-$Cambridge: exim/doc/doc-txt/OptionLists.txt,v 1.36 2010/06/05 21:42:53 pdp Exp $
-
LISTS OF EXIM OPTIONS
---------------------
-This file contains complete lists of four kinds of Exim option:
+This file contains an almost complete lists of four kinds of Exim option:
1. Those that can appear in the run time configuration file;
2. Those that can be used on the command line;
4. Those that can appear in the build time configuration for the Exim monitor
(Local/eximon.conf).
-This file was last updated for Exim release 4.72.
+This file was last updated for Exim release 4.95.
1. RUN TIME OPTIONS
in fact some of them were inherited from earlier versions.
-----------------------------------------------------------------------------------------
-accept_8bitmime boolean false main 1.60
+accept_8bitmime boolean true main 1.60 changed to true in 4.80
acl_not_smtp string* unset main 4.11
acl_not_smtp_mime string* unset main 4.51 with content scan
acl_smtp_auth string* unset main 4.00
acl_smtp_connect string* unset main 4.11
acl_smtp_data string* unset main 4.00
+acl_smtp_data_prdr string* unset main 4.82 with experimental_prdr, 4.83 unless disable_prdr
+acl_smtp_dkim string* unset main 4.70 unless disable_dkim
acl_smtp_etrn string* unset main 4.00
acl_smtp_expn string* unset main 4.00
acl_smtp_helo string* unset main 4.20
allow_filter boolean false redirect 4.00
allow_freeze boolean false redirect 4.00
allow_fifo boolean false appendfile 3.13
+allow_insecure_tainted_data boolean true main 4.95 support will drop ~4.97ٍ
allow_localhost boolean false smtp 1.73
allow_mx_to_ip boolean false main 3.14
allow_symlink boolean false appendfile
allow_utf8_domains boolean false main 4.14
+arc_sign string* unset smtp 4.91 with Experimental_ARC
auth_advertise_hosts host list "*" main 4.00
authenticated_sender string* unset smtp 4.14
authenticated_sender_force boolean false smtp 4.61
bcc string* unset autoreply
bi_command string unset main
body_only boolean false transports 2.05
-bounce_message_file string unset main 4.00
+bounce_message_file string* unset main 4.00 expanded from 4.94
bounce_message_text string unset main 4.00
bounce_return_body boolean true main 4.23
bounce_return_message boolean true main 4.00
check_string string "From " appendfile 3.03
unset pipe 3.03
check_srv string* unset dnslookup 4.31
+client_authz string* unset gsasl 4.94
client_condition string* unset authenticators 4.68
client_ignore_invalid_base64 boolean false plaintext 4.61
client_name string* + cram_md5 3.10
+client_password string* unset gsasl 4.94
client_secret string* unset cram_md5 3.10
client_send string* unset plaintext 3.10
+ unset external (auth) 4.93
+client_username string* unset gsasl 4.94
command string* unset lmtp 3.20
unset pipe
unset queryprogram 4.00
command_group string unset queryprogram 4.00
command_timeout time 5m smtp
command_user string unset queryprogram 4.00
+commandline_checks_require_admin boolean false main 4.90
condition string* unset routers 4.00
connect_timeout time 0s smtp 1.60
connection_max_messages integer 500 smtp 4.00 replaces batch_max
daemon_smtp_ports string unset main 1.75 pluralised in 4.21
daemon_startup_retries int 9 main 4.52
daemon_startup_sleep time 30s main 4.52
+dane_require_tls_ciphers string* unset smtp 4.91
data string unset redirect 4.00
data_timeout time 5m smtp
debug_print string* unset authenticators 4.00
unset routers 4.00
unset transports 2.00
+debug_store boolean false main 4.90
delay_after_cutoff boolean true smtp
delay_warning time list 24h main
delay_warning_condition string* + main 1.73
dkim_selector string* unset smtp 4.70
dkim_sign_headers string* (RFC4871) smtp 4.70
dkim_strict string* unset smtp 4.70
