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Added support for comments in input to mkenvimage.

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This patch adds support for comments in the input to mkenvimage, i.e. in
the environment source: All lines starting with a # in the firs column
will be ignored.

Additionally empty lines will also be ignored.

Signed-off-by: Dominik Muth <dominik.muth@bkvibro.com>
This commit is contained in:
Dominik Muth 2014-08-28 12:25:27 +02:00 committed by Tom Rini
parent e183de0d3e
commit e72be8947e
1 changed files with 8 additions and 3 deletions
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11
tools/mkenvimage.c
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@ -37,6 +37,8 @@ static void usage(const char *exec_name)
"\t\tkey1=value1\n"
"\t\tkey2=value2\n"
"\t\t...\n"
"\tEmpty lines are skipped, and lines with a # in the first\n"
"\tcolumn are treated as comments (also skipped).\n"
"\t-r : the environment has multiple copies in flash\n"
"\t-b : the target is big endian (default is little endian)\n"
"\t-p <byte> : fill the image with <byte> bytes instead of 0xff bytes\n"
@ -221,10 +223,9 @@ int main(int argc, char **argv)
/* Replace newlines separating variables with \0 */
for (fp = 0, ep = 0 ; fp < filesize ; fp++) {
if (filebuf[fp] == '\n') {
if (ep == 0) {
if (fp == 0 || filebuf[fp-1] == '\n') {
/*
* Newlines at the beginning of the file ?
* Ignore them.
* Skip empty lines.
*/
continue;
} else if (filebuf[fp-1] == '\\') {
@ -240,6 +241,10 @@ int main(int argc, char **argv)
/* End of a variable */
envptr[ep++] = '\0';
}
} else if ((fp == 0 || filebuf[fp-1] == '\n') && filebuf[fp] == '#') {
/* Comment, skip the line. */
while (++fp < filesize && filebuf[fp] != '\n')
continue;
} else {
envptr[ep++] = filebuf[fp];
}