git-p4: Unset P4DIFF environment variable when using 'p4 -du diff'

diff --git a/config.c b/config.c
index 2f85e9d3e3bcf2cc5ddc87223a797b833846af5b..062449459e1a4cfc2a605c065ed281669e0e7452 100644 (file)
--- a/config.c
+++ b/config.c
@@ -280,11 +280,18 @@ int git_parse_ulong(const char *value, unsigned long *ret)
        return 0;
 }
 
+static void die_bad_config(const char *name)
+{
+       if (config_file_name)
+               die("bad config value for '%s' in %s", name, config_file_name);
+       die("bad config value for '%s'", name);
+}
+
 int git_config_int(const char *name, const char *value)
 {
        long ret;
        if (!git_parse_long(value, &ret))
-               die("bad config value for '%s' in %s", name, config_file_name);
+               die_bad_config(name);
        return ret;
 }
 
@@ -292,7 +299,7 @@ unsigned long git_config_ulong(const char *name, const char *value)
 {
        unsigned long ret;
        if (!git_parse_ulong(value, &ret))
-               die("bad config value for '%s' in %s", name, config_file_name);
+               die_bad_config(name);
        return ret;
 }
 
@@ -309,6 +316,14 @@ int git_config_bool(const char *name, const char *value)
        return git_config_int(name, value) != 0;
 }
 
+int git_config_string(const char **dest, const char *var, const char *value)
+{
+       if (!value)
+               return config_error_nonbool(var);
+       *dest = xstrdup(value);
+       return 0;
+}
+
 int git_default_config(const char *var, const char *value)
 {
        /* This needs a better name */
@@ -407,53 +422,63 @@ int git_default_config(const char *var, const char *value)
                return 0;
        }
 
+       if (!strcmp(var, "core.safecrlf")) {
+               if (value && !strcasecmp(value, "warn")) {
+                       safe_crlf = SAFE_CRLF_WARN;
+                       return 0;
+               }
+               safe_crlf = git_config_bool(var, value);
+               return 0;
+       }
+
        if (!strcmp(var, "user.name")) {
+               if (!value)
+                       return config_error_nonbool(var);
                strlcpy(git_default_name, value, sizeof(git_default_name));
                return 0;
        }
 
        if (!strcmp(var, "user.email")) {
+               if (!value)
+                       return config_error_nonbool(var);
                strlcpy(git_default_email, value, sizeof(git_default_email));
                return 0;
        }
 
-       if (!strcmp(var, "i18n.commitencoding")) {
-               git_commit_encoding = xstrdup(value);
-               return 0;
-       }
-
-       if (!strcmp(var, "i18n.logoutputencoding")) {
-               git_log_output_encoding = xstrdup(value);
-               return 0;
-       }
+       if (!strcmp(var, "i18n.commitencoding"))
+               return git_config_string(&git_commit_encoding, var, value);
 
+       if (!strcmp(var, "i18n.logoutputencoding"))
+               return git_config_string(&git_log_output_encoding, var, value);
 
        if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) {
                pager_use_color = git_config_bool(var,value);
                return 0;
        }
 
-       if (!strcmp(var, "core.pager")) {
-               pager_program = xstrdup(value);
-               return 0;
-       }
+       if (!strcmp(var, "core.pager"))
+               return git_config_string(&pager_program, var, value);
 
-       if (!strcmp(var, "core.editor")) {
-               editor_program = xstrdup(value);
-               return 0;
-       }
+       if (!strcmp(var, "core.editor"))
+               return git_config_string(&editor_program, var, value);
 
-       if (!strcmp(var, "core.excludesfile")) {
-               if (!value)
-                       die("core.excludesfile without value");
-               excludes_file = xstrdup(value);
-               return 0;
-       }
+       if (!strcmp(var, "core.excludesfile"))
+               return git_config_string(&excludes_file, var, value);
 
        if (!strcmp(var, "core.whitespace")) {
+               if (!value)
+                       return config_error_nonbool(var);
                whitespace_rule_cfg = parse_whitespace_rule(value);
                return 0;
        }
+       if (!strcmp(var, "branch.autosetupmerge")) {
+               if (value && !strcasecmp(value, "always")) {
+                       git_branch_track = BRANCH_TRACK_ALWAYS;
+                       return 0;
+               }
+               git_branch_track = git_config_bool(var, value);
+               return 0;
+       }
 
        /* Add other config variables here and to Documentation/config.txt. */
        return 0;
@@ -717,12 +742,17 @@ static ssize_t find_beginning_of_line(const char* contents, size_t size,
        size_t equal_offset = size, bracket_offset = size;
        ssize_t offset;
 
+contline:
        for (offset = offset_-2; offset > 0
                        && contents[offset] != '\n'; offset--)
                switch (contents[offset]) {
                        case '=': equal_offset = offset; break;
                        case ']': bracket_offset = offset; break;
                }
+       if (offset > 0 && contents[offset-1] == '\\') {
+               offset_ = offset;
+               goto contline;
+       }
        if (bracket_offset < equal_offset) {
                *found_bracket = 1;
                offset = bracket_offset+1;
@@ -1090,3 +1120,12 @@ int git_config_rename_section(const char *old_name, const char *new_name)
        free(config_filename);
        return ret;
 }
+
+/*
+ * Call this to report error for your variable that should not
+ * get a boolean value (i.e. "[my] var" means "true").
+ */
+int config_error_nonbool(const char *var)
+{
+       return error("Missing value for '%s'", var);
+}