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** Given two input files, create and output a delta that carries
** the first file into the second.
*/
void delta_create_cmd(void){
Blob orig, target, delta;
if( g.argc!=5 ){
fprintf(stderr,"Usage: %s %s ORIGIN TARGET DELTA\n", g.argv[0], g.argv[1]);
exit(1);
fossil_exit(1);
}
if( blob_read_from_file(&orig, g.argv[2])<0 ){
fprintf(stderr,"cannot read %s\n", g.argv[2]);
exit(1);
fossil_exit(1);
}
if( blob_read_from_file(&target, g.argv[3])<0 ){
fprintf(stderr,"cannot read %s\n", g.argv[3]);
exit(1);
fossil_exit(1);
}
blob_delta_create(&orig, &target, &delta);
if( blob_write_to_file(&delta, g.argv[4])<blob_size(&delta) ){
fprintf(stderr,"cannot write %s\n", g.argv[4]);
exit(1);
fossil_exit(1);
}
blob_reset(&orig);
blob_reset(&target);
blob_reset(&delta);
}
/*
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** Given an input files and a delta, apply the delta to the input file
** and write the result.
*/
void delta_apply_cmd(void){
Blob orig, target, delta;
if( g.argc!=5 ){
fprintf(stderr,"Usage: %s %s ORIGIN DELTA TARGET\n", g.argv[0], g.argv[1]);
exit(1);
fossil_exit(1);
}
if( blob_read_from_file(&orig, g.argv[2])<0 ){
fprintf(stderr,"cannot read %s\n", g.argv[2]);
exit(1);
fossil_exit(1);
}
if( blob_read_from_file(&delta, g.argv[3])<0 ){
fprintf(stderr,"cannot read %s\n", g.argv[3]);
exit(1);
fossil_exit(1);
}
blob_delta_apply(&orig, &delta, &target);
if( blob_write_to_file(&target, g.argv[4])<blob_size(&target) ){
fprintf(stderr,"cannot write %s\n", g.argv[4]);
exit(1);
fossil_exit(1);
}
blob_reset(&orig);
blob_reset(&target);
blob_reset(&delta);
}
/*
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