diff options
Diffstat (limited to 'setup.c')
| -rw-r--r-- | setup.c | 61 |
1 files changed, 33 insertions, 28 deletions
@@ -18,9 +18,12 @@ const char *prefix_path(const char *prefix, int len, const char *path) if (normalize_path_copy(sanitized, sanitized)) goto error_out; if (is_absolute_path(orig)) { + size_t len, total; const char *work_tree = get_git_work_tree(); - size_t len = strlen(work_tree); - size_t total = strlen(sanitized) + 1; + if (!work_tree) + goto error_out; + len = strlen(work_tree); + total = strlen(sanitized) + 1; if (strncmp(sanitized, work_tree, len) || (sanitized[len] != '\0' && sanitized[len] != '/')) { error_out: @@ -41,7 +44,7 @@ const char *prefix_path(const char *prefix, int len, const char *path) const char *prefix_filename(const char *pfx, int pfx_len, const char *arg) { static char path[PATH_MAX]; -#ifndef __MINGW32__ +#ifndef WIN32 if (!pfx || !*pfx || is_absolute_path(arg)) return arg; memcpy(path, pfx, pfx_len); @@ -61,6 +64,19 @@ const char *prefix_filename(const char *pfx, int pfx_len, const char *arg) return path; } +int check_filename(const char *prefix, const char *arg) +{ + const char *name; + struct stat st; + + name = prefix ? prefix_filename(prefix, strlen(prefix), arg) : arg; + if (!lstat(name, &st)) + return 1; /* file exists */ + if (errno == ENOENT || errno == ENOTDIR) + return 0; /* file does not exist */ + die_errno("failed to stat '%s'", arg); +} + /* * Verify a filename that we got as an argument for a pathspec * entry. Note that a filename that begins with "-" never verifies @@ -70,18 +86,12 @@ const char *prefix_filename(const char *pfx, int pfx_len, const char *arg) */ void verify_filename(const char *prefix, const char *arg) { - const char *name; - struct stat st; - if (*arg == '-') die("bad flag '%s' used after filename", arg); - name = prefix ? prefix_filename(prefix, strlen(prefix), arg) : arg; - if (!lstat(name, &st)) + if (check_filename(prefix, arg)) return; - if (errno == ENOENT) - die("ambiguous argument '%s': unknown revision or path not in the working tree.\n" - "Use '--' to separate paths from revisions", arg); - die("'%s': %s", arg, strerror(errno)); + die("ambiguous argument '%s': unknown revision or path not in the working tree.\n" + "Use '--' to separate paths from revisions", arg); } /* @@ -91,19 +101,14 @@ void verify_filename(const char *prefix, const char *arg) */ void verify_non_filename(const char *prefix, const char *arg) { - const char *name; - struct stat st; - if (!is_inside_work_tree() || is_inside_git_dir()) return; if (*arg == '-') return; /* flag */ - name = prefix ? prefix_filename(prefix, strlen(prefix), arg) : arg; - if (!lstat(name, &st)) - die("ambiguous argument '%s': both revision and filename\n" - "Use '--' to separate filenames from revisions", arg); - if (errno != ENOENT && errno != ENOTDIR) - die("'%s': %s", arg, strerror(errno)); + if (!check_filename(prefix, arg)) + return; + die("ambiguous argument '%s': both revision and filename\n" + "Use '--' to separate filenames from revisions", arg); } const char **get_pathspec(const char *prefix, const char **pathspec) @@ -257,7 +262,7 @@ const char *read_gitfile_gently(const char *path) return NULL; fd = open(path, O_RDONLY); if (fd < 0) - die("Error opening %s: %s", path, strerror(errno)); + die_errno("Error opening '%s'", path); buf = xmalloc(st.st_size + 1); len = read_in_full(fd, buf, st.st_size); close(fd); @@ -327,7 +332,7 @@ const char *setup_git_directory_gently(int *nongit_ok) return NULL; set_git_dir(make_absolute_path(gitdirenv)); if (chdir(work_tree_env) < 0) - die ("Could not chdir to %s", work_tree_env); + die_errno ("Could not chdir to '%s'", work_tree_env); strcat(buffer, "/"); return retval; } @@ -339,7 +344,7 @@ const char *setup_git_directory_gently(int *nongit_ok) } if (!getcwd(cwd, sizeof(cwd)-1)) - die("Unable to read current working directory"); + die_errno("Unable to read current working directory"); ceil_offset = longest_ancestor_length(cwd, env_ceiling_dirs); if (ceil_offset < 0 && has_dos_drive_prefix(cwd)) @@ -382,14 +387,14 @@ const char *setup_git_directory_gently(int *nongit_ok) if (offset <= ceil_offset) { if (nongit_ok) { if (chdir(cwd)) - die("Cannot come back to cwd"); + die_errno("Cannot come back to cwd"); *nongit_ok = 1; return NULL; } die("Not a git repository (or any of the parent directories): %s", DEFAULT_GIT_DIR_ENVIRONMENT); } if (chdir("..")) - die("Cannot change to %s/..: %s", cwd, strerror(errno)); + die_errno("Cannot change to '%s/..'", cwd); } inside_git_dir = 0; @@ -493,10 +498,10 @@ const char *setup_git_directory(void) static char buffer[PATH_MAX + 1]; char *rel; if (retval && chdir(retval)) - die ("Could not jump back into original cwd"); + die_errno ("Could not jump back into original cwd"); rel = get_relative_cwd(buffer, PATH_MAX, get_git_work_tree()); if (rel && *rel && chdir(get_git_work_tree())) - die ("Could not jump to working directory"); + die_errno ("Could not jump to working directory"); return rel && *rel ? strcat(rel, "/") : NULL; } |