Subversion (svn) è un nuovo sistema per Version Control simile al vecchio, ma ottimo, CVS. L’ambizioso obiettivo di Subversion è di rimpiazzare CVS, strausato sopratutto nel mondo open source, andando a colmare i pochi difetti ancora presenti.

Le caratteristiche principali di Subversion sono:

1. la sintassi dei comandi è abbastanza simile a CVS
2. gestisce il controllo di versione anche sulle directory, sul rename e sui metadati
3. il commit è realmente atomico
4. si integra con Apache
5. usa Berkeley DB
6. gestisce in maniera migliore i file binari
7. possibilità di eseguire dei comandi offline (status, diff, revert)
8. esistono dei tools per convertire un reposiotry CVS in un repository Subversion

Il cambiamento sostanziale sta nella gestione dei tag e delle branch. Branch e tag sono viste come delle directory che contengono l’intero progetto, è per questo che la struttura tipica delle directory di un progetto è:

• project/branches/
• project/tags/
• project/trunk/

In conclusione Subversion sembra essere in grado di soppiantare CVS, anche Apache Fundation sta portando sempre più progetti nel nuovo repository, deve crescere ancora un po’, o meglio, si devono creare attorno a svn tutta quella serie di applicazione e integrazioni che ha ora CVS, ovvero: interface user friendly ed integrazione con i tools di sviluppo.

Esiste comunque già TortoiseSVN una comoda estensione gui per windows e Subclipse un plugin per Eclipse.

November 25 From Wikipedia, the free encyclopedia.

November 25 is the 329th (in leap years the 330th) day of the year in the Gregorian calendar. There are 36 days remaining.

Events:

• 1758 – French and Indian War: British forces capture Fort Duquesne from French control.
• 1783 – American Revolutionary War: The last British troops leave New York City three months after the signing of the Treaty of Paris.
• 1863 – American Civil War: Battle of Missionary Ridge – At Missionary Ridge in Tennessee, Union forces led by General Ulysses S. Grant break the Siege of Chattanooga by routing Confederate troops under General Braxton Bragg.
• 1874 – The United States Greenback Party is established as a political party made primarily of farmers financially hurt by the Panic of 1873.
• 1886 – Indian Wars: In retaliation for the dramatic American defeat at the Battle of the Little Bighorn, United States Army troops sack Chief Dull Knife’s sleeping Cheyenne village at the headwaters of the Powder River.
• 1936 – In Berlin, Nazi-Germany and Japan sign the Anti-Comintern Pact, thus agreeing to consult on what measures to take “to safeguard their common interests” in case of an unprovoked attack by the Soviet Union against either nation.
• 1940 – Woody Woodpecker first appeared in the film “Knock Knock”.
• 1944 – World War II: A German V-2 rocket hits a Woolworth’s store in Deptford, killing 160 shoppers.
• 1947 – Red Scare: The “Hollywood Ten” are blacklisted by Hollywood movie studios.
• 1947 – New Zealand ratifies the Statute of Westminster and thus becomes independent of legislative control by the United Kingdom.
• 1952 – Agatha Christie’s murder-mystery play The Mousetrap opens at the Ambassadors Theatre in London (as of 2003 it is the longest continuously running play in history).
• 1958 – French Sudan gains autonomy as a self-governing member of the French Community.
• 1960 – Mirabal sisters assasinated in the Dominican Republic.
• 1963 – John F. Kennedy assassination: The late US President John F. Kennedy is buried at Arlington National Cemetery.
• 1970 – In Japan, world-famous author Yukio Mishima commits ritualistic suicide after failing to sway public opinion toward his extreme political beliefs.
• 1973 – Greek President George Papadopoulos is ousted in military coup led by Lieutenant General Phaidon Gizikis.
• 1975 – Suriname becomes independent.
• 1980 – No Más Fight: Sugar Ray Leonard recovers the WBC world welterweight boxing title in a fight against Roberto Duran.
• 1986 – Iran Contra Affair: US Attorney General Edwin Meese announces that profits from covert weapons sales to Iran were illegally diverted to the anti-communist Contra rebels in Nicaragua. Also, Fawn Hall was purported to have smuggled confidential papers out of the office of her employer, Oliver North.
• 1992 – The Czechoslovakia Federal Assembly votes to split the country into the Czech Republic and Slovakia starting on January 1, 1993.
• 1994 – Sony founder Akio Morita announces he will be stepping down as CEO of the floundering company.
• 1999 – The United Nations General Assembly passes a resolution designating November 25 as the annual International Day to Eliminate Violence Against Women.
• 2002 – US President George W. Bush signs the Homeland Security Act into law.

Births:

• 1562 – Félix Lope de Vega, playwright (d. 1635)
• 1577 – Piet Hein (Netherlands), naval commander and folk hero (d. 1629)
• 1609 – Henrietta Maria, Queen Consort of England, Scotland and Ireland through her marriage to Charles I (d. 1669)
• 1817 – John Bigelow, American statesman, author (d. 1911)
• 1830 – Lina Morgenstern, writer (d. 1909)
• 1835 – Andrew Carnegie, industrialist, philanthropist (d. 1919)
• 1844 – Karl Benz, engineer (d. 1929)
• 1846 – Carry Nation, temperance advocate (d. 1911)
• 1874 – Joe Gans, American boxer (d. 1910)
• 1881 – Pope John XXIII (d. 1963)
• 1883 – Harvey Spencer Lewis, F.R.C., Rosicrucian, founder of AMORC
• 1893 – Joseph Krutch, American naturalist, author (d. 1970)
• 1895 – Ludvík Svoboda politician and Czechoslovakia President (d. 1979)
• 1896 – Virgil Thomson, composer, music critic (d. 1989)
• 1904 – Lillian Copeland, American athlete
• 1913 – Lewis Thomas, physician, essayist (d. 1993)
• 1914 – Léon Zitrone, animator
• 1914 – Joe DiMaggio, baseball player (d. 1999)
• 1915 – Augusto Pinochet, Chilean politician
• 1920 – Ricardo Montalban, actor
• 1926 – Poul Anderson, science fiction writer (d. 2001)
• 1933 – Kathryn Grant, actress
• 1940 – Reinhard Furrer, physicist, astronaut (d. 1995)
• 1940 – Joe Gibbs, Football Hall of Fame coach
• 1944 – Ben Stein, actor, game show host, political consultant
• 1947 – John Larroquette, actor
• 1952 – Imran Khan, cricket player
• 1959 – Charles Kennedy, British politician
• 1960 – Amy Grant, singer
• 1960 – John F. Kennedy Jr., journalist (d. 1999)
• 1971 – Christina Applegate, American actress
• 1971 – Magnus Arvedson, hockey player
• 1978 – Shina Ringo, Japanese musician, singer, and song writer.
• 1981 – Barbara and Jenna Bush, daughters of President George W. Bush
• 1986 – Amber Hagerman, kidnapping, murder victim (d. 1996)

Holidays and observances:

• Celebration for the year 2003 of the Muslim festival of Eid (which has no set date in the Gregorian calendar because the Muslim calendar is based on the lunar, not the solar, cycle)
• Feast day of St Catherine Laboure