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parser: begin deprecation process for #include

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by adding a warning flag that is disabled by default. This will enable
devs to find when and where #include is in use by adding the compile
flag

  --warn=pound-include

and can even abort policy compiles by using

  --warn=pound-include --Werror=pound-include

The resulting messages look like

  Warning from /etc/apparmor.d/usr.sbin.cupsd (/etc/apparmor.d/usr.sbin.cupsd line 5): deprecated use of '#include'

Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Time-out
This commit is contained in:
John Johansen 2022-07-28 15:03:39 -07:00
parent a382452a54
commit db246ddbb5
3 changed files with 8 additions and 2 deletions
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7
parser/parser.h
View File

@ -66,10 +66,12 @@ extern int parser_token;
#define WARN_FORMAT 0x400
#define WARN_MISSING 0x800
#define WARN_OVERRIDE 0x1000
#define WARN_INCLUDE 0x2000
#define WARN_DEV (WARN_RULE_NOT_ENFORCED | WARN_RULE_DOWNGRADED | WARN_ABI | \
WARN_DEPRECATED | WARN_DANGEROUS | WARN_UNEXPECTED | \
WARN_FORMAT | WARN_MISSING | WARN_OVERRIDE | WARN_DEBUG_CACHE)
WARN_FORMAT | WARN_MISSING | WARN_OVERRIDE | \
WARN_DEBUG_CACHE | WARN_INCLUDE)
#define DEFAULT_WARNINGS (WARN_CONFIG | WARN_CACHE | WARN_JOBS | \
WARN_UNEXPECTED | WARN_OVERRIDE)
@ -77,7 +79,8 @@ extern int parser_token;
#define WARN_ALL (WARN_RULE_NOT_ENFORCED | WARN_RULE_DOWNGRADED | WARN_ABI | \
WARN_DEPRECATED | WARN_CONFIG | WARN_CACHE | \
WARN_DEBUG_CACHE | WARN_JOBS | WARN_DANGEROUS | \
WARN_UNEXPECTED | WARN_FORMAT | WARN_MISSING | WARN_OVERRIDE)
WARN_UNEXPECTED | WARN_FORMAT | WARN_MISSING | \
WARN_OVERRIDE | WARN_INCLUDE)
extern dfaflags_t warnflags;
extern dfaflags_t werrflags;

2
parser/parser_lex.l
View File

@ -613,6 +613,7 @@ GT >
/* Don't use PUSH() macro here as we don't want #include echoed out.
* It needs to be handled specially
*/
pwarn(WARN_INCLUDE, _("deprecated use of '#include'\n"));
yy_push_state(INCLUDE_EXISTS);
}
@ -627,6 +628,7 @@ include{WS}+if{WS}+exists/{WS} {
/* Don't use PUSH() macro here as we don't want #include echoed out.
* It needs to be handled specially
*/
pwarn(WARN_INCLUDE, _("deprecated use of '#include'\n"));
yy_push_state(INCLUDE);
}

1
parser/parser_main.c
View File

@ -269,6 +269,7 @@ optflag_table_t warnflag_table[] = {
{ 1, "missing", "warn when missing qualifier and a default is used", WARN_MISSING },
{ 1, "override", "warn when overriding", WARN_OVERRIDE },
{ 1, "dev", "turn on warnings that are useful for profile development", WARN_DEV },
{ 1, "pound-include", "warn when #include is used", WARN_INCLUDE },
{ 1, "all", "turn on all warnings", WARN_ALL},
{ 0, NULL, NULL, 0 },
};