+dkim_timestamps integer* unset smtp 4.92
+dkim_verify_hashes string sha256:sha512:sha1 main 4.93
+dkim_verify_keytypes string ed25519:rsa main 4.93
+dkim_verify_min_keysizes string list "rsa=1024 ed25519=250" main 4.94
+dkim_verify_minimal boolean false main 4.93
dkim_verify_signers string* $dkim_signers main 4.70
directory string* unset appendfile
directory_file string* + appendfile
disable_ipv6 boolean false main 4.61
disable_logging boolean false routers 4.11
false transports 4.11
+dmarc_forensic_sender string unset main 4.82 if experimental_dmarc, 4.93 mainline
+dmarc_history_file string unset main 4.82 if experimental_dmarc, 4.93 mainline
+dmarc_tld_file string unset main 4.82 if experimental_dmarc, 4.93 mainline
dns_again_means_nonexist domain list unset main 1.89
dns_check_names_pattern string + main 2.11
+dns_cname_loops integer 0 main 4.92 Set to 9 for older behaviour
dns_csa_search_limit integer 5 main 4.60
dns_csa_use_reverse boolean true main 4.60
+dns_dnssec_ok integer -1 main 4.82
+dns_dane_ok integer -1 main 4.83
dns_ipv4_lookup boolean false main 3.20
dns_qualify_single boolean true smtp
dns_retrans time 0s main 1.60
dns_retry integer 0 main 1.60
dns_search_parents boolean false smtp
+dns_use_edns0 integer -1 main 4.76
domains domain list unset routers 4.00
driver string unset authenticators
unset routers 4.00
unset transports
drop_cr boolean false main 4.00 became a no-op in 4.21
+dscp string unset smtp 4.82
dsn_from string* + main 4.67
envelope_to_add boolean false transports
envelope_to_remove boolean true main
exim_group string ++ main
exim_path string ++ main
exim_user string ++ main
+exim_version string ++ main 4.93
expn boolean true routers
extra_local_interfaces string unset main 4.21
extract_addresses_remove_arguments boolean true main 1.92
forbid_pipe boolean false redirect 4.00
forbid_sieve_filter boolean false redirect 4.44
forbid_smtp_code boolean false redirect 4.63
+force_command boolean false pipe 4.82
freeze_exec_fail boolean false pipe 1.89
+freeze_signal boolean false pipe 4.75
freeze_tell boolean false main 4.00 replaces freeze_tell_mailmaster
from string* unset autoreply
gecos_name string* unset main
gecos_pattern string unset main
gethostbyname boolean false smtp
+gnutls_allow_auto_pkcs11 boolean false main 4.82
gnutls_compat_mode boolean unset main 4.70
-gnutls_require_kx string* unset main 4.67
- string* unset smtp 4.67
-gnutls_require_mac string* unset main 4.67
- string* unset smtp 4.67
-gnutls_require_protocols string* unset main 4.67
- string* unset smtp 4.67
+gnutls_require_kx string* unset main 4.67 deprecated, warns
+ string* unset smtp 4.67 deprecated, warns
+gnutls_require_mac string* unset main 4.67 deprecated, warns
+ string* unset smtp 4.67 deprecated, warns
+gnutls_require_protocols string* unset main 4.67 deprecated, warns
+ string* unset smtp 4.67 deprecated, warns
group string + routers 4.00
unset transports 4.00 replaces local option in some transports
header_line_maxsize integer 0 (unset) main 4.14
home_directory string* unset transports 4.00 replaces individual options
host_all_ignored string "defer" manualroute 4.67
host_find_failed string "freeze" manualroute 4.00
+host_name_extract string
+ "${if and {{match{.outlook.com\\$}{$host}} {match{$item}{\\N^250-([\\w.]+)\\s\\N}}} {$1}}"
+ smtp 4.96
host_lookup host list unset main 3.00
host_lookup_order string list "bydns:byaddr" main 4.30
host_reject_connection host list unset main 4.00
hosts_max_try integer 5 smtp 3.20
hosts_max_try_hardlimit integer 50 smtp 4.50
hosts_nopass_tls host list unset smtp 4.00
+hosts_noproxy_tls host list "*" smtp 4.90
hosts_override boolean false smtp 2.11
+hosts_pipe_connect host_list unset smtp 4.93 if experimental_pipe_connect
