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[PATCH 01/16] Move enter_repo() to setup.c

From
Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Date
Mar 11, 2010, 13:22 UTC
Message-ID
<1268313754-28179-2-git-send-email-pclouds@gmail.com>
In-Reply-To
<1268313754-28179-1-git-send-email-pclouds@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 path.c  |   91 ---------------------------------------------------------------
 setup.c |   91 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 91 insertions(+), 91 deletions(-)
diff --git a/path.c b/path.c
index b4c8d91..f42eb1b 100644
--- a/path.c
+++ b/path.c
@@ -332,97 +332,6 @@ return_null:
 	return NULL;
 }
 
-/*
- * First, one directory to try is determined by the following algorithm.
- *
- * (0) If "strict" is given, the path is used as given and no DWIM is
- *     done. Otherwise:
- * (1) "~/path" to mean path under the running user's home directory;
- * (2) "~user/path" to mean path under named user's home directory;
- * (3) "relative/path" to mean cwd relative directory; or
- * (4) "/absolute/path" to mean absolute directory.
- *
- * Unless "strict" is given, we try access() for existence of "%s.git/.git",
- * "%s/.git", "%s.git", "%s" in this order.  The first one that exists is
- * what we try.
- *
- * Second, we try chdir() to that.  Upon failure, we return NULL.
- *
- * Then, we try if the current directory is a valid git repository.
- * Upon failure, we return NULL.
- *
- * If all goes well, we return the directory we used to chdir() (but
- * before ~user is expanded), avoiding getcwd() resolving symbolic
- * links.  User relative paths are also returned as they are given,
- * except DWIM suffixing.
- */
-char *enter_repo(char *path, int strict)
-{
-	static char used_path[PATH_MAX];
-	static char validated_path[PATH_MAX];
-
-	if (!path)
-		return NULL;
-
-	if (!strict) {
-		static const char *suffix[] = {
-			".git/.git", "/.git", ".git", "", NULL,
-		};
-		int len = strlen(path);
-		int i;
-		while ((1 < len) && (path[len-1] == '/')) {
-			path[len-1] = 0;
-			len--;
-		}
-		if (PATH_MAX <= len)
-			return NULL;
-		if (path[0] == '~') {
-			char *newpath = expand_user_path(path);
-			if (!newpath || (PATH_MAX - 10 < strlen(newpath))) {
-				free(newpath);
-				return NULL;
-			}
-			/*
-			 * Copy back into the static buffer. A pity
-			 * since newpath was not bounded, but other
-			 * branches of the if are limited by PATH_MAX
-			 * anyway.
-			 */
-			strcpy(used_path, newpath); free(newpath);
-			strcpy(validated_path, path);
-			path = used_path;
-		}
-		else if (PATH_MAX - 10 < len)
-			return NULL;
-		else {
-			path = strcpy(used_path, path);
-			strcpy(validated_path, path);
-		}
-		len = strlen(path);
-		for (i = 0; suffix[i]; i++) {
-			strcpy(path + len, suffix[i]);
-			if (!access(path, F_OK)) {
-				strcat(validated_path, suffix[i]);
-				break;
-			}
-		}
-		if (!suffix[i] || chdir(path))
-			return NULL;
-		path = validated_path;
-	}
-	else if (chdir(path))
-		return NULL;
-
-	if (access("objects", X_OK) == 0 && access("refs", X_OK) == 0 &&
-	    validate_headref("HEAD") == 0) {
-		set_git_dir(".");
-		check_repository_format();
-		return path;
-	}
-
-	return NULL;
-}
-
 int set_shared_perm(const char *path, int mode)
 {
 	struct stat st;
diff --git a/setup.c b/setup.c
index 8796c6f..3019da2 100644
--- a/setup.c
+++ b/setup.c
@@ -452,6 +452,97 @@ const char *setup_git_directory_gently(int *nongit_ok)
 	return prefix;
 }
 
