Revision bde42f081e68030505f59186ae036b2bbbd94ce8 authored by Junio C Hamano on 09 September 2016, 04:35:54 UTC, committed by Junio C Hamano on 09 September 2016, 04:35:54 UTC
"git difftool" by default ignores the error exit from the backend commands it spawns, because often they signal that they found differences by exiting with a non-zero status code just like "diff" does; the exit status codes 126 and above however are special in that they are used to signal that the command is not executable, does not exist, or killed by a signal. "git difftool" has been taught to notice these exit status codes. * jk/difftool-command-not-found: difftool: always honor fatal error exit codes
help.h
#ifndef HELP_H
#define HELP_H
struct cmdnames {
int alloc;
int cnt;
struct cmdname {
size_t len; /* also used for similarity index in help.c */
char name[FLEX_ARRAY];
} **names;
};
static inline void mput_char(char c, unsigned int num)
{
while(num--)
putchar(c);
}
extern void list_common_cmds_help(void);
extern const char *help_unknown_cmd(const char *cmd);
extern void load_command_list(const char *prefix,
struct cmdnames *main_cmds,
struct cmdnames *other_cmds);
extern void add_cmdname(struct cmdnames *cmds, const char *name, int len);
/* Here we require that excludes is a sorted list. */
extern void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes);
extern int is_in_cmdlist(struct cmdnames *cmds, const char *name);
extern void list_commands(unsigned int colopts, struct cmdnames *main_cmds, struct cmdnames *other_cmds);
/*
* call this to die(), when it is suspected that the user mistyped a
* ref to the command, to give suggested "correct" refs.
*/
extern void help_unknown_ref(const char *ref, const char *cmd, const char *error);
#endif /* HELP_H */
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