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environment: remove the global variable 'merge_log_config'

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The global variable 'merge_log_config', set via the "merge.log" or
"merge.summary" settings, is only used in 'cmd_fmt_merge_msg()' and
'cmd_merge()' to adjust the 'shortlog_len' variable.

Remove 'merge_log_config' globally and localize it in
'cmd_fmt_merge_msg()' and 'cmd_merge()'. Set its value by passing it in
'fmt_merge_msg_config()' by passing its pointer to the function via the
callback parameter.

This change is part of an ongoing effort to eliminate global variables,
improve modularity and help libify the codebase.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Ghanshyam Thakkar <shyamthakkar001@gmail.com>
Signed-off-by: Ayush Chandekar <ayu.chandekar@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ayush Chandekar
2025-08-11 05:15:45 +05:30
committed by Junio C Hamano
parent f9aa0eedb3
commit 9a49aef8dc
5 changed files with 10 additions and 8 deletions
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10
fmt-merge-msg.c
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@@ -26,13 +26,15 @@ static struct string_list suppress_dest_patterns = STRING_LIST_INIT_DUP;
int fmt_merge_msg_config(const char *key, const char *value,
const struct config_context *ctx, void *cb)
{
int *merge_log_config = cb;
if (!strcmp(key, "merge.log") || !strcmp(key, "merge.summary")) {
int is_bool;
merge_log_config = git_config_bool_or_int(key, value, ctx->kvi, &is_bool);
if (!is_bool && merge_log_config < 0)
*merge_log_config = git_config_bool_or_int(key, value, ctx->kvi, &is_bool);
if (!is_bool && *merge_log_config < 0)
return error("%s: negative length %s", key, value);
if (is_bool && merge_log_config)
merge_log_config = DEFAULT_MERGE_LOG_LEN;
if (is_bool && *merge_log_config)
*merge_log_config = DEFAULT_MERGE_LOG_LEN;
} else if (!strcmp(key, "merge.branchdesc")) {
use_branch_desc = git_config_bool(key, value);
} else if (!strcmp(key, "merge.suppressdest")) {