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Merge pull request #905 from urbit/git-retro

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New pill URL format and search through old commits
This commit is contained in:
cgyarvin 2017-12-06 09:40:48 -08:00 committed by GitHub
commit 5abae22b6c
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1 changed files with 13 additions and 29 deletions
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42
noun/manage.c
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@ -1500,10 +1500,10 @@ u3m_init(c3_o chk_o)
/* _get_cmd_output(): Run a shell command and capture its output.
Exits with an error if the command fails or produces no output.
The 'out_c' parameter should be an array of sufficient length to hold
the command's output, up to a max of 2048 characters.
the command's output, up to a max of len_c characters.
*/
static void
_get_cmd_output(c3_c *cmd_c, c3_c *out_c)
_get_cmd_output(c3_c *cmd_c, c3_c *out_c, c3_w len_c)
{
FILE *fp = popen(cmd_c, "r");
if ( NULL == fp ) {
@ -1511,7 +1511,7 @@ _get_cmd_output(c3_c *cmd_c, c3_c *out_c)
exit(1);
}
if ( NULL == fgets(out_c, 2048, fp) ) {
if ( NULL == fgets(out_c, len_c, fp) ) {
fprintf(stderr, "'%s' produced no output\n", cmd_c);
exit(1);
}
@ -1519,30 +1519,19 @@ _get_cmd_output(c3_c *cmd_c, c3_c *out_c)
pclose(fp);
}
/* _arvo_hash(): retrieve git hash of arvo directory.
hax_c must be an array with length >= 41.
/* _arvo_hash(): get a shortened hash of the last git commit
that modified the sys/ directory in arvo.
hax_c must be an array with length >= 11.
*/
static void
_arvo_hash(c3_c *out_c, c3_c *arv_c)
{
c3_c cmd_c[2048];
sprintf(cmd_c, "git -C %s rev-parse HEAD", arv_c);
_get_cmd_output(cmd_c, out_c);
sprintf(cmd_c, "git -C %s log -1 HEAD --format=%H -- sys/", arv_c);
_get_cmd_output(cmd_c, out_c, 11);
out_c[strcspn(out_c, "\r\n")] = 0; /* strip newline */
}
/* _git_branch(): retrieve the current git branch */
static void
_git_branch(c3_c *out_c, c3_c *arv_c)
{
c3_c cmd_c[2048];
sprintf(cmd_c, "git -C %s rev-parse --abbrev-ref HEAD", arv_c);
_get_cmd_output(cmd_c, out_c);
out_c[strcspn(out_c, "\r\n")] = 0; /* strip newline */
out_c[10] = 0; // end with null-byte
}
/* _git_pill_url(): produce a URL from which to download a pill
@ -1551,6 +1540,8 @@ _git_branch(c3_c *out_c, c3_c *arv_c)
static void
_git_pill_url(c3_c *out_c, c3_c *arv_c)
{
c3_c hax_c[11];
assert(NULL != arv_c);
if ( 0 != system("which git >> /dev/null") ) {
@ -1558,15 +1549,8 @@ _git_pill_url(c3_c *out_c, c3_c *arv_c)
exit(1);
}
{
c3_c hax_c[2048];
c3_c bra_c[2048];
_git_branch(bra_c, arv_c);
_arvo_hash(hax_c, arv_c);
sprintf(out_c, "https://bootstrap.urbit.org/%s-%s.pill", hax_c, bra_c);
}
_arvo_hash(hax_c, arv_c);
sprintf(out_c, "https://bootstrap.urbit.org/git-%s.pill", hax_c);
}
/* _boot_home(): create ship directory. */