@@ -16,5 +19,8 @@ run_test 'find commit 46' 'grep -e "commit 46" trash/tmp'
 run_test 'find commit 50' 'grep -e "commit 50" trash/tmp'
 run_test 'find branch master' 'grep -e "master" trash/tmp'
 run_test 'no tags' '! grep -e "tags" trash/tmp'
+run_test 'clone-url expanded correctly' '
+	grep -e "git://example.org/bar.git" trash/tmp
+'
 
 tests_done
diff --git a/ui-summary.c b/ui-summary.c
index 5be2545..227ed27 100644
--- a/ui-summary.c
+++ b/ui-summary.c
@@ -62,7 +62,7 @@ void cgit_print_summary()
 			       NULL, NULL, 0, 0);
 	}
 	if (ctx.repo->clone_url)
-		print_urls(ctx.repo->clone_url, NULL);
+		print_urls(expand_macros(ctx.repo->clone_url), NULL);
 	else if (ctx.cfg.clone_prefix)
 		print_urls(ctx.cfg.clone_prefix, ctx.repo->url);
 	html("");
-- 
cgit v1.2.3-57-g22cb