hosts_randomize boolean false manualroute 4.00
false smtp 3.14
hosts_require_auth host list unset smtp 4.00
+hosts_require_alpn host list unset main 4.95
+ smtp 4.95
+hosts_require_dane host list unset smtp 4.91 (4.85 experimental)
+hosts_require_helo host list "*" main 4.95
+hosts_require_ocsp host list unset smtp 4.82 if experimental_ocsp
hosts_require_tls host list unset smtp 3.20
hosts_treat_as_local domain list unset main 1.95
hosts_try_auth host list unset smtp 4.00
+hosts_try_dane host list unset smtp 4.91 (4.85 experimental)
+hosts_try_fastopen host list unset smtp 4.88
+hosts_try_prdr host list unset smtp 4.82 if experimental_prdr
ibase_servers string unset main 4.23
ignore_bounce_errors_after time 0s main 4.00
ignore_eacces boolean false redirect 4.00
keepalive boolean true smtp 2.05
ldap_default_servers string list unset main 3.02
ldap_version int 2 or 3 main 4.14
+limits_advertise_hosts host list * main 4.98
local_from_check boolean true main 3.14
local_from_prefix string unset main 3.14
local_from_suffix string unset main 3.14
maildir_format boolean false appendfile 1.70
maildir_retries integer 10 appendfile 1.70
maildir_tag string* unset appendfile 1.92
-maildir_use_size_file boolean false appendfile 4.30
+maildir_use_size_file boolean* false appendfile 4.30 expanded in 4.77
maildirfolder_create_regex string unset appendfile 4.62
mailstore_format boolean false appendfile 2.00
mailstore_prefix string* unset appendfile 2.00
message_body_visible integer 500 main
message_id_header_domain string* unset main 4.11
message_id_header_text string* unset main
+message_linelength_limit integer 998 smtp 4.94
message_logs boolean true main 4.10
message_prefix string* + appendfile 4.00 replaces prefix
string* unset pipe 4.00 replaces prefix
mx_fail_domains domain list unset dnslookup 4.43
mysql_servers string list unset main 3.03
never_users string list unset main
+notifier_socket string "$spool_directory/exim_daemon_notify"
+ main 4.94
notify_comsat boolean false appendfile
once string* unset autoreply
once_file_size integer 0 autoreply 3.20
once_repeat time 0s autoreply 2.95
one_time boolean false redirect 4.00
-openssl_options string "+dont_insert_empty_fragments" main 4.73
+openssl_options string +no_sslv2 main 4.73 default changed in 4.80
optional boolean false iplookup 4.00
oracle_servers string unset main 4.00
owners string list unset redirect 4.00
owngroups string list unset redirect 4.00
+panic_coredump boolean false main 4.96
pass_on_timeout boolean false routers 4.00
pass_router string unset routers 4.00
path string "/usr/bin" pipe
pipe_as_creator boolean false pipe
pipe_transport string* unset redirect 4.00
pipelining_advertise_hosts host list "*" main 4.14
+pipelining__connect_advertise_hosts host list "*" main 4.92 if experimental_pipe_connect
port integer 0 iplookup 4.00
string "smtp" smtp
preserve_message_logs boolean false main
+prdr_enable boolean false main 4.82 if experimental_prdr
primary_hostname string + main
print_topbitchars boolean false main 1.89
process_log_path string unset main 4.21
qualify_single boolean true dnslookup 4.00
query string* + iplookup 4.00
queue_domains domain list unset main 4.00
+queue_fast_ramp boolean false main 4.95
queue_list_requires_admin boolean true main 1.95
queue_only boolean false main
queue_only_file string unset main 2.05
received_header_text string* + main
received_headers_max integer 30 main
recipient_unqualified_hosts host list unset main 4.00 replacing receiver_unqualified_hosts
-recipients_max integer 0 main 1.60
+recipients_max integer* 50000 main 1.60 default changed in 4.95 (was 0)
recipients_max_reject boolean false main 1.70
redirect_router string unset routers 4.00
