This change moves read_ref_at() to the refs-common.c file since this function does not contain any backend specific code. Signed-off-by: Ronnie Sahlberg <sahlberg@xxxxxxxxxx> --- refs-common.c | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ refs.c | 114 ---------------------------------------------------------- 2 files changed, 114 insertions(+), 114 deletions(-) diff --git a/refs-common.c b/refs-common.c index f99d83e..3d7354e 100644 --- a/refs-common.c +++ b/refs-common.c @@ -135,3 +135,117 @@ int rename_ref(const char *oldrefname, const char *newrefname, const char *logms transaction_free(transaction); return 1; } + +struct read_ref_at_cb { + const char *refname; + unsigned long at_time; + int cnt; + int reccnt; + unsigned char *sha1; + int found_it; + + unsigned char osha1[20]; + unsigned char nsha1[20]; + int tz; + unsigned long date; + char **msg; + unsigned long *cutoff_time; + int *cutoff_tz; + int *cutoff_cnt; +}; + +static int read_ref_at_ent(unsigned char *osha1, unsigned char *nsha1, + const char *id, unsigned long timestamp, int tz, + const char *message, void *cb_data) +{ + struct read_ref_at_cb *cb = cb_data; + + cb->reccnt++; + cb->tz = tz; + cb->date = timestamp; + + if (timestamp <= cb->at_time || cb->cnt == 0) { + if (cb->msg) + *cb->msg = xstrdup(message); + if (cb->cutoff_time) + *cb->cutoff_time = timestamp; + if (cb->cutoff_tz) + *cb->cutoff_tz = tz; + if (cb->cutoff_cnt) + *cb->cutoff_cnt = cb->reccnt - 1; + /* + * we have not yet updated cb->[n|o]sha1 so they still + * hold the values for the previous record. + */ + if (!is_null_sha1(cb->osha1)) { + hashcpy(cb->sha1, nsha1); + if (hashcmp(cb->osha1, nsha1)) + warning("Log for ref %s has gap after %s.", + cb->refname, show_date(cb->date, cb->tz, DATE_RFC2822)); + } + else if (cb->date == cb->at_time) + hashcpy(cb->sha1, nsha1); + else if (hashcmp(nsha1, cb->sha1)) + warning("Log for ref %s unexpectedly ended on %s.", + cb->refname, show_date(cb->date, cb->tz, + DATE_RFC2822)); + hashcpy(cb->osha1, osha1); + hashcpy(cb->nsha1, nsha1); + cb->found_it = 1; + return 1; + } + hashcpy(cb->osha1, osha1); + hashcpy(cb->nsha1, nsha1); + if (cb->cnt > 0) + cb->cnt--; + return 0; +} + +static int read_ref_at_ent_oldest(unsigned char *osha1, unsigned char *nsha1, + const char *id, unsigned long timestamp, + int tz, const char *message, void *cb_data) +{ + struct read_ref_at_cb *cb = cb_data; + + if (cb->msg) + *cb->msg = xstrdup(message); + if (cb->cutoff_time) + *cb->cutoff_time = timestamp; + if (cb->cutoff_tz) + *cb->cutoff_tz = tz; + if (cb->cutoff_cnt) + *cb->cutoff_cnt = cb->reccnt; + hashcpy(cb->sha1, osha1); + if (is_null_sha1(cb->sha1)) + hashcpy(cb->sha1, nsha1); + /* We just want the first entry */ + return 1; +} + +int read_ref_at(const char *refname, unsigned long at_time, int cnt, + unsigned char *sha1, char **msg, + unsigned long *cutoff_time, int *cutoff_tz, int *cutoff_cnt) +{ + struct read_ref_at_cb cb; + + memset(&cb, 0, sizeof(cb)); + cb.refname = refname; + cb.at_time = at_time; + cb.cnt = cnt; + cb.msg = msg; + cb.cutoff_time = cutoff_time; + cb.cutoff_tz = cutoff_tz; + cb.cutoff_cnt = cutoff_cnt; + cb.sha1 = sha1; + + for_each_reflog_ent_reverse(refname, read_ref_at_ent, &cb); + + if (!cb.reccnt) + die("Log for %s is empty.", refname); + if (cb.found_it) + return 0; + + for_each_reflog_ent(refname, read_ref_at_ent_oldest, &cb); + + return 1; +} diff --git a/refs.c b/refs.c index 7d579be..52ca0bb 100644 --- a/refs.c +++ b/refs.c @@ -2935,120 +2935,6 @@ int create_symref(const char *ref_target, const char *refs_heads_master, return 0; } -struct read_ref_at_cb { - const char *refname; - unsigned long at_time; - int cnt; - int reccnt; - unsigned char *sha1; - int found_it; - - unsigned char osha1[20]; - unsigned char nsha1[20]; - int tz; - unsigned long date; - char **msg; - unsigned long *cutoff_time; - int *cutoff_tz; - int *cutoff_cnt; -}; - -static int read_ref_at_ent(unsigned char *osha1, unsigned char *nsha1, - const char *id, unsigned long timestamp, int tz, - const char *message, void *cb_data) -{ - struct read_ref_at_cb *cb = cb_data; - - cb->reccnt++; - cb->tz = tz; - cb->date = timestamp; - - if (timestamp <= cb->at_time || cb->cnt == 0) { - if (cb->msg) - *cb->msg = xstrdup(message); - if (cb->cutoff_time) - *cb->cutoff_time = timestamp; - if (cb->cutoff_tz) - *cb->cutoff_tz = tz; - if (cb->cutoff_cnt) - *cb->cutoff_cnt = cb->reccnt - 1; - /* - * we have not yet updated cb->[n|o]sha1 so they still - * hold the values for the previous record. - */ - if (!is_null_sha1(cb->osha1)) { - hashcpy(cb->sha1, nsha1); - if (hashcmp(cb->osha1, nsha1)) - warning("Log for ref %s has gap after %s.", - cb->refname, show_date(cb->date, cb->tz, DATE_RFC2822)); - } - else if (cb->date == cb->at_time) - hashcpy(cb->sha1, nsha1); - else if (hashcmp(nsha1, cb->sha1)) - warning("Log for ref %s unexpectedly ended on %s.", - cb->refname, show_date(cb->date, cb->tz, - DATE_RFC2822)); - hashcpy(cb->osha1, osha1); - hashcpy(cb->nsha1, nsha1); - cb->found_it = 1; - return 1; - } - hashcpy(cb->osha1, osha1); - hashcpy(cb->nsha1, nsha1); - if (cb->cnt > 0) - cb->cnt--; - return 0; -} - -static int read_ref_at_ent_oldest(unsigned char *osha1, unsigned char *nsha1, - const char *id, unsigned long timestamp, - int tz, const char *message, void *cb_data) -{ - struct read_ref_at_cb *cb = cb_data; - - if (cb->msg) - *cb->msg = xstrdup(message); - if (cb->cutoff_time) - *cb->cutoff_time = timestamp; - if (cb->cutoff_tz) - *cb->cutoff_tz = tz; - if (cb->cutoff_cnt) - *cb->cutoff_cnt = cb->reccnt; - hashcpy(cb->sha1, osha1); - if (is_null_sha1(cb->sha1)) - hashcpy(cb->sha1, nsha1); - /* We just want the first entry */ - return 1; -} - -int read_ref_at(const char *refname, unsigned long at_time, int cnt, - unsigned char *sha1, char **msg, - unsigned long *cutoff_time, int *cutoff_tz, int *cutoff_cnt) -{ - struct read_ref_at_cb cb; - - memset(&cb, 0, sizeof(cb)); - cb.refname = refname; - cb.at_time = at_time; - cb.cnt = cnt; - cb.msg = msg; - cb.cutoff_time = cutoff_time; - cb.cutoff_tz = cutoff_tz; - cb.cutoff_cnt = cutoff_cnt; - cb.sha1 = sha1; - - for_each_reflog_ent_reverse(refname, read_ref_at_ent, &cb); - - if (!cb.reccnt) - die("Log for %s is empty.", refname); - if (cb.found_it) - return 0; - - for_each_reflog_ent(refname, read_ref_at_ent_oldest, &cb); - - return 1; -} - int reflog_exists(const char *refname) { struct stat st; 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