+/*
+ * First, one directory to try is determined by the following algorithm.
+ *
+ * (0) If "strict" is given, the path is used as given and no DWIM is
+ *     done. Otherwise:
+ * (1) "~/path" to mean path under the running user's home directory;
+ * (2) "~user/path" to mean path under named user's home directory;
+ * (3) "relative/path" to mean cwd relative directory; or
+ * (4) "/absolute/path" to mean absolute directory.
+ *
+ * Unless "strict" is given, we try access() for existence of "%s.git/.git",
+ * "%s/.git", "%s.git", "%s" in this order.  The first one that exists is
+ * what we try.
+ *
+ * Second, we try chdir() to that.  Upon failure, we return NULL.
+ *
+ * Then, we try if the current directory is a valid git repository.
+ * Upon failure, we return NULL.
+ *
+ * If all goes well, we return the directory we used to chdir() (but
+ * before ~user is expanded), avoiding getcwd() resolving symbolic
+ * links.  User relative paths are also returned as they are given,
+ * except DWIM suffixing.
+ */
+char *enter_repo(char *path, int strict)
+{
+	static char used_path[PATH_MAX];
+	static char validated_path[PATH_MAX];
+
+	if (!path)
+		return NULL;
+
+	if (!strict) {
+		static const char *suffix[] = {
+			".git/.git", "/.git", ".git", "", NULL,
+		};
+		int len = strlen(path);
+		int i;
+		while ((1 < len) && (path[len-1] == '/')) {
+			path[len-1] = 0;
+			len--;
+		}
+		if (PATH_MAX <= len)
+			return NULL;
+		if (path[0] == '~') {
+			char *newpath = expand_user_path(path);
+			if (!newpath || (PATH_MAX - 10 < strlen(newpath))) {
+				free(newpath);
+				return NULL;
+			}
+			/*
+			 * Copy back into the static buffer. A pity
+			 * since newpath was not bounded, but other
+			 * branches of the if are limited by PATH_MAX
+			 * anyway.
+			 */
+			strcpy(used_path, newpath); free(newpath);
+			strcpy(validated_path, path);
+			path = used_path;
+		}
+		else if (PATH_MAX - 10 < len)
+			return NULL;
+		else {
+			path = strcpy(used_path, path);
+			strcpy(validated_path, path);
+		}
+		len = strlen(path);
+		for (i = 0; suffix[i]; i++) {
+			strcpy(path + len, suffix[i]);
+			if (!access(path, F_OK)) {
+				strcat(validated_path, suffix[i]);
+				break;
+			}
+		}
+		if (!suffix[i] || chdir(path))
+			return NULL;
+		path = validated_path;
+	}
+	else if (chdir(path))
+		return NULL;
+
+	if (access("objects", X_OK) == 0 && access("refs", X_OK) == 0 &&
+	    validate_headref("HEAD") == 0) {
+		set_git_dir(".");
+		check_repository_format();
+		return path;
+	}
+
+	return NULL;
+}
+
 int git_config_perm(const char *var, const char *value)
 {
 	int i;
-- 
1.7.0.1.384.g6abcaa
Previous: Nguyễn Thái Ngọc DuyNext: Nguyễn Thái Ngọc Duy
Message 2 of 20 in “nd/setup part two”
  1. 00/16 nd/setup part twoNguyễn Thái Ngọc Duy, Mar 11, 2010
  2. 01/16 Move enter_repo() to setup.cNguyễn Thái Ngọc Duy, Mar 11, 2010
  3. 02/16 enter_repo(): initialize other variables as setup_git_directory_gently() doesNguyễn Thái Ngọc Duy, Mar 11, 2010
  4. 03/16 rev-parse --git-dir: print relative gitdir correctlyNguyễn Thái Ngọc Duy, Mar 11, 2010
  5. 04/16 worktree setup: call set_git_dir explicitlyNguyễn Thái Ngọc Duy, Mar 11, 2010
  6. Junio C HamanoMar 11, 2010
  7. 05/16 Add git_config_early()Nguyễn Thái Ngọc Duy, Mar 11, 2010
  8. 06/16 Use git_config_early() instead of git_config() during repo setupNguyễn Thái Ngọc Duy, Mar 11, 2010
  9. Nguyen Thai Ngoc DuyMar 12, 2010
  10. 07/16 worktree setup: restore original state when things go wrongNguyễn Thái Ngọc Duy, Mar 11, 2010
  11. 08/16 init/clone: turn on startup->have_repository properlyNguyễn Thái Ngọc Duy, Mar 11, 2010
  12. 09/16 git_config(): do not read .git/config if there is no repositoryNguyễn Thái Ngọc Duy, Mar 11, 2010
  13. 10/16 Do not read .git/info/exclude if there is no repositoryNguyễn Thái Ngọc Duy, Mar 11, 2010
  14. 11/16 Do not read .git/info/attributes if there is no repositoryNguyễn Thái Ngọc Duy, Mar 11, 2010
  15. 12/16 apply: do not check sha1 when repository has not been foundNguyễn Thái Ngọc Duy, Mar 11, 2010
  16. 13/16 config: do not read .git/config if there is no repositoryNguyễn Thái Ngọc Duy, Mar 11, 2010
  17. 14/16 Allow to undo setup_git_directory_gently() gracefully (and fix alias code)Nguyễn Thái Ngọc Duy, Mar 11, 2010
  18. 15/16 alias: keep repository found while collecting aliases as long as possibleNguyễn Thái Ngọc Duy, Mar 11, 2010
  19. 16/16 Guard unallowed access to repository when it's not set upNguyễn Thái Ngọc Duy, Mar 11, 2010
  20. Nguyen Thai Ngoc DuyMar 20, 2010

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