remote_max_parallel integer 1 main
senders address list unset routers 4.00
serialize_hosts host list unset smtp 1.60
server_advertise_condition string* unset authenticators 4.14
+server_channelbinding bool false gsasl 4.80
server_condition string* unset authenticators 3.10 (plaintext) 4.64 (others)
-server_hostname string* "$primary_hostname" cyrus_sasl 4.43
+server_hostname string* "$primary_hostname" cyrus_sasl,gsasl,heimdal_gssapi (cyrus-only) 4.80 (others)
+server_keytab string* unset heimdal_gssapi 4.80
server_mail_auth_condition string* unset authenticators 3.22
-server_mech string public_name cyrus_sasl 4.43
+server_mech string public_name cyrus_sasl,gsasl 4.43 (cyrus-only) 4.80 (others)
+server_password string unset gsasl 4.80
+server_param1 string* unset tls (auth) 4.86
+server_param2 string* unset tls (auth) 4.86
+server_param3 string* unset tls (auth) 4.86
+server_param2 string* unset tls (auth) 4.86 (tls-only) 4.93 (external)
+server_param3 string* unset tls (auth) 4.86 (tls-only) 4.93 (external)
server_prompts string* unset plaintext 3.10
-server_realm string unset cyrus_sasl 4.43
+server_realm string unset cyrus_sasl,gsasl 4.43 (cyrus-only) 4.80 (others)
+server_scram_iter string* unset gsasl 4.80
+server_scram_salt string* unset gsasl 4.80
server_secret string* unset cram_md5 3.10
-server_service string "smtp" cyrus_sasl 4.43
+server_service string "smtp" cyrus_sasl,gsasl,heimdal_gssapi (cyrus-only) 4.80 (others)
server_set_id string* unset authenticators 3.10
+set string* unset routers 4.93
shadow_condition string* unset transports
shadow_transport string unset transports
+sieve_inbox string* "inbox" redirect 4.99
+sieve_enotify_mailto_owner string* "inbox" redirect
+sieve_subaddress string* "inbox" redirect
+sieve_useraddress string* "inbox" redirect
+sieve_vacation_directory string* "inbox" redirect
size_addition integer 1024 smtp 1.91
skip_syntax_errors boolean false redirect 4.00
smtp_accept_keepalive boolean true main
smtp_accept_queue_per_connection integer 10 main 2.03
smtp_accept_reserve integer 0 main
smtp_active_hostname string* unset main 4.33
+smtp_backlog_monitor integer 0 main 4.95
smtp_banner string* + main
smtp_check_spool_space boolean true main 2.10
smtp_connect_backlog integer 5 main
smtp_return_error_details boolean false main 4.11
socket string* unset lmtp 4.11
spamd_address string* + main 4.50 with content scan
+spf_guess string "v=spf1 a/24 mx/24 ptr ?all"
+ main 4.91 with SUPPORT_SPF
+spf_smtp_comment_template string* "Please see http://www.open-spf.org/Why"
+ main 4.94 with SUPPORT_SPF
split_spool_directory boolean false main 1.70
spool_directory string ++ main
+spool_wireformat boolean false main 4.90
+sqlite_dbfile string* unset main 4.94 with LOOKUP_SQLITE
sqlite_lock_timeout time 5s main 4.53
strict_acl_vars boolean false main 4.64
srv_fail_domains domain list unset dnslookup 4.43
system_filter_user string unset main 4.00 replacing message_filter
tcp_nodelay boolean true main 4.23
true smtp 4.23
+tcp_wrappers_daemon_name string* ++ main 4.73
temp_errors string list + pipe 1.95
text string* unset autoreply
timeout time 5m lmtp 3.20
timeout_frozen_after time 0s main 3.20
timezone string + main 3.15
tls_advertise_hosts host list * main 3.20
+tls_alpn string* unset main 4.95
+ smtp 4.95
tls_certificate string* unset main 3.20
unset smtp 3.20
+tls_dh_max_bits integer 2236 main 4.80
+tls_dh_min_bits integer 1024 smtp 4.82
tls_dhparam string* unset main 3.20
+tls_ocsp_file string* unset main 4.80 if experimental_ocsp
tls_on_connect_ports string unset main 4.43
tls_privatekey string* unset main 3.20
unset smtp 3.20
tls_remember_emstp boolean false main 4.21
tls_require_ciphers string* unset smtp 4.00 replaces tls_verify_ciphers
