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[6816] Cleaned up git_id

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Added the -f option to fetch from origin and check for fast-forward
Added alternates for the -r,-h and -l options
Added usage output for -h
Other cleanups
This commit is contained in:
Wyk3d 2008-11-09 23:38:57 +02:00
parent 8e54a3c1cf
commit 2d46c5da11
2 changed files with 97 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

115
contrib/git_id/git_id.cpp
View file

@ -16,13 +16,21 @@
#include <unistd.h>
#endif
// config
#define NUM_REMOTES 2
char remotes[NUM_REMOTES][256] = {
"git@github.com:mangos/mangos.git",
"git://github.com/mangos/mangos.git"
"git://github.com/mangos/mangos.git" // used for fetch if present
};
bool allow_replace = false;
bool local = false;
bool do_fetch = false;
// aux
char origins[NUM_REMOTES][256];
int rev;
char head_message[16384];
@ -31,11 +39,9 @@ char write_file[2048];
char buffer[256];
FILE *cmd_pipe;
bool allow_replace = false;
bool local = false;
bool find_path()
{
printf("+ finding path\n");
char cur_path[2048], *ptr;
getcwd(cur_path, 2048);
int len = strnlen(cur_path, 2048);
@ -70,6 +76,7 @@ bool find_path()
bool find_origin()
{
printf("+ finding origin\n");
if( (cmd_pipe = popen( "git remote -v", "r" )) == NULL )
return false;
@ -91,6 +98,48 @@ bool find_origin()
return ret;
}
bool fetch_origin()
{
printf("+ fetching origin\n");
char cmd[256];
// use the public clone url if present because the private may require a password
sprintf(cmd, "git fetch %s master", origins[1][0] ? origins[1] : origins[0]);
int ret = system(cmd);
return true;
}
bool check_fwd()
{
printf("+ checking fast forward\n");
char cmd[256];
sprintf(cmd, "git log -n 1 --pretty=\"format:%%H\" %s/master", origins[1][0] ? origins[1] : origins[0]);
if( (cmd_pipe = popen( cmd, "r" )) == NULL )
return false;
char hash[256];
if(!fgets(buffer, 256, cmd_pipe)) return false;
strncpy(hash, buffer, 256);
pclose(cmd_pipe);
if( (cmd_pipe = popen( "git log --pretty=\"format:%H\"", "r" )) == NULL )
return false;
bool found = false;
while(fgets(buffer, 256, cmd_pipe))
{
buffer[strnlen(buffer, 256) - 1] = '\0';
if(strncmp(hash, buffer, 256) == 0)
{
found = true;
break;
}
}
pclose(cmd_pipe);
if(!found) printf("WARNING: non-fastforward, use rebase!\n");
return true;
}
int get_rev(const char *from_msg)
{
// accept only the rev number format, not the sql update format
@ -102,6 +151,7 @@ int get_rev(const char *from_msg)
bool find_rev()
{
printf("+ finding next revision number\n");
// find the highest rev number on either of the remotes
for(int i = 0; i < NUM_REMOTES; i++)
{
@ -123,6 +173,8 @@ bool find_rev()
pclose(cmd_pipe);
}
if(rev > 0) printf("Found [%d].\n", rev);
return rev > 0;
}
@ -138,6 +190,7 @@ std::string generateHeader(char const* rev_str)
bool write_rev()
{
printf("+ writing revision_nr.h\n");
char rev_str[256];
sprintf(rev_str, "%d", rev);
std::string header = generateHeader(rev_str);
@ -154,6 +207,7 @@ bool write_rev()
bool find_head_msg()
{
printf("+ finding last message on HEAD\n");
if( (cmd_pipe = popen( "git log -n 1 --pretty=\"format:%s%n%n%b\"", "r" )) == NULL )
return false;
@ -163,9 +217,14 @@ bool find_head_msg()
pclose(cmd_pipe);
if(get_rev(head_message))
if(int head_rev = get_rev(head_message))
{
if(!allow_replace) return false;
if(!allow_replace)
{
printf("Last commit on HEAD is [%d]. Use -r to replace it with [%d].\n", head_rev, rev);
return false;
}
// skip the rev number in the commit
char *p = strchr(head_message, ']'), *q = head_message;
assert(p && *(p+1));
@ -180,6 +239,7 @@ bool find_head_msg()
bool amend_commit()
{
printf("+ amending last commit\n");
char cmd[512];
sprintf(cmd, "git commit --amend -F- %s", write_file);
if( (cmd_pipe = popen( cmd, "w" )) == NULL )
@ -191,30 +251,47 @@ bool amend_commit()
return true;
}
#define DO(cmd) if(!cmd) { printf("FAILED\n"); return 1; }
int main(int argc, char *argv[])
{
for(int i = 1; i < argc; i++)
{
if(argv[i] == NULL) continue;
if(strncmp(argv[i], "-r", 2) == 0)
if(strncmp(argv[i], "-r", 2) == 0 || strncmp(argv[i], "--replace", 2) == 0)
allow_replace = true;
if(strncmp(argv[i], "-l", 2) == 0)
if(strncmp(argv[i], "-l", 2) == 0 || strncmp(argv[i], "--local", 2) == 0)
local = true;
if(strncmp(argv[i], "-h", 2) == 0)
if(strncmp(argv[i], "-f", 2) == 0 || strncmp(argv[i], "--fetch", 2) == 0)
do_fetch = true;
if(strncmp(argv[i], "-h", 2) == 0 || strncmp(argv[i], "--help", 2) == 0)
{
printf("Usage: git_id [OPTION]\n");
printf("Generates a new rev number and updates revision_nr.h and the commit message.\n");
printf("Should be used just before push.\n");
printf(" -h, --help show the usage\n");
printf(" -r, --replace replace the rev number if it was already applied to the last\n");
printf(" commit\n");
printf(" -l, --local search for the highest rev number on HEAD\n");
printf(" -f, --fetch fetch from origin before searching for the new rev\n");
return 0;
}
}
if(!find_path()) { printf("ERROR: can't find path\n"); return 1; }
if(!local && !find_origin()) { printf("ERROR: can't find origin\n"); return 1; }
if(!find_rev()) { printf("ERROR: can't find rev\n"); return 1; }
if(!find_head_msg()) { printf("ERROR: can't find head message\n"); return 1; }
if(!write_rev()) { printf("ERROR: can't write revision_nr.h\n"); return 1; }
if(!amend_commit()) { printf("ERROR: can't ammend commit\n"); return 1; }
printf("Generated rev %d\n", rev);
DO( find_path() );
if(!local)
{
DO( find_origin() );
if(do_fetch)
{
DO( fetch_origin() );
DO( check_fwd() );
}
}
DO( find_rev() );
DO( find_head_msg() );
DO( write_rev() );
DO( amend_commit() );
return 0;
}

2
src/shared/revision_nr.h
View file

@ -1,4 +1,4 @@
#ifndef __REVISION_NR_H__
#define __REVISION_NR_H__
#define REVISION_NR "6815"
#define REVISION_NR "6816"
#endif // __REVISION_NR_H__