string* unset main 4.33
+tls_resumption_hosts host list* unset main 4.95
+ host list* unset smtp 4.95
+tls_sni string* unset main 4.80
tls_tempfail_tryclear boolean true smtp 4.05
tls_try_verify_hosts host list unset main 4.00
tls_verify_certificates string* unset main 3.20
use_shell boolean false pipe 1.70
user string + routers 4.00
unset transports 4.00 replaces individual options
+utf8_downconvert integer unset smtp 4.92 if SUPPORT_I18N
uucp_from_pattern string + main 1.75
uucp_from_sender string* "$1" main 1.75
verify boolean true routers 4.00
verify_only boolean false routers 4.00
verify_recipient boolean true routers 4.00
verify_sender boolean true routers 4.00
-warn_message_file string unset main 4.00
+warn_message_file string* unset main 4.00 expanded from 4.94
widen_domains string list unset dnslookup 4.00
write_rejectlog boolean true main 4.31
-- Terminate options
--help Give a little help (not a lot)
+--version Give version information (alias for -bV)
-B * Ignored
-bd + Start daemon
-bdf + Start daemon and run it in the foreground
-bh Test incoming SMTP call, omitting callouts
-bhc Test incoming SMTP call, with callouts
-bi * Run <command>bi_command</command>
+-bI:help Show list of accepted -bI:<tag> options
-bm Accept message on standard input
-bmalware + Invoke configured malware scanning against supplied filename
-bnq Don't qualify addresses in locally submitted messages
-bV Verify version number
-bv Test recipient address verification
-bvs Test sender address verification
+-bw + Inetd wait mode
-C + Use alternate configuration file
-D + Define macro for configuration file
-d + Turn on debugging output
-oMai # Supply authenticated id
-oMas # Supply authenticated sender
-oMi # Supply interface address
+-oMm # Supply message reference
-oMr # Supply protocol name
-oMs # Supply host name
-oMt # Supply ident string
3. BUILD TIME OPTIONS FOR EXIM
------------------------------
-The table below contains a complete list of options that can be set in
-Local/Makefile when building Exim. More information about individual options
-can be found in src/EDITME and OS/Makefile-Default.
+The table below contains a "mostly" complete list of options that can be
+set in Local/Makefile when building Exim. The only items not included are
+those whose names can be trivially derived from rules stated below.
+
+More information about individual options can be found in src/EDITME and
+OS/Makefile-Default.
The second column below gives the type of option:
actually want to modify a setting from the OS-specific file, there is nothing
to stop you overriding it in your Local/Makefile.
+When building Exim with dynamically loaded lookup support, for "LOOKUP_FOO",
+you can define "LOOKUP_FOO_INCLUDE" and "LOOKUP_FOO_LIBS", for includes and
+libraries specific only to that module. These rules are only used where the
+relevant lookup is a module. These options are not explicitly listed below.
+
+Variables with names endined `_PC' are used for pkg-config integration; setting
+the value to the name of a pkg-config package will cause Exim's build system to
+query the --cflags and --libs for the given name, when building anything
+dependent upon the component associated with the `_PC' variable. For lookups,
+if the lookup is dynamically loaded, then this *replaces* the use of the
+corresponding _INCLUDE and _LIBS options, which will be ignored. If the lookup
+is statically loaded into Exim, the results will be inserted into the
+"LOOKUP_INCLUDE" and "LOOKUP_LIBS" options. For authenticator, the results
+will be inserted into the "CFLAGS" and "AUTH_LIBS" options. These options are
+only listed below for the TLS implementation cases.
+
+
Option Type Description
------------------------------------------------------------------------------
ALT_CONFIG_PREFIX optional restricts location of -C files
-ALT_CONFIG_ROOT_ONLY optional* privileged -C needs root (not exim)
APPENDFILE_MODE optional*
APPENDFILE_DIRECTORY_MODE optional*
APPENDFILE_LOCKFILE_MODE optional*
AR system command to build a library
AUTH_CRAM_MD5 driver include cram_md5 authenticator
AUTH_CYRUS_SASL driver include Cyrus SASL authenticator
+AUTH_GSASL driver include GNU SASL authenticator
+AUTH_HEIMDAL_GSSAPI driver include Heimdal GSSAPI authenticator
+AUTH_LIBS system library linkage for authenticators
AUTH_PLAINTEXT driver include plaintext authenticator
AUTH_SPA driver include SPA (NTLM) authenticator
AUTH_VARS=3 optional* number of $auth variables
BIN_DIRECTORY mandatory Exim binary directory
CC system** C compiler
CFLAGS system** flags for C compiler
+CFLAGS_DYNAMIC system** extra flags needed for .so modules
CHGRP_COMMAND system** path to chgrp
CHOWN_COMMAND system** path to chown
COMPRESS_COMMAND system path to a compress command
DELIVER_IN_BUFFER_SIZE optional*
DELIVER_OUT_BUFFER_SIZE optional*
DISABLE_DKIM optional disables DKIM support
+DISABLE_DNSSEC optional disables attempts to use DNSSEC
DISABLE_D_OPTION optional disables -D option
ERRNO_QUOTA optional* error code for system quota failures
EXICYCLOG_MAX optional number of old log files to keep
EXIM_PERL optional
EXIM_USER mandatory user to use for Exim
EXIWHAT_EGREP_ARG system** to find Exim processes from ps
-EXIWHAT_KILL_SIGNAL system** -SIGUSER1 or numerical equivalent
+EXIWHAT_KILL_SIGNAL system** -SIGUSR1 or numerical equivalent
EXIWHAT_MULTIKILL_CMD system**
EXIWHAT_MULTIKILL_ARG system**
EXIWHAT_PS_ARG system** to list all processes
EXIWHAT_PS_CMD system** path to ps command
+EXPAND_LISTMATCH_RHS optional* restore pre-4.77 match_*{}{} behaviour
EXTRALIBS system additional libraries
EXTRALIBS_EXIM system additional libraries for Exim only
EXTRALIBS_EXIMON system additional libraries for the monitor
LOOKUP_LDAP lookup include ldap lookup
LOOKUP_LIBS lookup include libraries for lookups
LOOKUP_LSEARCH lookup include all lsearch lookups
+LOOKUP_MODULE_DIR optional* where dynamic lookup modules live
LOOKUP_MYSQL lookup include mysql lookup
LOOKUP_NIS lookup include nis lookup
LOOKUP_NISPLUS lookup include nisplus lookup
LOOKUP_PGSQL lookup include pgsql lookup
LOOKUP_TESTDB lookup*
LOOKUP_WHOSON lookup include whoson lookup
+LOOKUP_*_INCLUDE optional* include files for dynamic module
+LOOKUP_*_LIBS optional* libraries for dynamic module
MAKE_SHELL optional* shell to use for make
MAX_FILTER_SIZE optional* max file size for filter files
MAX_INCLUDE_SIZE optional* max file size for :include: files
MSGLOG_DIRECTORY_MODE optional* mode for message log directory
MV_COMMAND system path to mv command
NO_SYMLINK optional install doesn't make 'exim" symlink
-PCRE_CFLAGS system compile flags for PCRE library
+PCRE_CONFIG system* use pcre-config for PCRE support
+PCRE_LIBS system* library for using PCRE
PERL_CC system* compiler for Perl interface code
PERL_CCOPTS system* flags for same
PERL_COMMAND system path to Perl
SYSLOG_LOG_PID optional add pid to syslog lines
SYSLOG_LONG_LINES optional do not split long syslog lines
SYSTEM_ALIASES_FILE optional defaults to /etc/aliases
+TCP_WRAPPERS_DAEMON_NAME system* daemon name used by tcpwrappers library
TIMEZONE_DEFAULT optional default for timezone option
TLS_INCLUDE optional path to include files for TLS
TLS_LIBS optional additional libraries for TLS
-TMPDIR system value for TMPDIR environment variable
+EXIM_TMPDIR system value for TMPDIR environment variable
TRANSPORT_APPENDFILE driver include appendfile transport
TRANSPORT_AUTOREPLY driver include autoreply transport
TRANSPORT_LMTP driver include lmtp transport
TRANSPORT_PIPE driver include pipe transport
TRANSPORT_SMTP driver include smtp transport
+TRUSTED_CONFIG_LIST optional config files safe to retain privileges
USE_DB system** use native DB interface
USE_GNUTLS optional use GnuTLS instead of OpenSSL
+USE_GNUTLS_PC optional probably "gnutls"
+USE_OPENSSL_PC optional probably "openssl"
USE_READLINE optional try to load libreadline for -be
USE_TCP_WRAPPERS system link with tcpwrappers
USE_TDB optional use the tdb DB interface
+WHITELIST_D_MACROS optional -Dmacros safe to retain privileges with
WITH_OLD_CLAMAV_STREAM optional* use ClamAV API from before ClamAV 0.95
X11 system** X11 base directory
X11_LD_LIB system** X11 link library
git://git.exim.org / exim.git / blobdiff